Move from unique_lock to lock_guard everywhere we can. Perhaps ever so slightly clear...

[nageru] / shared / httpd.cpp

diff --git a/shared/httpd.cpp b/shared/httpd.cpp
index a2668f5987c352d2d3c7c501a86cd86828ffe682..5442e7f123f7533b9740fc244241acd9123b1703 100644 (file)
--- a/shared/httpd.cpp
+++ b/shared/httpd.cpp
@@ -26,6 +26,7 @@ using namespace std;
 HTTPD::HTTPD()
 {
        global_metrics.add("num_connected_clients", &metric_num_connected_clients, Metrics::TYPE_GAUGE);
+       global_metrics.add("num_connected_multicam_clients", &metric_num_connected_multicam_clients, Metrics::TYPE_GAUGE);
 }
 
 HTTPD::~HTTPD()
@@ -60,7 +61,7 @@ void HTTPD::stop()
 
 void HTTPD::add_data(StreamType stream_type, const char *buf, size_t size, bool keyframe, int64_t time, AVRational timebase)
 {
-       unique_lock<mutex> lock(streams_mutex);
+       lock_guard<mutex> lock(streams_mutex);
        for (Stream *stream : streams) {
                if (stream->get_stream_type() == stream_type) {
                        stream->add_data(buf, size, keyframe ? Stream::DATA_TYPE_KEYFRAME : Stream::DATA_TYPE_OTHER, time, timebase);
@@ -132,10 +133,13 @@ int HTTPD::answer_to_connection(MHD_Connection *connection,
        HTTPD::Stream *stream = new HTTPD::Stream(this, framing, stream_type);
        stream->add_data(header[stream_type].data(), header[stream_type].size(), Stream::DATA_TYPE_HEADER, AV_NOPTS_VALUE, AVRational{ 1, 0 });
        {
-               unique_lock<mutex> lock(streams_mutex);
+               lock_guard<mutex> lock(streams_mutex);
                streams.insert(stream);
        }
        ++metric_num_connected_clients;
+       if (stream_type == HTTPD::StreamType::MULTICAM_STREAM) {
+               ++metric_num_connected_multicam_clients;
+       }
        *con_cls = stream;
 
        // Does not strictly have to be equal to MUX_BUFFER_SIZE.
@@ -156,8 +160,11 @@ void HTTPD::free_stream(void *cls)
 {
        HTTPD::Stream *stream = (HTTPD::Stream *)cls;
        HTTPD *httpd = stream->get_parent();
+       if (stream->get_stream_type() == HTTPD::StreamType::MULTICAM_STREAM) {
+               --httpd->metric_num_connected_multicam_clients;
+       }
        {
-               unique_lock<mutex> lock(httpd->streams_mutex);
+               lock_guard<mutex> lock(httpd->streams_mutex);
                delete stream;
                httpd->streams.erase(stream);
        }
@@ -216,7 +223,7 @@ void HTTPD::Stream::add_data(const char *buf, size_t buf_size, HTTPD::Stream::Da
                return;
        }
 
-       unique_lock<mutex> lock(buffer_mutex);
+       lock_guard<mutex> lock(buffer_mutex);
 
        if (framing == FRAMING_METACUBE) {
                int flags = 0;
@@ -277,7 +284,7 @@ void HTTPD::Stream::add_data(const char *buf, size_t buf_size, HTTPD::Stream::Da
 
 void HTTPD::Stream::stop()
 {
-       unique_lock<mutex> lock(buffer_mutex);
+       lock_guard<mutex> lock(buffer_mutex);
        should_quit = true;
        has_buffered_data.notify_all();
 }