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Lock free multipart backend implementation for FS (#5401)

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This commit is contained in:
Krishna Srinivas
2018-01-31 13:17:24 -08:00
committed by kannappanr
parent 018813b98f
commit 3b2486ebaf
17 changed files with 668 additions and 1215 deletions
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5
pkg/lock/lock_nix.go
View File

@@ -90,3 +90,8 @@ func TryLockedOpenFile(path string, flag int, perm os.FileMode) (*LockedFile, er
func LockedOpenFile(path string, flag int, perm os.FileMode) (*LockedFile, error) {
return lockedOpenFile(path, flag, perm, 0)
}
// Open - Call os.OpenFile
func Open(path string, flag int, perm os.FileMode) (*os.File, error) {
return os.OpenFile(path, flag, perm)
}

6
pkg/lock/lock_windows.go
View File

@@ -42,7 +42,7 @@ const (
// lockedOpenFile is an internal function.
func lockedOpenFile(path string, flag int, perm os.FileMode, lockType uint32) (*LockedFile, error) {
f, err := open(path, flag, perm)
f, err := Open(path, flag, perm)
if err != nil {
return nil, err
}
@@ -168,7 +168,7 @@ func fixLongPath(path string) string {
// perm param is ignored, on windows file perms/NT acls
// are not octet combinations. Providing access to NT
// acls is out of scope here.
func open(path string, flag int, perm os.FileMode) (*os.File, error) {
func Open(path string, flag int, perm os.FileMode) (*os.File, error) {
if path == "" {
return nil, syscall.ERROR_FILE_NOT_FOUND
}
@@ -190,6 +190,8 @@ func open(path string, flag int, perm os.FileMode) (*os.File, error) {
fallthrough
case syscall.O_WRONLY | syscall.O_CREAT:
access = syscall.GENERIC_READ | syscall.GENERIC_WRITE
case syscall.O_WRONLY | syscall.O_CREAT | syscall.O_APPEND:
access = syscall.FILE_APPEND_DATA
default:
return nil, fmt.Errorf("Unsupported flag (%d)", flag)
}