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windows: add functions for priority class

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took const value from
https://docs.microsoft.com/en-us/windows/desktop/api/processthreadsapi/nf-processthreadsapi-setpriorityclass
https://docs.microsoft.com/en-us/windows/desktop/api/processthreadsapi/nf-processthreadsapi-getpriorityclass

Change-Id: I376bb8e1f5de8968177512857d60169cb7b7c776
Reviewed-on: https://go-review.googlesource.com/c/sys/+/179038
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Takuto Ikuta
2019-05-28 17:17:54 +09:00
committed by Alex Brainman
parent 3626398d77
commit 854af27f14
3 changed files with 41 additions and 0 deletions
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2
windows/syscall_windows.go
View File

@@ -258,6 +258,8 @@ func NewCallbackCDecl(fn interface{}) uintptr {
//sys TerminateJobObject(job Handle, exitCode uint32) (err error) = kernel32.TerminateJobObject
//sys SetErrorMode(mode uint32) (ret uint32) = kernel32.SetErrorMode
//sys ResumeThread(thread Handle) (ret uint32, err error) [failretval==0xffffffff] = kernel32.ResumeThread
//sys SetPriorityClass(process Handle, priorityClass uint32) (err error) = kernel32.SetPriorityClass
//sys GetPriorityClass(process Handle) (ret uint32, err error) = kernel32.GetPriorityClass
// Volume Management Functions
//sys DefineDosDevice(flags uint32, deviceName *uint16, targetPath *uint16) (err error) = DefineDosDeviceW

12
windows/types_windows.go
View File

@@ -408,6 +408,18 @@ const (
SEM_NOOPENFILEERRORBOX = 0x8000
)
const (
// Priority class.
ABOVE_NORMAL_PRIORITY_CLASS = 0x00008000
BELOW_NORMAL_PRIORITY_CLASS = 0x00004000
HIGH_PRIORITY_CLASS = 0x00000080
IDLE_PRIORITY_CLASS = 0x00000040
NORMAL_PRIORITY_CLASS = 0x00000020
PROCESS_MODE_BACKGROUND_BEGIN = 0x00100000
PROCESS_MODE_BACKGROUND_END = 0x00200000
REALTIME_PRIORITY_CLASS = 0x00000100
)
var (
OID_PKIX_KP_SERVER_AUTH = []byte("1.3.6.1.5.5.7.3.1\x00")
OID_SERVER_GATED_CRYPTO = []byte("1.3.6.1.4.1.311.10.3.3\x00")

27
windows/zsyscall_windows.go
View File

@@ -196,6 +196,8 @@ var (
procTerminateJobObject = modkernel32.NewProc("TerminateJobObject")
procSetErrorMode = modkernel32.NewProc("SetErrorMode")
procResumeThread = modkernel32.NewProc("ResumeThread")
procSetPriorityClass = modkernel32.NewProc("SetPriorityClass")
procGetPriorityClass = modkernel32.NewProc("GetPriorityClass")
procDefineDosDeviceW = modkernel32.NewProc("DefineDosDeviceW")
procDeleteVolumeMountPointW = modkernel32.NewProc("DeleteVolumeMountPointW")
procFindFirstVolumeW = modkernel32.NewProc("FindFirstVolumeW")
@@ -2105,6 +2107,31 @@ func ResumeThread(thread Handle) (ret uint32, err error) {
return
}
func SetPriorityClass(process Handle, priorityClass uint32) (err error) {
r1, _, e1 := syscall.Syscall(procSetPriorityClass.Addr(), 2, uintptr(process), uintptr(priorityClass), 0)
if r1 == 0 {
if e1 != 0 {
err = errnoErr(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func GetPriorityClass(process Handle) (ret uint32, err error) {
r0, _, e1 := syscall.Syscall(procGetPriorityClass.Addr(), 1, uintptr(process), 0, 0)
ret = uint32(r0)
if ret == 0 {
if e1 != 0 {
err = errnoErr(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func DefineDosDevice(flags uint32, deviceName *uint16, targetPath *uint16) (err error) {
r1, _, e1 := syscall.Syscall(procDefineDosDeviceW.Addr(), 3, uintptr(flags), uintptr(unsafe.Pointer(deviceName)), uintptr(unsafe.Pointer(targetPath)))
if r1 == 0 {