diff options
Diffstat (limited to 'vendor/github.com/go-git/go-billy/v5/osfs/os_windows.go')
-rw-r--r-- | vendor/github.com/go-git/go-billy/v5/osfs/os_windows.go | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/vendor/github.com/go-git/go-billy/v5/osfs/os_windows.go b/vendor/github.com/go-git/go-billy/v5/osfs/os_windows.go new file mode 100644 index 000000000..8f5caeb0e --- /dev/null +++ b/vendor/github.com/go-git/go-billy/v5/osfs/os_windows.go @@ -0,0 +1,61 @@ +// +build windows + +package osfs + +import ( + "os" + "runtime" + "unsafe" + + "golang.org/x/sys/windows" +) + +type fileInfo struct { + os.FileInfo + name string +} + +func (fi *fileInfo) Name() string { + return fi.name +} + +var ( + kernel32DLL = windows.NewLazySystemDLL("kernel32.dll") + lockFileExProc = kernel32DLL.NewProc("LockFileEx") + unlockFileProc = kernel32DLL.NewProc("UnlockFile") +) + +const ( + lockfileExclusiveLock = 0x2 +) + +func (f *file) Lock() error { + f.m.Lock() + defer f.m.Unlock() + + var overlapped windows.Overlapped + // err is always non-nil as per sys/windows semantics. + ret, _, err := lockFileExProc.Call(f.File.Fd(), lockfileExclusiveLock, 0, 0xFFFFFFFF, 0, + uintptr(unsafe.Pointer(&overlapped))) + runtime.KeepAlive(&overlapped) + if ret == 0 { + return err + } + return nil +} + +func (f *file) Unlock() error { + f.m.Lock() + defer f.m.Unlock() + + // err is always non-nil as per sys/windows semantics. + ret, _, err := unlockFileProc.Call(f.File.Fd(), 0, 0, 0xFFFFFFFF, 0) + if ret == 0 { + return err + } + return nil +} + +func rename(from, to string) error { + return os.Rename(from, to) +} |