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@ -392,6 +392,11 @@ srs_error_t SrsSignalManager::start()
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sa.sa_flags = 0;
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sigaction(SRS_SIGNAL_RELOAD, &sa, NULL);
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sa.sa_handler = SrsSignalManager::sig_catcher;
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sigemptyset(&sa.sa_mask);
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sa.sa_flags = 0;
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sigaction(SRS_SIGNAL_FAST_QUIT, &sa, NULL);
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sa.sa_handler = SrsSignalManager::sig_catcher;
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sigemptyset(&sa.sa_mask);
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sa.sa_flags = 0;
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@ -407,8 +412,8 @@ srs_error_t SrsSignalManager::start()
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sa.sa_flags = 0;
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sigaction(SRS_SIGNAL_REOPEN_LOG, &sa, NULL);
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srs_trace("signal installed, reload=%d, reopen=%d, grace_quit=%d",
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SRS_SIGNAL_RELOAD, SRS_SIGNAL_REOPEN_LOG, SRS_SIGNAL_GRACEFULLY_QUIT);
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srs_trace("signal installed, reload=%d, reopen=%d, fast_quit=%d, grace_quit=%d",
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SRS_SIGNAL_RELOAD, SRS_SIGNAL_REOPEN_LOG, SRS_SIGNAL_FAST_QUIT, SRS_SIGNAL_GRACEFULLY_QUIT);
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if ((err = trd->start()) != srs_success) {
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return srs_error_wrap(err, "signal manager");
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@ -465,6 +470,7 @@ SrsServer::SrsServer()
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signal_reload = false;
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signal_persistence_config = false;
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signal_gmc_stop = false;
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signal_fast_quit = false;
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signal_gracefully_quit = false;
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pid_fd = -1;
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@ -533,6 +539,48 @@ void SrsServer::dispose()
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#endif
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}
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void SrsServer::gracefully_dispose()
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{
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_srs_config->unsubscribe(this);
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// Always wait for a while to start.
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srs_usleep(_srs_config->get_grace_start_wait());
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srs_trace("start wait for %dms", srsu2msi(_srs_config->get_grace_start_wait()));
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// prevent fresh clients.
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close_listeners(SrsListenerRtmpStream);
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close_listeners(SrsListenerHttpApi);
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close_listeners(SrsListenerHttpStream);
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close_listeners(SrsListenerMpegTsOverUdp);
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close_listeners(SrsListenerRtsp);
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close_listeners(SrsListenerFlv);
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// Fast stop to notify FFMPEG to quit, wait for a while then fast kill.
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ingester->stop();
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// Wait for connections to quit.
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// While gracefully quiting, user can requires SRS to fast quit.
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int wait_step = 1;
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while (!conns.empty() && !signal_fast_quit) {
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for (int i = 0; i < wait_step && !conns.empty() && !signal_fast_quit; i++) {
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srs_usleep(1000 * SRS_UTIME_MILLISECONDS);
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}
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wait_step = (wait_step * 2) % 33;
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srs_trace("wait for %d conns to quit", conns.size());
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}
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// dispose the source for hls and dvr.
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_srs_sources->dispose();
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#ifdef SRS_AUTO_MEM_WATCH
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srs_memory_report();
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#endif
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srs_usleep(_srs_config->get_grace_final_wait());
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srs_trace("final wait for %dms", srsu2msi(_srs_config->get_grace_final_wait()));
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}
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srs_error_t SrsServer::initialize(ISrsServerCycle* ch)
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{
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srs_error_t err = srs_success;
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@ -802,10 +850,25 @@ srs_error_t SrsServer::cycle()
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srs_warn("sleep a long time for system st-threads to cleanup.");
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srs_usleep(3 * 1000 * 1000);
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srs_warn("system quit");
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#else
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// normally quit with neccessary cleanup by dispose().
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return err;
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#endif
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// quit normally.
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srs_warn("main cycle terminated, system quit normally.");
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// fast quit, do some essential cleanup.
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if (signal_fast_quit) {
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dispose();
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srs_trace("srs disposed");
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}
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// gracefully quit, do carefully cleanup.
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if (signal_gracefully_quit) {
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gracefully_dispose();
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srs_trace("srs gracefully quit");
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}
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srs_trace("srs terminated");
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// for valgrind to detect.
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@ -813,7 +876,6 @@ srs_error_t SrsServer::cycle()
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srs_freep(_srs_log);
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exit(0);
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#endif
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return err;
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}
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@ -858,8 +920,21 @@ void SrsServer::on_signal(int signo)
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#endif
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}
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if ((signo == SIGINT || signo == SRS_SIGNAL_GRACEFULLY_QUIT) && !signal_gracefully_quit) {
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srs_trace("sig=%d, user terminate program, gracefully quit", signo);
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// For K8S, force to gracefully quit for gray release or canary.
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// @see https://github.com/ossrs/srs/issues/1595#issuecomment-587473037
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if (signo == SRS_SIGNAL_FAST_QUIT && _srs_config->is_force_grace_quit()) {
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srs_trace("force gracefully quit, signo=%d", signo);
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signo = SRS_SIGNAL_GRACEFULLY_QUIT;
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}
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if ((signo == SIGINT || signo == SRS_SIGNAL_FAST_QUIT) && !signal_fast_quit) {
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srs_trace("sig=%d, user terminate program, fast quit", signo);
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signal_fast_quit = true;
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return;
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}
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if (signo == SRS_SIGNAL_GRACEFULLY_QUIT && !signal_gracefully_quit) {
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srs_trace("sig=%d, user start gracefully quit", signo);
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signal_gracefully_quit = true;
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return;
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}
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@ -904,9 +979,9 @@ srs_error_t SrsServer::do_cycle()
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return srs_error_new(ERROR_ASPROCESS_PPID, "asprocess ppid changed from %d to %d", ppid, ::getppid());
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}
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// gracefully quit for SIGINT or SIGTERM.
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if (signal_gracefully_quit) {
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srs_trace("cleanup for gracefully terminate.");
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// gracefully quit for SIGINT or SIGTERM or SIGQUIT.
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if (signal_fast_quit || signal_gracefully_quit) {
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srs_trace("cleanup for quit signal fast=%d, grace=%d", signal_fast_quit, signal_gracefully_quit);
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return err;
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}
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xiaozhihong
5 years ago