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33 lines
1.0 KiB
Go
33 lines
1.0 KiB
Go
// Copyright 2026 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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//go:build unix
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package process
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import (
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"os/exec"
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"syscall"
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"gitea.dev/modules/util"
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)
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func setSysProcAttribute(cmd *exec.Cmd) {
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// When Gitea runs SubProcessA -> SubProcessB and SubProcessA gets killed by context cancel,
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// use process group to make sure the sub processes can be killed and reaped instead of leaving defunct(zombie) processes.
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cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
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}
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func (c *Cmd) onCancel() error {
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if c.onCancelUserFunc != nil {
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if err := c.onCancelUserFunc(); err != nil {
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return err
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}
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}
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sig := util.Iif(c.termGraceful, syscall.SIGTERM, syscall.SIGKILL)
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// kill the whole process group
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// ATTENTION: do not access PID after Wait or in other goroutine, it will just cause PID reuse data-race.
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// There is no easy solution to implement "first SIGTERM then SIGKILL" in a safe way, only one signal can be sent to the process group.
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return syscall.Kill(-c.Process.Pid, sig)
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}
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