Gecko [ 167.86.127.34 ]

Name	Size	Permission
exec	[ DIR ]	drwxr-xr-x
signal	[ DIR ]	drwxr-xr-x
user	[ DIR ]	drwxr-xr-x
dir.go	1.99 KB	-rw-r--r--
dir_darwin.go	1.94 KB	-rw-r--r--
dir_plan9.go	1.53 KB	-rw-r--r--
dir_unix.go	1.54 KB	-rw-r--r--
dir_windows.go	1.43 KB	-rw-r--r--
env.go	3.84 KB	-rw-r--r--
env_test.go	3.87 KB	-rw-r--r--
env_unix_test.go	1.27 KB	-rw-r--r--
error.go	4 KB	-rw-r--r--
error_errno.go	246 B	-rw-r--r--
error_plan9.go	234 B	-rw-r--r--
error_posix.go	568 B	-rw-r--r--
error_test.go	4.81 KB	-rw-r--r--
error_unix_test.go	1.52 KB	-rw-r--r--
error_windows_test.go	1.71 KB	-rw-r--r--
example_test.go	2.89 KB	-rw-r--r--
exec.go	5.52 KB	-rw-r--r--
exec_plan9.go	3.29 KB	-rw-r--r--
exec_posix.go	3.22 KB	-rw-r--r--
exec_unix.go	2.12 KB	-rw-r--r--
exec_windows.go	4.88 KB	-rw-r--r--
executable.go	774 B	-rw-r--r--
executable_darwin.go	613 B	-rw-r--r--
executable_freebsd.go	881 B	-rw-r--r--
executable_path.go	2.3 KB	-rw-r--r--
executable_plan9.go	399 B	-rw-r--r--
executable_procfs.go	868 B	-rw-r--r--
executable_solaris.go	695 B	-rw-r--r--
executable_test.go	1.99 KB	-rw-r--r--
executable_windows.go	641 B	-rw-r--r--
export_test.go	286 B	-rw-r--r--
export_unix_test.go	275 B	-rw-r--r--
export_windows_test.go	312 B	-rw-r--r--
fifo_test.go	1.98 KB	-rw-r--r--
file.go	17.69 KB	-rw-r--r--
file_plan9.go	14.12 KB	-rw-r--r--
file_posix.go	4.88 KB	-rw-r--r--
file_unix.go	12.07 KB	-rw-r--r--
file_windows.go	14.19 KB	-rw-r--r--
getwd.go	2.61 KB	-rw-r--r--
getwd_darwin.go	317 B	-rw-r--r--
os_test.go	58.09 KB	-rw-r--r--
os_unix_test.go	8.45 KB	-rw-r--r--
os_windows_test.go	29.5 KB	-rw-r--r--
path.go	1.99 KB	-rw-r--r--
path_plan9.go	497 B	-rw-r--r--
path_test.go	3.08 KB	-rw-r--r--
path_unix.go	1.59 KB	-rw-r--r--
path_windows.go	5.75 KB	-rw-r--r--
path_windows_test.go	2.46 KB	-rw-r--r--
pipe2_bsd.go	617 B	-rw-r--r--
pipe_bsd.go	800 B	-rw-r--r--
pipe_linux.go	1010 B	-rw-r--r--
pipe_test.go	10.32 KB	-rw-r--r--
proc.go	1.84 KB	-rw-r--r--
rawconn.go	992 B	-rw-r--r--
rawconn_test.go	1.13 KB	-rw-r--r--
removeall_at.go	4.72 KB	-rw-r--r--
removeall_noat.go	3.17 KB	-rw-r--r--
removeall_test.go	10.7 KB	-rw-r--r--
stat.go	733 B	-rw-r--r--
stat_aix.go	1.18 KB	-rw-r--r--
stat_darwin.go	1.19 KB	-rw-r--r--
stat_dragonfly.go	1.15 KB	-rw-r--r--
stat_freebsd.go	1.17 KB	-rw-r--r--
stat_js.go	1.2 KB	-rw-r--r--
stat_linux.go	1.16 KB	-rw-r--r--
stat_netbsd.go	1.16 KB	-rw-r--r--
stat_openbsd.go	1.15 KB	-rw-r--r--
stat_plan9.go	2.25 KB	-rw-r--r--
stat_solaris.go	1.15 KB	-rw-r--r--
stat_test.go	6.28 KB	-rw-r--r--
stat_unix.go	1.14 KB	-rw-r--r--
stat_windows.go	3.48 KB	-rw-r--r--
sticky_bsd.go	388 B	-rw-r--r--
sticky_notbsd.go	363 B	-rw-r--r--
str.go	729 B	-rw-r--r--
sys.go	294 B	-rw-r--r--
sys_aix.go	682 B	-rw-r--r--
sys_bsd.go	435 B	-rw-r--r--
sys_js.go	309 B	-rw-r--r--
sys_linux.go	1.04 KB	-rw-r--r--
sys_plan9.go	453 B	-rw-r--r--
sys_solaris.go	265 B	-rw-r--r--
sys_unix.go	545 B	-rw-r--r--
sys_windows.go	874 B	-rw-r--r--
timeout_test.go	13.28 KB	-rw-r--r--
types.go	4.18 KB	-rw-r--r--
types_plan9.go	823 B	-rw-r--r--
types_unix.go	782 B	-rw-r--r--
types_windows.go	6.27 KB	-rw-r--r--
wait_unimp.go	585 B	-rw-r--r--
wait_wait6.go	1.29 KB	-rw-r--r--
wait_waitid.go	1.33 KB	-rw-r--r--

Code Editor : exec_windows.go

// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package os

import (
	"errors"
	"internal/syscall/windows"
	"runtime"
	"sync/atomic"
	"syscall"
	"time"
)

func (p *Process) wait() (ps *ProcessState, err error) {
	handle := atomic.LoadUintptr(&p.handle)
	s, e := syscall.WaitForSingleObject(syscall.Handle(handle), syscall.INFINITE)
	switch s {
	case syscall.WAIT_OBJECT_0:
		break
	case syscall.WAIT_FAILED:
		return nil, NewSyscallError("WaitForSingleObject", e)
	default:
		return nil, errors.New("os: unexpected result from WaitForSingleObject")
	}
	var ec uint32
	e = syscall.GetExitCodeProcess(syscall.Handle(handle), &ec)
	if e != nil {
		return nil, NewSyscallError("GetExitCodeProcess", e)
	}
	var u syscall.Rusage
	e = syscall.GetProcessTimes(syscall.Handle(handle), &u.CreationTime, &u.ExitTime, &u.KernelTime, &u.UserTime)
	if e != nil {
		return nil, NewSyscallError("GetProcessTimes", e)
	}
	p.setDone()
	// NOTE(brainman): It seems that sometimes process is not dead
	// when WaitForSingleObject returns. But we do not know any
	// other way to wait for it. Sleeping for a while seems to do
	// the trick sometimes.
	// See https://golang.org/issue/25965 for details.
	defer time.Sleep(5 * time.Millisecond)
	defer p.Release()
	return &ProcessState{p.Pid, syscall.WaitStatus{ExitCode: ec}, &u}, nil
}

func terminateProcess(pid, exitcode int) error {
	h, e := syscall.OpenProcess(syscall.PROCESS_TERMINATE, false, uint32(pid))
	if e != nil {
		return NewSyscallError("OpenProcess", e)
	}
	defer syscall.CloseHandle(h)
	e = syscall.TerminateProcess(h, uint32(exitcode))
	return NewSyscallError("TerminateProcess", e)
}

func (p *Process) signal(sig Signal) error {
	handle := atomic.LoadUintptr(&p.handle)
	if handle == uintptr(syscall.InvalidHandle) {
		return syscall.EINVAL
	}
	if p.done() {
		return errors.New("os: process already finished")
	}
	if sig == Kill {
		err := terminateProcess(p.Pid, 1)
		runtime.KeepAlive(p)
		return err
	}
	// TODO(rsc): Handle Interrupt too?
	return syscall.Errno(syscall.EWINDOWS)
}

func (p *Process) release() error {
	handle := atomic.LoadUintptr(&p.handle)
	if handle == uintptr(syscall.InvalidHandle) {
		return syscall.EINVAL
	}
	e := syscall.CloseHandle(syscall.Handle(handle))
	if e != nil {
		return NewSyscallError("CloseHandle", e)
	}
	atomic.StoreUintptr(&p.handle, uintptr(syscall.InvalidHandle))
	// no need for a finalizer anymore
	runtime.SetFinalizer(p, nil)
	return nil
}

func findProcess(pid int) (p *Process, err error) {
	const da = syscall.STANDARD_RIGHTS_READ |
		syscall.PROCESS_QUERY_INFORMATION | syscall.SYNCHRONIZE
	h, e := syscall.OpenProcess(da, false, uint32(pid))
	if e != nil {
		return nil, NewSyscallError("OpenProcess", e)
	}
	return newProcess(pid, uintptr(h)), nil
}

func init() {
	cmd := windows.UTF16PtrToString(syscall.GetCommandLine(), 0xffff)
	if len(cmd) == 0 {
		arg0, _ := Executable()
		Args = []string{arg0}
	} else {
		Args = commandLineToArgv(cmd)
	}
}

// appendBSBytes appends n '\\' bytes to b and returns the resulting slice.
func appendBSBytes(b []byte, n int) []byte {
	for ; n > 0; n-- {
		b = append(b, '\\')
	}
	return b
}

// readNextArg splits command line string cmd into next
// argument and command line remainder.
func readNextArg(cmd string) (arg []byte, rest string) {
	var b []byte
	var inquote bool
	var nslash int
	for ; len(cmd) > 0; cmd = cmd[1:] {
		c := cmd[0]
		switch c {
		case ' ', '\t':
			if !inquote {
				return appendBSBytes(b, nslash), cmd[1:]
			}
		case '"':
			b = appendBSBytes(b, nslash/2)
			if nslash%2 == 0 {
				// use "Prior to 2008" rule from
				// http://daviddeley.com/autohotkey/parameters/parameters.htm
				// section 5.2 to deal with double double quotes
				if inquote && len(cmd) > 1 && cmd[1] == '"' {
					b = append(b, c)
					cmd = cmd[1:]
				}
				inquote = !inquote
			} else {
				b = append(b, c)
			}
			nslash = 0
			continue
		case '\\':
			nslash++
			continue
		}
		b = appendBSBytes(b, nslash)
		nslash = 0
		b = append(b, c)
	}
	return appendBSBytes(b, nslash), ""
}

// commandLineToArgv splits a command line into individual argument
// strings, following the Windows conventions documented
// at http://daviddeley.com/autohotkey/parameters/parameters.htm#WINARGV
func commandLineToArgv(cmd string) []string {
	var args []string
	for len(cmd) > 0 {
		if cmd[0] == ' ' || cmd[0] == '\t' {
			cmd = cmd[1:]
			continue
		}
		var arg []byte
		arg, cmd = readNextArg(cmd)
		args = append(args, string(arg))
	}
	return args
}

func ftToDuration(ft *syscall.Filetime) time.Duration {
	n := int64(ft.HighDateTime)<<32 + int64(ft.LowDateTime) // in 100-nanosecond intervals
	return time.Duration(n*100) * time.Nanosecond
}

func (p *ProcessState) userTime() time.Duration {
	return ftToDuration(&p.rusage.UserTime)
}

func (p *ProcessState) systemTime() time.Duration {
	return ftToDuration(&p.rusage.KernelTime)
}

${this.title}

Code Editor : exec_windows.go