X-Git-Url: https://git.sesse.net/?p=cubemap;a=blobdiff_plain;f=main.cpp;h=eccf6d707b40b76ba7231af7dc32b9aec76c1865;hp=5ba79f95a6baa30cddd1d9f6c085274ff455f487;hb=7628375363e006e2c272f98117609e1595f8cd1a;hpb=5cc8cd703a637e276c2595953878fd9561592bfa diff --git a/main.cpp b/main.cpp index 5ba79f9..eccf6d7 100644 --- a/main.cpp +++ b/main.cpp @@ -9,7 +9,9 @@ #include #include #include +#include #include +#include #include #include #include @@ -37,6 +39,18 @@ ServerPool *servers = NULL; volatile bool hupped = false; volatile bool stopped = false; +namespace { + +struct OrderByConnectionTime { + bool operator() (const ClientProto &a, const ClientProto &b) const { + if (a.connect_time_sec() != b.connect_time_sec()) + return a.connect_time_sec() < b.connect_time_sec(); + return a.connect_time_nsec() < b.connect_time_nsec(); + } +}; + +} // namespace + struct InputWithRefcount { Input *input; int refcount; @@ -54,14 +68,14 @@ void do_nothing(int signum) { } -CubemapStateProto collect_state(const timeval &serialize_start, +CubemapStateProto collect_state(const timespec &serialize_start, const vector acceptors, const multimap inputs, ServerPool *servers) { CubemapStateProto state = servers->serialize(); // Fills streams() and clients(). state.set_serialize_start_sec(serialize_start.tv_sec); - state.set_serialize_start_usec(serialize_start.tv_usec); + state.set_serialize_start_usec(serialize_start.tv_nsec / 1000); for (size_t i = 0; i < acceptors.size(); ++i) { state.add_acceptors()->MergeFrom(acceptors[i]->serialize()); @@ -166,11 +180,13 @@ void create_streams(const Config &config, if (deserialized_urls.count(stream_config.url) == 0) { stream_index = servers->add_stream(stream_config.url, stream_config.backlog_size, + stream_config.prebuffering_bytes, Stream::Encoding(stream_config.encoding)); } else { stream_index = servers->lookup_stream_by_url(stream_config.url); assert(stream_index != -1); servers->set_backlog_size(stream_index, stream_config.backlog_size); + servers->set_prebuffering_bytes(stream_index, stream_config.prebuffering_bytes); servers->set_encoding(stream_index, Stream::Encoding(stream_config.encoding)); } @@ -201,7 +217,11 @@ void create_streams(const Config &config, // UDP streams. for (unsigned i = 0; i < config.udpstreams.size(); ++i) { const UDPStreamConfig &udpstream_config = config.udpstreams[i]; - int stream_index = servers->add_udpstream(udpstream_config.dst, udpstream_config.pacing_rate); + int stream_index = servers->add_udpstream( + udpstream_config.dst, + udpstream_config.pacing_rate, + udpstream_config.ttl, + udpstream_config.multicast_iface_index); string src = udpstream_config.src; if (!src.empty()) { @@ -229,7 +249,7 @@ void open_logs(const vector &log_destinations) start_logging(); } -bool dry_run_config(const std::string &argv0, const std::string &config_filename) +bool dry_run_config(const string &argv0, const string &config_filename) { char *argv0_copy = strdup(argv0.c_str()); char *config_filename_copy = strdup(config_filename.c_str()); @@ -371,7 +391,7 @@ start: find_deleted_streams(config, &deleted_urls); CubemapStateProto loaded_state; - struct timeval serialize_start; + timespec serialize_start; set deserialized_urls; map deserialized_acceptors; multimap inputs; // multimap due to older versions without deduplication. @@ -387,7 +407,7 @@ start: } serialize_start.tv_sec = loaded_state.serialize_start_sec(); - serialize_start.tv_usec = loaded_state.serialize_start_usec(); + serialize_start.tv_nsec = loaded_state.serialize_start_usec() * 1000ull; // Deserialize the streams. map stream_headers_for_url; // See below. @@ -424,7 +444,7 @@ start: // Deserialize the acceptors. for (int i = 0; i < loaded_state.acceptors_size(); ++i) { - sockaddr_in6 sin6 = ExtractAddressFromAcceptorProto(loaded_state.acceptors(i)); + sockaddr_in6 sin6 = extract_address_from_acceptor_proto(loaded_state.acceptors(i)); deserialized_acceptors.insert(make_pair( sin6, new Acceptor(loaded_state.acceptors(i)))); @@ -439,9 +459,33 @@ start: // Find all streams in the configuration file, create them, and connect to the inputs. create_streams(config, deserialized_urls, &inputs); vector acceptors = create_acceptors(config, &deserialized_acceptors); + + // Convert old-style timestamps to new-style timestamps for all clients; + // this simplifies the sort below. + { + timespec now_monotonic; + if (clock_gettime(CLOCK_MONOTONIC_COARSE, &now_monotonic) == -1) { + log(ERROR, "clock_gettime(CLOCK_MONOTONIC_COARSE) failed."); + exit(1); + } + long delta_sec = now_monotonic.tv_sec - time(NULL); + + for (int i = 0; i < loaded_state.clients_size(); ++i) { + ClientProto* client = loaded_state.mutable_clients(i); + if (client->has_connect_time_old()) { + client->set_connect_time_sec(client->connect_time_old() + delta_sec); + client->set_connect_time_nsec(now_monotonic.tv_nsec); + client->clear_connect_time_old(); + } + } + } // Put back the existing clients. It doesn't matter which server we - // allocate them to, so just do round-robin. + // allocate them to, so just do round-robin. However, we need to sort them + // by connection time first, since add_client_serialized() expects that. + sort(loaded_state.mutable_clients()->begin(), + loaded_state.mutable_clients()->end(), + OrderByConnectionTime()); for (int i = 0; i < loaded_state.clients_size(); ++i) { if (deleted_urls.count(loaded_state.clients(i).url()) != 0) { safe_close(loaded_state.clients(i).sock()); @@ -486,23 +530,33 @@ start: input_stats_thread->run(); } - struct timeval server_start; - gettimeofday(&server_start, NULL); + timespec server_start; + int err = clock_gettime(CLOCK_MONOTONIC, &server_start); + assert(err != -1); if (state_fd != -1) { // Measure time from we started deserializing (below) to now, when basically everything // is up and running. This is, in other words, a conservative estimate of how long our // “glitch” period was, not counting of course reconnects if the configuration changed. double glitch_time = server_start.tv_sec - serialize_start.tv_sec + - 1e-6 * (server_start.tv_usec - serialize_start.tv_usec); + 1e-9 * (server_start.tv_nsec - serialize_start.tv_nsec); log(INFO, "Re-exec happened in approx. %.0f ms.", glitch_time * 1000.0); } + sd_notify(0, "READY=1"); + while (!hupped) { usleep(100000); } + if (stopped) { + sd_notify(0, "STOPPING=1"); + } else { + sd_notify(0, "RELOADING=1"); + } + // OK, we've been HUPed. Time to shut down everything, serialize, and re-exec. - gettimeofday(&serialize_start, NULL); + err = clock_gettime(CLOCK_MONOTONIC, &serialize_start); + assert(err != -1); if (input_stats_thread != NULL) { input_stats_thread->stop();