tidb sys_posix 代码
文件路径：/util/sys/storage/sys_posix.go
/ Copyright 2020 PingCAP, Inc.
/
/ Licensed under the Apache License, Version 2.0 (the "License");
/ you may not use this file except in compliance with the License.
/ You may obtain a copy of the License at
/
/ http://www.apache.org/licenses/LICENSE-2.0
/
/ Unless required by applicable law or agreed to in writing, software
/ distributed under the License is distributed on an "AS IS" BASIS,
/ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
/ See the License for the specific language governing permissions and
/ limitations under the License.
/go:build linux || darwin
package storage
import "syscall"
/ GetTargetDirectoryCapacity get the capacity (bytes) of directory
func GetTargetDirectoryCapacity(path string) (uint64, error) {
var stat syscall.Statfs_t
err := syscall.Statfs(path, &stat)
if err != nil {
return 0, err
}
c := stat.Bavail * uint64(stat.Bsize)
return c, nil
}