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runtime: minor Windows cleanup

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Change-Id: I9a8081ef1109469e9577c642156aa635188d8954
Reviewed-on: https://go-review.googlesource.com/21538
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
This commit is contained in:
Brad Fitzpatrick 2016-04-05 18:22:23 +00:00
parent cb284313f7
commit 8556c76f88
2 changed files with 10 additions and 14 deletions
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22
src/runtime/os1_windows.go
View File

@ -110,28 +110,24 @@ func asmstdcall(fn unsafe.Pointer)
var asmstdcallAddr unsafe.Pointer
func windowsFindfunc(name []byte, lib uintptr) stdFunction {
func windowsFindfunc(lib uintptr, name []byte) stdFunction {
if name[len(name)-1] != 0 {
throw("usage")
}
f := stdcall2(_GetProcAddress, lib, uintptr(unsafe.Pointer(&name[0])))
return stdFunction(unsafe.Pointer(f))
}
func loadOptionalSyscalls() {
var (
kernel32dll = []byte("kernel32.dll\000")
addVectoredContinueHandler = []byte("AddVectoredContinueHandler\000")
getQueuedCompletionStatusEx = []byte("GetQueuedCompletionStatusEx\000")
addDllDirectory = []byte("AddDllDirectory\000")
loadLibraryExW = []byte("LoadLibraryExW\000")
)
var kernel32dll = []byte("kernel32.dll\000")
k32 := stdcall1(_LoadLibraryA, uintptr(unsafe.Pointer(&kernel32dll[0])))
if k32 == 0 {
throw("kernel32.dll not found")
}
_AddDllDirectory = windowsFindfunc(addDllDirectory, k32)
_AddVectoredContinueHandler = windowsFindfunc(addVectoredContinueHandler, k32)
_GetQueuedCompletionStatusEx = windowsFindfunc(getQueuedCompletionStatusEx, k32)
_LoadLibraryExW = windowsFindfunc(loadLibraryExW, k32)
_AddDllDirectory = windowsFindfunc(k32, []byte("AddDllDirectory\000"))
_AddVectoredContinueHandler = windowsFindfunc(k32, []byte("AddVectoredContinueHandler\000"))
_GetQueuedCompletionStatusEx = windowsFindfunc(k32, []byte("GetQueuedCompletionStatusEx\000"))
_LoadLibraryExW = windowsFindfunc(k32, []byte("LoadLibraryExW\000"))
}
//go:nosplit

2
src/runtime/os_windows.go
View File

@ -10,7 +10,7 @@ type mOS struct {
waitsema uintptr // semaphore for parking on locks
}
type stdFunction *byte
type stdFunction unsafe.Pointer
//go:linkname os_sigpipe os.sigpipe
func os_sigpipe() {