/usr/share/gocode/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/events_windows.go is in golang-github-fsouza-go-dockerclient-dev 0.0+git20150905-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// This file implements syscalls for Win32 events which are not implemented
// in golang.
import (
"syscall"
"unsafe"
)
const (
EVENT_ALL_ACCESS = 0x1F0003
EVENT_MODIFY_STATUS = 0x0002
)
var (
procCreateEvent = modkernel32.NewProc("CreateEventW")
procOpenEvent = modkernel32.NewProc("OpenEventW")
procSetEvent = modkernel32.NewProc("SetEvent")
procResetEvent = modkernel32.NewProc("ResetEvent")
procPulseEvent = modkernel32.NewProc("PulseEvent")
)
func CreateEvent(eventAttributes *syscall.SecurityAttributes, manualReset bool, initialState bool, name string) (handle syscall.Handle, err error) {
namep, _ := syscall.UTF16PtrFromString(name)
var _p1 uint32 = 0
if manualReset {
_p1 = 1
}
var _p2 uint32 = 0
if initialState {
_p2 = 1
}
r0, _, e1 := procCreateEvent.Call(uintptr(unsafe.Pointer(eventAttributes)), uintptr(_p1), uintptr(_p2), uintptr(unsafe.Pointer(namep)))
use(unsafe.Pointer(namep))
handle = syscall.Handle(r0)
if handle == syscall.InvalidHandle {
err = e1
}
return
}
func OpenEvent(desiredAccess uint32, inheritHandle bool, name string) (handle syscall.Handle, err error) {
namep, _ := syscall.UTF16PtrFromString(name)
var _p1 uint32 = 0
if inheritHandle {
_p1 = 1
}
r0, _, e1 := procOpenEvent.Call(uintptr(desiredAccess), uintptr(_p1), uintptr(unsafe.Pointer(namep)))
use(unsafe.Pointer(namep))
handle = syscall.Handle(r0)
if handle == syscall.InvalidHandle {
err = e1
}
return
}
func SetEvent(handle syscall.Handle) (err error) {
return setResetPulse(handle, procSetEvent)
}
func ResetEvent(handle syscall.Handle) (err error) {
return setResetPulse(handle, procResetEvent)
}
func PulseEvent(handle syscall.Handle) (err error) {
return setResetPulse(handle, procPulseEvent)
}
func setResetPulse(handle syscall.Handle, proc *syscall.LazyProc) (err error) {
r0, _, _ := proc.Call(uintptr(handle))
if r0 != 0 {
err = syscall.Errno(r0)
}
return
}
var temp unsafe.Pointer
// use ensures a variable is kept alive without the GC freeing while still needed
func use(p unsafe.Pointer) {
temp = p
}
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