/*
|
/*
|
* tclClock.c --
|
* tclClock.c --
|
*
|
*
|
* Contains the time and date related commands. This code
|
* Contains the time and date related commands. This code
|
* is derived from the time and date facilities of TclX,
|
* is derived from the time and date facilities of TclX,
|
* by Mark Diekhans and Karl Lehenbauer.
|
* by Mark Diekhans and Karl Lehenbauer.
|
*
|
*
|
* Copyright 1991-1995 Karl Lehenbauer and Mark Diekhans.
|
* Copyright 1991-1995 Karl Lehenbauer and Mark Diekhans.
|
* Copyright (c) 1995 Sun Microsystems, Inc.
|
* Copyright (c) 1995 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: tclClock.c,v 1.1.1.1 2002-01-16 10:25:25 markom Exp $
|
* RCS: @(#) $Id: tclClock.c,v 1.1.1.1 2002-01-16 10:25:25 markom Exp $
|
*/
|
*/
|
|
|
#include "tcl.h"
|
#include "tcl.h"
|
#include "tclInt.h"
|
#include "tclInt.h"
|
#include "tclPort.h"
|
#include "tclPort.h"
|
|
|
/*
|
/*
|
* Function prototypes for local procedures in this file:
|
* Function prototypes for local procedures in this file:
|
*/
|
*/
|
|
|
static int FormatClock _ANSI_ARGS_((Tcl_Interp *interp,
|
static int FormatClock _ANSI_ARGS_((Tcl_Interp *interp,
|
unsigned long clockVal, int useGMT,
|
unsigned long clockVal, int useGMT,
|
char *format));
|
char *format));
|
|
|
/*
|
/*
|
*-------------------------------------------------------------------------
|
*-------------------------------------------------------------------------
|
*
|
*
|
* Tcl_ClockObjCmd --
|
* Tcl_ClockObjCmd --
|
*
|
*
|
* This procedure is invoked to process the "clock" Tcl command.
|
* This procedure is invoked to process the "clock" 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.
|
*
|
*
|
*-------------------------------------------------------------------------
|
*-------------------------------------------------------------------------
|
*/
|
*/
|
|
|
int
|
int
|
Tcl_ClockObjCmd (client, interp, objc, objv)
|
Tcl_ClockObjCmd (client, interp, objc, objv)
|
ClientData client; /* Not used. */
|
ClientData client; /* 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 values. */
|
Tcl_Obj *CONST objv[]; /* Argument values. */
|
{
|
{
|
Tcl_Obj *resultPtr;
|
Tcl_Obj *resultPtr;
|
int index;
|
int index;
|
Tcl_Obj *CONST *objPtr;
|
Tcl_Obj *CONST *objPtr;
|
int useGMT = 0;
|
int useGMT = 0;
|
char *format = "%a %b %d %X %Z %Y";
|
char *format = "%a %b %d %X %Z %Y";
|
int dummy;
|
int dummy;
|
unsigned long baseClock, clockVal;
|
unsigned long baseClock, clockVal;
|
long zone;
|
long zone;
|
Tcl_Obj *baseObjPtr = NULL;
|
Tcl_Obj *baseObjPtr = NULL;
|
char *scanStr;
|
char *scanStr;
|
|
|
static char *switches[] =
|
static char *switches[] =
|
{"clicks", "format", "scan", "seconds", (char *) NULL};
|
{"clicks", "format", "scan", "seconds", (char *) NULL};
|
static char *formatSwitches[] = {"-format", "-gmt", (char *) NULL};
|
static char *formatSwitches[] = {"-format", "-gmt", (char *) NULL};
|
static char *scanSwitches[] = {"-base", "-gmt", (char *) NULL};
|
static char *scanSwitches[] = {"-base", "-gmt", (char *) NULL};
|
|
|
resultPtr = Tcl_GetObjResult(interp);
|
resultPtr = Tcl_GetObjResult(interp);
|
if (objc < 2) {
|
if (objc < 2) {
|
Tcl_WrongNumArgs(interp, 1, objv, "option ?arg ...?");
|
Tcl_WrongNumArgs(interp, 1, objv, "option ?arg ...?");
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
|
|
if (Tcl_GetIndexFromObj(interp, objv[1], switches, "option", 0, &index)
|
if (Tcl_GetIndexFromObj(interp, objv[1], switches, "option", 0, &index)
|
!= TCL_OK) {
|
!= TCL_OK) {
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
switch (index) {
|
switch (index) {
|
case 0: /* clicks */
|
case 0: /* clicks */
|
if (objc != 2) {
|
if (objc != 2) {
|
Tcl_WrongNumArgs(interp, 2, objv, NULL);
|
Tcl_WrongNumArgs(interp, 2, objv, NULL);
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
Tcl_SetLongObj(resultPtr, (long) TclpGetClicks());
|
Tcl_SetLongObj(resultPtr, (long) TclpGetClicks());
|
return TCL_OK;
|
return TCL_OK;
|
case 1: /* format */
|
case 1: /* format */
|
if ((objc < 3) || (objc > 7)) {
|
if ((objc < 3) || (objc > 7)) {
|
wrongFmtArgs:
|
wrongFmtArgs:
|
Tcl_WrongNumArgs(interp, 2, objv,
|
Tcl_WrongNumArgs(interp, 2, objv,
|
"clockval ?-format string? ?-gmt boolean?");
|
"clockval ?-format string? ?-gmt boolean?");
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
|
|
if (Tcl_GetLongFromObj(interp, objv[2], (long*) &clockVal)
|
if (Tcl_GetLongFromObj(interp, objv[2], (long*) &clockVal)
|
!= TCL_OK) {
|
!= TCL_OK) {
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
|
|
objPtr = objv+3;
|
objPtr = objv+3;
|
objc -= 3;
|
objc -= 3;
|
while (objc > 1) {
|
while (objc > 1) {
|
if (Tcl_GetIndexFromObj(interp, objPtr[0], formatSwitches,
|
if (Tcl_GetIndexFromObj(interp, objPtr[0], formatSwitches,
|
"switch", 0, &index) != TCL_OK) {
|
"switch", 0, &index) != TCL_OK) {
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
switch (index) {
|
switch (index) {
|
case 0: /* -format */
|
case 0: /* -format */
|
format = Tcl_GetStringFromObj(objPtr[1], &dummy);
|
format = Tcl_GetStringFromObj(objPtr[1], &dummy);
|
break;
|
break;
|
case 1: /* -gmt */
|
case 1: /* -gmt */
|
if (Tcl_GetBooleanFromObj(interp, objPtr[1],
|
if (Tcl_GetBooleanFromObj(interp, objPtr[1],
|
&useGMT) != TCL_OK) {
|
&useGMT) != TCL_OK) {
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
break;
|
break;
|
}
|
}
|
objPtr += 2;
|
objPtr += 2;
|
objc -= 2;
|
objc -= 2;
|
}
|
}
|
if (objc != 0) {
|
if (objc != 0) {
|
goto wrongFmtArgs;
|
goto wrongFmtArgs;
|
}
|
}
|
return FormatClock(interp, (unsigned long) clockVal, useGMT,
|
return FormatClock(interp, (unsigned long) clockVal, useGMT,
|
format);
|
format);
|
case 2: /* scan */
|
case 2: /* scan */
|
if ((objc < 3) || (objc > 7)) {
|
if ((objc < 3) || (objc > 7)) {
|
wrongScanArgs:
|
wrongScanArgs:
|
Tcl_WrongNumArgs(interp, 2, objv,
|
Tcl_WrongNumArgs(interp, 2, objv,
|
"dateString ?-base clockValue? ?-gmt boolean?");
|
"dateString ?-base clockValue? ?-gmt boolean?");
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
|
|
objPtr = objv+3;
|
objPtr = objv+3;
|
objc -= 3;
|
objc -= 3;
|
while (objc > 1) {
|
while (objc > 1) {
|
if (Tcl_GetIndexFromObj(interp, objPtr[0], scanSwitches,
|
if (Tcl_GetIndexFromObj(interp, objPtr[0], scanSwitches,
|
"switch", 0, &index) != TCL_OK) {
|
"switch", 0, &index) != TCL_OK) {
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
switch (index) {
|
switch (index) {
|
case 0: /* -base */
|
case 0: /* -base */
|
baseObjPtr = objPtr[1];
|
baseObjPtr = objPtr[1];
|
break;
|
break;
|
case 1: /* -gmt */
|
case 1: /* -gmt */
|
if (Tcl_GetBooleanFromObj(interp, objPtr[1],
|
if (Tcl_GetBooleanFromObj(interp, objPtr[1],
|
&useGMT) != TCL_OK) {
|
&useGMT) != TCL_OK) {
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
break;
|
break;
|
}
|
}
|
objPtr += 2;
|
objPtr += 2;
|
objc -= 2;
|
objc -= 2;
|
}
|
}
|
if (objc != 0) {
|
if (objc != 0) {
|
goto wrongScanArgs;
|
goto wrongScanArgs;
|
}
|
}
|
|
|
if (baseObjPtr != NULL) {
|
if (baseObjPtr != NULL) {
|
if (Tcl_GetLongFromObj(interp, baseObjPtr,
|
if (Tcl_GetLongFromObj(interp, baseObjPtr,
|
(long*) &baseClock) != TCL_OK) {
|
(long*) &baseClock) != TCL_OK) {
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
} else {
|
} else {
|
baseClock = TclpGetSeconds();
|
baseClock = TclpGetSeconds();
|
}
|
}
|
|
|
if (useGMT) {
|
if (useGMT) {
|
zone = -50000; /* Force GMT */
|
zone = -50000; /* Force GMT */
|
} else {
|
} else {
|
zone = TclpGetTimeZone((unsigned long) baseClock);
|
zone = TclpGetTimeZone((unsigned long) baseClock);
|
}
|
}
|
|
|
scanStr = Tcl_GetStringFromObj(objv[2], &dummy);
|
scanStr = Tcl_GetStringFromObj(objv[2], &dummy);
|
if (TclGetDate(scanStr, (unsigned long) baseClock, zone,
|
if (TclGetDate(scanStr, (unsigned long) baseClock, zone,
|
(unsigned long *) &clockVal) < 0) {
|
(unsigned long *) &clockVal) < 0) {
|
Tcl_AppendStringsToObj(resultPtr,
|
Tcl_AppendStringsToObj(resultPtr,
|
"unable to convert date-time string \"",
|
"unable to convert date-time string \"",
|
scanStr, "\"", (char *) NULL);
|
scanStr, "\"", (char *) NULL);
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
|
|
Tcl_SetLongObj(resultPtr, (long) clockVal);
|
Tcl_SetLongObj(resultPtr, (long) clockVal);
|
return TCL_OK;
|
return TCL_OK;
|
case 3: /* seconds */
|
case 3: /* seconds */
|
if (objc != 2) {
|
if (objc != 2) {
|
Tcl_WrongNumArgs(interp, 2, objv, NULL);
|
Tcl_WrongNumArgs(interp, 2, objv, NULL);
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
Tcl_SetLongObj(resultPtr, (long) TclpGetSeconds());
|
Tcl_SetLongObj(resultPtr, (long) TclpGetSeconds());
|
return TCL_OK;
|
return TCL_OK;
|
default:
|
default:
|
return TCL_ERROR; /* Should never be reached. */
|
return TCL_ERROR; /* Should never be reached. */
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
*-----------------------------------------------------------------------------
|
*-----------------------------------------------------------------------------
|
*
|
*
|
* FormatClock --
|
* FormatClock --
|
*
|
*
|
* Formats a time value based on seconds into a human readable
|
* Formats a time value based on seconds into a human readable
|
* string.
|
* string.
|
*
|
*
|
* Results:
|
* Results:
|
* Standard Tcl result.
|
* Standard Tcl result.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* None.
|
* None.
|
*
|
*
|
*-----------------------------------------------------------------------------
|
*-----------------------------------------------------------------------------
|
*/
|
*/
|
|
|
static int
|
static int
|
FormatClock(interp, clockVal, useGMT, format)
|
FormatClock(interp, clockVal, useGMT, format)
|
Tcl_Interp *interp; /* Current interpreter. */
|
Tcl_Interp *interp; /* Current interpreter. */
|
unsigned long clockVal; /* Time in seconds. */
|
unsigned long clockVal; /* Time in seconds. */
|
int useGMT; /* Boolean */
|
int useGMT; /* Boolean */
|
char *format; /* Format string */
|
char *format; /* Format string */
|
{
|
{
|
struct tm *timeDataPtr;
|
struct tm *timeDataPtr;
|
Tcl_DString buffer;
|
Tcl_DString buffer;
|
int bufSize;
|
int bufSize;
|
char *p;
|
char *p;
|
#ifdef TCL_USE_TIMEZONE_VAR
|
#ifdef TCL_USE_TIMEZONE_VAR
|
int savedTimeZone;
|
int savedTimeZone;
|
char *savedTZEnv;
|
char *savedTZEnv;
|
#endif
|
#endif
|
Tcl_Obj *resultPtr;
|
Tcl_Obj *resultPtr;
|
|
|
resultPtr = Tcl_GetObjResult(interp);
|
resultPtr = Tcl_GetObjResult(interp);
|
#ifdef HAVE_TZSET
|
#ifdef HAVE_TZSET
|
/*
|
/*
|
* Some systems forgot to call tzset in localtime, make sure its done.
|
* Some systems forgot to call tzset in localtime, make sure its done.
|
*/
|
*/
|
static int calledTzset = 0;
|
static int calledTzset = 0;
|
|
|
if (!calledTzset) {
|
if (!calledTzset) {
|
tzset();
|
tzset();
|
calledTzset = 1;
|
calledTzset = 1;
|
}
|
}
|
#endif
|
#endif
|
|
|
#ifdef TCL_USE_TIMEZONE_VAR
|
#ifdef TCL_USE_TIMEZONE_VAR
|
/*
|
/*
|
* This is a horrible kludge for systems not having the timezone in
|
* This is a horrible kludge for systems not having the timezone in
|
* struct tm. No matter what was specified, they use the global time
|
* struct tm. No matter what was specified, they use the global time
|
* zone. (Thanks Solaris).
|
* zone. (Thanks Solaris).
|
*/
|
*/
|
if (useGMT) {
|
if (useGMT) {
|
char *varValue;
|
char *varValue;
|
|
|
varValue = Tcl_GetVar2(interp, "env", "TZ", TCL_GLOBAL_ONLY);
|
varValue = Tcl_GetVar2(interp, "env", "TZ", TCL_GLOBAL_ONLY);
|
if (varValue != NULL) {
|
if (varValue != NULL) {
|
savedTZEnv = strcpy(ckalloc(strlen(varValue) + 1), varValue);
|
savedTZEnv = strcpy(ckalloc(strlen(varValue) + 1), varValue);
|
} else {
|
} else {
|
savedTZEnv = NULL;
|
savedTZEnv = NULL;
|
}
|
}
|
Tcl_SetVar2(interp, "env", "TZ", "GMT", TCL_GLOBAL_ONLY);
|
Tcl_SetVar2(interp, "env", "TZ", "GMT", TCL_GLOBAL_ONLY);
|
savedTimeZone = timezone;
|
savedTimeZone = timezone;
|
timezone = 0;
|
timezone = 0;
|
tzset();
|
tzset();
|
}
|
}
|
#endif
|
#endif
|
|
|
timeDataPtr = TclpGetDate((time_t *) &clockVal, useGMT);
|
timeDataPtr = TclpGetDate((time_t *) &clockVal, useGMT);
|
|
|
/*
|
/*
|
* Make a guess at the upper limit on the substituted string size
|
* Make a guess at the upper limit on the substituted string size
|
* based on the number of percents in the string.
|
* based on the number of percents in the string.
|
*/
|
*/
|
|
|
for (bufSize = 1, p = format; *p != '\0'; p++) {
|
for (bufSize = 1, p = format; *p != '\0'; p++) {
|
if (*p == '%') {
|
if (*p == '%') {
|
bufSize += 40;
|
bufSize += 40;
|
} else {
|
} else {
|
bufSize++;
|
bufSize++;
|
}
|
}
|
}
|
}
|
Tcl_DStringInit(&buffer);
|
Tcl_DStringInit(&buffer);
|
Tcl_DStringSetLength(&buffer, bufSize);
|
Tcl_DStringSetLength(&buffer, bufSize);
|
|
|
if ((TclStrftime(buffer.string, (unsigned int) bufSize, format,
|
if ((TclStrftime(buffer.string, (unsigned int) bufSize, format,
|
timeDataPtr) == 0) && (*format != '\0')) {
|
timeDataPtr) == 0) && (*format != '\0')) {
|
Tcl_AppendStringsToObj(resultPtr, "bad format string \"",
|
Tcl_AppendStringsToObj(resultPtr, "bad format string \"",
|
format, "\"", (char *) NULL);
|
format, "\"", (char *) NULL);
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
|
|
#ifdef TCL_USE_TIMEZONE_VAR
|
#ifdef TCL_USE_TIMEZONE_VAR
|
if (useGMT) {
|
if (useGMT) {
|
if (savedTZEnv != NULL) {
|
if (savedTZEnv != NULL) {
|
Tcl_SetVar2(interp, "env", "TZ", savedTZEnv, TCL_GLOBAL_ONLY);
|
Tcl_SetVar2(interp, "env", "TZ", savedTZEnv, TCL_GLOBAL_ONLY);
|
ckfree(savedTZEnv);
|
ckfree(savedTZEnv);
|
} else {
|
} else {
|
Tcl_UnsetVar2(interp, "env", "TZ", TCL_GLOBAL_ONLY);
|
Tcl_UnsetVar2(interp, "env", "TZ", TCL_GLOBAL_ONLY);
|
}
|
}
|
timezone = savedTimeZone;
|
timezone = savedTimeZone;
|
tzset();
|
tzset();
|
}
|
}
|
#endif
|
#endif
|
|
|
Tcl_SetStringObj(resultPtr, buffer.string, -1);
|
Tcl_SetStringObj(resultPtr, buffer.string, -1);
|
Tcl_DStringFree(&buffer);
|
Tcl_DStringFree(&buffer);
|
return TCL_OK;
|
return TCL_OK;
|
}
|
}
|
|
|
|
|
