576d2c8b2a
See https://github.com/davidbyttow/govips?tab=readme-ov-file#the-recommended-path-forward-vipsgen
81 lines
1.9 KiB
Go
81 lines
1.9 KiB
Go
/*
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Timelinize
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Copyright (c) 2013 Matthew Holt
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published
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by the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package tlzapp
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import (
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"os"
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"os/signal"
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"sync/atomic"
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"github.com/cshum/vipsgen/vips"
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"github.com/timelinize/timelinize/timeline"
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)
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// TrapSignals create signal handlers for all applicable signals for this system.
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func TrapSignals() {
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trapSignalsCrossPlatform()
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trapSignalsPosix()
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}
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// trapSignalsCrossPlatform captures SIGINT, which triggers forceful
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// shutdown that cleans up any network or local resources. A second
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// interrupt signal will exit the process immediately.
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func trapSignalsCrossPlatform() {
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go func() {
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sig := make(chan os.Signal, 1)
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signal.Notify(sig, os.Interrupt)
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for i := 0; true; i++ {
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<-sig
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if i > 0 {
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timeline.Log.Fatal("SIGINT: force quit")
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os.Exit(2) //nolint:mnd
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}
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timeline.Log.Warn("SIGINT: shutting down")
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go shutdown(1)
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}
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}()
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}
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// Shutdown shuts down this client process. It is a no-op
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// if the process is already exiting.
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func shutdown(exitCode int) {
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if !atomic.CompareAndSwapInt32(shuttingDown, 0, 1) {
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return
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}
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shutdownTimelines()
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vips.Shutdown()
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appMu.Lock()
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if app != nil {
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app.cancel()
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}
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appMu.Unlock()
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_ = timeline.Log.Sync()
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os.Exit(exitCode)
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}
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// shuttingDown is an atomic value which will be set
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// to 1 when the program is shutting down.
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var shuttingDown = new(int32)
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