windows: add missing event functions

Add CreateEventEx, OpenEvent, ResetEvent and PulseEvent.

Also change eventAttrs to use the local definition of the
SecurityAttributes type, not the one from syscall.

GetConsoleScreenBufferInfo is also changed by re-running 'go generate'
to pass a pointer to ConsoleScreenBufferInfo (instead of a pointer to
pointer).

Change-Id: I08dff4360186b04c55fd0362e31920f38206157b
Reviewed-on: https://go-review.googlesource.com/56110
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>

windows/syscall_windows.go

@@ -188,8 +188,12 @@ func NewCallbackCDecl(fn interface{}) uintptr
 //sys	CreateSymbolicLink(symlinkfilename *uint16, targetfilename *uint16, flags uint32) (err error) [failretval&0xff==0] = CreateSymbolicLinkW
 //sys	CreateHardLink(filename *uint16, existingfilename *uint16, reserved uintptr) (err error) [failretval&0xff==0] = CreateHardLinkW
 //sys	GetCurrentThreadId() (id uint32)
-//sys	CreateEvent(eventAttrs *syscall.SecurityAttributes, manualReset uint32, initialState uint32, name *uint16) (handle Handle, err error) = kernel32.CreateEventW
+//sys	CreateEvent(eventAttrs *SecurityAttributes, manualReset uint32, initialState uint32, name *uint16) (handle Handle, err error) = kernel32.CreateEventW
+//sys	CreateEventEx(eventAttrs *SecurityAttributes, name *uint16, flags uint32, desiredAccess uint32) (handle Handle, err error) = kernel32.CreateEventExW
+//sys	OpenEvent(desiredAccess uint32, inheritHandle bool, name *uint16) (handle Handle, err error) = kernel32.OpenEventW
 //sys	SetEvent(event Handle) (err error) = kernel32.SetEvent
+//sys	ResetEvent(event Handle) (err error) = kernel32.ResetEvent
+//sys	PulseEvent(event Handle) (err error) = kernel32.PulseEvent
 
 // syscall interface implementation for other packages
 

windows/zsyscall_windows.go

@@ -173,7 +173,11 @@ var (
 	procCreateHardLinkW                    = modkernel32.NewProc("CreateHardLinkW")
 	procGetCurrentThreadId                 = modkernel32.NewProc("GetCurrentThreadId")
 	procCreateEventW                       = modkernel32.NewProc("CreateEventW")
+	procCreateEventExW                     = modkernel32.NewProc("CreateEventExW")
+	procOpenEventW                         = modkernel32.NewProc("OpenEventW")
 	procSetEvent                           = modkernel32.NewProc("SetEvent")
+	procResetEvent                         = modkernel32.NewProc("ResetEvent")
+	procPulseEvent                         = modkernel32.NewProc("PulseEvent")
 	procWSAStartup                         = modws2_32.NewProc("WSAStartup")
 	procWSACleanup                         = modws2_32.NewProc("WSACleanup")
 	procWSAIoctl                           = modws2_32.NewProc("WSAIoctl")
@@ -1644,7 +1648,7 @@ func SetConsoleMode(console Handle, mode uint32) (err error) {
 }
 
 func GetConsoleScreenBufferInfo(console Handle, info *ConsoleScreenBufferInfo) (err error) {
-	r1, _, e1 := syscall.Syscall(procGetConsoleScreenBufferInfo.Addr(), 2, uintptr(console), uintptr(unsafe.Pointer(&info)), 0)
+	r1, _, e1 := syscall.Syscall(procGetConsoleScreenBufferInfo.Addr(), 2, uintptr(console), uintptr(unsafe.Pointer(info)), 0)
 	if r1 == 0 {
 		if e1 != 0 {
 			err = errnoErr(e1)
@@ -1758,7 +1762,7 @@ func GetCurrentThreadId() (id uint32) {
 	return
 }
 
-func CreateEvent(eventAttrs *syscall.SecurityAttributes, manualReset uint32, initialState uint32, name *uint16) (handle Handle, err error) {
+func CreateEvent(eventAttrs *SecurityAttributes, manualReset uint32, initialState uint32, name *uint16) (handle Handle, err error) {
 	r0, _, e1 := syscall.Syscall6(procCreateEventW.Addr(), 4, uintptr(unsafe.Pointer(eventAttrs)), uintptr(manualReset), uintptr(initialState), uintptr(unsafe.Pointer(name)), 0, 0)
 	handle = Handle(r0)
 	if handle == 0 {
@@ -1771,6 +1775,38 @@ func CreateEvent(eventAttrs *syscall.SecurityAttributes, manualReset uint32, ini
 	return
 }
 
+func CreateEventEx(eventAttrs *SecurityAttributes, name *uint16, flags uint32, desiredAccess uint32) (handle Handle, err error) {
+	r0, _, e1 := syscall.Syscall6(procCreateEventExW.Addr(), 4, uintptr(unsafe.Pointer(eventAttrs)), uintptr(unsafe.Pointer(name)), uintptr(flags), uintptr(desiredAccess), 0, 0)
+	handle = Handle(r0)
+	if handle == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func OpenEvent(desiredAccess uint32, inheritHandle bool, name *uint16) (handle Handle, err error) {
+	var _p0 uint32
+	if inheritHandle {
+		_p0 = 1
+	} else {
+		_p0 = 0
+	}
+	r0, _, e1 := syscall.Syscall(procOpenEventW.Addr(), 3, uintptr(desiredAccess), uintptr(_p0), uintptr(unsafe.Pointer(name)))
+	handle = Handle(r0)
+	if handle == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
 func SetEvent(event Handle) (err error) {
 	r1, _, e1 := syscall.Syscall(procSetEvent.Addr(), 1, uintptr(event), 0, 0)
 	if r1 == 0 {
@@ -1783,6 +1819,30 @@ func SetEvent(event Handle) (err error) {
 	return
 }
 
+func ResetEvent(event Handle) (err error) {
+	r1, _, e1 := syscall.Syscall(procResetEvent.Addr(), 1, uintptr(event), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func PulseEvent(event Handle) (err error) {
+	r1, _, e1 := syscall.Syscall(procPulseEvent.Addr(), 1, uintptr(event), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
 func WSAStartup(verreq uint32, data *WSAData) (sockerr error) {
 	r0, _, _ := syscall.Syscall(procWSAStartup.Addr(), 2, uintptr(verreq), uintptr(unsafe.Pointer(data)), 0)
 	if r0 != 0 {