summaryrefslogtreecommitdiff
path: root/vendor/github.com/Microsoft/go-winio/fileinfo.go
diff options
context:
space:
mode:
authorMatthew Heon <matthew.heon@gmail.com>2017-11-01 11:24:59 -0400
committerMatthew Heon <matthew.heon@gmail.com>2017-11-01 11:24:59 -0400
commita031b83a09a8628435317a03f199cdc18b78262f (patch)
treebc017a96769ce6de33745b8b0b1304ccf38e9df0 /vendor/github.com/Microsoft/go-winio/fileinfo.go
parent2b74391cd5281f6fdf391ff8ad50fd1490f6bf89 (diff)
downloadpodman-a031b83a09a8628435317a03f199cdc18b78262f.tar.gz
podman-a031b83a09a8628435317a03f199cdc18b78262f.tar.bz2
podman-a031b83a09a8628435317a03f199cdc18b78262f.zip
Initial checkin from CRI-O repo
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
Diffstat (limited to 'vendor/github.com/Microsoft/go-winio/fileinfo.go')
-rw-r--r--vendor/github.com/Microsoft/go-winio/fileinfo.go60
1 files changed, 60 insertions, 0 deletions
diff --git a/vendor/github.com/Microsoft/go-winio/fileinfo.go b/vendor/github.com/Microsoft/go-winio/fileinfo.go
new file mode 100644
index 000000000..b1d60abb8
--- /dev/null
+++ b/vendor/github.com/Microsoft/go-winio/fileinfo.go
@@ -0,0 +1,60 @@
+// +build windows
+
+package winio
+
+import (
+ "os"
+ "runtime"
+ "syscall"
+ "unsafe"
+)
+
+//sys getFileInformationByHandleEx(h syscall.Handle, class uint32, buffer *byte, size uint32) (err error) = GetFileInformationByHandleEx
+//sys setFileInformationByHandle(h syscall.Handle, class uint32, buffer *byte, size uint32) (err error) = SetFileInformationByHandle
+
+const (
+ fileBasicInfo = 0
+ fileIDInfo = 0x12
+)
+
+// FileBasicInfo contains file access time and file attributes information.
+type FileBasicInfo struct {
+ CreationTime, LastAccessTime, LastWriteTime, ChangeTime syscall.Filetime
+ FileAttributes uintptr // includes padding
+}
+
+// GetFileBasicInfo retrieves times and attributes for a file.
+func GetFileBasicInfo(f *os.File) (*FileBasicInfo, error) {
+ bi := &FileBasicInfo{}
+ if err := getFileInformationByHandleEx(syscall.Handle(f.Fd()), fileBasicInfo, (*byte)(unsafe.Pointer(bi)), uint32(unsafe.Sizeof(*bi))); err != nil {
+ return nil, &os.PathError{Op: "GetFileInformationByHandleEx", Path: f.Name(), Err: err}
+ }
+ runtime.KeepAlive(f)
+ return bi, nil
+}
+
+// SetFileBasicInfo sets times and attributes for a file.
+func SetFileBasicInfo(f *os.File, bi *FileBasicInfo) error {
+ if err := setFileInformationByHandle(syscall.Handle(f.Fd()), fileBasicInfo, (*byte)(unsafe.Pointer(bi)), uint32(unsafe.Sizeof(*bi))); err != nil {
+ return &os.PathError{Op: "SetFileInformationByHandle", Path: f.Name(), Err: err}
+ }
+ runtime.KeepAlive(f)
+ return nil
+}
+
+// FileIDInfo contains the volume serial number and file ID for a file. This pair should be
+// unique on a system.
+type FileIDInfo struct {
+ VolumeSerialNumber uint64
+ FileID [16]byte
+}
+
+// GetFileID retrieves the unique (volume, file ID) pair for a file.
+func GetFileID(f *os.File) (*FileIDInfo, error) {
+ fileID := &FileIDInfo{}
+ if err := getFileInformationByHandleEx(syscall.Handle(f.Fd()), fileIDInfo, (*byte)(unsafe.Pointer(fileID)), uint32(unsafe.Sizeof(*fileID))); err != nil {
+ return nil, &os.PathError{Op: "GetFileInformationByHandleEx", Path: f.Name(), Err: err}
+ }
+ runtime.KeepAlive(f)
+ return fileID, nil
+}