From 6be6c584a2e8031375fd3950a9b7bd9a867af5ee Mon Sep 17 00:00:00 2001 From: Ayman Bagabas Date: Wed, 17 Sep 2025 16:05:17 +0000 Subject: [PATCH] windows: add FlushConsoleInputBuffer and GetNumberOfConsoleInputEvents This adds syscall wrappers for FlushConsoleInputBuffer and GetNumberOfConsoleInputEvents on Windows. Change-Id: I2365aebc42a57f83cfc951e10520270e1f3e0606 GitHub-Last-Rev: 1f711a5f3c2b09b6bc74160f0fc7c54a0247be14 GitHub-Pull-Request: golang/sys#264 Reviewed-on: https://go-review.googlesource.com/c/sys/+/704715 Reviewed-by: Mark Freeman Auto-Submit: Sean Liao Reviewed-by: Quim Muntal LUCI-TryBot-Result: Go LUCI Reviewed-by: Michael Knyszek --- windows/syscall_windows.go | 2 ++ windows/zsyscall_windows.go | 18 ++++++++++++++++++ 2 files changed, 20 insertions(+) diff --git a/windows/syscall_windows.go b/windows/syscall_windows.go index 640f6b15..bd513373 100644 --- a/windows/syscall_windows.go +++ b/windows/syscall_windows.go @@ -321,6 +321,8 @@ func NewCallbackCDecl(fn interface{}) uintptr { //sys SetConsoleOutputCP(cp uint32) (err error) = kernel32.SetConsoleOutputCP //sys WriteConsole(console Handle, buf *uint16, towrite uint32, written *uint32, reserved *byte) (err error) = kernel32.WriteConsoleW //sys ReadConsole(console Handle, buf *uint16, toread uint32, read *uint32, inputControl *byte) (err error) = kernel32.ReadConsoleW +//sys GetNumberOfConsoleInputEvents(console Handle, numevents *uint32) (err error) = kernel32.GetNumberOfConsoleInputEvents +//sys FlushConsoleInputBuffer(console Handle) (err error) = kernel32.FlushConsoleInputBuffer //sys resizePseudoConsole(pconsole Handle, size uint32) (hr error) = kernel32.ResizePseudoConsole //sys CreateToolhelp32Snapshot(flags uint32, processId uint32) (handle Handle, err error) [failretval==InvalidHandle] = kernel32.CreateToolhelp32Snapshot //sys Module32First(snapshot Handle, moduleEntry *ModuleEntry32) (err error) = kernel32.Module32FirstW diff --git a/windows/zsyscall_windows.go b/windows/zsyscall_windows.go index 641a5f4b..426151a0 100644 --- a/windows/zsyscall_windows.go +++ b/windows/zsyscall_windows.go @@ -238,6 +238,7 @@ var ( procFindResourceW = modkernel32.NewProc("FindResourceW") procFindVolumeClose = modkernel32.NewProc("FindVolumeClose") procFindVolumeMountPointClose = modkernel32.NewProc("FindVolumeMountPointClose") + procFlushConsoleInputBuffer = modkernel32.NewProc("FlushConsoleInputBuffer") procFlushFileBuffers = modkernel32.NewProc("FlushFileBuffers") procFlushViewOfFile = modkernel32.NewProc("FlushViewOfFile") procFormatMessageW = modkernel32.NewProc("FormatMessageW") @@ -284,6 +285,7 @@ var ( procGetNamedPipeHandleStateW = modkernel32.NewProc("GetNamedPipeHandleStateW") procGetNamedPipeInfo = modkernel32.NewProc("GetNamedPipeInfo") procGetNamedPipeServerProcessId = modkernel32.NewProc("GetNamedPipeServerProcessId") + procGetNumberOfConsoleInputEvents = modkernel32.NewProc("GetNumberOfConsoleInputEvents") procGetOverlappedResult = modkernel32.NewProc("GetOverlappedResult") procGetPriorityClass = modkernel32.NewProc("GetPriorityClass") procGetProcAddress = modkernel32.NewProc("GetProcAddress") @@ -2111,6 +2113,14 @@ func FindVolumeMountPointClose(findVolumeMountPoint Handle) (err error) { return } +func FlushConsoleInputBuffer(console Handle) (err error) { + r1, _, e1 := syscall.SyscallN(procFlushConsoleInputBuffer.Addr(), uintptr(console)) + if r1 == 0 { + err = errnoErr(e1) + } + return +} + func FlushFileBuffers(handle Handle) (err error) { r1, _, e1 := syscall.SyscallN(procFlushFileBuffers.Addr(), uintptr(handle)) if r1 == 0 { @@ -2481,6 +2491,14 @@ func GetNamedPipeServerProcessId(pipe Handle, serverProcessID *uint32) (err erro return } +func GetNumberOfConsoleInputEvents(console Handle, numevents *uint32) (err error) { + r1, _, e1 := syscall.SyscallN(procGetNumberOfConsoleInputEvents.Addr(), uintptr(console), uintptr(unsafe.Pointer(numevents))) + if r1 == 0 { + err = errnoErr(e1) + } + return +} + func GetOverlappedResult(handle Handle, overlapped *Overlapped, done *uint32, wait bool) (err error) { var _p0 uint32 if wait {