34 lines
1008 B
Go
34 lines
1008 B
Go
// Copyright 2026 Alibaba Group
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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//go:build !windows
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package helpers
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import (
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"errors"
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"os"
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"syscall"
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)
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// processAlive reports whether pid refers to a live process. A permission
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// error from the Unix signal-0 probe still proves that the process exists.
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func processAlive(pid int) bool {
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if pid <= 0 {
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return false
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}
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proc, _ := os.FindProcess(pid)
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err := proc.Signal(syscall.Signal(0))
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return err == nil || errors.Is(err, syscall.EPERM)
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}
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