tidb storage_windows 源码
tidb storage_windows 代码
文件路径：/br/pkg/lightning/common/storage_windows.go
// Copyright 2019 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 windows
// TODO: Deduplicate this implementation with DM!
package common
import (
"syscall"
"unsafe"
"github.com/pingcap/errors"
"github.com/pingcap/failpoint"
)
var (
kernel32 = syscall.MustLoadDLL("kernel32.dll")
getDiskFreeSpaceExW = kernel32.MustFindProc("GetDiskFreeSpaceExW")
)
// GetStorageSize gets storage's capacity and available size
func GetStorageSize(dir string) (size StorageSize, err error) {
failpoint.Inject("GetStorageSize", func(val failpoint.Value) {
injectedSize := val.(int)
failpoint.Return(StorageSize{Capacity: uint64(injectedSize), Available: uint64(injectedSize)}, nil)
})
r, _, e := getDiskFreeSpaceExW.Call(
uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(dir))),
uintptr(unsafe.Pointer(&size.Available)),
uintptr(unsafe.Pointer(&size.Capacity)),
0,
)
if r == 0 {
err = errors.Annotatef(e, "cannot get disk capacity at %s", dir)
}
return
}
// SameDisk is used to check dir1 and dir2 in the same disk.
func SameDisk(dir1 string, dir2 string) (bool, error) {
// FIXME
return false, nil
}
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