mirror of
https://github.com/minio/minio.git
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95bf4a57b6
Create new code paths for multiple subsystems in the code. This will make maintaing this easier later. Also introduce bugLogIf() for errors that should not happen in the first place.
102 lines
2.7 KiB
Go
102 lines
2.7 KiB
Go
// Copyright (c) 2015-2021 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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//
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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 by
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// 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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//
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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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//
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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 <http://www.gnu.org/licenses/>.
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package cmd
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import (
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"context"
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"errors"
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"net/http"
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"os"
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"strings"
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"github.com/coreos/go-systemd/v22/daemon"
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"github.com/minio/minio/internal/logger"
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)
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func handleSignals() {
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// Custom exit function
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exit := func(success bool) {
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// If global profiler is set stop before we exit.
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globalProfilerMu.Lock()
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defer globalProfilerMu.Unlock()
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for _, p := range globalProfiler {
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p.Stop()
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}
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if success {
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os.Exit(0)
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}
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os.Exit(1)
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}
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stopProcess := func() bool {
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// send signal to various go-routines that they need to quit.
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cancelGlobalContext()
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if httpServer := newHTTPServerFn(); httpServer != nil {
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if err := httpServer.Shutdown(); err != nil && !errors.Is(err, http.ErrServerClosed) {
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shutdownLogIf(context.Background(), err)
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}
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}
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if objAPI := newObjectLayerFn(); objAPI != nil {
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shutdownLogIf(context.Background(), objAPI.Shutdown(context.Background()))
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}
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if srv := newConsoleServerFn(); srv != nil {
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shutdownLogIf(context.Background(), srv.Shutdown())
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}
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if globalEventNotifier != nil {
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globalEventNotifier.RemoveAllBucketTargets()
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}
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return true
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}
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for {
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select {
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case err := <-globalHTTPServerErrorCh:
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shutdownLogIf(context.Background(), err)
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exit(stopProcess())
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case osSignal := <-globalOSSignalCh:
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logger.Info("Exiting on signal: %s", strings.ToUpper(osSignal.String()))
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daemon.SdNotify(false, daemon.SdNotifyStopping)
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exit(stopProcess())
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case signal := <-globalServiceSignalCh:
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switch signal {
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case serviceRestart:
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logger.Info("Restarting on service signal")
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daemon.SdNotify(false, daemon.SdNotifyReloading)
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stop := stopProcess()
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rerr := restartProcess()
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if rerr == nil {
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daemon.SdNotify(false, daemon.SdNotifyReady)
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}
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shutdownLogIf(context.Background(), rerr)
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exit(stop && rerr == nil)
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case serviceStop:
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logger.Info("Stopping on service signal")
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daemon.SdNotify(false, daemon.SdNotifyStopping)
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exit(stopProcess())
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}
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}
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}
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}
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