4 // A class dealing with stream output to HTTP.
6 #include <microhttpd.h>
10 #include <condition_variable>
17 struct MHD_Connection;
23 // Should be called before start().
24 void set_header(const std::string &data) {
29 void add_data(const char *buf, size_t size, bool keyframe);
32 static int answer_to_connection_thunk(void *cls, MHD_Connection *connection,
33 const char *url, const char *method,
34 const char *version, const char *upload_data,
35 size_t *upload_data_size, void **con_cls);
37 int answer_to_connection(MHD_Connection *connection,
38 const char *url, const char *method,
39 const char *version, const char *upload_data,
40 size_t *upload_data_size, void **con_cls);
42 static void free_stream(void *cls);
44 static void request_completed_thunk(void *cls, struct MHD_Connection *connection, void **con_cls, enum MHD_RequestTerminationCode toe);
46 void request_completed(struct MHD_Connection *connection, void **con_cls, enum MHD_RequestTerminationCode toe);
55 Stream(Framing framing) : framing(framing) {}
57 static ssize_t reader_callback_thunk(void *cls, uint64_t pos, char *buf, size_t max);
58 ssize_t reader_callback(uint64_t pos, char *buf, size_t max);
65 void add_data(const char *buf, size_t size, DataType data_type);
70 std::mutex buffer_mutex;
71 std::condition_variable has_buffered_data;
72 std::deque<std::string> buffered_data; // Protected by <mutex>.
73 size_t used_of_buffered_data = 0; // How many bytes of the first element of <buffered_data> that is already used. Protected by <mutex>.
74 size_t seen_keyframe = false;
77 std::mutex streams_mutex;
78 std::set<Stream *> streams; // Not owned.
82 #endif // !defined(_HTTPD_H)