9f95b7b18c
Currently, there are some unit tests that are failing on Windows due to various reasons: - paths not properly joined (filepath.Join should be used). - Proxy Mode IPVS not supported on Windows. - DeadlineExceeded can occur when trying to read data from an UDP socket. This can be used to detect whether the port was closed or not. - In Windows, with long file name support enabled, file names can have up to 32,767 characters. In this case, the error windows.ERROR_FILENAME_EXCED_RANGE will be encountered instead. - files not closed, which means that they cannot be removed / renamed. - time.Now() is not as precise on Windows, which means that 2 consecutive calls may return the same timestamp. - path.Base() will return the same path. filepath.Base() should be used instead. - path.Join() will always join the paths with a / instead of the OS specific separator. filepath.Join() should be used instead.
118 lines
2.8 KiB
Go
118 lines
2.8 KiB
Go
//go:build windows
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// +build windows
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/*
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Copyright 2014 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package fs
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import (
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"os"
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"path/filepath"
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"syscall"
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"unsafe"
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"golang.org/x/sys/windows"
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)
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var (
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modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
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procGetDiskFreeSpaceEx = modkernel32.NewProc("GetDiskFreeSpaceExW")
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)
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type UsageInfo struct {
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Bytes int64
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Inodes int64
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}
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// Info returns (available bytes, byte capacity, byte usage, total inodes, inodes free, inode usage, error)
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// for the filesystem that path resides upon.
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func Info(path string) (int64, int64, int64, int64, int64, int64, error) {
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var freeBytesAvailable, totalNumberOfBytes, totalNumberOfFreeBytes int64
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var err error
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// The equivalent linux call supports calls against files but the syscall for windows
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// fails for files with error code: The directory name is invalid. (#99173)
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// https://docs.microsoft.com/en-us/windows/win32/debug/system-error-codes--0-499-
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// By always ensuring the directory path we meet all uses cases of this function
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path = filepath.Dir(path)
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ret, _, err := syscall.Syscall6(
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procGetDiskFreeSpaceEx.Addr(),
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4,
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uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(path))),
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uintptr(unsafe.Pointer(&freeBytesAvailable)),
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uintptr(unsafe.Pointer(&totalNumberOfBytes)),
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uintptr(unsafe.Pointer(&totalNumberOfFreeBytes)),
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0,
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0,
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)
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if ret == 0 {
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return 0, 0, 0, 0, 0, 0, err
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}
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return freeBytesAvailable, totalNumberOfBytes, totalNumberOfBytes - freeBytesAvailable, 0, 0, 0, nil
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}
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// DiskUsage gets disk usage of specified path.
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func DiskUsage(path string) (UsageInfo, error) {
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var usage UsageInfo
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info, err := os.Lstat(path)
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if err != nil {
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return usage, err
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}
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usage.Bytes, err = diskUsage(path, info)
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return usage, err
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}
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func diskUsage(currPath string, info os.FileInfo) (int64, error) {
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var size int64
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if info.Mode()&os.ModeSymlink != 0 {
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return size, nil
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}
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size += info.Size()
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if !info.IsDir() {
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return size, nil
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}
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dir, err := os.Open(currPath)
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if err != nil {
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return size, err
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}
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defer dir.Close()
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files, err := dir.Readdir(-1)
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if err != nil {
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return size, err
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}
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for _, file := range files {
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if file.IsDir() {
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s, err := diskUsage(filepath.Join(currPath, file.Name()), file)
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if err != nil {
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return size, err
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}
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size += s
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} else {
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size += file.Size()
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}
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}
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return size, nil
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}
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