mirror of https://github.com/pulumi/pulumi.git
50 lines
1.6 KiB
Go
50 lines
1.6 KiB
Go
// Copyright 2016-2023, Pulumi Corporation.
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//
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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 && !js
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// +build !windows,!js
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package cmdutil
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import (
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"errors"
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"golang.org/x/sys/unix"
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)
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// shutdownProcessGroup sends a SIGINT to the given process group.
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// It returns immediately, and does not wait for the process to exit.
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//
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// A Windows version of this function is defined in term_windows.go.
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func shutdownProcessGroup(pid int) error {
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// Processes spawned after calling RegisterProcessGroup
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// will be part of the same process group as the parent.
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//
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// -pid means send the signal to the entire process group.
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//
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// See: https://linux.die.net/man/2/kill
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return unix.Kill(-pid, unix.SIGINT)
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}
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// isWaitAlreadyExited returns true
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// if the error is due to the process already having exited.
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//
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// On Linux, this is indicated by ESRCH or ECHILD.
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//
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// A Windows version of this function is defined in term_windows.go.
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func isWaitAlreadyExited(err error) bool {
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return errors.Is(err, unix.ESRCH) || // no such process
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errors.Is(err, unix.ECHILD) // no child processes
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}
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