Hulk did something

[bytom/vapor.git] / vendor / github.com / syndtr / goleveldb / leveldb / storage / file_storage_solaris.go

diff --git a/vendor/github.com/syndtr/goleveldb/leveldb/storage/file_storage_solaris.go b/vendor/github.com/syndtr/goleveldb/leveldb/storage/file_storage_solaris.go
new file mode 100644 (file)
index 0000000..79901ee
--- /dev/null
+++ b/vendor/github.com/syndtr/goleveldb/leveldb/storage/file_storage_solaris.go
@@ -0,0 +1,81 @@
+// Copyright (c) 2012, Suryandaru Triandana <syndtr@gmail.com>
+// All rights reserved.
+//
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// +build solaris
+
+package storage
+
+import (
+       "os"
+       "syscall"
+)
+
+type unixFileLock struct {
+       f *os.File
+}
+
+func (fl *unixFileLock) release() error {
+       if err := setFileLock(fl.f, false, false); err != nil {
+               return err
+       }
+       return fl.f.Close()
+}
+
+func newFileLock(path string, readOnly bool) (fl fileLock, err error) {
+       var flag int
+       if readOnly {
+               flag = os.O_RDONLY
+       } else {
+               flag = os.O_RDWR
+       }
+       f, err := os.OpenFile(path, flag, 0)
+       if os.IsNotExist(err) {
+               f, err = os.OpenFile(path, flag|os.O_CREATE, 0644)
+       }
+       if err != nil {
+               return
+       }
+       err = setFileLock(f, readOnly, true)
+       if err != nil {
+               f.Close()
+               return
+       }
+       fl = &unixFileLock{f: f}
+       return
+}
+
+func setFileLock(f *os.File, readOnly, lock bool) error {
+       flock := syscall.Flock_t{
+               Type:   syscall.F_UNLCK,
+               Start:  0,
+               Len:    0,
+               Whence: 1,
+       }
+       if lock {
+               if readOnly {
+                       flock.Type = syscall.F_RDLCK
+               } else {
+                       flock.Type = syscall.F_WRLCK
+               }
+       }
+       return syscall.FcntlFlock(f.Fd(), syscall.F_SETLK, &flock)
+}
+
+func rename(oldpath, newpath string) error {
+       return os.Rename(oldpath, newpath)
+}
+
+func syncDir(name string) error {
+       f, err := os.Open(name)
+       if err != nil {
+               return err
+       }
+       defer f.Close()
+       if err := f.Sync(); err != nil {
+               return err
+       }
+       return nil
+}