]> git.sesse.net Git - cubemap/blobdiff - main.cpp
Remove std:: from all code in .cpp files, for consistency.
[cubemap] / main.cpp
index 14f6323ae01cf1ca821adbcf9a93bfed43ab304d..98d0948de80f9acd835ee5dbea56e8290b15acda 100644 (file)
--- a/main.cpp
+++ b/main.cpp
@@ -10,6 +10,7 @@
 #include <sys/time.h>
 #include <sys/wait.h>
 #include <unistd.h>
+#include <algorithm>
 #include <map>
 #include <set>
 #include <string>
@@ -37,6 +38,18 @@ 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 +67,14 @@ void do_nothing(int signum)
 {
 }
 
-CubemapStateProto collect_state(const timeval &serialize_start,
+CubemapStateProto collect_state(const timespec &serialize_start,
                                 const vector<Acceptor *> acceptors,
                                 const multimap<string, InputWithRefcount> 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 +179,13 @@ 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));
                }
@@ -233,7 +248,7 @@ void open_logs(const vector<LogConfig> &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());
@@ -375,7 +390,7 @@ start:
        find_deleted_streams(config, &deleted_urls);
 
        CubemapStateProto loaded_state;
-       struct timeval serialize_start;
+       timespec serialize_start;
        set<string> deserialized_urls;
        map<sockaddr_in6, Acceptor *, Sockaddr6Compare> deserialized_acceptors;
        multimap<string, InputWithRefcount> inputs;  // multimap due to older versions without deduplication.
@@ -391,7 +406,7 @@ 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<string, string> stream_headers_for_url;  // See below.
@@ -428,7 +443,7 @@ 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))));
@@ -443,9 +458,33 @@ start:
        // Find all streams in the configuration file, create them, and connect to the inputs.
        create_streams(config, deserialized_urls, &inputs);
        vector<Acceptor *> 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());
@@ -490,14 +529,15 @@ 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);
        }
 
@@ -506,7 +546,8 @@ start:
        }
 
        // 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();