1 files changed, 52 insertions, 0 deletions
diff --git a/libgo/go/os/exec_windows.go b/libgo/go/os/exec_windows.go
new file mode 100644
index 00000000000..ae8ffeab2e9
--- /dev/null
+++ b/libgo/go/os/exec_windows.go
@@ -0,0 +1,52 @@
+// 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 (
+	"runtime"
+	"syscall"
+)
+
+func (p *Process) Wait(options int) (w *Waitmsg, err Error) {
+	s, e := syscall.WaitForSingleObject(int32(p.handle), syscall.INFINITE)
+	switch s {
+	case syscall.WAIT_OBJECT_0:
+		break
+	case syscall.WAIT_FAILED:
+		return nil, NewSyscallError("WaitForSingleObject", e)
+	default:
+		return nil, ErrorString("os: unexpected result from WaitForSingleObject")
+	}
+	var ec uint32
+	e = syscall.GetExitCodeProcess(uint32(p.handle), &ec)
+	if e != 0 {
+		return nil, NewSyscallError("GetExitCodeProcess", e)
+	}
+	return &Waitmsg{p.Pid, syscall.WaitStatus{s, ec}, new(syscall.Rusage)}, nil
+}
+
+func (p *Process) Release() Error {
+	if p.handle == -1 {
+		return EINVAL
+	}
+	e := syscall.CloseHandle(int32(p.handle))
+	if e != 0 {
+		return NewSyscallError("CloseHandle", e)
+	}
+	p.handle = -1
+	// 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 != 0 {
+		return nil, NewSyscallError("OpenProcess", e)
+	}
+	return newProcess(pid, int(h)), nil
+}