| 1 |
747 |
jeremybenn |
// Copyright 2009 The Go Authors. All rights reserved.
|
| 2 |
|
|
// Use of this source code is governed by a BSD-style
|
| 3 |
|
|
// license that can be found in the LICENSE file.
|
| 4 |
|
|
|
| 5 |
|
|
package os
|
| 6 |
|
|
|
| 7 |
|
|
import (
|
| 8 |
|
|
"errors"
|
| 9 |
|
|
"runtime"
|
| 10 |
|
|
"syscall"
|
| 11 |
|
|
"unsafe"
|
| 12 |
|
|
)
|
| 13 |
|
|
|
| 14 |
|
|
// Wait waits for the Process to exit or stop, and then returns a
|
| 15 |
|
|
// Waitmsg describing its status and an error, if any.
|
| 16 |
|
|
func (p *Process) Wait(options int) (w *Waitmsg, err error) {
|
| 17 |
|
|
s, e := syscall.WaitForSingleObject(syscall.Handle(p.handle), syscall.INFINITE)
|
| 18 |
|
|
switch s {
|
| 19 |
|
|
case syscall.WAIT_OBJECT_0:
|
| 20 |
|
|
break
|
| 21 |
|
|
case syscall.WAIT_FAILED:
|
| 22 |
|
|
return nil, NewSyscallError("WaitForSingleObject", e)
|
| 23 |
|
|
default:
|
| 24 |
|
|
return nil, errors.New("os: unexpected result from WaitForSingleObject")
|
| 25 |
|
|
}
|
| 26 |
|
|
var ec uint32
|
| 27 |
|
|
e = syscall.GetExitCodeProcess(syscall.Handle(p.handle), &ec)
|
| 28 |
|
|
if e != nil {
|
| 29 |
|
|
return nil, NewSyscallError("GetExitCodeProcess", e)
|
| 30 |
|
|
}
|
| 31 |
|
|
p.done = true
|
| 32 |
|
|
return &Waitmsg{p.Pid, syscall.WaitStatus{Status: s, ExitCode: ec}, new(syscall.Rusage)}, nil
|
| 33 |
|
|
}
|
| 34 |
|
|
|
| 35 |
|
|
// Signal sends a signal to the Process.
|
| 36 |
|
|
func (p *Process) Signal(sig Signal) error {
|
| 37 |
|
|
if p.done {
|
| 38 |
|
|
return errors.New("os: process already finished")
|
| 39 |
|
|
}
|
| 40 |
|
|
if us, ok := sig.(UnixSignal); ok && us == syscall.SIGKILL {
|
| 41 |
|
|
e := syscall.TerminateProcess(syscall.Handle(p.handle), 1)
|
| 42 |
|
|
return NewSyscallError("TerminateProcess", e)
|
| 43 |
|
|
}
|
| 44 |
|
|
return syscall.Errno(syscall.EWINDOWS)
|
| 45 |
|
|
}
|
| 46 |
|
|
|
| 47 |
|
|
// Release releases any resources associated with the Process.
|
| 48 |
|
|
func (p *Process) Release() error {
|
| 49 |
|
|
if p.handle == uintptr(syscall.InvalidHandle) {
|
| 50 |
|
|
return EINVAL
|
| 51 |
|
|
}
|
| 52 |
|
|
e := syscall.CloseHandle(syscall.Handle(p.handle))
|
| 53 |
|
|
if e != nil {
|
| 54 |
|
|
return NewSyscallError("CloseHandle", e)
|
| 55 |
|
|
}
|
| 56 |
|
|
p.handle = uintptr(syscall.InvalidHandle)
|
| 57 |
|
|
// no need for a finalizer anymore
|
| 58 |
|
|
runtime.SetFinalizer(p, nil)
|
| 59 |
|
|
return nil
|
| 60 |
|
|
}
|
| 61 |
|
|
|
| 62 |
|
|
func findProcess(pid int) (p *Process, err error) {
|
| 63 |
|
|
const da = syscall.STANDARD_RIGHTS_READ |
|
| 64 |
|
|
syscall.PROCESS_QUERY_INFORMATION | syscall.SYNCHRONIZE
|
| 65 |
|
|
h, e := syscall.OpenProcess(da, false, uint32(pid))
|
| 66 |
|
|
if e != nil {
|
| 67 |
|
|
return nil, NewSyscallError("OpenProcess", e)
|
| 68 |
|
|
}
|
| 69 |
|
|
return newProcess(pid, uintptr(h)), nil
|
| 70 |
|
|
}
|
| 71 |
|
|
|
| 72 |
|
|
func init() {
|
| 73 |
|
|
var argc int32
|
| 74 |
|
|
cmd := syscall.GetCommandLine()
|
| 75 |
|
|
argv, e := syscall.CommandLineToArgv(cmd, &argc)
|
| 76 |
|
|
if e != nil {
|
| 77 |
|
|
return
|
| 78 |
|
|
}
|
| 79 |
|
|
defer syscall.LocalFree(syscall.Handle(uintptr(unsafe.Pointer(argv))))
|
| 80 |
|
|
Args = make([]string, argc)
|
| 81 |
|
|
for i, v := range (*argv)[:argc] {
|
| 82 |
|
|
Args[i] = string(syscall.UTF16ToString((*v)[:]))
|
| 83 |
|
|
}
|
| 84 |
|
|
}
|
