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https://github.com/k3s-io/k3s.git
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66 lines
1.5 KiB
Go
66 lines
1.5 KiB
Go
// +build !linux,!windows
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/*
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Copyright The containerd 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 fifo
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import (
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"syscall"
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"github.com/pkg/errors"
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)
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type handle struct {
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fn string
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dev uint64
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ino uint64
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}
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func getHandle(fn string) (*handle, error) {
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var stat syscall.Stat_t
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if err := syscall.Stat(fn, &stat); err != nil {
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return nil, errors.Wrapf(err, "failed to stat %v", fn)
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}
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h := &handle{
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fn: fn,
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dev: uint64(stat.Dev), //nolint: unconvert
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ino: uint64(stat.Ino), //nolint: unconvert
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}
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return h, nil
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}
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func (h *handle) Path() (string, error) {
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var stat syscall.Stat_t
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if err := syscall.Stat(h.fn, &stat); err != nil {
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return "", errors.Wrapf(err, "path %v could not be statted", h.fn)
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}
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if uint64(stat.Dev) != h.dev || uint64(stat.Ino) != h.ino { //nolint: unconvert
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return "", errors.Errorf("failed to verify handle %v/%v %v/%v for %v", stat.Dev, h.dev, stat.Ino, h.ino, h.fn)
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}
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return h.fn, nil
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}
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func (h *handle) Name() string {
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return h.fn
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}
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func (h *handle) Close() error {
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return nil
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}
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