/*
|
/*
|
* tclWinPipe.c --
|
* tclWinPipe.c --
|
*
|
*
|
* This file implements the Windows-specific exec pipeline functions,
|
* This file implements the Windows-specific exec pipeline functions,
|
* the "pipe" channel driver, and the "pid" Tcl command.
|
* the "pipe" channel driver, and the "pid" Tcl command.
|
*
|
*
|
* Copyright (c) 1996-1997 by Sun Microsystems, Inc.
|
* Copyright (c) 1996-1997 by Sun Microsystems, Inc.
|
*
|
*
|
* See the file "license.terms" for information on usage and redistribution
|
* See the file "license.terms" for information on usage and redistribution
|
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
|
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
|
*
|
*
|
* RCS: @(#) $Id: tclWinPipe.c,v 1.1.1.1 2002-01-16 10:25:39 markom Exp $
|
* RCS: @(#) $Id: tclWinPipe.c,v 1.1.1.1 2002-01-16 10:25:39 markom Exp $
|
*/
|
*/
|
|
|
#include "tclWinInt.h"
|
#include "tclWinInt.h"
|
|
|
/* CYGNUS LOCAL */
|
/* CYGNUS LOCAL */
|
#ifndef __CYGWIN__
|
#ifndef __CYGWIN__
|
#include <dos.h>
|
#include <dos.h>
|
#endif
|
#endif
|
/* END CYGNUS LOCAL */
|
/* END CYGNUS LOCAL */
|
#include <fcntl.h>
|
#include <fcntl.h>
|
#include <io.h>
|
#include <io.h>
|
#include <sys/stat.h>
|
#include <sys/stat.h>
|
|
|
/*
|
/*
|
* The following variable is used to tell whether this module has been
|
* The following variable is used to tell whether this module has been
|
* initialized.
|
* initialized.
|
*/
|
*/
|
|
|
static int initialized = 0;
|
static int initialized = 0;
|
|
|
/*
|
/*
|
* The following defines identify the various types of applications that
|
* The following defines identify the various types of applications that
|
* run under windows. There is special case code for the various types.
|
* run under windows. There is special case code for the various types.
|
*/
|
*/
|
|
|
#define APPL_NONE 0
|
#define APPL_NONE 0
|
#define APPL_DOS 1
|
#define APPL_DOS 1
|
#define APPL_WIN3X 2
|
#define APPL_WIN3X 2
|
#define APPL_WIN32 3
|
#define APPL_WIN32 3
|
|
|
/*
|
/*
|
* The following constants and structures are used to encapsulate the state
|
* The following constants and structures are used to encapsulate the state
|
* of various types of files used in a pipeline.
|
* of various types of files used in a pipeline.
|
*/
|
*/
|
|
|
#define WIN32S_PIPE 1 /* Win32s emulated pipe. */
|
#define WIN32S_PIPE 1 /* Win32s emulated pipe. */
|
#define WIN32S_TMPFILE 2 /* Win32s emulated temporary file. */
|
#define WIN32S_TMPFILE 2 /* Win32s emulated temporary file. */
|
#define WIN_FILE 3 /* Basic Win32 file. */
|
#define WIN_FILE 3 /* Basic Win32 file. */
|
|
|
/*
|
/*
|
* This structure encapsulates the common state associated with all file
|
* This structure encapsulates the common state associated with all file
|
* types used in a pipeline.
|
* types used in a pipeline.
|
*/
|
*/
|
|
|
typedef struct WinFile {
|
typedef struct WinFile {
|
int type; /* One of the file types defined above. */
|
int type; /* One of the file types defined above. */
|
HANDLE handle; /* Open file handle. */
|
HANDLE handle; /* Open file handle. */
|
} WinFile;
|
} WinFile;
|
|
|
/*
|
/*
|
* The following structure is used to keep track of temporary files under
|
* The following structure is used to keep track of temporary files under
|
* Win32s and delete the disk file when the open handle is closed.
|
* Win32s and delete the disk file when the open handle is closed.
|
* The type field will be WIN32S_TMPFILE.
|
* The type field will be WIN32S_TMPFILE.
|
*/
|
*/
|
|
|
typedef struct TmpFile {
|
typedef struct TmpFile {
|
WinFile file; /* Common part. */
|
WinFile file; /* Common part. */
|
char name[MAX_PATH]; /* Name of temp file. */
|
char name[MAX_PATH]; /* Name of temp file. */
|
} TmpFile;
|
} TmpFile;
|
|
|
/*
|
/*
|
* The following structure represents a synchronous pipe under Win32s.
|
* The following structure represents a synchronous pipe under Win32s.
|
* The type field will be WIN32S_PIPE. The handle field will refer to
|
* The type field will be WIN32S_PIPE. The handle field will refer to
|
* an open file when Tcl is reading from the "pipe", otherwise it is
|
* an open file when Tcl is reading from the "pipe", otherwise it is
|
* INVALID_HANDLE_VALUE.
|
* INVALID_HANDLE_VALUE.
|
*/
|
*/
|
|
|
typedef struct WinPipe {
|
typedef struct WinPipe {
|
WinFile file; /* Common part. */
|
WinFile file; /* Common part. */
|
struct WinPipe *otherPtr; /* Pointer to the WinPipe structure that
|
struct WinPipe *otherPtr; /* Pointer to the WinPipe structure that
|
* corresponds to the other end of this
|
* corresponds to the other end of this
|
* pipe. */
|
* pipe. */
|
char *fileName; /* The name of the staging file that gets
|
char *fileName; /* The name of the staging file that gets
|
* the data written to this pipe. Malloc'd.
|
* the data written to this pipe. Malloc'd.
|
* and shared by both ends of the pipe. Only
|
* and shared by both ends of the pipe. Only
|
* when both ends are freed will fileName be
|
* when both ends are freed will fileName be
|
* freed and the file it refers to deleted. */
|
* freed and the file it refers to deleted. */
|
} WinPipe;
|
} WinPipe;
|
|
|
/*
|
/*
|
* This list is used to map from pids to process handles.
|
* This list is used to map from pids to process handles.
|
*/
|
*/
|
|
|
typedef struct ProcInfo {
|
typedef struct ProcInfo {
|
HANDLE hProcess;
|
HANDLE hProcess;
|
DWORD dwProcessId;
|
DWORD dwProcessId;
|
struct ProcInfo *nextPtr;
|
struct ProcInfo *nextPtr;
|
} ProcInfo;
|
} ProcInfo;
|
|
|
static ProcInfo *procList;
|
static ProcInfo *procList;
|
|
|
/*
|
/*
|
* State flags used in the PipeInfo structure below.
|
* State flags used in the PipeInfo structure below.
|
*/
|
*/
|
|
|
#define PIPE_PENDING (1<<0) /* Message is pending in the queue. */
|
#define PIPE_PENDING (1<<0) /* Message is pending in the queue. */
|
#define PIPE_ASYNC (1<<1) /* Channel is non-blocking. */
|
#define PIPE_ASYNC (1<<1) /* Channel is non-blocking. */
|
#define PIPE_READABLE (1<<2) /* Pipe is readable. */
|
#define PIPE_READABLE (1<<2) /* Pipe is readable. */
|
#define PIPE_CLOSED (1<<3) /* Pipe is being closed. */
|
#define PIPE_CLOSED (1<<3) /* Pipe is being closed. */
|
#define PIPE_HAS_THREAD (1<<4) /* Pipe has an associated thread. */
|
#define PIPE_HAS_THREAD (1<<4) /* Pipe has an associated thread. */
|
#define PIPE_READAHEAD (1<<5) /* Readahead byte is valid. */
|
#define PIPE_READAHEAD (1<<5) /* Readahead byte is valid. */
|
|
|
/*
|
/*
|
* This structure describes per-instance data for a pipe based channel.
|
* This structure describes per-instance data for a pipe based channel.
|
*/
|
*/
|
|
|
typedef struct PipeInfo {
|
typedef struct PipeInfo {
|
Tcl_Channel channel; /* Pointer to channel structure. */
|
Tcl_Channel channel; /* Pointer to channel structure. */
|
int validMask; /* OR'ed combination of TCL_READABLE,
|
int validMask; /* OR'ed combination of TCL_READABLE,
|
* TCL_WRITABLE, or TCL_EXCEPTION: indicates
|
* TCL_WRITABLE, or TCL_EXCEPTION: indicates
|
* which operations are valid on the file. */
|
* which operations are valid on the file. */
|
int watchMask; /* OR'ed combination of TCL_READABLE,
|
int watchMask; /* OR'ed combination of TCL_READABLE,
|
* TCL_WRITABLE, or TCL_EXCEPTION: indicates
|
* TCL_WRITABLE, or TCL_EXCEPTION: indicates
|
* which events should be reported. */
|
* which events should be reported. */
|
int flags; /* State flags, see above for a list. */
|
int flags; /* State flags, see above for a list. */
|
TclFile readFile; /* Output from pipe. */
|
TclFile readFile; /* Output from pipe. */
|
TclFile writeFile; /* Input from pipe. */
|
TclFile writeFile; /* Input from pipe. */
|
TclFile errorFile; /* Error output from pipe. */
|
TclFile errorFile; /* Error output from pipe. */
|
int numPids; /* Number of processes attached to pipe. */
|
int numPids; /* Number of processes attached to pipe. */
|
Tcl_Pid *pidPtr; /* Pids of attached processes. */
|
Tcl_Pid *pidPtr; /* Pids of attached processes. */
|
struct PipeInfo *nextPtr; /* Pointer to next registered pipe. */
|
struct PipeInfo *nextPtr; /* Pointer to next registered pipe. */
|
/* CYGNUS LOCAL: Several new fields. */
|
/* CYGNUS LOCAL: Several new fields. */
|
HANDLE flagsMutex; /* Mutex to control access to flags. */
|
HANDLE flagsMutex; /* Mutex to control access to flags. */
|
HANDLE mutex; /* Mutex for read fields. */
|
HANDLE mutex; /* Mutex for read fields. */
|
HANDLE tryReadEvent; /* Event to tell thread to try a read. */
|
HANDLE tryReadEvent; /* Event to tell thread to try a read. */
|
char readAhead; /* Read ahead byte. */
|
char readAhead; /* Read ahead byte. */
|
} PipeInfo;
|
} PipeInfo;
|
|
|
/*
|
/*
|
* The following pointer refers to the head of the list of pipes
|
* The following pointer refers to the head of the list of pipes
|
* that are being watched for file events.
|
* that are being watched for file events.
|
*/
|
*/
|
|
|
static PipeInfo *firstPipePtr;
|
static PipeInfo *firstPipePtr;
|
|
|
/*
|
/*
|
* The following structure is what is added to the Tcl event queue when
|
* The following structure is what is added to the Tcl event queue when
|
* pipe events are generated.
|
* pipe events are generated.
|
*/
|
*/
|
|
|
typedef struct PipeEvent {
|
typedef struct PipeEvent {
|
Tcl_Event header; /* Information that is standard for
|
Tcl_Event header; /* Information that is standard for
|
* all events. */
|
* all events. */
|
PipeInfo *infoPtr; /* Pointer to pipe info structure. Note
|
PipeInfo *infoPtr; /* Pointer to pipe info structure. Note
|
* that we still have to verify that the
|
* that we still have to verify that the
|
* pipe exists before dereferencing this
|
* pipe exists before dereferencing this
|
* pointer. */
|
* pointer. */
|
} PipeEvent;
|
} PipeEvent;
|
|
|
/*
|
/*
|
* Declarations for functions used only in this file.
|
* Declarations for functions used only in this file.
|
*/
|
*/
|
|
|
static int ApplicationType(Tcl_Interp *interp, const char *fileName,
|
static int ApplicationType(Tcl_Interp *interp, const char *fileName,
|
char *fullName);
|
char *fullName);
|
static void BuildCommandLine(int argc, char **argv, Tcl_DString *linePtr);
|
static void BuildCommandLine(int argc, char **argv, Tcl_DString *linePtr);
|
static void CopyChannel(HANDLE dst, HANDLE src);
|
static void CopyChannel(HANDLE dst, HANDLE src);
|
static BOOL HasConsole(void);
|
static BOOL HasConsole(void);
|
static TclFile MakeFile(HANDLE handle);
|
static TclFile MakeFile(HANDLE handle);
|
static char * MakeTempFile(Tcl_DString *namePtr);
|
static char * MakeTempFile(Tcl_DString *namePtr);
|
static int PipeBlockModeProc(ClientData instanceData, int mode);
|
static int PipeBlockModeProc(ClientData instanceData, int mode);
|
static void PipeCheckProc _ANSI_ARGS_((ClientData clientData,
|
static void PipeCheckProc _ANSI_ARGS_((ClientData clientData,
|
int flags));
|
int flags));
|
static int PipeCloseProc(ClientData instanceData, Tcl_Interp *interp);
|
static int PipeCloseProc(ClientData instanceData, Tcl_Interp *interp);
|
static int PipeEventProc(Tcl_Event *evPtr, int flags);
|
static int PipeEventProc(Tcl_Event *evPtr, int flags);
|
static void PipeExitHandler(ClientData clientData);
|
static void PipeExitHandler(ClientData clientData);
|
static int PipeGetHandleProc(ClientData instanceData, int direction,
|
static int PipeGetHandleProc(ClientData instanceData, int direction,
|
ClientData *handlePtr);
|
ClientData *handlePtr);
|
static void PipeInit(void);
|
static void PipeInit(void);
|
static int PipeInputProc(ClientData instanceData, char *buf, int toRead,
|
static int PipeInputProc(ClientData instanceData, char *buf, int toRead,
|
int *errorCode);
|
int *errorCode);
|
static int PipeOutputProc(ClientData instanceData, char *buf, int toWrite,
|
static int PipeOutputProc(ClientData instanceData, char *buf, int toWrite,
|
int *errorCode);
|
int *errorCode);
|
static void PipeWatchProc(ClientData instanceData, int mask);
|
static void PipeWatchProc(ClientData instanceData, int mask);
|
static void PipeSetupProc _ANSI_ARGS_((ClientData clientData,
|
static void PipeSetupProc _ANSI_ARGS_((ClientData clientData,
|
int flags));
|
int flags));
|
static int TempFileName(char name[MAX_PATH]);
|
static int TempFileName(char name[MAX_PATH]);
|
|
|
/* CYGNUS LOCAL. */
|
/* CYGNUS LOCAL. */
|
static int PipeGetFlags _ANSI_ARGS_((PipeInfo *));
|
static int PipeGetFlags _ANSI_ARGS_((PipeInfo *));
|
static void PipeSetFlag _ANSI_ARGS_((PipeInfo *, int));
|
static void PipeSetFlag _ANSI_ARGS_((PipeInfo *, int));
|
static void PipeResetFlag _ANSI_ARGS_((PipeInfo *, int));
|
static void PipeResetFlag _ANSI_ARGS_((PipeInfo *, int));
|
static DWORD PipeThread _ANSI_ARGS_((LPVOID arg));
|
static DWORD PipeThread _ANSI_ARGS_((LPVOID arg));
|
static LRESULT CALLBACK PipeProc _ANSI_ARGS_((HWND hwnd, UINT message,
|
static LRESULT CALLBACK PipeProc _ANSI_ARGS_((HWND hwnd, UINT message,
|
WPARAM wParam, LPARAM lParam));
|
WPARAM wParam, LPARAM lParam));
|
|
|
/*
|
/*
|
* This structure describes the channel type structure for command pipe
|
* This structure describes the channel type structure for command pipe
|
* based IO.
|
* based IO.
|
*/
|
*/
|
|
|
static Tcl_ChannelType pipeChannelType = {
|
static Tcl_ChannelType pipeChannelType = {
|
"pipe", /* Type name. */
|
"pipe", /* Type name. */
|
PipeBlockModeProc, /* Set blocking or non-blocking mode.*/
|
PipeBlockModeProc, /* Set blocking or non-blocking mode.*/
|
PipeCloseProc, /* Close proc. */
|
PipeCloseProc, /* Close proc. */
|
PipeInputProc, /* Input proc. */
|
PipeInputProc, /* Input proc. */
|
PipeOutputProc, /* Output proc. */
|
PipeOutputProc, /* Output proc. */
|
NULL, /* Seek proc. */
|
NULL, /* Seek proc. */
|
NULL, /* Set option proc. */
|
NULL, /* Set option proc. */
|
NULL, /* Get option proc. */
|
NULL, /* Get option proc. */
|
PipeWatchProc, /* Set up notifier to watch the channel. */
|
PipeWatchProc, /* Set up notifier to watch the channel. */
|
PipeGetHandleProc, /* Get an OS handle from channel. */
|
PipeGetHandleProc, /* Get an OS handle from channel. */
|
};
|
};
|
|
|
/* CYGNUS LOCAL: Event notification window. */
|
/* CYGNUS LOCAL: Event notification window. */
|
|
|
static HWND pipeHwnd;
|
static HWND pipeHwnd;
|
|
|
#define PIPE_MESSAGE (WM_USER + 1)
|
#define PIPE_MESSAGE (WM_USER + 1)
|
|
|
/* CYGNUS LOCAL: Because we use a thread that manipulates the flags
|
/* CYGNUS LOCAL: Because we use a thread that manipulates the flags
|
field, we use helper routines for the field. */
|
field, we use helper routines for the field. */
|
|
|
static int
|
static int
|
PipeGetFlags(pipe)
|
PipeGetFlags(pipe)
|
PipeInfo *pipe;
|
PipeInfo *pipe;
|
{
|
{
|
int flags;
|
int flags;
|
|
|
WaitForSingleObject(pipe->flagsMutex, INFINITE);
|
WaitForSingleObject(pipe->flagsMutex, INFINITE);
|
flags = pipe->flags;
|
flags = pipe->flags;
|
ReleaseMutex(pipe->flagsMutex);
|
ReleaseMutex(pipe->flagsMutex);
|
return flags;
|
return flags;
|
}
|
}
|
|
|
static void
|
static void
|
PipeSetFlag(pipe, flag)
|
PipeSetFlag(pipe, flag)
|
PipeInfo *pipe;
|
PipeInfo *pipe;
|
int flag;
|
int flag;
|
{
|
{
|
WaitForSingleObject(pipe->flagsMutex, INFINITE);
|
WaitForSingleObject(pipe->flagsMutex, INFINITE);
|
pipe->flags |= flag;
|
pipe->flags |= flag;
|
ReleaseMutex(pipe->flagsMutex);
|
ReleaseMutex(pipe->flagsMutex);
|
}
|
}
|
|
|
static void
|
static void
|
PipeResetFlag(pipe, flag)
|
PipeResetFlag(pipe, flag)
|
PipeInfo *pipe;
|
PipeInfo *pipe;
|
int flag;
|
int flag;
|
{
|
{
|
WaitForSingleObject(pipe->flagsMutex, INFINITE);
|
WaitForSingleObject(pipe->flagsMutex, INFINITE);
|
pipe->flags &= ~ (flag);
|
pipe->flags &= ~ (flag);
|
ReleaseMutex(pipe->flagsMutex);
|
ReleaseMutex(pipe->flagsMutex);
|
}
|
}
|
|
|
/* CYGNUS LOCAL: We use a thread to detect when a pipe may be read.
|
/* CYGNUS LOCAL: We use a thread to detect when a pipe may be read.
|
The thread runs this function. The argument is the pipe to read. */
|
The thread runs this function. The argument is the pipe to read. */
|
|
|
static DWORD
|
static DWORD
|
PipeThread(arg)
|
PipeThread(arg)
|
LPVOID arg;
|
LPVOID arg;
|
{
|
{
|
PipeInfo *pipe = (PipeInfo *) arg;
|
PipeInfo *pipe = (PipeInfo *) arg;
|
WinFile *file = (WinFile*) pipe->readFile;
|
WinFile *file = (WinFile*) pipe->readFile;
|
HANDLE handle = file->handle;
|
HANDLE handle = file->handle;
|
|
|
while (1) {
|
while (1) {
|
char b;
|
char b;
|
DWORD got;
|
DWORD got;
|
|
|
WaitForSingleObject(pipe->tryReadEvent, INFINITE);
|
WaitForSingleObject(pipe->tryReadEvent, INFINITE);
|
|
|
if (PipeGetFlags(pipe) & PIPE_CLOSED) {
|
if (PipeGetFlags(pipe) & PIPE_CLOSED) {
|
break;
|
break;
|
}
|
}
|
|
|
WaitForSingleObject(pipe->mutex, INFINITE);
|
WaitForSingleObject(pipe->mutex, INFINITE);
|
|
|
if ((PipeGetFlags(pipe) & PIPE_READAHEAD) == 0) {
|
if ((PipeGetFlags(pipe) & PIPE_READAHEAD) == 0) {
|
if (ReadFile(handle, &b, 1, &got, NULL) && got == 1) {
|
if (ReadFile(handle, &b, 1, &got, NULL) && got == 1) {
|
pipe->readAhead = b;
|
pipe->readAhead = b;
|
PipeSetFlag(pipe, PIPE_READAHEAD);
|
PipeSetFlag(pipe, PIPE_READAHEAD);
|
}
|
}
|
}
|
}
|
|
|
PipeSetFlag(pipe, PIPE_READABLE);
|
PipeSetFlag(pipe, PIPE_READABLE);
|
|
|
/* We've indicated that the pipe is readable, so ignore any
|
/* We've indicated that the pipe is readable, so ignore any
|
recent requests to do so. */
|
recent requests to do so. */
|
ResetEvent(pipe->tryReadEvent);
|
ResetEvent(pipe->tryReadEvent);
|
|
|
ReleaseMutex(pipe->mutex);
|
ReleaseMutex(pipe->mutex);
|
|
|
if (PipeGetFlags(pipe) & PIPE_CLOSED) {
|
if (PipeGetFlags(pipe) & PIPE_CLOSED) {
|
break;
|
break;
|
}
|
}
|
|
|
/* Post a message to wake up the event loop. */
|
/* Post a message to wake up the event loop. */
|
PostMessage(pipeHwnd, PIPE_MESSAGE, 0, (LPARAM) pipe);
|
PostMessage(pipeHwnd, PIPE_MESSAGE, 0, (LPARAM) pipe);
|
}
|
}
|
|
|
/* PipeCloseProc will set PIPE_CLOSED when the pipe is ready to be
|
/* PipeCloseProc will set PIPE_CLOSED when the pipe is ready to be
|
closed and freed. */
|
closed and freed. */
|
|
|
CloseHandle(pipe->flagsMutex);
|
CloseHandle(pipe->flagsMutex);
|
CloseHandle(pipe->tryReadEvent);
|
CloseHandle(pipe->tryReadEvent);
|
CloseHandle(pipe->mutex);
|
CloseHandle(pipe->mutex);
|
ckfree((char *)pipe);
|
ckfree((char *)pipe);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* CYGNUS LOCAL: This function is called when the PipeThread posts a
|
/* CYGNUS LOCAL: This function is called when the PipeThread posts a
|
message. */
|
message. */
|
|
|
static LRESULT CALLBACK
|
static LRESULT CALLBACK
|
PipeProc(hwnd, message, wParam, lParam)
|
PipeProc(hwnd, message, wParam, lParam)
|
HWND hwnd;
|
HWND hwnd;
|
UINT message;
|
UINT message;
|
WPARAM wParam;
|
WPARAM wParam;
|
LPARAM lParam;
|
LPARAM lParam;
|
{
|
{
|
if (message != PIPE_MESSAGE) {
|
if (message != PIPE_MESSAGE) {
|
return DefWindowProc(hwnd, message, wParam, lParam);
|
return DefWindowProc(hwnd, message, wParam, lParam);
|
}
|
}
|
|
|
/* This function really only exists to wake up the event loop. We
|
/* This function really only exists to wake up the event loop. We
|
don't actually have to do anything. */
|
don't actually have to do anything. */
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* PipeInit --
|
* PipeInit --
|
*
|
*
|
* This function initializes the static variables for this file.
|
* This function initializes the static variables for this file.
|
*
|
*
|
* Results:
|
* Results:
|
* None.
|
* None.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* Creates a new event source.
|
* Creates a new event source.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
static void
|
static void
|
PipeInit()
|
PipeInit()
|
{
|
{
|
WNDCLASS class;
|
WNDCLASS class;
|
|
|
initialized = 1;
|
initialized = 1;
|
firstPipePtr = NULL;
|
firstPipePtr = NULL;
|
procList = NULL;
|
procList = NULL;
|
Tcl_CreateEventSource(PipeSetupProc, PipeCheckProc, NULL);
|
Tcl_CreateEventSource(PipeSetupProc, PipeCheckProc, NULL);
|
Tcl_CreateExitHandler(PipeExitHandler, NULL);
|
Tcl_CreateExitHandler(PipeExitHandler, NULL);
|
|
|
/* CYGNUS LOCAL: Create a window for asynchronous notification. */
|
/* CYGNUS LOCAL: Create a window for asynchronous notification. */
|
|
|
class.style = 0;
|
class.style = 0;
|
class.cbClsExtra = 0;
|
class.cbClsExtra = 0;
|
class.cbWndExtra = 0;
|
class.cbWndExtra = 0;
|
class.hInstance = TclWinGetTclInstance();
|
class.hInstance = TclWinGetTclInstance();
|
class.hbrBackground = NULL;
|
class.hbrBackground = NULL;
|
class.lpszMenuName = NULL;
|
class.lpszMenuName = NULL;
|
class.lpszClassName = "TclPipe";
|
class.lpszClassName = "TclPipe";
|
class.lpfnWndProc = PipeProc;
|
class.lpfnWndProc = PipeProc;
|
class.hIcon = NULL;
|
class.hIcon = NULL;
|
class.hCursor = NULL;
|
class.hCursor = NULL;
|
|
|
if (RegisterClass(&class)) {
|
if (RegisterClass(&class)) {
|
pipeHwnd = CreateWindow("TclPipe", "TclPipe", WS_TILED, 0, 0,
|
pipeHwnd = CreateWindow("TclPipe", "TclPipe", WS_TILED, 0, 0,
|
0, 0, NULL, NULL, class.hInstance, NULL);
|
0, 0, NULL, NULL, class.hInstance, NULL);
|
} else {
|
} else {
|
pipeHwnd = NULL;
|
pipeHwnd = NULL;
|
TclWinConvertError(GetLastError());
|
TclWinConvertError(GetLastError());
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* PipeExitHandler --
|
* PipeExitHandler --
|
*
|
*
|
* This function is called to cleanup the pipe module before
|
* This function is called to cleanup the pipe module before
|
* Tcl is unloaded.
|
* Tcl is unloaded.
|
*
|
*
|
* Results:
|
* Results:
|
* None.
|
* None.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* Removes the pipe event source.
|
* Removes the pipe event source.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
static void
|
static void
|
PipeExitHandler(clientData)
|
PipeExitHandler(clientData)
|
ClientData clientData; /* Old window proc */
|
ClientData clientData; /* Old window proc */
|
{
|
{
|
Tcl_DeleteEventSource(PipeSetupProc, PipeCheckProc, NULL);
|
Tcl_DeleteEventSource(PipeSetupProc, PipeCheckProc, NULL);
|
initialized = 0;
|
initialized = 0;
|
/* CYGNUS LOCAL: Delete the window. */
|
/* CYGNUS LOCAL: Delete the window. */
|
UnregisterClass("TclPipe", TclWinGetTclInstance());
|
UnregisterClass("TclPipe", TclWinGetTclInstance());
|
if (pipeHwnd != NULL) {
|
if (pipeHwnd != NULL) {
|
DestroyWindow(pipeHwnd);
|
DestroyWindow(pipeHwnd);
|
pipeHwnd = NULL;
|
pipeHwnd = NULL;
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* PipeSetupProc --
|
* PipeSetupProc --
|
*
|
*
|
* This procedure is invoked before Tcl_DoOneEvent blocks waiting
|
* This procedure is invoked before Tcl_DoOneEvent blocks waiting
|
* for an event.
|
* for an event.
|
*
|
*
|
* Results:
|
* Results:
|
* None.
|
* None.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* Adjusts the block time if needed.
|
* Adjusts the block time if needed.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
void
|
void
|
PipeSetupProc(data, flags)
|
PipeSetupProc(data, flags)
|
ClientData data; /* Not used. */
|
ClientData data; /* Not used. */
|
int flags; /* Event flags as passed to Tcl_DoOneEvent. */
|
int flags; /* Event flags as passed to Tcl_DoOneEvent. */
|
{
|
{
|
PipeInfo *infoPtr;
|
PipeInfo *infoPtr;
|
Tcl_Time blockTime = { 0, 0 };
|
Tcl_Time blockTime = { 0, 0 };
|
|
|
if (!(flags & TCL_FILE_EVENTS)) {
|
if (!(flags & TCL_FILE_EVENTS)) {
|
return;
|
return;
|
}
|
}
|
|
|
/*
|
/*
|
* Check to see if there is a watched pipe. If so, poll.
|
* Check to see if there is a watched pipe. If so, poll.
|
*/
|
*/
|
|
|
for (infoPtr = firstPipePtr; infoPtr != NULL; infoPtr = infoPtr->nextPtr) {
|
for (infoPtr = firstPipePtr; infoPtr != NULL; infoPtr = infoPtr->nextPtr) {
|
/* CYGNUS LOCAL: Only poll for a readable pipe if it really is
|
/* CYGNUS LOCAL: Only poll for a readable pipe if it really is
|
readable. */
|
readable. */
|
if ((infoPtr->watchMask &~ TCL_READABLE)
|
if ((infoPtr->watchMask &~ TCL_READABLE)
|
|| ((infoPtr->watchMask & TCL_READABLE)
|
|| ((infoPtr->watchMask & TCL_READABLE)
|
&& ((PipeGetFlags(infoPtr) & PIPE_HAS_THREAD) == 0
|
&& ((PipeGetFlags(infoPtr) & PIPE_HAS_THREAD) == 0
|
|| (PipeGetFlags(infoPtr) & PIPE_READABLE)))) {
|
|| (PipeGetFlags(infoPtr) & PIPE_READABLE)))) {
|
Tcl_SetMaxBlockTime(&blockTime);
|
Tcl_SetMaxBlockTime(&blockTime);
|
break;
|
break;
|
} else if (infoPtr->watchMask & TCL_READABLE) {
|
} else if (infoPtr->watchMask & TCL_READABLE) {
|
/* CYGNUS LOCAL: Tell the thread to try a read, and let us
|
/* CYGNUS LOCAL: Tell the thread to try a read, and let us
|
know when it is done. */
|
know when it is done. */
|
SetEvent(infoPtr->tryReadEvent);
|
SetEvent(infoPtr->tryReadEvent);
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* PipeCheckProc --
|
* PipeCheckProc --
|
*
|
*
|
* This procedure is called by Tcl_DoOneEvent to check the pipe
|
* This procedure is called by Tcl_DoOneEvent to check the pipe
|
* event source for events.
|
* event source for events.
|
*
|
*
|
* Results:
|
* Results:
|
* None.
|
* None.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* May queue an event.
|
* May queue an event.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
static void
|
static void
|
PipeCheckProc(data, flags)
|
PipeCheckProc(data, flags)
|
ClientData data; /* Not used. */
|
ClientData data; /* Not used. */
|
int flags; /* Event flags as passed to Tcl_DoOneEvent. */
|
int flags; /* Event flags as passed to Tcl_DoOneEvent. */
|
{
|
{
|
PipeInfo *infoPtr;
|
PipeInfo *infoPtr;
|
PipeEvent *evPtr;
|
PipeEvent *evPtr;
|
|
|
if (!(flags & TCL_FILE_EVENTS)) {
|
if (!(flags & TCL_FILE_EVENTS)) {
|
return;
|
return;
|
}
|
}
|
|
|
/*
|
/*
|
* Queue events for any watched pipes that don't already have events
|
* Queue events for any watched pipes that don't already have events
|
* queued.
|
* queued.
|
*/
|
*/
|
|
|
for (infoPtr = firstPipePtr; infoPtr != NULL; infoPtr = infoPtr->nextPtr) {
|
for (infoPtr = firstPipePtr; infoPtr != NULL; infoPtr = infoPtr->nextPtr) {
|
/* CYGNUS LOCAL: Only poll for a readable pipe if it really is
|
/* CYGNUS LOCAL: Only poll for a readable pipe if it really is
|
readable. */
|
readable. */
|
if (((infoPtr->watchMask &~ TCL_READABLE)
|
if (((infoPtr->watchMask &~ TCL_READABLE)
|
|| ((infoPtr->watchMask & TCL_READABLE)
|
|| ((infoPtr->watchMask & TCL_READABLE)
|
&& ((PipeGetFlags(infoPtr) & PIPE_HAS_THREAD) == 0
|
&& ((PipeGetFlags(infoPtr) & PIPE_HAS_THREAD) == 0
|
|| (PipeGetFlags(infoPtr) & PIPE_READABLE))))
|
|| (PipeGetFlags(infoPtr) & PIPE_READABLE))))
|
&& !(PipeGetFlags(infoPtr) & PIPE_PENDING)) {
|
&& !(PipeGetFlags(infoPtr) & PIPE_PENDING)) {
|
PipeSetFlag(infoPtr, PIPE_PENDING);
|
PipeSetFlag(infoPtr, PIPE_PENDING);
|
evPtr = (PipeEvent *) ckalloc(sizeof(PipeEvent));
|
evPtr = (PipeEvent *) ckalloc(sizeof(PipeEvent));
|
evPtr->header.proc = PipeEventProc;
|
evPtr->header.proc = PipeEventProc;
|
evPtr->infoPtr = infoPtr;
|
evPtr->infoPtr = infoPtr;
|
Tcl_QueueEvent((Tcl_Event *) evPtr, TCL_QUEUE_TAIL);
|
Tcl_QueueEvent((Tcl_Event *) evPtr, TCL_QUEUE_TAIL);
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* MakeFile --
|
* MakeFile --
|
*
|
*
|
* This function constructs a new TclFile from a given data and
|
* This function constructs a new TclFile from a given data and
|
* type value.
|
* type value.
|
*
|
*
|
* Results:
|
* Results:
|
* Returns a newly allocated WinFile as a TclFile.
|
* Returns a newly allocated WinFile as a TclFile.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* None.
|
* None.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
static TclFile
|
static TclFile
|
MakeFile(handle)
|
MakeFile(handle)
|
HANDLE handle; /* Type-specific data. */
|
HANDLE handle; /* Type-specific data. */
|
{
|
{
|
WinFile *filePtr;
|
WinFile *filePtr;
|
|
|
filePtr = (WinFile *) ckalloc(sizeof(WinFile));
|
filePtr = (WinFile *) ckalloc(sizeof(WinFile));
|
filePtr->type = WIN_FILE;
|
filePtr->type = WIN_FILE;
|
filePtr->handle = handle;
|
filePtr->handle = handle;
|
|
|
return (TclFile)filePtr;
|
return (TclFile)filePtr;
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* TclpMakeFile --
|
* TclpMakeFile --
|
*
|
*
|
* Make a TclFile from a channel.
|
* Make a TclFile from a channel.
|
*
|
*
|
* Results:
|
* Results:
|
* Returns a new TclFile or NULL on failure.
|
* Returns a new TclFile or NULL on failure.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* None.
|
* None.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
TclFile
|
TclFile
|
TclpMakeFile(channel, direction)
|
TclpMakeFile(channel, direction)
|
Tcl_Channel channel; /* Channel to get file from. */
|
Tcl_Channel channel; /* Channel to get file from. */
|
int direction; /* Either TCL_READABLE or TCL_WRITABLE. */
|
int direction; /* Either TCL_READABLE or TCL_WRITABLE. */
|
{
|
{
|
HANDLE handle;
|
HANDLE handle;
|
|
|
if (Tcl_GetChannelHandle(channel, direction,
|
if (Tcl_GetChannelHandle(channel, direction,
|
(ClientData *) &handle) == TCL_OK) {
|
(ClientData *) &handle) == TCL_OK) {
|
return MakeFile(handle);
|
return MakeFile(handle);
|
} else {
|
} else {
|
return (TclFile) NULL;
|
return (TclFile) NULL;
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* TempFileName --
|
* TempFileName --
|
*
|
*
|
* Gets a temporary file name and deals with the fact that the
|
* Gets a temporary file name and deals with the fact that the
|
* temporary file path provided by Windows may not actually exist
|
* temporary file path provided by Windows may not actually exist
|
* if the TMP or TEMP environment variables refer to a
|
* if the TMP or TEMP environment variables refer to a
|
* non-existent directory.
|
* non-existent directory.
|
*
|
*
|
* Results:
|
* Results:
|
* 0 if error, non-zero otherwise. If non-zero is returned, the
|
* 0 if error, non-zero otherwise. If non-zero is returned, the
|
* name buffer will be filled with a name that can be used to
|
* name buffer will be filled with a name that can be used to
|
* construct a temporary file.
|
* construct a temporary file.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* None.
|
* None.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
static int
|
static int
|
TempFileName(name)
|
TempFileName(name)
|
char name[MAX_PATH]; /* Buffer in which name for temporary
|
char name[MAX_PATH]; /* Buffer in which name for temporary
|
* file gets stored. */
|
* file gets stored. */
|
{
|
{
|
if ((GetTempPath(MAX_PATH, name) == 0) ||
|
if ((GetTempPath(MAX_PATH, name) == 0) ||
|
(GetTempFileName(name, "TCL", 0, name) == 0)) {
|
(GetTempFileName(name, "TCL", 0, name) == 0)) {
|
name[0] = '.';
|
name[0] = '.';
|
name[1] = '\0';
|
name[1] = '\0';
|
if (GetTempFileName(name, "TCL", 0, name) == 0) {
|
if (GetTempFileName(name, "TCL", 0, name) == 0) {
|
return 0;
|
return 0;
|
}
|
}
|
}
|
}
|
return 1;
|
return 1;
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* TclpCreateTempFile --
|
* TclpCreateTempFile --
|
*
|
*
|
* This function opens a unique file with the property that it
|
* This function opens a unique file with the property that it
|
* will be deleted when its file handle is closed. The temporary
|
* will be deleted when its file handle is closed. The temporary
|
* file is created in the system temporary directory.
|
* file is created in the system temporary directory.
|
*
|
*
|
* Results:
|
* Results:
|
* Returns a valid TclFile, or NULL on failure.
|
* Returns a valid TclFile, or NULL on failure.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* Creates a new temporary file.
|
* Creates a new temporary file.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
TclFile
|
TclFile
|
TclpCreateTempFile(contents, namePtr)
|
TclpCreateTempFile(contents, namePtr)
|
char *contents; /* String to write into temp file, or NULL. */
|
char *contents; /* String to write into temp file, or NULL. */
|
Tcl_DString *namePtr; /* If non-NULL, pointer to initialized
|
Tcl_DString *namePtr; /* If non-NULL, pointer to initialized
|
* DString that is filled with the name of
|
* DString that is filled with the name of
|
* the temp file that was created. */
|
* the temp file that was created. */
|
{
|
{
|
char name[MAX_PATH];
|
char name[MAX_PATH];
|
HANDLE handle;
|
HANDLE handle;
|
|
|
if (TempFileName(name) == 0) {
|
if (TempFileName(name) == 0) {
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
handle = CreateFile(name, GENERIC_READ | GENERIC_WRITE, 0, NULL,
|
handle = CreateFile(name, GENERIC_READ | GENERIC_WRITE, 0, NULL,
|
CREATE_ALWAYS, FILE_ATTRIBUTE_TEMPORARY|FILE_FLAG_DELETE_ON_CLOSE,
|
CREATE_ALWAYS, FILE_ATTRIBUTE_TEMPORARY|FILE_FLAG_DELETE_ON_CLOSE,
|
NULL);
|
NULL);
|
if (handle == INVALID_HANDLE_VALUE) {
|
if (handle == INVALID_HANDLE_VALUE) {
|
goto error;
|
goto error;
|
}
|
}
|
|
|
/*
|
/*
|
* Write the file out, doing line translations on the way.
|
* Write the file out, doing line translations on the way.
|
*/
|
*/
|
|
|
if (contents != NULL) {
|
if (contents != NULL) {
|
DWORD result, length;
|
DWORD result, length;
|
char *p;
|
char *p;
|
|
|
for (p = contents; *p != '\0'; p++) {
|
for (p = contents; *p != '\0'; p++) {
|
if (*p == '\n') {
|
if (*p == '\n') {
|
length = p - contents;
|
length = p - contents;
|
if (length > 0) {
|
if (length > 0) {
|
if (!WriteFile(handle, contents, length, &result, NULL)) {
|
if (!WriteFile(handle, contents, length, &result, NULL)) {
|
goto error;
|
goto error;
|
}
|
}
|
}
|
}
|
if (!WriteFile(handle, "\r\n", 2, &result, NULL)) {
|
if (!WriteFile(handle, "\r\n", 2, &result, NULL)) {
|
goto error;
|
goto error;
|
}
|
}
|
contents = p+1;
|
contents = p+1;
|
}
|
}
|
}
|
}
|
length = p - contents;
|
length = p - contents;
|
if (length > 0) {
|
if (length > 0) {
|
if (!WriteFile(handle, contents, length, &result, NULL)) {
|
if (!WriteFile(handle, contents, length, &result, NULL)) {
|
goto error;
|
goto error;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
if (SetFilePointer(handle, 0, NULL, FILE_BEGIN) == 0xFFFFFFFF) {
|
if (SetFilePointer(handle, 0, NULL, FILE_BEGIN) == 0xFFFFFFFF) {
|
goto error;
|
goto error;
|
}
|
}
|
|
|
if (namePtr != NULL) {
|
if (namePtr != NULL) {
|
Tcl_DStringAppend(namePtr, name, -1);
|
Tcl_DStringAppend(namePtr, name, -1);
|
}
|
}
|
|
|
/*
|
/*
|
* Under Win32s a file created with FILE_FLAG_DELETE_ON_CLOSE won't
|
* Under Win32s a file created with FILE_FLAG_DELETE_ON_CLOSE won't
|
* actually be deleted when it is closed, so we have to do it ourselves.
|
* actually be deleted when it is closed, so we have to do it ourselves.
|
*/
|
*/
|
|
|
if (TclWinGetPlatformId() == VER_PLATFORM_WIN32s) {
|
if (TclWinGetPlatformId() == VER_PLATFORM_WIN32s) {
|
TmpFile *tmpFilePtr = (TmpFile *) ckalloc(sizeof(TmpFile));
|
TmpFile *tmpFilePtr = (TmpFile *) ckalloc(sizeof(TmpFile));
|
tmpFilePtr->file.type = WIN32S_TMPFILE;
|
tmpFilePtr->file.type = WIN32S_TMPFILE;
|
tmpFilePtr->file.handle = handle;
|
tmpFilePtr->file.handle = handle;
|
strcpy(tmpFilePtr->name, name);
|
strcpy(tmpFilePtr->name, name);
|
return (TclFile)tmpFilePtr;
|
return (TclFile)tmpFilePtr;
|
} else {
|
} else {
|
return MakeFile(handle);
|
return MakeFile(handle);
|
}
|
}
|
|
|
error:
|
error:
|
TclWinConvertError(GetLastError());
|
TclWinConvertError(GetLastError());
|
CloseHandle(handle);
|
CloseHandle(handle);
|
DeleteFile(name);
|
DeleteFile(name);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* TclpOpenFile --
|
* TclpOpenFile --
|
*
|
*
|
* This function opens files for use in a pipeline.
|
* This function opens files for use in a pipeline.
|
*
|
*
|
* Results:
|
* Results:
|
* Returns a newly allocated TclFile structure containing the
|
* Returns a newly allocated TclFile structure containing the
|
* file handle.
|
* file handle.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* None.
|
* None.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
TclFile
|
TclFile
|
TclpOpenFile(path, mode)
|
TclpOpenFile(path, mode)
|
char *path;
|
char *path;
|
int mode;
|
int mode;
|
{
|
{
|
HANDLE handle;
|
HANDLE handle;
|
DWORD accessMode, createMode, shareMode, flags;
|
DWORD accessMode, createMode, shareMode, flags;
|
SECURITY_ATTRIBUTES sec;
|
SECURITY_ATTRIBUTES sec;
|
|
|
/*
|
/*
|
* Map the access bits to the NT access mode.
|
* Map the access bits to the NT access mode.
|
*/
|
*/
|
|
|
switch (mode & (O_RDONLY | O_WRONLY | O_RDWR)) {
|
switch (mode & (O_RDONLY | O_WRONLY | O_RDWR)) {
|
case O_RDONLY:
|
case O_RDONLY:
|
accessMode = GENERIC_READ;
|
accessMode = GENERIC_READ;
|
break;
|
break;
|
case O_WRONLY:
|
case O_WRONLY:
|
accessMode = GENERIC_WRITE;
|
accessMode = GENERIC_WRITE;
|
break;
|
break;
|
case O_RDWR:
|
case O_RDWR:
|
accessMode = (GENERIC_READ | GENERIC_WRITE);
|
accessMode = (GENERIC_READ | GENERIC_WRITE);
|
break;
|
break;
|
default:
|
default:
|
TclWinConvertError(ERROR_INVALID_FUNCTION);
|
TclWinConvertError(ERROR_INVALID_FUNCTION);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/*
|
/*
|
* Map the creation flags to the NT create mode.
|
* Map the creation flags to the NT create mode.
|
*/
|
*/
|
|
|
switch (mode & (O_CREAT | O_EXCL | O_TRUNC)) {
|
switch (mode & (O_CREAT | O_EXCL | O_TRUNC)) {
|
case (O_CREAT | O_EXCL):
|
case (O_CREAT | O_EXCL):
|
case (O_CREAT | O_EXCL | O_TRUNC):
|
case (O_CREAT | O_EXCL | O_TRUNC):
|
createMode = CREATE_NEW;
|
createMode = CREATE_NEW;
|
break;
|
break;
|
case (O_CREAT | O_TRUNC):
|
case (O_CREAT | O_TRUNC):
|
createMode = CREATE_ALWAYS;
|
createMode = CREATE_ALWAYS;
|
break;
|
break;
|
case O_CREAT:
|
case O_CREAT:
|
createMode = OPEN_ALWAYS;
|
createMode = OPEN_ALWAYS;
|
break;
|
break;
|
case O_TRUNC:
|
case O_TRUNC:
|
case (O_TRUNC | O_EXCL):
|
case (O_TRUNC | O_EXCL):
|
createMode = TRUNCATE_EXISTING;
|
createMode = TRUNCATE_EXISTING;
|
break;
|
break;
|
default:
|
default:
|
createMode = OPEN_EXISTING;
|
createMode = OPEN_EXISTING;
|
break;
|
break;
|
}
|
}
|
|
|
/*
|
/*
|
* If the file is not being created, use the existing file attributes.
|
* If the file is not being created, use the existing file attributes.
|
*/
|
*/
|
|
|
flags = 0;
|
flags = 0;
|
if (!(mode & O_CREAT)) {
|
if (!(mode & O_CREAT)) {
|
flags = GetFileAttributes(path);
|
flags = GetFileAttributes(path);
|
if (flags == 0xFFFFFFFF) {
|
if (flags == 0xFFFFFFFF) {
|
flags = 0;
|
flags = 0;
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
* Set up the security attributes so this file is not inherited by
|
* Set up the security attributes so this file is not inherited by
|
* child processes.
|
* child processes.
|
*/
|
*/
|
|
|
sec.nLength = sizeof(sec);
|
sec.nLength = sizeof(sec);
|
sec.lpSecurityDescriptor = NULL;
|
sec.lpSecurityDescriptor = NULL;
|
sec.bInheritHandle = 0;
|
sec.bInheritHandle = 0;
|
|
|
/*
|
/*
|
* Set up the file sharing mode. We want to allow simultaneous access.
|
* Set up the file sharing mode. We want to allow simultaneous access.
|
*/
|
*/
|
|
|
shareMode = FILE_SHARE_READ | FILE_SHARE_WRITE;
|
shareMode = FILE_SHARE_READ | FILE_SHARE_WRITE;
|
|
|
/*
|
/*
|
* Now we get to create the file.
|
* Now we get to create the file.
|
*/
|
*/
|
|
|
handle = CreateFile(path, accessMode, shareMode, &sec, createMode, flags,
|
handle = CreateFile(path, accessMode, shareMode, &sec, createMode, flags,
|
(HANDLE) NULL);
|
(HANDLE) NULL);
|
if (handle == INVALID_HANDLE_VALUE) {
|
if (handle == INVALID_HANDLE_VALUE) {
|
DWORD err = GetLastError();
|
DWORD err = GetLastError();
|
if ((err & 0xffffL) == ERROR_OPEN_FAILED) {
|
if ((err & 0xffffL) == ERROR_OPEN_FAILED) {
|
err = (mode & O_CREAT) ? ERROR_FILE_EXISTS : ERROR_FILE_NOT_FOUND;
|
err = (mode & O_CREAT) ? ERROR_FILE_EXISTS : ERROR_FILE_NOT_FOUND;
|
}
|
}
|
TclWinConvertError(err);
|
TclWinConvertError(err);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/*
|
/*
|
* Seek to the end of file if we are writing.
|
* Seek to the end of file if we are writing.
|
*/
|
*/
|
|
|
if (mode & O_WRONLY) {
|
if (mode & O_WRONLY) {
|
SetFilePointer(handle, 0, NULL, FILE_END);
|
SetFilePointer(handle, 0, NULL, FILE_END);
|
}
|
}
|
|
|
return MakeFile(handle);
|
return MakeFile(handle);
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* TclpCreatePipe --
|
* TclpCreatePipe --
|
*
|
*
|
* Creates an anonymous pipe. Under Win32s, creates a temp file
|
* Creates an anonymous pipe. Under Win32s, creates a temp file
|
* that is used to simulate a pipe.
|
* that is used to simulate a pipe.
|
*
|
*
|
* Results:
|
* Results:
|
* Returns 1 on success, 0 on failure.
|
* Returns 1 on success, 0 on failure.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* Creates a pipe.
|
* Creates a pipe.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
int
|
int
|
TclpCreatePipe(readPipe, writePipe)
|
TclpCreatePipe(readPipe, writePipe)
|
TclFile *readPipe; /* Location to store file handle for
|
TclFile *readPipe; /* Location to store file handle for
|
* read side of pipe. */
|
* read side of pipe. */
|
TclFile *writePipe; /* Location to store file handle for
|
TclFile *writePipe; /* Location to store file handle for
|
* write side of pipe. */
|
* write side of pipe. */
|
{
|
{
|
HANDLE readHandle, writeHandle;
|
HANDLE readHandle, writeHandle;
|
|
|
if (CreatePipe(&readHandle, &writeHandle, NULL, 0) != 0) {
|
if (CreatePipe(&readHandle, &writeHandle, NULL, 0) != 0) {
|
*readPipe = MakeFile(readHandle);
|
*readPipe = MakeFile(readHandle);
|
*writePipe = MakeFile(writeHandle);
|
*writePipe = MakeFile(writeHandle);
|
return 1;
|
return 1;
|
}
|
}
|
|
|
if (TclWinGetPlatformId() == VER_PLATFORM_WIN32s) {
|
if (TclWinGetPlatformId() == VER_PLATFORM_WIN32s) {
|
WinPipe *readPipePtr, *writePipePtr;
|
WinPipe *readPipePtr, *writePipePtr;
|
char buf[MAX_PATH];
|
char buf[MAX_PATH];
|
|
|
if (TempFileName(buf) != 0) {
|
if (TempFileName(buf) != 0) {
|
readPipePtr = (WinPipe *) ckalloc(sizeof(WinPipe));
|
readPipePtr = (WinPipe *) ckalloc(sizeof(WinPipe));
|
writePipePtr = (WinPipe *) ckalloc(sizeof(WinPipe));
|
writePipePtr = (WinPipe *) ckalloc(sizeof(WinPipe));
|
|
|
readPipePtr->file.type = WIN32S_PIPE;
|
readPipePtr->file.type = WIN32S_PIPE;
|
readPipePtr->otherPtr = writePipePtr;
|
readPipePtr->otherPtr = writePipePtr;
|
readPipePtr->fileName = strcpy(ckalloc(strlen(buf) + 1), buf);
|
readPipePtr->fileName = strcpy(ckalloc(strlen(buf) + 1), buf);
|
readPipePtr->file.handle = INVALID_HANDLE_VALUE;
|
readPipePtr->file.handle = INVALID_HANDLE_VALUE;
|
writePipePtr->file.type = WIN32S_PIPE;
|
writePipePtr->file.type = WIN32S_PIPE;
|
writePipePtr->otherPtr = readPipePtr;
|
writePipePtr->otherPtr = readPipePtr;
|
writePipePtr->fileName = readPipePtr->fileName;
|
writePipePtr->fileName = readPipePtr->fileName;
|
writePipePtr->file.handle = INVALID_HANDLE_VALUE;
|
writePipePtr->file.handle = INVALID_HANDLE_VALUE;
|
|
|
*readPipe = (TclFile)readPipePtr;
|
*readPipe = (TclFile)readPipePtr;
|
*writePipe = (TclFile)writePipePtr;
|
*writePipe = (TclFile)writePipePtr;
|
|
|
return 1;
|
return 1;
|
}
|
}
|
}
|
}
|
|
|
TclWinConvertError(GetLastError());
|
TclWinConvertError(GetLastError());
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* TclpCloseFile --
|
* TclpCloseFile --
|
*
|
*
|
* Closes a pipeline file handle. These handles are created by
|
* Closes a pipeline file handle. These handles are created by
|
* TclpOpenFile, TclpCreatePipe, or TclpMakeFile.
|
* TclpOpenFile, TclpCreatePipe, or TclpMakeFile.
|
*
|
*
|
* Results:
|
* Results:
|
* 0 on success, -1 on failure.
|
* 0 on success, -1 on failure.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* The file is closed and deallocated.
|
* The file is closed and deallocated.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
int
|
int
|
TclpCloseFile(file)
|
TclpCloseFile(file)
|
TclFile file; /* The file to close. */
|
TclFile file; /* The file to close. */
|
{
|
{
|
WinFile *filePtr = (WinFile *) file;
|
WinFile *filePtr = (WinFile *) file;
|
WinPipe *pipePtr;
|
WinPipe *pipePtr;
|
|
|
switch (filePtr->type) {
|
switch (filePtr->type) {
|
case WIN_FILE:
|
case WIN_FILE:
|
case WIN32S_TMPFILE:
|
case WIN32S_TMPFILE:
|
if (CloseHandle(filePtr->handle) == FALSE) {
|
if (CloseHandle(filePtr->handle) == FALSE) {
|
TclWinConvertError(GetLastError());
|
TclWinConvertError(GetLastError());
|
ckfree((char *) filePtr);
|
ckfree((char *) filePtr);
|
return -1;
|
return -1;
|
}
|
}
|
/*
|
/*
|
* Simulate deleting the file on close for Win32s.
|
* Simulate deleting the file on close for Win32s.
|
*/
|
*/
|
|
|
if (filePtr->type == WIN32S_TMPFILE) {
|
if (filePtr->type == WIN32S_TMPFILE) {
|
DeleteFile(((TmpFile*)filePtr)->name);
|
DeleteFile(((TmpFile*)filePtr)->name);
|
}
|
}
|
break;
|
break;
|
|
|
case WIN32S_PIPE:
|
case WIN32S_PIPE:
|
pipePtr = (WinPipe *) file;
|
pipePtr = (WinPipe *) file;
|
|
|
if (pipePtr->otherPtr != NULL) {
|
if (pipePtr->otherPtr != NULL) {
|
pipePtr->otherPtr->otherPtr = NULL;
|
pipePtr->otherPtr->otherPtr = NULL;
|
} else {
|
} else {
|
if (pipePtr->file.handle != INVALID_HANDLE_VALUE) {
|
if (pipePtr->file.handle != INVALID_HANDLE_VALUE) {
|
CloseHandle(pipePtr->file.handle);
|
CloseHandle(pipePtr->file.handle);
|
}
|
}
|
DeleteFile(pipePtr->fileName);
|
DeleteFile(pipePtr->fileName);
|
ckfree((char *) pipePtr->fileName);
|
ckfree((char *) pipePtr->fileName);
|
}
|
}
|
break;
|
break;
|
|
|
default:
|
default:
|
panic("Tcl_CloseFile: unexpected file type");
|
panic("Tcl_CloseFile: unexpected file type");
|
}
|
}
|
|
|
ckfree((char *) filePtr);
|
ckfree((char *) filePtr);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/*
|
/*
|
*--------------------------------------------------------------------------
|
*--------------------------------------------------------------------------
|
*
|
*
|
* TclpGetPid --
|
* TclpGetPid --
|
*
|
*
|
* Given a HANDLE to a child process, return the process id for that
|
* Given a HANDLE to a child process, return the process id for that
|
* child process.
|
* child process.
|
*
|
*
|
* Results:
|
* Results:
|
* Returns the process id for the child process. If the pid was not
|
* Returns the process id for the child process. If the pid was not
|
* known by Tcl, either because the pid was not created by Tcl or the
|
* known by Tcl, either because the pid was not created by Tcl or the
|
* child process has already been reaped, -1 is returned.
|
* child process has already been reaped, -1 is returned.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* None.
|
* None.
|
*
|
*
|
*--------------------------------------------------------------------------
|
*--------------------------------------------------------------------------
|
*/
|
*/
|
|
|
unsigned long
|
unsigned long
|
TclpGetPid(pid)
|
TclpGetPid(pid)
|
Tcl_Pid pid; /* The HANDLE of the child process. */
|
Tcl_Pid pid; /* The HANDLE of the child process. */
|
{
|
{
|
ProcInfo *infoPtr;
|
ProcInfo *infoPtr;
|
|
|
for (infoPtr = procList; infoPtr != NULL; infoPtr = infoPtr->nextPtr) {
|
for (infoPtr = procList; infoPtr != NULL; infoPtr = infoPtr->nextPtr) {
|
if (infoPtr->hProcess == (HANDLE) pid) {
|
if (infoPtr->hProcess == (HANDLE) pid) {
|
return infoPtr->dwProcessId;
|
return infoPtr->dwProcessId;
|
}
|
}
|
}
|
}
|
return (unsigned long) -1;
|
return (unsigned long) -1;
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* TclpCreateProcess --
|
* TclpCreateProcess --
|
*
|
*
|
* Create a child process that has the specified files as its
|
* Create a child process that has the specified files as its
|
* standard input, output, and error. The child process runs
|
* standard input, output, and error. The child process runs
|
* synchronously under Win32s and asynchronously under Windows NT
|
* synchronously under Win32s and asynchronously under Windows NT
|
* and Windows 95, and runs with the same environment variables
|
* and Windows 95, and runs with the same environment variables
|
* as the creating process.
|
* as the creating process.
|
*
|
*
|
* The complete Windows search path is searched to find the specified
|
* The complete Windows search path is searched to find the specified
|
* executable. If an executable by the given name is not found,
|
* executable. If an executable by the given name is not found,
|
* automatically tries appending ".com", ".exe", and ".bat" to the
|
* automatically tries appending ".com", ".exe", and ".bat" to the
|
* executable name.
|
* executable name.
|
*
|
*
|
* Results:
|
* Results:
|
* The return value is TCL_ERROR and an error message is left in
|
* The return value is TCL_ERROR and an error message is left in
|
* interp->result if there was a problem creating the child
|
* interp->result if there was a problem creating the child
|
* process. Otherwise, the return value is TCL_OK and *pidPtr is
|
* process. Otherwise, the return value is TCL_OK and *pidPtr is
|
* filled with the process id of the child process.
|
* filled with the process id of the child process.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* A process is created.
|
* A process is created.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
int
|
int
|
TclpCreateProcess(interp, argc, argv, inputFile, outputFile, errorFile,
|
TclpCreateProcess(interp, argc, argv, inputFile, outputFile, errorFile,
|
pidPtr)
|
pidPtr)
|
Tcl_Interp *interp; /* Interpreter in which to leave errors that
|
Tcl_Interp *interp; /* Interpreter in which to leave errors that
|
* occurred when creating the child process.
|
* occurred when creating the child process.
|
* Error messages from the child process
|
* Error messages from the child process
|
* itself are sent to errorFile. */
|
* itself are sent to errorFile. */
|
int argc; /* Number of arguments in following array. */
|
int argc; /* Number of arguments in following array. */
|
char **argv; /* Array of argument strings. argv[0]
|
char **argv; /* Array of argument strings. argv[0]
|
* contains the name of the executable
|
* contains the name of the executable
|
* converted to native format (using the
|
* converted to native format (using the
|
* Tcl_TranslateFileName call). Additional
|
* Tcl_TranslateFileName call). Additional
|
* arguments have not been converted. */
|
* arguments have not been converted. */
|
TclFile inputFile; /* If non-NULL, gives the file to use as
|
TclFile inputFile; /* If non-NULL, gives the file to use as
|
* input for the child process. If inputFile
|
* input for the child process. If inputFile
|
* file is not readable or is NULL, the child
|
* file is not readable or is NULL, the child
|
* will receive no standard input. */
|
* will receive no standard input. */
|
TclFile outputFile; /* If non-NULL, gives the file that
|
TclFile outputFile; /* If non-NULL, gives the file that
|
* receives output from the child process. If
|
* receives output from the child process. If
|
* outputFile file is not writeable or is
|
* outputFile file is not writeable or is
|
* NULL, output from the child will be
|
* NULL, output from the child will be
|
* discarded. */
|
* discarded. */
|
TclFile errorFile; /* If non-NULL, gives the file that
|
TclFile errorFile; /* If non-NULL, gives the file that
|
* receives errors from the child process. If
|
* receives errors from the child process. If
|
* errorFile file is not writeable or is NULL,
|
* errorFile file is not writeable or is NULL,
|
* errors from the child will be discarded.
|
* errors from the child will be discarded.
|
* errorFile may be the same as outputFile. */
|
* errorFile may be the same as outputFile. */
|
Tcl_Pid *pidPtr; /* If this procedure is successful, pidPtr
|
Tcl_Pid *pidPtr; /* If this procedure is successful, pidPtr
|
* is filled with the process id of the child
|
* is filled with the process id of the child
|
* process. */
|
* process. */
|
{
|
{
|
int result, applType, createFlags;
|
int result, applType, createFlags;
|
Tcl_DString cmdLine;
|
Tcl_DString cmdLine;
|
STARTUPINFO startInfo;
|
STARTUPINFO startInfo;
|
PROCESS_INFORMATION procInfo;
|
PROCESS_INFORMATION procInfo;
|
SECURITY_ATTRIBUTES secAtts;
|
SECURITY_ATTRIBUTES secAtts;
|
HANDLE hProcess, h, inputHandle, outputHandle, errorHandle;
|
HANDLE hProcess, h, inputHandle, outputHandle, errorHandle;
|
char execPath[MAX_PATH];
|
char execPath[MAX_PATH];
|
char *originalName;
|
char *originalName;
|
WinFile *filePtr;
|
WinFile *filePtr;
|
|
|
if (!initialized) {
|
if (!initialized) {
|
PipeInit();
|
PipeInit();
|
}
|
}
|
|
|
applType = ApplicationType(interp, argv[0], execPath);
|
applType = ApplicationType(interp, argv[0], execPath);
|
if (applType == APPL_NONE) {
|
if (applType == APPL_NONE) {
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
originalName = argv[0];
|
originalName = argv[0];
|
argv[0] = execPath;
|
argv[0] = execPath;
|
|
|
result = TCL_ERROR;
|
result = TCL_ERROR;
|
Tcl_DStringInit(&cmdLine);
|
Tcl_DStringInit(&cmdLine);
|
|
|
if (TclWinGetPlatformId() == VER_PLATFORM_WIN32s) {
|
if (TclWinGetPlatformId() == VER_PLATFORM_WIN32s) {
|
/*
|
/*
|
* Under Win32s, there are no pipes. In order to simulate pipe
|
* Under Win32s, there are no pipes. In order to simulate pipe
|
* behavior, the child processes are run synchronously and their
|
* behavior, the child processes are run synchronously and their
|
* I/O is redirected from/to temporary files before the next
|
* I/O is redirected from/to temporary files before the next
|
* stage of the pipeline is started.
|
* stage of the pipeline is started.
|
*/
|
*/
|
|
|
MSG msg;
|
MSG msg;
|
DWORD status;
|
DWORD status;
|
DWORD args[4];
|
DWORD args[4];
|
void *trans[5];
|
void *trans[5];
|
char *inputFileName, *outputFileName;
|
char *inputFileName, *outputFileName;
|
Tcl_DString inputTempFile, outputTempFile;
|
Tcl_DString inputTempFile, outputTempFile;
|
|
|
BuildCommandLine(argc, argv, &cmdLine);
|
BuildCommandLine(argc, argv, &cmdLine);
|
|
|
ZeroMemory(&startInfo, sizeof(startInfo));
|
ZeroMemory(&startInfo, sizeof(startInfo));
|
startInfo.cb = sizeof(startInfo);
|
startInfo.cb = sizeof(startInfo);
|
|
|
Tcl_DStringInit(&inputTempFile);
|
Tcl_DStringInit(&inputTempFile);
|
Tcl_DStringInit(&outputTempFile);
|
Tcl_DStringInit(&outputTempFile);
|
outputHandle = INVALID_HANDLE_VALUE;
|
outputHandle = INVALID_HANDLE_VALUE;
|
|
|
inputFileName = NULL;
|
inputFileName = NULL;
|
outputFileName = NULL;
|
outputFileName = NULL;
|
if (inputFile != NULL) {
|
if (inputFile != NULL) {
|
filePtr = (WinFile *) inputFile;
|
filePtr = (WinFile *) inputFile;
|
switch (filePtr->type) {
|
switch (filePtr->type) {
|
case WIN_FILE:
|
case WIN_FILE:
|
case WIN32S_TMPFILE: {
|
case WIN32S_TMPFILE: {
|
h = INVALID_HANDLE_VALUE;
|
h = INVALID_HANDLE_VALUE;
|
inputFileName = MakeTempFile(&inputTempFile);
|
inputFileName = MakeTempFile(&inputTempFile);
|
if (inputFileName != NULL) {
|
if (inputFileName != NULL) {
|
h = CreateFile(inputFileName, GENERIC_WRITE, 0,
|
h = CreateFile(inputFileName, GENERIC_WRITE, 0,
|
NULL, CREATE_ALWAYS, 0, NULL);
|
NULL, CREATE_ALWAYS, 0, NULL);
|
}
|
}
|
if (h == INVALID_HANDLE_VALUE) {
|
if (h == INVALID_HANDLE_VALUE) {
|
Tcl_AppendResult(interp, "couldn't duplicate input handle: ",
|
Tcl_AppendResult(interp, "couldn't duplicate input handle: ",
|
Tcl_PosixError(interp), (char *) NULL);
|
Tcl_PosixError(interp), (char *) NULL);
|
goto end32s;
|
goto end32s;
|
}
|
}
|
CopyChannel(h, filePtr->handle);
|
CopyChannel(h, filePtr->handle);
|
CloseHandle(h);
|
CloseHandle(h);
|
break;
|
break;
|
}
|
}
|
case WIN32S_PIPE: {
|
case WIN32S_PIPE: {
|
inputFileName = ((WinPipe*)inputFile)->fileName;
|
inputFileName = ((WinPipe*)inputFile)->fileName;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
}
|
}
|
if (inputFileName == NULL) {
|
if (inputFileName == NULL) {
|
inputFileName = "nul";
|
inputFileName = "nul";
|
}
|
}
|
if (outputFile != NULL) {
|
if (outputFile != NULL) {
|
filePtr = (WinFile *)outputFile;
|
filePtr = (WinFile *)outputFile;
|
if (filePtr->type == WIN_FILE) {
|
if (filePtr->type == WIN_FILE) {
|
outputFileName = MakeTempFile(&outputTempFile);
|
outputFileName = MakeTempFile(&outputTempFile);
|
if (outputFileName == NULL) {
|
if (outputFileName == NULL) {
|
Tcl_AppendResult(interp, "couldn't duplicate output handle: ",
|
Tcl_AppendResult(interp, "couldn't duplicate output handle: ",
|
Tcl_PosixError(interp), (char *) NULL);
|
Tcl_PosixError(interp), (char *) NULL);
|
goto end32s;
|
goto end32s;
|
}
|
}
|
outputHandle = filePtr->handle;
|
outputHandle = filePtr->handle;
|
} else if (filePtr->type == WIN32S_PIPE) {
|
} else if (filePtr->type == WIN32S_PIPE) {
|
outputFileName = ((WinPipe*)outputFile)->fileName;
|
outputFileName = ((WinPipe*)outputFile)->fileName;
|
}
|
}
|
}
|
}
|
if (outputFileName == NULL) {
|
if (outputFileName == NULL) {
|
outputFileName = "nul";
|
outputFileName = "nul";
|
}
|
}
|
|
|
if (applType == APPL_DOS) {
|
if (applType == APPL_DOS) {
|
args[0] = (DWORD) Tcl_DStringValue(&cmdLine);
|
args[0] = (DWORD) Tcl_DStringValue(&cmdLine);
|
args[1] = (DWORD) inputFileName;
|
args[1] = (DWORD) inputFileName;
|
args[2] = (DWORD) outputFileName;
|
args[2] = (DWORD) outputFileName;
|
trans[0] = &args[0];
|
trans[0] = &args[0];
|
trans[1] = &args[1];
|
trans[1] = &args[1];
|
trans[2] = &args[2];
|
trans[2] = &args[2];
|
trans[3] = NULL;
|
trans[3] = NULL;
|
if (TclWinSynchSpawn(args, 0, trans, pidPtr) != 0) {
|
if (TclWinSynchSpawn(args, 0, trans, pidPtr) != 0) {
|
result = TCL_OK;
|
result = TCL_OK;
|
}
|
}
|
} else if (applType == APPL_WIN3X) {
|
} else if (applType == APPL_WIN3X) {
|
args[0] = (DWORD) Tcl_DStringValue(&cmdLine);
|
args[0] = (DWORD) Tcl_DStringValue(&cmdLine);
|
trans[0] = &args[0];
|
trans[0] = &args[0];
|
trans[1] = NULL;
|
trans[1] = NULL;
|
if (TclWinSynchSpawn(args, 1, trans, pidPtr) != 0) {
|
if (TclWinSynchSpawn(args, 1, trans, pidPtr) != 0) {
|
result = TCL_OK;
|
result = TCL_OK;
|
}
|
}
|
} else {
|
} else {
|
if (CreateProcess(NULL, Tcl_DStringValue(&cmdLine), NULL, NULL,
|
if (CreateProcess(NULL, Tcl_DStringValue(&cmdLine), NULL, NULL,
|
FALSE, DETACHED_PROCESS, NULL, NULL, &startInfo,
|
FALSE, DETACHED_PROCESS, NULL, NULL, &startInfo,
|
&procInfo) != 0) {
|
&procInfo) != 0) {
|
CloseHandle(procInfo.hThread);
|
CloseHandle(procInfo.hThread);
|
while (1) {
|
while (1) {
|
if (GetExitCodeProcess(procInfo.hProcess, &status) == FALSE) {
|
if (GetExitCodeProcess(procInfo.hProcess, &status) == FALSE) {
|
break;
|
break;
|
}
|
}
|
if (status != STILL_ACTIVE) {
|
if (status != STILL_ACTIVE) {
|
break;
|
break;
|
}
|
}
|
if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE) == TRUE) {
|
if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE) == TRUE) {
|
TranslateMessage(&msg);
|
TranslateMessage(&msg);
|
DispatchMessage(&msg);
|
DispatchMessage(&msg);
|
}
|
}
|
}
|
}
|
*pidPtr = (Tcl_Pid) procInfo.hProcess;
|
*pidPtr = (Tcl_Pid) procInfo.hProcess;
|
if (*pidPtr != 0) {
|
if (*pidPtr != 0) {
|
ProcInfo *procPtr = (ProcInfo *) ckalloc(sizeof(ProcInfo));
|
ProcInfo *procPtr = (ProcInfo *) ckalloc(sizeof(ProcInfo));
|
procPtr->hProcess = procInfo.hProcess;
|
procPtr->hProcess = procInfo.hProcess;
|
procPtr->dwProcessId = procInfo.dwProcessId;
|
procPtr->dwProcessId = procInfo.dwProcessId;
|
procPtr->nextPtr = procList;
|
procPtr->nextPtr = procList;
|
procList = procPtr;
|
procList = procPtr;
|
}
|
}
|
result = TCL_OK;
|
result = TCL_OK;
|
}
|
}
|
}
|
}
|
if (result != TCL_OK) {
|
if (result != TCL_OK) {
|
TclWinConvertError(GetLastError());
|
TclWinConvertError(GetLastError());
|
Tcl_AppendResult(interp, "couldn't execute \"", originalName,
|
Tcl_AppendResult(interp, "couldn't execute \"", originalName,
|
"\": ", Tcl_PosixError(interp), (char *) NULL);
|
"\": ", Tcl_PosixError(interp), (char *) NULL);
|
}
|
}
|
|
|
end32s:
|
end32s:
|
if (outputHandle != INVALID_HANDLE_VALUE) {
|
if (outputHandle != INVALID_HANDLE_VALUE) {
|
/*
|
/*
|
* Now copy stuff from temp file to actual output handle. Don't
|
* Now copy stuff from temp file to actual output handle. Don't
|
* close outputHandle because it is associated with the output
|
* close outputHandle because it is associated with the output
|
* file owned by the caller.
|
* file owned by the caller.
|
*/
|
*/
|
|
|
h = CreateFile(outputFileName, GENERIC_READ, 0, NULL, OPEN_ALWAYS,
|
h = CreateFile(outputFileName, GENERIC_READ, 0, NULL, OPEN_ALWAYS,
|
0, NULL);
|
0, NULL);
|
if (h != INVALID_HANDLE_VALUE) {
|
if (h != INVALID_HANDLE_VALUE) {
|
CopyChannel(outputHandle, h);
|
CopyChannel(outputHandle, h);
|
}
|
}
|
CloseHandle(h);
|
CloseHandle(h);
|
}
|
}
|
|
|
if (inputFileName == Tcl_DStringValue(&inputTempFile)) {
|
if (inputFileName == Tcl_DStringValue(&inputTempFile)) {
|
DeleteFile(inputFileName);
|
DeleteFile(inputFileName);
|
}
|
}
|
|
|
if (outputFileName == Tcl_DStringValue(&outputTempFile)) {
|
if (outputFileName == Tcl_DStringValue(&outputTempFile)) {
|
DeleteFile(outputFileName);
|
DeleteFile(outputFileName);
|
}
|
}
|
|
|
Tcl_DStringFree(&inputTempFile);
|
Tcl_DStringFree(&inputTempFile);
|
Tcl_DStringFree(&outputTempFile);
|
Tcl_DStringFree(&outputTempFile);
|
Tcl_DStringFree(&cmdLine);
|
Tcl_DStringFree(&cmdLine);
|
return result;
|
return result;
|
}
|
}
|
hProcess = GetCurrentProcess();
|
hProcess = GetCurrentProcess();
|
|
|
/*
|
/*
|
* STARTF_USESTDHANDLES must be used to pass handles to child process.
|
* STARTF_USESTDHANDLES must be used to pass handles to child process.
|
* Using SetStdHandle() and/or dup2() only works when a console mode
|
* Using SetStdHandle() and/or dup2() only works when a console mode
|
* parent process is spawning an attached console mode child process.
|
* parent process is spawning an attached console mode child process.
|
*/
|
*/
|
|
|
ZeroMemory(&startInfo, sizeof(startInfo));
|
ZeroMemory(&startInfo, sizeof(startInfo));
|
startInfo.cb = sizeof(startInfo);
|
startInfo.cb = sizeof(startInfo);
|
startInfo.dwFlags = STARTF_USESTDHANDLES;
|
startInfo.dwFlags = STARTF_USESTDHANDLES;
|
startInfo.hStdInput = INVALID_HANDLE_VALUE;
|
startInfo.hStdInput = INVALID_HANDLE_VALUE;
|
startInfo.hStdOutput= INVALID_HANDLE_VALUE;
|
startInfo.hStdOutput= INVALID_HANDLE_VALUE;
|
startInfo.hStdError = INVALID_HANDLE_VALUE;
|
startInfo.hStdError = INVALID_HANDLE_VALUE;
|
|
|
secAtts.nLength = sizeof(SECURITY_ATTRIBUTES);
|
secAtts.nLength = sizeof(SECURITY_ATTRIBUTES);
|
secAtts.lpSecurityDescriptor = NULL;
|
secAtts.lpSecurityDescriptor = NULL;
|
secAtts.bInheritHandle = TRUE;
|
secAtts.bInheritHandle = TRUE;
|
|
|
/*
|
/*
|
* We have to check the type of each file, since we cannot duplicate
|
* We have to check the type of each file, since we cannot duplicate
|
* some file types.
|
* some file types.
|
*/
|
*/
|
|
|
inputHandle = INVALID_HANDLE_VALUE;
|
inputHandle = INVALID_HANDLE_VALUE;
|
if (inputFile != NULL) {
|
if (inputFile != NULL) {
|
filePtr = (WinFile *)inputFile;
|
filePtr = (WinFile *)inputFile;
|
if (filePtr->type == WIN_FILE) {
|
if (filePtr->type == WIN_FILE) {
|
inputHandle = filePtr->handle;
|
inputHandle = filePtr->handle;
|
}
|
}
|
}
|
}
|
outputHandle = INVALID_HANDLE_VALUE;
|
outputHandle = INVALID_HANDLE_VALUE;
|
if (outputFile != NULL) {
|
if (outputFile != NULL) {
|
filePtr = (WinFile *)outputFile;
|
filePtr = (WinFile *)outputFile;
|
if (filePtr->type == WIN_FILE) {
|
if (filePtr->type == WIN_FILE) {
|
outputHandle = filePtr->handle;
|
outputHandle = filePtr->handle;
|
}
|
}
|
}
|
}
|
errorHandle = INVALID_HANDLE_VALUE;
|
errorHandle = INVALID_HANDLE_VALUE;
|
if (errorFile != NULL) {
|
if (errorFile != NULL) {
|
filePtr = (WinFile *)errorFile;
|
filePtr = (WinFile *)errorFile;
|
if (filePtr->type == WIN_FILE) {
|
if (filePtr->type == WIN_FILE) {
|
errorHandle = filePtr->handle;
|
errorHandle = filePtr->handle;
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
* Duplicate all the handles which will be passed off as stdin, stdout
|
* Duplicate all the handles which will be passed off as stdin, stdout
|
* and stderr of the child process. The duplicate handles are set to
|
* and stderr of the child process. The duplicate handles are set to
|
* be inheritable, so the child process can use them.
|
* be inheritable, so the child process can use them.
|
*/
|
*/
|
|
|
if (inputHandle == INVALID_HANDLE_VALUE) {
|
if (inputHandle == INVALID_HANDLE_VALUE) {
|
/*
|
/*
|
* If handle was not set, stdin should return immediate EOF.
|
* If handle was not set, stdin should return immediate EOF.
|
* Under Windows95, some applications (both 16 and 32 bit!)
|
* Under Windows95, some applications (both 16 and 32 bit!)
|
* cannot read from the NUL device; they read from console
|
* cannot read from the NUL device; they read from console
|
* instead. When running tk, this is fatal because the child
|
* instead. When running tk, this is fatal because the child
|
* process would hang forever waiting for EOF from the unmapped
|
* process would hang forever waiting for EOF from the unmapped
|
* console window used by the helper application.
|
* console window used by the helper application.
|
*
|
*
|
* Fortunately, the helper application detects a closed pipe
|
* Fortunately, the helper application detects a closed pipe
|
* as an immediate EOF and can pass that information to the
|
* as an immediate EOF and can pass that information to the
|
* child process.
|
* child process.
|
*/
|
*/
|
|
|
if (CreatePipe(&startInfo.hStdInput, &h, &secAtts, 0) != FALSE) {
|
if (CreatePipe(&startInfo.hStdInput, &h, &secAtts, 0) != FALSE) {
|
CloseHandle(h);
|
CloseHandle(h);
|
}
|
}
|
} else {
|
} else {
|
DuplicateHandle(hProcess, inputHandle, hProcess, &startInfo.hStdInput,
|
DuplicateHandle(hProcess, inputHandle, hProcess, &startInfo.hStdInput,
|
0, TRUE, DUPLICATE_SAME_ACCESS);
|
0, TRUE, DUPLICATE_SAME_ACCESS);
|
}
|
}
|
if (startInfo.hStdInput == INVALID_HANDLE_VALUE) {
|
if (startInfo.hStdInput == INVALID_HANDLE_VALUE) {
|
TclWinConvertError(GetLastError());
|
TclWinConvertError(GetLastError());
|
Tcl_AppendResult(interp, "couldn't duplicate input handle: ",
|
Tcl_AppendResult(interp, "couldn't duplicate input handle: ",
|
Tcl_PosixError(interp), (char *) NULL);
|
Tcl_PosixError(interp), (char *) NULL);
|
goto end;
|
goto end;
|
}
|
}
|
|
|
if (outputHandle == INVALID_HANDLE_VALUE) {
|
if (outputHandle == INVALID_HANDLE_VALUE) {
|
/*
|
/*
|
* If handle was not set, output should be sent to an infinitely
|
* If handle was not set, output should be sent to an infinitely
|
* deep sink. Under Windows 95, some 16 bit applications cannot
|
* deep sink. Under Windows 95, some 16 bit applications cannot
|
* have stdout redirected to NUL; they send their output to
|
* have stdout redirected to NUL; they send their output to
|
* the console instead. Some applications, like "more" or "dir /p",
|
* the console instead. Some applications, like "more" or "dir /p",
|
* when outputting multiple pages to the console, also then try and
|
* when outputting multiple pages to the console, also then try and
|
* read from the console to go the next page. When running tk, this
|
* read from the console to go the next page. When running tk, this
|
* is fatal because the child process would hang forever waiting
|
* is fatal because the child process would hang forever waiting
|
* for input from the unmapped console window used by the helper
|
* for input from the unmapped console window used by the helper
|
* application.
|
* application.
|
*
|
*
|
* Fortunately, the helper application will detect a closed pipe
|
* Fortunately, the helper application will detect a closed pipe
|
* as a sink.
|
* as a sink.
|
*/
|
*/
|
|
|
if ((TclWinGetPlatformId() == VER_PLATFORM_WIN32_WINDOWS)
|
if ((TclWinGetPlatformId() == VER_PLATFORM_WIN32_WINDOWS)
|
&& (applType == APPL_DOS)) {
|
&& (applType == APPL_DOS)) {
|
if (CreatePipe(&h, &startInfo.hStdOutput, &secAtts, 0) != FALSE) {
|
if (CreatePipe(&h, &startInfo.hStdOutput, &secAtts, 0) != FALSE) {
|
CloseHandle(h);
|
CloseHandle(h);
|
}
|
}
|
} else {
|
} else {
|
startInfo.hStdOutput = CreateFile("NUL:", GENERIC_WRITE, 0,
|
startInfo.hStdOutput = CreateFile("NUL:", GENERIC_WRITE, 0,
|
&secAtts, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
|
&secAtts, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
|
}
|
}
|
} else {
|
} else {
|
DuplicateHandle(hProcess, outputHandle, hProcess, &startInfo.hStdOutput,
|
DuplicateHandle(hProcess, outputHandle, hProcess, &startInfo.hStdOutput,
|
0, TRUE, DUPLICATE_SAME_ACCESS);
|
0, TRUE, DUPLICATE_SAME_ACCESS);
|
}
|
}
|
if (startInfo.hStdOutput == INVALID_HANDLE_VALUE) {
|
if (startInfo.hStdOutput == INVALID_HANDLE_VALUE) {
|
TclWinConvertError(GetLastError());
|
TclWinConvertError(GetLastError());
|
Tcl_AppendResult(interp, "couldn't duplicate output handle: ",
|
Tcl_AppendResult(interp, "couldn't duplicate output handle: ",
|
Tcl_PosixError(interp), (char *) NULL);
|
Tcl_PosixError(interp), (char *) NULL);
|
goto end;
|
goto end;
|
}
|
}
|
|
|
if (errorHandle == INVALID_HANDLE_VALUE) {
|
if (errorHandle == INVALID_HANDLE_VALUE) {
|
/*
|
/*
|
* If handle was not set, errors should be sent to an infinitely
|
* If handle was not set, errors should be sent to an infinitely
|
* deep sink.
|
* deep sink.
|
*/
|
*/
|
|
|
startInfo.hStdError = CreateFile("NUL:", GENERIC_WRITE, 0,
|
startInfo.hStdError = CreateFile("NUL:", GENERIC_WRITE, 0,
|
&secAtts, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
|
&secAtts, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
|
} else {
|
} else {
|
DuplicateHandle(hProcess, errorHandle, hProcess, &startInfo.hStdError,
|
DuplicateHandle(hProcess, errorHandle, hProcess, &startInfo.hStdError,
|
0, TRUE, DUPLICATE_SAME_ACCESS);
|
0, TRUE, DUPLICATE_SAME_ACCESS);
|
}
|
}
|
if (startInfo.hStdError == INVALID_HANDLE_VALUE) {
|
if (startInfo.hStdError == INVALID_HANDLE_VALUE) {
|
TclWinConvertError(GetLastError());
|
TclWinConvertError(GetLastError());
|
Tcl_AppendResult(interp, "couldn't duplicate error handle: ",
|
Tcl_AppendResult(interp, "couldn't duplicate error handle: ",
|
Tcl_PosixError(interp), (char *) NULL);
|
Tcl_PosixError(interp), (char *) NULL);
|
goto end;
|
goto end;
|
}
|
}
|
/*
|
/*
|
* If we do not have a console window, then we must run DOS and
|
* If we do not have a console window, then we must run DOS and
|
* WIN32 console mode applications as detached processes. This tells
|
* WIN32 console mode applications as detached processes. This tells
|
* the loader that the child application should not inherit the
|
* the loader that the child application should not inherit the
|
* console, and that it should not create a new console window for
|
* console, and that it should not create a new console window for
|
* the child application. The child application should get its stdio
|
* the child application. The child application should get its stdio
|
* from the redirection handles provided by this application, and run
|
* from the redirection handles provided by this application, and run
|
* in the background.
|
* in the background.
|
*
|
*
|
* If we are starting a GUI process, they don't automatically get a
|
* If we are starting a GUI process, they don't automatically get a
|
* console, so it doesn't matter if they are started as foreground or
|
* console, so it doesn't matter if they are started as foreground or
|
* detached processes. The GUI window will still pop up to the
|
* detached processes. The GUI window will still pop up to the
|
* foreground.
|
* foreground.
|
*/
|
*/
|
|
|
if (TclWinGetPlatformId() == VER_PLATFORM_WIN32_NT) {
|
if (TclWinGetPlatformId() == VER_PLATFORM_WIN32_NT) {
|
if (HasConsole()) {
|
if (HasConsole()) {
|
createFlags = 0;
|
createFlags = 0;
|
} else if (applType == APPL_DOS) {
|
} else if (applType == APPL_DOS) {
|
/*
|
/*
|
* Under NT, 16-bit DOS applications will not run unless they
|
* Under NT, 16-bit DOS applications will not run unless they
|
* can be attached to a console. If we are running without a
|
* can be attached to a console. If we are running without a
|
* console, run the 16-bit program as an normal process inside
|
* console, run the 16-bit program as an normal process inside
|
* of a hidden console application, and then run that hidden
|
* of a hidden console application, and then run that hidden
|
* console as a detached process.
|
* console as a detached process.
|
*/
|
*/
|
|
|
startInfo.wShowWindow = SW_HIDE;
|
startInfo.wShowWindow = SW_HIDE;
|
startInfo.dwFlags |= STARTF_USESHOWWINDOW;
|
startInfo.dwFlags |= STARTF_USESHOWWINDOW;
|
createFlags = CREATE_NEW_CONSOLE;
|
createFlags = CREATE_NEW_CONSOLE;
|
Tcl_DStringAppend(&cmdLine, "cmd.exe /c ", -1);
|
Tcl_DStringAppend(&cmdLine, "cmd.exe /c ", -1);
|
} else {
|
} else {
|
createFlags = DETACHED_PROCESS;
|
createFlags = DETACHED_PROCESS;
|
}
|
}
|
} else {
|
} else {
|
if (HasConsole()) {
|
if (HasConsole()) {
|
createFlags = 0;
|
createFlags = 0;
|
} else {
|
} else {
|
createFlags = DETACHED_PROCESS;
|
createFlags = DETACHED_PROCESS;
|
}
|
}
|
|
|
if (applType == APPL_DOS) {
|
if (applType == APPL_DOS) {
|
/*
|
/*
|
* Under Windows 95, 16-bit DOS applications do not work well
|
* Under Windows 95, 16-bit DOS applications do not work well
|
* with pipes:
|
* with pipes:
|
*
|
*
|
* 1. EOF on a pipe between a detached 16-bit DOS application
|
* 1. EOF on a pipe between a detached 16-bit DOS application
|
* and another application is not seen at the other
|
* and another application is not seen at the other
|
* end of the pipe, so the listening process blocks forever on
|
* end of the pipe, so the listening process blocks forever on
|
* reads. This inablity to detect EOF happens when either a
|
* reads. This inablity to detect EOF happens when either a
|
* 16-bit app or the 32-bit app is the listener.
|
* 16-bit app or the 32-bit app is the listener.
|
*
|
*
|
* 2. If a 16-bit DOS application (detached or not) blocks when
|
* 2. If a 16-bit DOS application (detached or not) blocks when
|
* writing to a pipe, it will never wake up again, and it
|
* writing to a pipe, it will never wake up again, and it
|
* eventually brings the whole system down around it.
|
* eventually brings the whole system down around it.
|
*
|
*
|
* The 16-bit application is run as a normal process inside
|
* The 16-bit application is run as a normal process inside
|
* of a hidden helper console app, and this helper may be run
|
* of a hidden helper console app, and this helper may be run
|
* as a detached process. If any of the stdio handles is
|
* as a detached process. If any of the stdio handles is
|
* a pipe, the helper application accumulates information
|
* a pipe, the helper application accumulates information
|
* into temp files and forwards it to or from the DOS
|
* into temp files and forwards it to or from the DOS
|
* application as appropriate. This means that DOS apps
|
* application as appropriate. This means that DOS apps
|
* must receive EOF from a stdin pipe before they will actually
|
* must receive EOF from a stdin pipe before they will actually
|
* begin, and must finish generating stdout or stderr before
|
* begin, and must finish generating stdout or stderr before
|
* the data will be sent to the next stage of the pipe.
|
* the data will be sent to the next stage of the pipe.
|
*
|
*
|
* The helper app should be located in the same directory as
|
* The helper app should be located in the same directory as
|
* the tcl dll.
|
* the tcl dll.
|
*/
|
*/
|
|
|
if (createFlags != 0) {
|
if (createFlags != 0) {
|
startInfo.wShowWindow = SW_HIDE;
|
startInfo.wShowWindow = SW_HIDE;
|
startInfo.dwFlags |= STARTF_USESHOWWINDOW;
|
startInfo.dwFlags |= STARTF_USESHOWWINDOW;
|
createFlags = CREATE_NEW_CONSOLE;
|
createFlags = CREATE_NEW_CONSOLE;
|
}
|
}
|
/* CYGNUS LOCAL: We name the DLL cygtclpip. */
|
/* CYGNUS LOCAL: We name the DLL cygtclpip. */
|
Tcl_DStringAppend(&cmdLine, "cygtclpip" STRINGIFY(TCL_MAJOR_VERSION)
|
Tcl_DStringAppend(&cmdLine, "cygtclpip" STRINGIFY(TCL_MAJOR_VERSION)
|
STRINGIFY(TCL_MINOR_VERSION) ".dll ", -1);
|
STRINGIFY(TCL_MINOR_VERSION) ".dll ", -1);
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
* cmdLine gets the full command line used to invoke the executable,
|
* cmdLine gets the full command line used to invoke the executable,
|
* including the name of the executable itself. The command line
|
* including the name of the executable itself. The command line
|
* arguments in argv[] are stored in cmdLine separated by spaces.
|
* arguments in argv[] are stored in cmdLine separated by spaces.
|
* Special characters in individual arguments from argv[] must be
|
* Special characters in individual arguments from argv[] must be
|
* quoted when being stored in cmdLine.
|
* quoted when being stored in cmdLine.
|
*
|
*
|
* When calling any application, bear in mind that arguments that
|
* When calling any application, bear in mind that arguments that
|
* specify a path name are not converted. If an argument contains
|
* specify a path name are not converted. If an argument contains
|
* forward slashes as path separators, it may or may not be
|
* forward slashes as path separators, it may or may not be
|
* recognized as a path name, depending on the program. In general,
|
* recognized as a path name, depending on the program. In general,
|
* most applications accept forward slashes only as option
|
* most applications accept forward slashes only as option
|
* delimiters and backslashes only as paths.
|
* delimiters and backslashes only as paths.
|
*
|
*
|
* Additionally, when calling a 16-bit dos or windows application,
|
* Additionally, when calling a 16-bit dos or windows application,
|
* all path names must use the short, cryptic, path format (e.g.,
|
* all path names must use the short, cryptic, path format (e.g.,
|
* using ab~1.def instead of "a b.default").
|
* using ab~1.def instead of "a b.default").
|
*/
|
*/
|
|
|
BuildCommandLine(argc, argv, &cmdLine);
|
BuildCommandLine(argc, argv, &cmdLine);
|
|
|
if (!CreateProcess(NULL, Tcl_DStringValue(&cmdLine), NULL, NULL, TRUE,
|
if (!CreateProcess(NULL, Tcl_DStringValue(&cmdLine), NULL, NULL, TRUE,
|
createFlags, NULL, NULL, &startInfo, &procInfo)) {
|
createFlags, NULL, NULL, &startInfo, &procInfo)) {
|
TclWinConvertError(GetLastError());
|
TclWinConvertError(GetLastError());
|
Tcl_AppendResult(interp, "couldn't execute \"", originalName,
|
Tcl_AppendResult(interp, "couldn't execute \"", originalName,
|
"\": ", Tcl_PosixError(interp), (char *) NULL);
|
"\": ", Tcl_PosixError(interp), (char *) NULL);
|
goto end;
|
goto end;
|
}
|
}
|
|
|
if (applType == APPL_DOS) {
|
if (applType == APPL_DOS) {
|
WaitForSingleObject(hProcess, 50);
|
WaitForSingleObject(hProcess, 50);
|
}
|
}
|
|
|
/*
|
/*
|
* "When an application spawns a process repeatedly, a new thread
|
* "When an application spawns a process repeatedly, a new thread
|
* instance will be created for each process but the previous
|
* instance will be created for each process but the previous
|
* instances may not be cleaned up. This results in a significant
|
* instances may not be cleaned up. This results in a significant
|
* virtual memory loss each time the process is spawned. If there
|
* virtual memory loss each time the process is spawned. If there
|
* is a WaitForInputIdle() call between CreateProcess() and
|
* is a WaitForInputIdle() call between CreateProcess() and
|
* CloseHandle(), the problem does not occur." PSS ID Number: Q124121
|
* CloseHandle(), the problem does not occur." PSS ID Number: Q124121
|
*/
|
*/
|
|
|
WaitForInputIdle(procInfo.hProcess, 5000);
|
WaitForInputIdle(procInfo.hProcess, 5000);
|
CloseHandle(procInfo.hThread);
|
CloseHandle(procInfo.hThread);
|
|
|
*pidPtr = (Tcl_Pid) procInfo.hProcess;
|
*pidPtr = (Tcl_Pid) procInfo.hProcess;
|
if (*pidPtr != 0) {
|
if (*pidPtr != 0) {
|
ProcInfo *procPtr = (ProcInfo *) ckalloc(sizeof(ProcInfo));
|
ProcInfo *procPtr = (ProcInfo *) ckalloc(sizeof(ProcInfo));
|
procPtr->hProcess = procInfo.hProcess;
|
procPtr->hProcess = procInfo.hProcess;
|
procPtr->dwProcessId = procInfo.dwProcessId;
|
procPtr->dwProcessId = procInfo.dwProcessId;
|
procPtr->nextPtr = procList;
|
procPtr->nextPtr = procList;
|
procList = procPtr;
|
procList = procPtr;
|
}
|
}
|
result = TCL_OK;
|
result = TCL_OK;
|
|
|
end:
|
end:
|
Tcl_DStringFree(&cmdLine);
|
Tcl_DStringFree(&cmdLine);
|
if (startInfo.hStdInput != INVALID_HANDLE_VALUE) {
|
if (startInfo.hStdInput != INVALID_HANDLE_VALUE) {
|
CloseHandle(startInfo.hStdInput);
|
CloseHandle(startInfo.hStdInput);
|
}
|
}
|
if (startInfo.hStdOutput != INVALID_HANDLE_VALUE) {
|
if (startInfo.hStdOutput != INVALID_HANDLE_VALUE) {
|
CloseHandle(startInfo.hStdOutput);
|
CloseHandle(startInfo.hStdOutput);
|
}
|
}
|
if (startInfo.hStdError != INVALID_HANDLE_VALUE) {
|
if (startInfo.hStdError != INVALID_HANDLE_VALUE) {
|
CloseHandle(startInfo.hStdError);
|
CloseHandle(startInfo.hStdError);
|
}
|
}
|
return result;
|
return result;
|
}
|
}
|
|
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* HasConsole --
|
* HasConsole --
|
*
|
*
|
* Determines whether the current application is attached to a
|
* Determines whether the current application is attached to a
|
* console.
|
* console.
|
*
|
*
|
* Results:
|
* Results:
|
* Returns TRUE if this application has a console, else FALSE.
|
* Returns TRUE if this application has a console, else FALSE.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* None.
|
* None.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
static BOOL
|
static BOOL
|
HasConsole()
|
HasConsole()
|
{
|
{
|
HANDLE handle = CreateFile("CONOUT$", GENERIC_WRITE, FILE_SHARE_WRITE,
|
HANDLE handle = CreateFile("CONOUT$", GENERIC_WRITE, FILE_SHARE_WRITE,
|
NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
|
NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
|
|
|
if (handle != INVALID_HANDLE_VALUE) {
|
if (handle != INVALID_HANDLE_VALUE) {
|
CloseHandle(handle);
|
CloseHandle(handle);
|
return TRUE;
|
return TRUE;
|
} else {
|
} else {
|
return FALSE;
|
return FALSE;
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
*--------------------------------------------------------------------
|
*--------------------------------------------------------------------
|
*
|
*
|
* ApplicationType --
|
* ApplicationType --
|
*
|
*
|
* Search for the specified program and identify if it refers to a DOS,
|
* Search for the specified program and identify if it refers to a DOS,
|
* Windows 3.X, or Win32 program. Used to determine how to invoke
|
* Windows 3.X, or Win32 program. Used to determine how to invoke
|
* a program, or if it can even be invoked.
|
* a program, or if it can even be invoked.
|
*
|
*
|
* It is possible to almost positively identify DOS and Windows
|
* It is possible to almost positively identify DOS and Windows
|
* applications that contain the appropriate magic numbers. However,
|
* applications that contain the appropriate magic numbers. However,
|
* DOS .com files do not seem to contain a magic number; if the program
|
* DOS .com files do not seem to contain a magic number; if the program
|
* name ends with .com and could not be identified as a Windows .com
|
* name ends with .com and could not be identified as a Windows .com
|
* file, it will be assumed to be a DOS application, even if it was
|
* file, it will be assumed to be a DOS application, even if it was
|
* just random data. If the program name does not end with .com, no
|
* just random data. If the program name does not end with .com, no
|
* such assumption is made.
|
* such assumption is made.
|
*
|
*
|
* The Win32 procedure GetBinaryType incorrectly identifies any
|
* The Win32 procedure GetBinaryType incorrectly identifies any
|
* junk file that ends with .exe as a dos executable and some
|
* junk file that ends with .exe as a dos executable and some
|
* executables that don't end with .exe as not executable. Plus it
|
* executables that don't end with .exe as not executable. Plus it
|
* doesn't exist under win95, so I won't feel bad about reimplementing
|
* doesn't exist under win95, so I won't feel bad about reimplementing
|
* functionality.
|
* functionality.
|
*
|
*
|
* Results:
|
* Results:
|
* The return value is one of APPL_DOS, APPL_WIN3X, or APPL_WIN32
|
* The return value is one of APPL_DOS, APPL_WIN3X, or APPL_WIN32
|
* if the filename referred to the corresponding application type.
|
* if the filename referred to the corresponding application type.
|
* If the file name could not be found or did not refer to any known
|
* If the file name could not be found or did not refer to any known
|
* application type, APPL_NONE is returned and an error message is
|
* application type, APPL_NONE is returned and an error message is
|
* left in interp. .bat files are identified as APPL_DOS.
|
* left in interp. .bat files are identified as APPL_DOS.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* None.
|
* None.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
static int
|
static int
|
ApplicationType(interp, originalName, fullPath)
|
ApplicationType(interp, originalName, fullPath)
|
Tcl_Interp *interp; /* Interp, for error message. */
|
Tcl_Interp *interp; /* Interp, for error message. */
|
const char *originalName; /* Name of the application to find. */
|
const char *originalName; /* Name of the application to find. */
|
char fullPath[MAX_PATH]; /* Filled with complete path to
|
char fullPath[MAX_PATH]; /* Filled with complete path to
|
* application. */
|
* application. */
|
{
|
{
|
int applType, i;
|
int applType, i;
|
HANDLE hFile;
|
HANDLE hFile;
|
char *ext, *rest;
|
char *ext, *rest;
|
char buf[2];
|
char buf[2];
|
DWORD read;
|
DWORD read;
|
IMAGE_DOS_HEADER header;
|
IMAGE_DOS_HEADER header;
|
static char extensions[][5] = {"", ".com", ".exe", ".bat"};
|
static char extensions[][5] = {"", ".com", ".exe", ".bat"};
|
|
|
/* Look for the program as an external program. First try the name
|
/* Look for the program as an external program. First try the name
|
* as it is, then try adding .com, .exe, and .bat, in that order, to
|
* as it is, then try adding .com, .exe, and .bat, in that order, to
|
* the name, looking for an executable.
|
* the name, looking for an executable.
|
*
|
*
|
* Using the raw SearchPath() procedure doesn't do quite what is
|
* Using the raw SearchPath() procedure doesn't do quite what is
|
* necessary. If the name of the executable already contains a '.'
|
* necessary. If the name of the executable already contains a '.'
|
* character, it will not try appending the specified extension when
|
* character, it will not try appending the specified extension when
|
* searching (in other words, SearchPath will not find the program
|
* searching (in other words, SearchPath will not find the program
|
* "a.b.exe" if the arguments specified "a.b" and ".exe").
|
* "a.b.exe" if the arguments specified "a.b" and ".exe").
|
* So, first look for the file as it is named. Then manually append
|
* So, first look for the file as it is named. Then manually append
|
* the extensions, looking for a match.
|
* the extensions, looking for a match.
|
*/
|
*/
|
|
|
applType = APPL_NONE;
|
applType = APPL_NONE;
|
for (i = 0; i < (int) (sizeof(extensions) / sizeof(extensions[0])); i++) {
|
for (i = 0; i < (int) (sizeof(extensions) / sizeof(extensions[0])); i++) {
|
lstrcpyn(fullPath, originalName, MAX_PATH - 5);
|
lstrcpyn(fullPath, originalName, MAX_PATH - 5);
|
lstrcat(fullPath, extensions[i]);
|
lstrcat(fullPath, extensions[i]);
|
|
|
SearchPath(NULL, fullPath, NULL, MAX_PATH, fullPath, &rest);
|
SearchPath(NULL, fullPath, NULL, MAX_PATH, fullPath, &rest);
|
|
|
/*
|
/*
|
* Ignore matches on directories or data files, return if identified
|
* Ignore matches on directories or data files, return if identified
|
* a known type.
|
* a known type.
|
*/
|
*/
|
|
|
if (GetFileAttributes(fullPath) & FILE_ATTRIBUTE_DIRECTORY) {
|
if (GetFileAttributes(fullPath) & FILE_ATTRIBUTE_DIRECTORY) {
|
continue;
|
continue;
|
}
|
}
|
|
|
ext = strrchr(fullPath, '.');
|
ext = strrchr(fullPath, '.');
|
if ((ext != NULL) && (strcmpi(ext, ".bat") == 0)) {
|
if ((ext != NULL) && (strcmpi(ext, ".bat") == 0)) {
|
applType = APPL_DOS;
|
applType = APPL_DOS;
|
break;
|
break;
|
}
|
}
|
|
|
hFile = CreateFile(fullPath, GENERIC_READ, FILE_SHARE_READ, NULL,
|
hFile = CreateFile(fullPath, GENERIC_READ, FILE_SHARE_READ, NULL,
|
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
|
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
|
if (hFile == INVALID_HANDLE_VALUE) {
|
if (hFile == INVALID_HANDLE_VALUE) {
|
continue;
|
continue;
|
}
|
}
|
|
|
header.e_magic = 0;
|
header.e_magic = 0;
|
ReadFile(hFile, (void *) &header, sizeof(header), &read, NULL);
|
ReadFile(hFile, (void *) &header, sizeof(header), &read, NULL);
|
if (header.e_magic != IMAGE_DOS_SIGNATURE) {
|
if (header.e_magic != IMAGE_DOS_SIGNATURE) {
|
/*
|
/*
|
* Doesn't have the magic number for relocatable executables. If
|
* Doesn't have the magic number for relocatable executables. If
|
* filename ends with .com, assume it's a DOS application anyhow.
|
* filename ends with .com, assume it's a DOS application anyhow.
|
* Note that we didn't make this assumption at first, because some
|
* Note that we didn't make this assumption at first, because some
|
* supposed .com files are really 32-bit executables with all the
|
* supposed .com files are really 32-bit executables with all the
|
* magic numbers and everything.
|
* magic numbers and everything.
|
*/
|
*/
|
|
|
CloseHandle(hFile);
|
CloseHandle(hFile);
|
if ((ext != NULL) && (strcmpi(ext, ".com") == 0)) {
|
if ((ext != NULL) && (strcmpi(ext, ".com") == 0)) {
|
applType = APPL_DOS;
|
applType = APPL_DOS;
|
break;
|
break;
|
}
|
}
|
continue;
|
continue;
|
}
|
}
|
if (header.e_lfarlc != sizeof(header)) {
|
if (header.e_lfarlc != sizeof(header)) {
|
/*
|
/*
|
* All Windows 3.X and Win32 and some DOS programs have this value
|
* All Windows 3.X and Win32 and some DOS programs have this value
|
* set here. If it doesn't, assume that since it already had the
|
* set here. If it doesn't, assume that since it already had the
|
* other magic number it was a DOS application.
|
* other magic number it was a DOS application.
|
*/
|
*/
|
|
|
CloseHandle(hFile);
|
CloseHandle(hFile);
|
applType = APPL_DOS;
|
applType = APPL_DOS;
|
break;
|
break;
|
}
|
}
|
|
|
/*
|
/*
|
* The DWORD at header.e_lfanew points to yet another magic number.
|
* The DWORD at header.e_lfanew points to yet another magic number.
|
*/
|
*/
|
|
|
buf[0] = '\0';
|
buf[0] = '\0';
|
SetFilePointer(hFile, header.e_lfanew, NULL, FILE_BEGIN);
|
SetFilePointer(hFile, header.e_lfanew, NULL, FILE_BEGIN);
|
ReadFile(hFile, (void *) buf, 2, &read, NULL);
|
ReadFile(hFile, (void *) buf, 2, &read, NULL);
|
CloseHandle(hFile);
|
CloseHandle(hFile);
|
|
|
if ((buf[0] == 'N') && (buf[1] == 'E')) {
|
if ((buf[0] == 'N') && (buf[1] == 'E')) {
|
applType = APPL_WIN3X;
|
applType = APPL_WIN3X;
|
} else if ((buf[0] == 'P') && (buf[1] == 'E')) {
|
} else if ((buf[0] == 'P') && (buf[1] == 'E')) {
|
applType = APPL_WIN32;
|
applType = APPL_WIN32;
|
} else {
|
} else {
|
/*
|
/*
|
* Strictly speaking, there should be a test that there
|
* Strictly speaking, there should be a test that there
|
* is an 'L' and 'E' at buf[0..1], to identify the type as
|
* is an 'L' and 'E' at buf[0..1], to identify the type as
|
* DOS, but of course we ran into a DOS executable that
|
* DOS, but of course we ran into a DOS executable that
|
* _doesn't_ have the magic number -- specifically, one
|
* _doesn't_ have the magic number -- specifically, one
|
* compiled using the Lahey Fortran90 compiler.
|
* compiled using the Lahey Fortran90 compiler.
|
*/
|
*/
|
|
|
applType = APPL_DOS;
|
applType = APPL_DOS;
|
}
|
}
|
break;
|
break;
|
}
|
}
|
|
|
if (applType == APPL_NONE) {
|
if (applType == APPL_NONE) {
|
TclWinConvertError(GetLastError());
|
TclWinConvertError(GetLastError());
|
Tcl_AppendResult(interp, "couldn't execute \"", originalName,
|
Tcl_AppendResult(interp, "couldn't execute \"", originalName,
|
"\": ", Tcl_PosixError(interp), (char *) NULL);
|
"\": ", Tcl_PosixError(interp), (char *) NULL);
|
return APPL_NONE;
|
return APPL_NONE;
|
}
|
}
|
|
|
if ((applType == APPL_DOS) || (applType == APPL_WIN3X)) {
|
if ((applType == APPL_DOS) || (applType == APPL_WIN3X)) {
|
/*
|
/*
|
* Replace long path name of executable with short path name for
|
* Replace long path name of executable with short path name for
|
* 16-bit applications. Otherwise the application may not be able
|
* 16-bit applications. Otherwise the application may not be able
|
* to correctly parse its own command line to separate off the
|
* to correctly parse its own command line to separate off the
|
* application name from the arguments.
|
* application name from the arguments.
|
*/
|
*/
|
|
|
GetShortPathName(fullPath, fullPath, MAX_PATH);
|
GetShortPathName(fullPath, fullPath, MAX_PATH);
|
}
|
}
|
return applType;
|
return applType;
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* BuildCommandLine --
|
* BuildCommandLine --
|
*
|
*
|
* The command line arguments are stored in linePtr separated
|
* The command line arguments are stored in linePtr separated
|
* by spaces, in a form that CreateProcess() understands. Special
|
* by spaces, in a form that CreateProcess() understands. Special
|
* characters in individual arguments from argv[] must be quoted
|
* characters in individual arguments from argv[] must be quoted
|
* when being stored in cmdLine.
|
* when being stored in cmdLine.
|
*
|
*
|
* Results:
|
* Results:
|
* None.
|
* None.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* None.
|
* None.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
static void
|
static void
|
BuildCommandLine(argc, argv, linePtr)
|
BuildCommandLine(argc, argv, linePtr)
|
int argc; /* Number of arguments. */
|
int argc; /* Number of arguments. */
|
char **argv; /* Argument strings. */
|
char **argv; /* Argument strings. */
|
Tcl_DString *linePtr; /* Initialized Tcl_DString that receives the
|
Tcl_DString *linePtr; /* Initialized Tcl_DString that receives the
|
* command line. */
|
* command line. */
|
{
|
{
|
char *start, *special;
|
char *start, *special;
|
int quote, i;
|
int quote, i;
|
|
|
for (i = 0; i < argc; i++) {
|
for (i = 0; i < argc; i++) {
|
if (i > 0) {
|
if (i > 0) {
|
Tcl_DStringAppend(linePtr, " ", 1);
|
Tcl_DStringAppend(linePtr, " ", 1);
|
}
|
}
|
|
|
quote = 0;
|
quote = 0;
|
if (argv[i][0] == '\0') {
|
if (argv[i][0] == '\0') {
|
quote = 1;
|
quote = 1;
|
} else {
|
} else {
|
for (start = argv[i]; *start != '\0'; start++) {
|
for (start = argv[i]; *start != '\0'; start++) {
|
if (isspace(*start)) {
|
if (isspace(*start)) {
|
quote = 1;
|
quote = 1;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
}
|
}
|
if (quote) {
|
if (quote) {
|
Tcl_DStringAppend(linePtr, "\"", 1);
|
Tcl_DStringAppend(linePtr, "\"", 1);
|
}
|
}
|
|
|
start = argv[i];
|
start = argv[i];
|
for (special = argv[i]; ; ) {
|
for (special = argv[i]; ; ) {
|
if ((*special == '\\') &&
|
if ((*special == '\\') &&
|
(special[1] == '\\' || special[1] == '"')) {
|
(special[1] == '\\' || special[1] == '"')) {
|
Tcl_DStringAppend(linePtr, start, special - start);
|
Tcl_DStringAppend(linePtr, start, special - start);
|
start = special;
|
start = special;
|
while (1) {
|
while (1) {
|
special++;
|
special++;
|
if (*special == '"') {
|
if (*special == '"') {
|
/*
|
/*
|
* N backslashes followed a quote -> insert
|
* N backslashes followed a quote -> insert
|
* N * 2 + 1 backslashes then a quote.
|
* N * 2 + 1 backslashes then a quote.
|
*/
|
*/
|
|
|
Tcl_DStringAppend(linePtr, start, special - start);
|
Tcl_DStringAppend(linePtr, start, special - start);
|
break;
|
break;
|
}
|
}
|
if (*special != '\\') {
|
if (*special != '\\') {
|
break;
|
break;
|
}
|
}
|
}
|
}
|
Tcl_DStringAppend(linePtr, start, special - start);
|
Tcl_DStringAppend(linePtr, start, special - start);
|
start = special;
|
start = special;
|
}
|
}
|
if (*special == '"') {
|
if (*special == '"') {
|
Tcl_DStringAppend(linePtr, start, special - start);
|
Tcl_DStringAppend(linePtr, start, special - start);
|
Tcl_DStringAppend(linePtr, "\\\"", 2);
|
Tcl_DStringAppend(linePtr, "\\\"", 2);
|
start = special + 1;
|
start = special + 1;
|
}
|
}
|
if (*special == '\0') {
|
if (*special == '\0') {
|
break;
|
break;
|
}
|
}
|
special++;
|
special++;
|
}
|
}
|
Tcl_DStringAppend(linePtr, start, special - start);
|
Tcl_DStringAppend(linePtr, start, special - start);
|
if (quote) {
|
if (quote) {
|
Tcl_DStringAppend(linePtr, "\"", 1);
|
Tcl_DStringAppend(linePtr, "\"", 1);
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* MakeTempFile --
|
* MakeTempFile --
|
*
|
*
|
* Helper function for TclpCreateProcess under Win32s. Makes a
|
* Helper function for TclpCreateProcess under Win32s. Makes a
|
* temporary file that _won't_ go away automatically when it's file
|
* temporary file that _won't_ go away automatically when it's file
|
* handle is closed. Used for simulated pipes, which are written
|
* handle is closed. Used for simulated pipes, which are written
|
* in one pass and reopened and read in the next pass.
|
* in one pass and reopened and read in the next pass.
|
*
|
*
|
* Results:
|
* Results:
|
* namePtr is filled with the name of the temporary file.
|
* namePtr is filled with the name of the temporary file.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* A temporary file with the name specified by namePtr is created.
|
* A temporary file with the name specified by namePtr is created.
|
* The caller is responsible for deleting this temporary file.
|
* The caller is responsible for deleting this temporary file.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
static char *
|
static char *
|
MakeTempFile(namePtr)
|
MakeTempFile(namePtr)
|
Tcl_DString *namePtr; /* Initialized Tcl_DString that is filled
|
Tcl_DString *namePtr; /* Initialized Tcl_DString that is filled
|
* with the name of the temporary file that
|
* with the name of the temporary file that
|
* was created. */
|
* was created. */
|
{
|
{
|
char name[MAX_PATH];
|
char name[MAX_PATH];
|
|
|
if (TempFileName(name) == 0) {
|
if (TempFileName(name) == 0) {
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
Tcl_DStringAppend(namePtr, name, -1);
|
Tcl_DStringAppend(namePtr, name, -1);
|
return Tcl_DStringValue(namePtr);
|
return Tcl_DStringValue(namePtr);
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* CopyChannel --
|
* CopyChannel --
|
*
|
*
|
* Helper function used by TclpCreateProcess under Win32s. Copies
|
* Helper function used by TclpCreateProcess under Win32s. Copies
|
* what remains of source file to destination file; source file
|
* what remains of source file to destination file; source file
|
* pointer need not be positioned at the beginning of the file if
|
* pointer need not be positioned at the beginning of the file if
|
* all of source file is not desired, but data is copied up to end
|
* all of source file is not desired, but data is copied up to end
|
* of source file.
|
* of source file.
|
*
|
*
|
* Results:
|
* Results:
|
* None.
|
* None.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* None.
|
* None.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
static void
|
static void
|
CopyChannel(dst, src)
|
CopyChannel(dst, src)
|
HANDLE dst; /* Destination file. */
|
HANDLE dst; /* Destination file. */
|
HANDLE src; /* Source file. */
|
HANDLE src; /* Source file. */
|
{
|
{
|
char buf[8192];
|
char buf[8192];
|
DWORD dwRead, dwWrite;
|
DWORD dwRead, dwWrite;
|
|
|
while (ReadFile(src, buf, sizeof(buf), &dwRead, NULL) != FALSE) {
|
while (ReadFile(src, buf, sizeof(buf), &dwRead, NULL) != FALSE) {
|
if (dwRead == 0) {
|
if (dwRead == 0) {
|
break;
|
break;
|
}
|
}
|
if (WriteFile(dst, buf, dwRead, &dwWrite, NULL) == FALSE) {
|
if (WriteFile(dst, buf, dwRead, &dwWrite, NULL) == FALSE) {
|
break;
|
break;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* TclpCreateCommandChannel --
|
* TclpCreateCommandChannel --
|
*
|
*
|
* This function is called by Tcl_OpenCommandChannel to perform
|
* This function is called by Tcl_OpenCommandChannel to perform
|
* the platform specific channel initialization for a command
|
* the platform specific channel initialization for a command
|
* channel.
|
* channel.
|
*
|
*
|
* Results:
|
* Results:
|
* Returns a new channel or NULL on failure.
|
* Returns a new channel or NULL on failure.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* Allocates a new channel.
|
* Allocates a new channel.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
Tcl_Channel
|
Tcl_Channel
|
TclpCreateCommandChannel(readFile, writeFile, errorFile, numPids, pidPtr)
|
TclpCreateCommandChannel(readFile, writeFile, errorFile, numPids, pidPtr)
|
TclFile readFile; /* If non-null, gives the file for reading. */
|
TclFile readFile; /* If non-null, gives the file for reading. */
|
TclFile writeFile; /* If non-null, gives the file for writing. */
|
TclFile writeFile; /* If non-null, gives the file for writing. */
|
TclFile errorFile; /* If non-null, gives the file where errors
|
TclFile errorFile; /* If non-null, gives the file where errors
|
* can be read. */
|
* can be read. */
|
int numPids; /* The number of pids in the pid array. */
|
int numPids; /* The number of pids in the pid array. */
|
Tcl_Pid *pidPtr; /* An array of process identifiers. */
|
Tcl_Pid *pidPtr; /* An array of process identifiers. */
|
{
|
{
|
char channelName[20];
|
char channelName[20];
|
int channelId;
|
int channelId;
|
PipeInfo *infoPtr = (PipeInfo *) ckalloc((unsigned) sizeof(PipeInfo));
|
PipeInfo *infoPtr = (PipeInfo *) ckalloc((unsigned) sizeof(PipeInfo));
|
|
|
if (!initialized) {
|
if (!initialized) {
|
PipeInit();
|
PipeInit();
|
}
|
}
|
|
|
infoPtr->watchMask = 0;
|
infoPtr->watchMask = 0;
|
infoPtr->flags = 0;
|
infoPtr->flags = 0;
|
infoPtr->readFile = readFile;
|
infoPtr->readFile = readFile;
|
infoPtr->writeFile = writeFile;
|
infoPtr->writeFile = writeFile;
|
infoPtr->errorFile = errorFile;
|
infoPtr->errorFile = errorFile;
|
infoPtr->numPids = numPids;
|
infoPtr->numPids = numPids;
|
infoPtr->pidPtr = pidPtr;
|
infoPtr->pidPtr = pidPtr;
|
|
|
/* CYGNUS LOCAL: Mutex for flags. */
|
/* CYGNUS LOCAL: Mutex for flags. */
|
infoPtr->flagsMutex = CreateMutex(NULL, FALSE, NULL);
|
infoPtr->flagsMutex = CreateMutex(NULL, FALSE, NULL);
|
|
|
/*
|
/*
|
* Use one of the fds associated with the channel as the
|
* Use one of the fds associated with the channel as the
|
* channel id.
|
* channel id.
|
*/
|
*/
|
|
|
if (readFile) {
|
if (readFile) {
|
WinPipe *pipePtr = (WinPipe *) readFile;
|
WinPipe *pipePtr = (WinPipe *) readFile;
|
if (pipePtr->file.type == WIN32S_PIPE
|
if (pipePtr->file.type == WIN32S_PIPE
|
&& pipePtr->file.handle == INVALID_HANDLE_VALUE) {
|
&& pipePtr->file.handle == INVALID_HANDLE_VALUE) {
|
pipePtr->file.handle = CreateFile(pipePtr->fileName, GENERIC_READ,
|
pipePtr->file.handle = CreateFile(pipePtr->fileName, GENERIC_READ,
|
0, NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
|
0, NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
|
}
|
}
|
channelId = (int) pipePtr->file.handle;
|
channelId = (int) pipePtr->file.handle;
|
} else if (writeFile) {
|
} else if (writeFile) {
|
channelId = (int) ((WinFile*)writeFile)->handle;
|
channelId = (int) ((WinFile*)writeFile)->handle;
|
} else if (errorFile) {
|
} else if (errorFile) {
|
channelId = (int) ((WinFile*)errorFile)->handle;
|
channelId = (int) ((WinFile*)errorFile)->handle;
|
} else {
|
} else {
|
channelId = 0;
|
channelId = 0;
|
}
|
}
|
|
|
infoPtr->validMask = 0;
|
infoPtr->validMask = 0;
|
if (readFile != NULL) {
|
if (readFile != NULL) {
|
infoPtr->validMask |= TCL_READABLE;
|
infoPtr->validMask |= TCL_READABLE;
|
}
|
}
|
if (writeFile != NULL) {
|
if (writeFile != NULL) {
|
infoPtr->validMask |= TCL_WRITABLE;
|
infoPtr->validMask |= TCL_WRITABLE;
|
}
|
}
|
|
|
/*
|
/*
|
* For backward compatibility with previous versions of Tcl, we
|
* For backward compatibility with previous versions of Tcl, we
|
* use "file%d" as the base name for pipes even though it would
|
* use "file%d" as the base name for pipes even though it would
|
* be more natural to use "pipe%d".
|
* be more natural to use "pipe%d".
|
*/
|
*/
|
|
|
sprintf(channelName, "file%d", channelId);
|
sprintf(channelName, "file%d", channelId);
|
infoPtr->channel = Tcl_CreateChannel(&pipeChannelType, channelName,
|
infoPtr->channel = Tcl_CreateChannel(&pipeChannelType, channelName,
|
(ClientData) infoPtr, infoPtr->validMask);
|
(ClientData) infoPtr, infoPtr->validMask);
|
|
|
/*
|
/*
|
* Pipes have AUTO translation mode on Windows and ^Z eof char, which
|
* Pipes have AUTO translation mode on Windows and ^Z eof char, which
|
* means that a ^Z will be appended to them at close. This is needed
|
* means that a ^Z will be appended to them at close. This is needed
|
* for Windows programs that expect a ^Z at EOF.
|
* for Windows programs that expect a ^Z at EOF.
|
*/
|
*/
|
|
|
Tcl_SetChannelOption((Tcl_Interp *) NULL, infoPtr->channel,
|
Tcl_SetChannelOption((Tcl_Interp *) NULL, infoPtr->channel,
|
"-translation", "auto");
|
"-translation", "auto");
|
Tcl_SetChannelOption((Tcl_Interp *) NULL, infoPtr->channel,
|
Tcl_SetChannelOption((Tcl_Interp *) NULL, infoPtr->channel,
|
"-eofchar", "\032 {}");
|
"-eofchar", "\032 {}");
|
return infoPtr->channel;
|
return infoPtr->channel;
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* TclGetAndDetachPids --
|
* TclGetAndDetachPids --
|
*
|
*
|
* Stores a list of the command PIDs for a command channel in
|
* Stores a list of the command PIDs for a command channel in
|
* interp->result.
|
* interp->result.
|
*
|
*
|
* Results:
|
* Results:
|
* None.
|
* None.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* Modifies interp->result.
|
* Modifies interp->result.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
void
|
void
|
TclGetAndDetachPids(interp, chan)
|
TclGetAndDetachPids(interp, chan)
|
Tcl_Interp *interp;
|
Tcl_Interp *interp;
|
Tcl_Channel chan;
|
Tcl_Channel chan;
|
{
|
{
|
PipeInfo *pipePtr;
|
PipeInfo *pipePtr;
|
Tcl_ChannelType *chanTypePtr;
|
Tcl_ChannelType *chanTypePtr;
|
int i;
|
int i;
|
char buf[20];
|
char buf[20];
|
|
|
/*
|
/*
|
* Punt if the channel is not a command channel.
|
* Punt if the channel is not a command channel.
|
*/
|
*/
|
|
|
chanTypePtr = Tcl_GetChannelType(chan);
|
chanTypePtr = Tcl_GetChannelType(chan);
|
if (chanTypePtr != &pipeChannelType) {
|
if (chanTypePtr != &pipeChannelType) {
|
return;
|
return;
|
}
|
}
|
|
|
pipePtr = (PipeInfo *) Tcl_GetChannelInstanceData(chan);
|
pipePtr = (PipeInfo *) Tcl_GetChannelInstanceData(chan);
|
for (i = 0; i < pipePtr->numPids; i++) {
|
for (i = 0; i < pipePtr->numPids; i++) {
|
sprintf(buf, "%lu", TclpGetPid(pipePtr->pidPtr[i]));
|
sprintf(buf, "%lu", TclpGetPid(pipePtr->pidPtr[i]));
|
Tcl_AppendElement(interp, buf);
|
Tcl_AppendElement(interp, buf);
|
Tcl_DetachPids(1, &(pipePtr->pidPtr[i]));
|
Tcl_DetachPids(1, &(pipePtr->pidPtr[i]));
|
}
|
}
|
if (pipePtr->numPids > 0) {
|
if (pipePtr->numPids > 0) {
|
ckfree((char *) pipePtr->pidPtr);
|
ckfree((char *) pipePtr->pidPtr);
|
pipePtr->numPids = 0;
|
pipePtr->numPids = 0;
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* PipeBlockModeProc --
|
* PipeBlockModeProc --
|
*
|
*
|
* Set blocking or non-blocking mode on channel.
|
* Set blocking or non-blocking mode on channel.
|
*
|
*
|
* Results:
|
* Results:
|
* 0 if successful, errno when failed.
|
* 0 if successful, errno when failed.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* Sets the device into blocking or non-blocking mode.
|
* Sets the device into blocking or non-blocking mode.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
static int
|
static int
|
PipeBlockModeProc(instanceData, mode)
|
PipeBlockModeProc(instanceData, mode)
|
ClientData instanceData; /* Instance data for channel. */
|
ClientData instanceData; /* Instance data for channel. */
|
int mode; /* TCL_MODE_BLOCKING or
|
int mode; /* TCL_MODE_BLOCKING or
|
* TCL_MODE_NONBLOCKING. */
|
* TCL_MODE_NONBLOCKING. */
|
{
|
{
|
PipeInfo *infoPtr = (PipeInfo *) instanceData;
|
PipeInfo *infoPtr = (PipeInfo *) instanceData;
|
|
|
/*
|
/*
|
* Pipes on Windows can not be switched between blocking and nonblocking,
|
* Pipes on Windows can not be switched between blocking and nonblocking,
|
* hence we have to emulate the behavior. This is done in the input
|
* hence we have to emulate the behavior. This is done in the input
|
* function by checking against a bit in the state. We set or unset the
|
* function by checking against a bit in the state. We set or unset the
|
* bit here to cause the input function to emulate the correct behavior.
|
* bit here to cause the input function to emulate the correct behavior.
|
*/
|
*/
|
|
|
if (mode == TCL_MODE_NONBLOCKING) {
|
if (mode == TCL_MODE_NONBLOCKING) {
|
PipeSetFlag(infoPtr, PIPE_ASYNC);
|
PipeSetFlag(infoPtr, PIPE_ASYNC);
|
} else {
|
} else {
|
PipeResetFlag(infoPtr, PIPE_ASYNC);
|
PipeResetFlag(infoPtr, PIPE_ASYNC);
|
}
|
}
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* PipeCloseProc --
|
* PipeCloseProc --
|
*
|
*
|
* Closes a pipe based IO channel.
|
* Closes a pipe based IO channel.
|
*
|
*
|
* Results:
|
* Results:
|
* 0 on success, errno otherwise.
|
* 0 on success, errno otherwise.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* Closes the physical channel.
|
* Closes the physical channel.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
static int
|
static int
|
PipeCloseProc(instanceData, interp)
|
PipeCloseProc(instanceData, interp)
|
ClientData instanceData; /* Pointer to PipeInfo structure. */
|
ClientData instanceData; /* Pointer to PipeInfo structure. */
|
Tcl_Interp *interp; /* For error reporting. */
|
Tcl_Interp *interp; /* For error reporting. */
|
{
|
{
|
PipeInfo *pipePtr = (PipeInfo *) instanceData;
|
PipeInfo *pipePtr = (PipeInfo *) instanceData;
|
Tcl_Channel errChan;
|
Tcl_Channel errChan;
|
int errorCode, result;
|
int errorCode, result;
|
PipeInfo *infoPtr, **nextPtrPtr;
|
PipeInfo *infoPtr, **nextPtrPtr;
|
|
|
/*
|
/*
|
* Remove the file from the list of watched files.
|
* Remove the file from the list of watched files.
|
*/
|
*/
|
|
|
for (nextPtrPtr = &firstPipePtr, infoPtr = *nextPtrPtr; infoPtr != NULL;
|
for (nextPtrPtr = &firstPipePtr, infoPtr = *nextPtrPtr; infoPtr != NULL;
|
nextPtrPtr = &infoPtr->nextPtr, infoPtr = *nextPtrPtr) {
|
nextPtrPtr = &infoPtr->nextPtr, infoPtr = *nextPtrPtr) {
|
if (infoPtr == (PipeInfo *)pipePtr) {
|
if (infoPtr == (PipeInfo *)pipePtr) {
|
*nextPtrPtr = infoPtr->nextPtr;
|
*nextPtrPtr = infoPtr->nextPtr;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
errorCode = 0;
|
errorCode = 0;
|
if (pipePtr->readFile != NULL) {
|
if (pipePtr->readFile != NULL) {
|
if (TclpCloseFile(pipePtr->readFile) != 0) {
|
if (TclpCloseFile(pipePtr->readFile) != 0) {
|
errorCode = errno;
|
errorCode = errno;
|
}
|
}
|
}
|
}
|
if (pipePtr->writeFile != NULL) {
|
if (pipePtr->writeFile != NULL) {
|
if (TclpCloseFile(pipePtr->writeFile) != 0) {
|
if (TclpCloseFile(pipePtr->writeFile) != 0) {
|
if (errorCode == 0) {
|
if (errorCode == 0) {
|
errorCode = errno;
|
errorCode = errno;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
* Wrap the error file into a channel and give it to the cleanup
|
* Wrap the error file into a channel and give it to the cleanup
|
* routine. If we are running in Win32s, just delete the error file
|
* routine. If we are running in Win32s, just delete the error file
|
* immediately, because it was never used.
|
* immediately, because it was never used.
|
*/
|
*/
|
|
|
if (pipePtr->errorFile) {
|
if (pipePtr->errorFile) {
|
WinFile *filePtr;
|
WinFile *filePtr;
|
OSVERSIONINFO os;
|
OSVERSIONINFO os;
|
|
|
os.dwOSVersionInfoSize = sizeof(os);
|
os.dwOSVersionInfoSize = sizeof(os);
|
GetVersionEx(&os);
|
GetVersionEx(&os);
|
if (os.dwPlatformId == VER_PLATFORM_WIN32s) {
|
if (os.dwPlatformId == VER_PLATFORM_WIN32s) {
|
TclpCloseFile(pipePtr->errorFile);
|
TclpCloseFile(pipePtr->errorFile);
|
errChan = NULL;
|
errChan = NULL;
|
} else {
|
} else {
|
filePtr = (WinFile*)pipePtr->errorFile;
|
filePtr = (WinFile*)pipePtr->errorFile;
|
errChan = Tcl_MakeFileChannel((ClientData) filePtr->handle,
|
errChan = Tcl_MakeFileChannel((ClientData) filePtr->handle,
|
TCL_READABLE);
|
TCL_READABLE);
|
}
|
}
|
} else {
|
} else {
|
errChan = NULL;
|
errChan = NULL;
|
}
|
}
|
result = TclCleanupChildren(interp, pipePtr->numPids, pipePtr->pidPtr,
|
result = TclCleanupChildren(interp, pipePtr->numPids, pipePtr->pidPtr,
|
errChan);
|
errChan);
|
if (pipePtr->numPids > 0) {
|
if (pipePtr->numPids > 0) {
|
ckfree((char *) pipePtr->pidPtr);
|
ckfree((char *) pipePtr->pidPtr);
|
}
|
}
|
|
|
/* CYGNUS LOCAL: If the pipe has a thread, let the thread free the
|
/* CYGNUS LOCAL: If the pipe has a thread, let the thread free the
|
structure. */
|
structure. */
|
if (PipeGetFlags(pipePtr) & PIPE_HAS_THREAD) {
|
if (PipeGetFlags(pipePtr) & PIPE_HAS_THREAD) {
|
WaitForSingleObject(pipePtr->flagsMutex, INFINITE);
|
WaitForSingleObject(pipePtr->flagsMutex, INFINITE);
|
pipePtr->flags |= PIPE_CLOSED;
|
pipePtr->flags |= PIPE_CLOSED;
|
SetEvent(pipePtr->tryReadEvent);
|
SetEvent(pipePtr->tryReadEvent);
|
ReleaseMutex(pipePtr->flagsMutex);
|
ReleaseMutex(pipePtr->flagsMutex);
|
} else {
|
} else {
|
CloseHandle(pipePtr->flagsMutex);
|
CloseHandle(pipePtr->flagsMutex);
|
ckfree((char*) pipePtr);
|
ckfree((char*) pipePtr);
|
}
|
}
|
|
|
if (errorCode == 0) {
|
if (errorCode == 0) {
|
return result;
|
return result;
|
}
|
}
|
return errorCode;
|
return errorCode;
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* PipeInputProc --
|
* PipeInputProc --
|
*
|
*
|
* Reads input from the IO channel into the buffer given. Returns
|
* Reads input from the IO channel into the buffer given. Returns
|
* count of how many bytes were actually read, and an error indication.
|
* count of how many bytes were actually read, and an error indication.
|
*
|
*
|
* Results:
|
* Results:
|
* A count of how many bytes were read is returned and an error
|
* A count of how many bytes were read is returned and an error
|
* indication is returned in an output argument.
|
* indication is returned in an output argument.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* Reads input from the actual channel.
|
* Reads input from the actual channel.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
static int
|
static int
|
PipeInputProc(instanceData, buf, bufSize, errorCode)
|
PipeInputProc(instanceData, buf, bufSize, errorCode)
|
ClientData instanceData; /* Pipe state. */
|
ClientData instanceData; /* Pipe state. */
|
char *buf; /* Where to store data read. */
|
char *buf; /* Where to store data read. */
|
int bufSize; /* How much space is available
|
int bufSize; /* How much space is available
|
* in the buffer? */
|
* in the buffer? */
|
int *errorCode; /* Where to store error code. */
|
int *errorCode; /* Where to store error code. */
|
{
|
{
|
PipeInfo *infoPtr = (PipeInfo *) instanceData;
|
PipeInfo *infoPtr = (PipeInfo *) instanceData;
|
WinFile *filePtr = (WinFile*) infoPtr->readFile;
|
WinFile *filePtr = (WinFile*) infoPtr->readFile;
|
DWORD count;
|
DWORD count;
|
DWORD bytesRead;
|
DWORD bytesRead;
|
int gotReadAhead = 0;
|
int gotReadAhead = 0;
|
int origBufSize = bufSize;
|
int origBufSize = bufSize;
|
|
|
/* CYGNUS LOCAL: If the pipe has a thread, lock it. */
|
/* CYGNUS LOCAL: If the pipe has a thread, lock it. */
|
if (PipeGetFlags(infoPtr) & PIPE_HAS_THREAD) {
|
if (PipeGetFlags(infoPtr) & PIPE_HAS_THREAD) {
|
WaitForSingleObject(infoPtr->mutex, INFINITE);
|
WaitForSingleObject(infoPtr->mutex, INFINITE);
|
}
|
}
|
|
|
*errorCode = 0;
|
*errorCode = 0;
|
if (filePtr->type == WIN32S_PIPE) {
|
if (filePtr->type == WIN32S_PIPE) {
|
if (((WinPipe *)filePtr)->otherPtr != NULL) {
|
if (((WinPipe *)filePtr)->otherPtr != NULL) {
|
panic("PipeInputProc: child process isn't finished writing");
|
panic("PipeInputProc: child process isn't finished writing");
|
}
|
}
|
if (filePtr->handle == INVALID_HANDLE_VALUE) {
|
if (filePtr->handle == INVALID_HANDLE_VALUE) {
|
filePtr->handle = CreateFile(((WinPipe *)filePtr)->fileName,
|
filePtr->handle = CreateFile(((WinPipe *)filePtr)->fileName,
|
GENERIC_READ, 0, NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL,
|
GENERIC_READ, 0, NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL,
|
NULL);
|
NULL);
|
}
|
}
|
if (filePtr->handle == INVALID_HANDLE_VALUE) {
|
if (filePtr->handle == INVALID_HANDLE_VALUE) {
|
goto error;
|
goto error;
|
}
|
}
|
} else {
|
} else {
|
/*
|
/*
|
* Pipes will block until the requested number of bytes has been
|
* Pipes will block until the requested number of bytes has been
|
* read. To avoid blocking unnecessarily, we look ahead and only
|
* read. To avoid blocking unnecessarily, we look ahead and only
|
* read as much as is available.
|
* read as much as is available.
|
*/
|
*/
|
|
|
if (PeekNamedPipe(filePtr->handle, (LPVOID) NULL, (DWORD) 0,
|
if (PeekNamedPipe(filePtr->handle, (LPVOID) NULL, (DWORD) 0,
|
(LPDWORD) NULL, &count, (LPDWORD) NULL) == TRUE) {
|
(LPDWORD) NULL, &count, (LPDWORD) NULL) == TRUE) {
|
if ((count != 0) && ((DWORD) bufSize > count)) {
|
if ((count != 0) && ((DWORD) bufSize > count)) {
|
bufSize = (int) count;
|
bufSize = (int) count;
|
|
|
/*
|
/*
|
* This code is commented out because on Win95 we don't get
|
* This code is commented out because on Win95 we don't get
|
* notifier of eof on a pipe unless we try to read it.
|
* notifier of eof on a pipe unless we try to read it.
|
* The correct solution is to move to threads.
|
* The correct solution is to move to threads.
|
*/
|
*/
|
|
|
/* } else if ((count == 0) && (PipeGetFlags(infoPtr) & PIPE_ASYNC)) { */
|
/* } else if ((count == 0) && (PipeGetFlags(infoPtr) & PIPE_ASYNC)) { */
|
/* errno = *errorCode = EAGAIN; */
|
/* errno = *errorCode = EAGAIN; */
|
/* return -1; */
|
/* return -1; */
|
} else if ((count == 0) && !(PipeGetFlags(infoPtr) & PIPE_ASYNC)) {
|
} else if ((count == 0) && !(PipeGetFlags(infoPtr) & PIPE_ASYNC)) {
|
bufSize = 1;
|
bufSize = 1;
|
}
|
}
|
} else {
|
} else {
|
goto error;
|
goto error;
|
}
|
}
|
}
|
}
|
|
|
/* CYGNUS LOCAL: Check for the readahead byte. */
|
/* CYGNUS LOCAL: Check for the readahead byte. */
|
if (PipeGetFlags(infoPtr) & PIPE_READAHEAD) {
|
if (PipeGetFlags(infoPtr) & PIPE_READAHEAD) {
|
*buf++ = infoPtr->readAhead;
|
*buf++ = infoPtr->readAhead;
|
PipeResetFlag(infoPtr, PIPE_READAHEAD);
|
PipeResetFlag(infoPtr, PIPE_READAHEAD);
|
if (bufSize <= 1) {
|
if (bufSize <= 1) {
|
PipeResetFlag(infoPtr, PIPE_READABLE);
|
PipeResetFlag(infoPtr, PIPE_READABLE);
|
ReleaseMutex(infoPtr->mutex);
|
ReleaseMutex(infoPtr->mutex);
|
return 1;
|
return 1;
|
}
|
}
|
gotReadAhead = 1;
|
gotReadAhead = 1;
|
if (bufSize == origBufSize) {
|
if (bufSize == origBufSize) {
|
--bufSize;
|
--bufSize;
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
* Note that we will block on reads from a console buffer until a
|
* Note that we will block on reads from a console buffer until a
|
* full line has been entered. The only way I know of to get
|
* full line has been entered. The only way I know of to get
|
* around this is to write a console driver. We should probably
|
* around this is to write a console driver. We should probably
|
* do this at some point, but for now, we just block.
|
* do this at some point, but for now, we just block.
|
*/
|
*/
|
|
|
if (ReadFile(filePtr->handle, (LPVOID) buf, (DWORD) bufSize, &bytesRead,
|
if (ReadFile(filePtr->handle, (LPVOID) buf, (DWORD) bufSize, &bytesRead,
|
(LPOVERLAPPED) NULL) == FALSE) {
|
(LPOVERLAPPED) NULL) == FALSE) {
|
goto error;
|
goto error;
|
}
|
}
|
|
|
if (PipeGetFlags(infoPtr) & PIPE_HAS_THREAD) {
|
if (PipeGetFlags(infoPtr) & PIPE_HAS_THREAD) {
|
PipeResetFlag(infoPtr, PIPE_READABLE);
|
PipeResetFlag(infoPtr, PIPE_READABLE);
|
ReleaseMutex(infoPtr->mutex);
|
ReleaseMutex(infoPtr->mutex);
|
}
|
}
|
|
|
return bytesRead + gotReadAhead;
|
return bytesRead + gotReadAhead;
|
|
|
error:
|
error:
|
TclWinConvertError(GetLastError());
|
TclWinConvertError(GetLastError());
|
if (PipeGetFlags(infoPtr) & PIPE_HAS_THREAD) {
|
if (PipeGetFlags(infoPtr) & PIPE_HAS_THREAD) {
|
ReleaseMutex(infoPtr->mutex);
|
ReleaseMutex(infoPtr->mutex);
|
}
|
}
|
if (errno == EPIPE) {
|
if (errno == EPIPE) {
|
return 0;
|
return 0;
|
}
|
}
|
*errorCode = errno;
|
*errorCode = errno;
|
return -1;
|
return -1;
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* PipeOutputProc --
|
* PipeOutputProc --
|
*
|
*
|
* Writes the given output on the IO channel. Returns count of how
|
* Writes the given output on the IO channel. Returns count of how
|
* many characters were actually written, and an error indication.
|
* many characters were actually written, and an error indication.
|
*
|
*
|
* Results:
|
* Results:
|
* A count of how many characters were written is returned and an
|
* A count of how many characters were written is returned and an
|
* error indication is returned in an output argument.
|
* error indication is returned in an output argument.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* Writes output on the actual channel.
|
* Writes output on the actual channel.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
static int
|
static int
|
PipeOutputProc(instanceData, buf, toWrite, errorCode)
|
PipeOutputProc(instanceData, buf, toWrite, errorCode)
|
ClientData instanceData; /* Pipe state. */
|
ClientData instanceData; /* Pipe state. */
|
char *buf; /* The data buffer. */
|
char *buf; /* The data buffer. */
|
int toWrite; /* How many bytes to write? */
|
int toWrite; /* How many bytes to write? */
|
int *errorCode; /* Where to store error code. */
|
int *errorCode; /* Where to store error code. */
|
{
|
{
|
PipeInfo *infoPtr = (PipeInfo *) instanceData;
|
PipeInfo *infoPtr = (PipeInfo *) instanceData;
|
WinFile *filePtr = (WinFile*) infoPtr->writeFile;
|
WinFile *filePtr = (WinFile*) infoPtr->writeFile;
|
DWORD bytesWritten;
|
DWORD bytesWritten;
|
|
|
*errorCode = 0;
|
*errorCode = 0;
|
if (WriteFile(filePtr->handle, (LPVOID) buf, (DWORD) toWrite,
|
if (WriteFile(filePtr->handle, (LPVOID) buf, (DWORD) toWrite,
|
&bytesWritten, (LPOVERLAPPED) NULL) == FALSE) {
|
&bytesWritten, (LPOVERLAPPED) NULL) == FALSE) {
|
TclWinConvertError(GetLastError());
|
TclWinConvertError(GetLastError());
|
if (errno == EPIPE) {
|
if (errno == EPIPE) {
|
return 0;
|
return 0;
|
}
|
}
|
*errorCode = errno;
|
*errorCode = errno;
|
return -1;
|
return -1;
|
}
|
}
|
return bytesWritten;
|
return bytesWritten;
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* PipeEventProc --
|
* PipeEventProc --
|
*
|
*
|
* This function is invoked by Tcl_ServiceEvent when a file event
|
* This function is invoked by Tcl_ServiceEvent when a file event
|
* reaches the front of the event queue. This procedure invokes
|
* reaches the front of the event queue. This procedure invokes
|
* Tcl_NotifyChannel on the pipe.
|
* Tcl_NotifyChannel on the pipe.
|
*
|
*
|
* Results:
|
* Results:
|
* Returns 1 if the event was handled, meaning it should be removed
|
* Returns 1 if the event was handled, meaning it should be removed
|
* from the queue. Returns 0 if the event was not handled, meaning
|
* from the queue. Returns 0 if the event was not handled, meaning
|
* it should stay on the queue. The only time the event isn't
|
* it should stay on the queue. The only time the event isn't
|
* handled is if the TCL_FILE_EVENTS flag bit isn't set.
|
* handled is if the TCL_FILE_EVENTS flag bit isn't set.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* Whatever the notifier callback does.
|
* Whatever the notifier callback does.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
static int
|
static int
|
PipeEventProc(evPtr, flags)
|
PipeEventProc(evPtr, flags)
|
Tcl_Event *evPtr; /* Event to service. */
|
Tcl_Event *evPtr; /* Event to service. */
|
int flags; /* Flags that indicate what events to
|
int flags; /* Flags that indicate what events to
|
* handle, such as TCL_FILE_EVENTS. */
|
* handle, such as TCL_FILE_EVENTS. */
|
{
|
{
|
PipeEvent *pipeEvPtr = (PipeEvent *)evPtr;
|
PipeEvent *pipeEvPtr = (PipeEvent *)evPtr;
|
PipeInfo *infoPtr;
|
PipeInfo *infoPtr;
|
WinFile *filePtr;
|
WinFile *filePtr;
|
int mask;
|
int mask;
|
/* DWORD count;*/
|
/* DWORD count;*/
|
|
|
if (!(flags & TCL_FILE_EVENTS)) {
|
if (!(flags & TCL_FILE_EVENTS)) {
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/*
|
/*
|
* Search through the list of watched pipes for the one whose handle
|
* Search through the list of watched pipes for the one whose handle
|
* matches the event. We do this rather than simply dereferencing
|
* matches the event. We do this rather than simply dereferencing
|
* the handle in the event so that pipes can be deleted while the
|
* the handle in the event so that pipes can be deleted while the
|
* event is in the queue.
|
* event is in the queue.
|
*/
|
*/
|
|
|
for (infoPtr = firstPipePtr; infoPtr != NULL; infoPtr = infoPtr->nextPtr) {
|
for (infoPtr = firstPipePtr; infoPtr != NULL; infoPtr = infoPtr->nextPtr) {
|
if (pipeEvPtr->infoPtr == infoPtr) {
|
if (pipeEvPtr->infoPtr == infoPtr) {
|
PipeResetFlag(infoPtr, PIPE_PENDING);
|
PipeResetFlag(infoPtr, PIPE_PENDING);
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
* Remove stale events.
|
* Remove stale events.
|
*/
|
*/
|
|
|
if (!infoPtr) {
|
if (!infoPtr) {
|
return 1;
|
return 1;
|
}
|
}
|
|
|
/*
|
/*
|
* If we aren't on Win32s, check to see if the pipe is readable. Note
|
* If we aren't on Win32s, check to see if the pipe is readable. Note
|
* that we can't tell if a pipe is writable, so we always report it
|
* that we can't tell if a pipe is writable, so we always report it
|
* as being writable.
|
* as being writable.
|
*/
|
*/
|
|
|
filePtr = (WinFile*) ((PipeInfo*)infoPtr)->readFile;
|
filePtr = (WinFile*) ((PipeInfo*)infoPtr)->readFile;
|
if (filePtr->type != WIN32S_PIPE) {
|
if (filePtr->type != WIN32S_PIPE) {
|
|
|
/* CYGNUS LOCAL: Check PIPE_READABLE if we have a thread. */
|
/* CYGNUS LOCAL: Check PIPE_READABLE if we have a thread. */
|
if (PipeGetFlags(infoPtr) & PIPE_HAS_THREAD) {
|
if (PipeGetFlags(infoPtr) & PIPE_HAS_THREAD) {
|
mask = TCL_WRITABLE;
|
mask = TCL_WRITABLE;
|
if (PipeGetFlags(infoPtr) & PIPE_READABLE) {
|
if (PipeGetFlags(infoPtr) & PIPE_READABLE) {
|
mask |= TCL_READABLE;
|
mask |= TCL_READABLE;
|
}
|
}
|
} else {
|
} else {
|
mask = TCL_WRITABLE|TCL_READABLE;
|
mask = TCL_WRITABLE|TCL_READABLE;
|
}
|
}
|
|
|
/* if (PeekNamedPipe(filePtr->handle, (LPVOID) NULL, (DWORD) 0, */
|
/* if (PeekNamedPipe(filePtr->handle, (LPVOID) NULL, (DWORD) 0, */
|
/* (LPDWORD) NULL, &count, (LPDWORD) NULL) == TRUE) { */
|
/* (LPDWORD) NULL, &count, (LPDWORD) NULL) == TRUE) { */
|
/* if (count != 0) { */
|
/* if (count != 0) { */
|
/* mask |= TCL_READABLE; */
|
/* mask |= TCL_READABLE; */
|
/* } */
|
/* } */
|
/* } else { */
|
/* } else { */
|
|
|
/*
|
/*
|
* If the pipe has been closed by the other side, then
|
* If the pipe has been closed by the other side, then
|
* mark the pipe as readable, but not writable.
|
* mark the pipe as readable, but not writable.
|
*/
|
*/
|
|
|
/* if (GetLastError() == ERROR_BROKEN_PIPE) { */
|
/* if (GetLastError() == ERROR_BROKEN_PIPE) { */
|
/* mask = TCL_READABLE; */
|
/* mask = TCL_READABLE; */
|
/* } */
|
/* } */
|
/* } */
|
/* } */
|
} else {
|
} else {
|
mask = TCL_READABLE | TCL_WRITABLE;
|
mask = TCL_READABLE | TCL_WRITABLE;
|
}
|
}
|
|
|
/*
|
/*
|
* Inform the channel of the events.
|
* Inform the channel of the events.
|
*/
|
*/
|
|
|
Tcl_NotifyChannel(infoPtr->channel, infoPtr->watchMask & mask);
|
Tcl_NotifyChannel(infoPtr->channel, infoPtr->watchMask & mask);
|
return 1;
|
return 1;
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* PipeWatchProc --
|
* PipeWatchProc --
|
*
|
*
|
* Called by the notifier to set up to watch for events on this
|
* Called by the notifier to set up to watch for events on this
|
* channel.
|
* channel.
|
*
|
*
|
* Results:
|
* Results:
|
* None.
|
* None.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* None.
|
* None.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
static void
|
static void
|
PipeWatchProc(instanceData, mask)
|
PipeWatchProc(instanceData, mask)
|
ClientData instanceData; /* Pipe state. */
|
ClientData instanceData; /* Pipe state. */
|
int mask; /* What events to watch for; OR-ed
|
int mask; /* What events to watch for; OR-ed
|
* combination of TCL_READABLE,
|
* combination of TCL_READABLE,
|
* TCL_WRITABLE and TCL_EXCEPTION. */
|
* TCL_WRITABLE and TCL_EXCEPTION. */
|
{
|
{
|
PipeInfo **nextPtrPtr, *ptr;
|
PipeInfo **nextPtrPtr, *ptr;
|
PipeInfo *infoPtr = (PipeInfo *) instanceData;
|
PipeInfo *infoPtr = (PipeInfo *) instanceData;
|
int oldMask = infoPtr->watchMask;
|
int oldMask = infoPtr->watchMask;
|
|
|
/*
|
/*
|
* For now, we just send a message to ourselves so we can poll the
|
* For now, we just send a message to ourselves so we can poll the
|
* channel for readable events.
|
* channel for readable events.
|
*/
|
*/
|
|
|
infoPtr->watchMask = mask & infoPtr->validMask;
|
infoPtr->watchMask = mask & infoPtr->validMask;
|
if (infoPtr->watchMask) {
|
if (infoPtr->watchMask) {
|
Tcl_Time blockTime = { 0, 0 };
|
Tcl_Time blockTime = { 0, 0 };
|
|
|
/* CYGNUS LOCAL: Set up a thread if necessary. */
|
/* CYGNUS LOCAL: Set up a thread if necessary. */
|
if ((infoPtr->watchMask & TCL_READABLE) != 0
|
if ((infoPtr->watchMask & TCL_READABLE) != 0
|
&& (PipeGetFlags(infoPtr) & PIPE_HAS_THREAD) == 0) {
|
&& (PipeGetFlags(infoPtr) & PIPE_HAS_THREAD) == 0) {
|
HANDLE thread;
|
HANDLE thread;
|
DWORD tid;
|
DWORD tid;
|
|
|
infoPtr->tryReadEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
|
infoPtr->tryReadEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
|
infoPtr->mutex = CreateMutex(NULL, FALSE, NULL);
|
infoPtr->mutex = CreateMutex(NULL, FALSE, NULL);
|
PipeSetFlag(infoPtr, PIPE_HAS_THREAD);
|
PipeSetFlag(infoPtr, PIPE_HAS_THREAD);
|
thread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE) PipeThread, infoPtr, 0, &tid);
|
thread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE) PipeThread, infoPtr, 0, &tid);
|
CloseHandle(thread);
|
CloseHandle(thread);
|
}
|
}
|
|
|
if (!oldMask) {
|
if (!oldMask) {
|
infoPtr->nextPtr = firstPipePtr;
|
infoPtr->nextPtr = firstPipePtr;
|
firstPipePtr = infoPtr;
|
firstPipePtr = infoPtr;
|
}
|
}
|
Tcl_SetMaxBlockTime(&blockTime);
|
Tcl_SetMaxBlockTime(&blockTime);
|
} else {
|
} else {
|
if (oldMask) {
|
if (oldMask) {
|
/*
|
/*
|
* Remove the pipe from the list of watched pipes.
|
* Remove the pipe from the list of watched pipes.
|
*/
|
*/
|
|
|
for (nextPtrPtr = &firstPipePtr, ptr = *nextPtrPtr;
|
for (nextPtrPtr = &firstPipePtr, ptr = *nextPtrPtr;
|
ptr != NULL;
|
ptr != NULL;
|
nextPtrPtr = &ptr->nextPtr, ptr = *nextPtrPtr) {
|
nextPtrPtr = &ptr->nextPtr, ptr = *nextPtrPtr) {
|
if (infoPtr == ptr) {
|
if (infoPtr == ptr) {
|
*nextPtrPtr = ptr->nextPtr;
|
*nextPtrPtr = ptr->nextPtr;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* PipeGetHandleProc --
|
* PipeGetHandleProc --
|
*
|
*
|
* Called from Tcl_GetChannelHandle to retrieve OS handles from
|
* Called from Tcl_GetChannelHandle to retrieve OS handles from
|
* inside a command pipeline based channel.
|
* inside a command pipeline based channel.
|
*
|
*
|
* Results:
|
* Results:
|
* Returns TCL_OK with the fd in handlePtr, or TCL_ERROR if
|
* Returns TCL_OK with the fd in handlePtr, or TCL_ERROR if
|
* there is no handle for the specified direction.
|
* there is no handle for the specified direction.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* None.
|
* None.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
static int
|
static int
|
PipeGetHandleProc(instanceData, direction, handlePtr)
|
PipeGetHandleProc(instanceData, direction, handlePtr)
|
ClientData instanceData; /* The pipe state. */
|
ClientData instanceData; /* The pipe state. */
|
int direction; /* TCL_READABLE or TCL_WRITABLE */
|
int direction; /* TCL_READABLE or TCL_WRITABLE */
|
ClientData *handlePtr; /* Where to store the handle. */
|
ClientData *handlePtr; /* Where to store the handle. */
|
{
|
{
|
PipeInfo *infoPtr = (PipeInfo *) instanceData;
|
PipeInfo *infoPtr = (PipeInfo *) instanceData;
|
WinFile *filePtr;
|
WinFile *filePtr;
|
|
|
if (direction == TCL_READABLE && infoPtr->readFile) {
|
if (direction == TCL_READABLE && infoPtr->readFile) {
|
filePtr = (WinFile*) infoPtr->readFile;
|
filePtr = (WinFile*) infoPtr->readFile;
|
if (filePtr->type == WIN32S_PIPE) {
|
if (filePtr->type == WIN32S_PIPE) {
|
if (filePtr->handle == INVALID_HANDLE_VALUE) {
|
if (filePtr->handle == INVALID_HANDLE_VALUE) {
|
filePtr->handle = CreateFile(((WinPipe *)filePtr)->fileName,
|
filePtr->handle = CreateFile(((WinPipe *)filePtr)->fileName,
|
GENERIC_READ, 0, NULL, OPEN_ALWAYS,
|
GENERIC_READ, 0, NULL, OPEN_ALWAYS,
|
FILE_ATTRIBUTE_NORMAL, NULL);
|
FILE_ATTRIBUTE_NORMAL, NULL);
|
}
|
}
|
if (filePtr->handle == INVALID_HANDLE_VALUE) {
|
if (filePtr->handle == INVALID_HANDLE_VALUE) {
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
}
|
}
|
*handlePtr = (ClientData) filePtr->handle;
|
*handlePtr = (ClientData) filePtr->handle;
|
return TCL_OK;
|
return TCL_OK;
|
}
|
}
|
if (direction == TCL_WRITABLE && infoPtr->writeFile) {
|
if (direction == TCL_WRITABLE && infoPtr->writeFile) {
|
filePtr = (WinFile*) infoPtr->writeFile;
|
filePtr = (WinFile*) infoPtr->writeFile;
|
*handlePtr = (ClientData) filePtr->handle;
|
*handlePtr = (ClientData) filePtr->handle;
|
return TCL_OK;
|
return TCL_OK;
|
}
|
}
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* Tcl_WaitPid --
|
* Tcl_WaitPid --
|
*
|
*
|
* Emulates the waitpid system call.
|
* Emulates the waitpid system call.
|
*
|
*
|
* Results:
|
* Results:
|
* Returns 0 if the process is still alive, -1 on an error, or
|
* Returns 0 if the process is still alive, -1 on an error, or
|
* the pid on a clean close.
|
* the pid on a clean close.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* Unless WNOHANG is set and the wait times out, the process
|
* Unless WNOHANG is set and the wait times out, the process
|
* information record will be deleted and the process handle
|
* information record will be deleted and the process handle
|
* will be closed.
|
* will be closed.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
Tcl_Pid
|
Tcl_Pid
|
Tcl_WaitPid(pid, statPtr, options)
|
Tcl_WaitPid(pid, statPtr, options)
|
Tcl_Pid pid;
|
Tcl_Pid pid;
|
int *statPtr;
|
int *statPtr;
|
int options;
|
int options;
|
{
|
{
|
ProcInfo *infoPtr, **prevPtrPtr;
|
ProcInfo *infoPtr, **prevPtrPtr;
|
int flags;
|
int flags;
|
Tcl_Pid result;
|
Tcl_Pid result;
|
DWORD ret;
|
DWORD ret;
|
|
|
if (!initialized) {
|
if (!initialized) {
|
PipeInit();
|
PipeInit();
|
}
|
}
|
|
|
/*
|
/*
|
* If no pid is specified, do nothing.
|
* If no pid is specified, do nothing.
|
*/
|
*/
|
|
|
if (pid == 0) {
|
if (pid == 0) {
|
*statPtr = 0;
|
*statPtr = 0;
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/*
|
/*
|
* Find the process on the process list.
|
* Find the process on the process list.
|
*/
|
*/
|
|
|
prevPtrPtr = &procList;
|
prevPtrPtr = &procList;
|
for (infoPtr = procList; infoPtr != NULL;
|
for (infoPtr = procList; infoPtr != NULL;
|
prevPtrPtr = &infoPtr->nextPtr, infoPtr = infoPtr->nextPtr) {
|
prevPtrPtr = &infoPtr->nextPtr, infoPtr = infoPtr->nextPtr) {
|
if (infoPtr->hProcess == (HANDLE) pid) {
|
if (infoPtr->hProcess == (HANDLE) pid) {
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
* If the pid is not one of the processes we know about (we started it)
|
* If the pid is not one of the processes we know about (we started it)
|
* then do nothing.
|
* then do nothing.
|
*/
|
*/
|
|
|
if (infoPtr == NULL) {
|
if (infoPtr == NULL) {
|
*statPtr = 0;
|
*statPtr = 0;
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/*
|
/*
|
* Officially "wait" for it to finish. We either poll (WNOHANG) or
|
* Officially "wait" for it to finish. We either poll (WNOHANG) or
|
* wait for an infinite amount of time.
|
* wait for an infinite amount of time.
|
*/
|
*/
|
|
|
if (options & WNOHANG) {
|
if (options & WNOHANG) {
|
flags = 0;
|
flags = 0;
|
} else {
|
} else {
|
flags = INFINITE;
|
flags = INFINITE;
|
}
|
}
|
ret = WaitForSingleObject(infoPtr->hProcess, flags);
|
ret = WaitForSingleObject(infoPtr->hProcess, flags);
|
if (ret == WAIT_TIMEOUT) {
|
if (ret == WAIT_TIMEOUT) {
|
*statPtr = 0;
|
*statPtr = 0;
|
if (options & WNOHANG) {
|
if (options & WNOHANG) {
|
return 0;
|
return 0;
|
} else {
|
} else {
|
result = 0;
|
result = 0;
|
}
|
}
|
} else if (ret != WAIT_FAILED) {
|
} else if (ret != WAIT_FAILED) {
|
GetExitCodeProcess(infoPtr->hProcess, (DWORD*)statPtr);
|
GetExitCodeProcess(infoPtr->hProcess, (DWORD*)statPtr);
|
#ifdef __OLD_CYGWIN__
|
#ifdef __OLD_CYGWIN__
|
/* A cygwin program that exits because of a signal will set
|
/* A cygwin program that exits because of a signal will set
|
the exit status to 0x10000 | (sig << 8). Fix that back
|
the exit status to 0x10000 | (sig << 8). Fix that back
|
into a standard Unix wait status. */
|
into a standard Unix wait status. */
|
if ((*statPtr & 0x10000) != 0
|
if ((*statPtr & 0x10000) != 0
|
&& (*statPtr & 0xff00) != 0
|
&& (*statPtr & 0xff00) != 0
|
&& (*statPtr & ~ 0x1ff00) == 0) {
|
&& (*statPtr & ~ 0x1ff00) == 0) {
|
*statPtr = (*statPtr >> 8) & 0xff;
|
*statPtr = (*statPtr >> 8) & 0xff;
|
} else
|
} else
|
#endif
|
#endif
|
*statPtr = ((*statPtr << 8) & 0xff00);
|
*statPtr = ((*statPtr << 8) & 0xff00);
|
result = pid;
|
result = pid;
|
} else {
|
} else {
|
errno = ECHILD;
|
errno = ECHILD;
|
*statPtr = ECHILD;
|
*statPtr = ECHILD;
|
result = (Tcl_Pid) -1;
|
result = (Tcl_Pid) -1;
|
}
|
}
|
|
|
/*
|
/*
|
* Remove the process from the process list and close the process handle.
|
* Remove the process from the process list and close the process handle.
|
*/
|
*/
|
|
|
CloseHandle(infoPtr->hProcess);
|
CloseHandle(infoPtr->hProcess);
|
*prevPtrPtr = infoPtr->nextPtr;
|
*prevPtrPtr = infoPtr->nextPtr;
|
ckfree((char*)infoPtr);
|
ckfree((char*)infoPtr);
|
|
|
return result;
|
return result;
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* Tcl_PidObjCmd --
|
* Tcl_PidObjCmd --
|
*
|
*
|
* This procedure is invoked to process the "pid" Tcl command.
|
* This procedure is invoked to process the "pid" Tcl command.
|
* See the user documentation for details on what it does.
|
* See the user documentation for details on what it does.
|
*
|
*
|
* Results:
|
* Results:
|
* A standard Tcl result.
|
* A standard Tcl result.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* See the user documentation.
|
* See the user documentation.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
/* ARGSUSED */
|
/* ARGSUSED */
|
int
|
int
|
Tcl_PidObjCmd(dummy, interp, objc, objv)
|
Tcl_PidObjCmd(dummy, interp, objc, objv)
|
ClientData dummy; /* Not used. */
|
ClientData dummy; /* Not used. */
|
Tcl_Interp *interp; /* Current interpreter. */
|
Tcl_Interp *interp; /* Current interpreter. */
|
int objc; /* Number of arguments. */
|
int objc; /* Number of arguments. */
|
Tcl_Obj *CONST *objv; /* Argument strings. */
|
Tcl_Obj *CONST *objv; /* Argument strings. */
|
{
|
{
|
Tcl_Channel chan;
|
Tcl_Channel chan;
|
Tcl_ChannelType *chanTypePtr;
|
Tcl_ChannelType *chanTypePtr;
|
PipeInfo *pipePtr;
|
PipeInfo *pipePtr;
|
int i;
|
int i;
|
Tcl_Obj *resultPtr;
|
Tcl_Obj *resultPtr;
|
char buf[20];
|
char buf[20];
|
|
|
if (objc > 2) {
|
if (objc > 2) {
|
Tcl_WrongNumArgs(interp, 1, objv, "?channelId?");
|
Tcl_WrongNumArgs(interp, 1, objv, "?channelId?");
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
if (objc == 1) {
|
if (objc == 1) {
|
resultPtr = Tcl_GetObjResult(interp);
|
resultPtr = Tcl_GetObjResult(interp);
|
sprintf(buf, "%lu", (unsigned long) getpid());
|
sprintf(buf, "%lu", (unsigned long) getpid());
|
Tcl_SetStringObj(resultPtr, buf, -1);
|
Tcl_SetStringObj(resultPtr, buf, -1);
|
} else {
|
} else {
|
chan = Tcl_GetChannel(interp, Tcl_GetStringFromObj(objv[1], NULL),
|
chan = Tcl_GetChannel(interp, Tcl_GetStringFromObj(objv[1], NULL),
|
NULL);
|
NULL);
|
if (chan == (Tcl_Channel) NULL) {
|
if (chan == (Tcl_Channel) NULL) {
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
chanTypePtr = Tcl_GetChannelType(chan);
|
chanTypePtr = Tcl_GetChannelType(chan);
|
if (chanTypePtr != &pipeChannelType) {
|
if (chanTypePtr != &pipeChannelType) {
|
return TCL_OK;
|
return TCL_OK;
|
}
|
}
|
|
|
pipePtr = (PipeInfo *) Tcl_GetChannelInstanceData(chan);
|
pipePtr = (PipeInfo *) Tcl_GetChannelInstanceData(chan);
|
resultPtr = Tcl_GetObjResult(interp);
|
resultPtr = Tcl_GetObjResult(interp);
|
for (i = 0; i < pipePtr->numPids; i++) {
|
for (i = 0; i < pipePtr->numPids; i++) {
|
sprintf(buf, "%lu", TclpGetPid(pipePtr->pidPtr[i]));
|
sprintf(buf, "%lu", TclpGetPid(pipePtr->pidPtr[i]));
|
Tcl_ListObjAppendElement(/*interp*/ NULL, resultPtr,
|
Tcl_ListObjAppendElement(/*interp*/ NULL, resultPtr,
|
Tcl_NewStringObj(buf, -1));
|
Tcl_NewStringObj(buf, -1));
|
}
|
}
|
}
|
}
|
return TCL_OK;
|
return TCL_OK;
|
}
|
}
|
|
|
