golang robustio 代码
文件路径：/src/cmd/go/internal/robustio/robustio.go
/ Copyright 2019 The Go Authors. All rights reserved.
/ Use of this source code is governed by a BSD-style
/ license that can be found in the LICENSE file.
/ Package robustio wraps I/O functions that are prone to failure on Windows,
/ transparently retrying errors up to an arbitrary timeout.
/
/ Errors are classified heuristically and retries are bounded, so the functions
/ in this package do not completely eliminate spurious errors. However, they do
/ significantly reduce the rate of failure in practice.
/
/ If so, the error will likely wrap one of:
/ The functions in this package do not completely eliminate spurious errors,
/ but substantially reduce their rate of occurrence in practice.
package robustio
/ Rename is like os.Rename, but on Windows retries errors that may occur if the
/ file is concurrently read or overwritten.
/
/ (See golang.org/issue/31247 and golang.org/issue/32188.)
func Rename(oldpath, newpath string) error {
return rename(oldpath, newpath)
}
/ ReadFile is like os.ReadFile, but on Windows retries errors that may
/ occur if the file is concurrently replaced.
/
/ (See golang.org/issue/31247 and golang.org/issue/32188.)
func ReadFile(filename string) ([]byte, error) {
return readFile(filename)
}
/ RemoveAll is like os.RemoveAll, but on Windows retries errors that may occur
/ if an executable file in the directory has recently been executed.
/
/ (See golang.org/issue/19491.)
func RemoveAll(path string) error {
return removeAll(path)
}
/ IsEphemeralError reports whether err is one of the errors that the functions
/ in this package attempt to mitigate.
/
/ Errors considered ephemeral include:
/ - syscall.ERROR_ACCESS_DENIED
/ - syscall.ERROR_FILE_NOT_FOUND
/ - internal/syscall/windows.ERROR_SHARING_VIOLATION
/
/ This set may be expanded in the future; programs must not rely on the
/ non-ephemerality of any given error.
func IsEphemeralError(err error) bool {
return isEphemeralError(err)
}