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windows: add support for CommTimeouts

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CommTimeouts allows the user to set the timeout on Comm devices:

docs.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-setcommtimeouts
docs.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-getcommtimeouts

Change-Id: I756dc93b1b01412a496c6eccab22c9ff7e5f4b83
Reviewed-on: https://go-review.googlesource.com/c/sys/+/290209
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Trust: Alex Brainman <alex.brainman@gmail.com>
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
TryBot-Result: Go Bot <gobot@golang.org>
This commit is contained in:
Tobias Kohlbau
2021-02-06 08:58:28 +01:00
committed by Alex Brainman
parent b0d1d43c01
commit 479acdf4ea
3 changed files with 28 additions and 0 deletions
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2
windows/syscall_windows.go
View File

@@ -344,6 +344,8 @@ func NewCallbackCDecl(fn interface{}) uintptr {
//sys SetProcessPriorityBoost(process Handle, disable bool) (err error) = kernel32.SetProcessPriorityBoost
//sys GetProcessWorkingSetSizeEx(hProcess Handle, lpMinimumWorkingSetSize *uintptr, lpMaximumWorkingSetSize *uintptr, flags *uint32)
//sys SetProcessWorkingSetSizeEx(hProcess Handle, dwMinimumWorkingSetSize uintptr, dwMaximumWorkingSetSize uintptr, flags uint32) (err error)
//sys GetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error)
//sys SetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error)
// Volume Management Functions
//sys DefineDosDevice(flags uint32, deviceName *uint16, targetPath *uint16) (err error) = DefineDosDeviceW

8
windows/types_windows.go
View File

@@ -2260,3 +2260,11 @@ const (
// REG_NOTIFY_THREAD_AGNOSTIC indicates that the lifetime of the registration must not be tied to the lifetime of the thread issuing the RegNotifyChangeKeyValue call. Note: This flag value is only supported in Windows 8 and later.
REG_NOTIFY_THREAD_AGNOSTIC = 0x10000000
)
type CommTimeouts struct {
ReadIntervalTimeout uint32
ReadTotalTimeoutMultiplier uint32
ReadTotalTimeoutConstant uint32
WriteTotalTimeoutMultiplier uint32
WriteTotalTimeoutConstant uint32
}

18
windows/zsyscall_windows.go
View File

@@ -212,6 +212,7 @@ var (
procFreeLibrary = modkernel32.NewProc("FreeLibrary")
procGenerateConsoleCtrlEvent = modkernel32.NewProc("GenerateConsoleCtrlEvent")
procGetACP = modkernel32.NewProc("GetACP")
procGetCommTimeouts = modkernel32.NewProc("GetCommTimeouts")
procGetCommandLineW = modkernel32.NewProc("GetCommandLineW")
procGetComputerNameExW = modkernel32.NewProc("GetComputerNameExW")
procGetComputerNameW = modkernel32.NewProc("GetComputerNameW")
@@ -296,6 +297,7 @@ var (
procRemoveDirectoryW = modkernel32.NewProc("RemoveDirectoryW")
procResetEvent = modkernel32.NewProc("ResetEvent")
procResumeThread = modkernel32.NewProc("ResumeThread")
procSetCommTimeouts = modkernel32.NewProc("SetCommTimeouts")
procSetConsoleCursorPosition = modkernel32.NewProc("SetConsoleCursorPosition")
procSetConsoleMode = modkernel32.NewProc("SetConsoleMode")
procSetCurrentDirectoryW = modkernel32.NewProc("SetCurrentDirectoryW")
@@ -1787,6 +1789,14 @@ func GetACP() (acp uint32) {
return
}
func GetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error) {
r1, _, e1 := syscall.Syscall(procGetCommTimeouts.Addr(), 2, uintptr(handle), uintptr(unsafe.Pointer(timeouts)), 0)
if r1 == 0 {
err = errnoErr(e1)
}
return
}
func GetCommandLine() (cmd *uint16) {
r0, _, _ := syscall.Syscall(procGetCommandLineW.Addr(), 0, 0, 0, 0)
cmd = (*uint16)(unsafe.Pointer(r0))
@@ -2537,6 +2547,14 @@ func ResumeThread(thread Handle) (ret uint32, err error) {
return
}
func SetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error) {
r1, _, e1 := syscall.Syscall(procSetCommTimeouts.Addr(), 2, uintptr(handle), uintptr(unsafe.Pointer(timeouts)), 0)
if r1 == 0 {
err = errnoErr(e1)
}
return
}
func setConsoleCursorPosition(console Handle, position uint32) (err error) {
r1, _, e1 := syscall.Syscall(procSetConsoleCursorPosition.Addr(), 2, uintptr(console), uintptr(position), 0)
if r1 == 0 {