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windows: add GetFileInformationByHandleEx function

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Change-Id: I950762ef59c665d027641b4410ac30697edad22d
Reviewed-on: https://go-review.googlesource.com/c/sys/+/171939
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:
James Nugent
2019-04-14 19:23:05 +00:00
committed by Alex Brainman
parent 9773273309
commit 16da32be82
2 changed files with 14 additions and 0 deletions
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1
windows/syscall_windows.go
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@@ -146,6 +146,7 @@ func NewCallbackCDecl(fn interface{}) uintptr {
//sys findNextFile1(handle Handle, data *win32finddata1) (err error) = FindNextFileW
//sys FindClose(handle Handle) (err error)
//sys GetFileInformationByHandle(handle Handle, data *ByHandleFileInformation) (err error)
//sys GetFileInformationByHandleEx(handle Handle, class uint32, outBuffer *byte, outBufferLen uint32) (err error)
//sys GetCurrentDirectory(buflen uint32, buf *uint16) (n uint32, err error) = GetCurrentDirectoryW
//sys SetCurrentDirectory(path *uint16) (err error) = SetCurrentDirectoryW
//sys CreateDirectory(path *uint16, sa *SecurityAttributes) (err error) = CreateDirectoryW

13
windows/zsyscall_windows.go
View File

@@ -86,6 +86,7 @@ var (
procFindNextFileW = modkernel32.NewProc("FindNextFileW")
procFindClose = modkernel32.NewProc("FindClose")
procGetFileInformationByHandle = modkernel32.NewProc("GetFileInformationByHandle")
procGetFileInformationByHandleEx = modkernel32.NewProc("GetFileInformationByHandleEx")
procGetCurrentDirectoryW = modkernel32.NewProc("GetCurrentDirectoryW")
procSetCurrentDirectoryW = modkernel32.NewProc("SetCurrentDirectoryW")
procCreateDirectoryW = modkernel32.NewProc("CreateDirectoryW")
@@ -772,6 +773,18 @@ func GetFileInformationByHandle(handle Handle, data *ByHandleFileInformation) (e
return
}
func GetFileInformationByHandleEx(handle Handle, class uint32, outBuffer *byte, outBufferLen uint32) (err error) {
r1, _, e1 := syscall.Syscall6(procGetFileInformationByHandleEx.Addr(), 4, uintptr(handle), uintptr(class), uintptr(unsafe.Pointer(outBuffer)), uintptr(outBufferLen), 0, 0)
if r1 == 0 {
if e1 != 0 {
err = errnoErr(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func GetCurrentDirectory(buflen uint32, buf *uint16) (n uint32, err error) {
r0, _, e1 := syscall.Syscall(procGetCurrentDirectoryW.Addr(), 2, uintptr(buflen), uintptr(unsafe.Pointer(buf)), 0)
n = uint32(r0)