Fix a crash when trying to get HLS fragments from a disconnected strema.

[cubemap] / serverpool.h

diff --git a/serverpool.h b/serverpool.h
index 4b56544241afba4883fe899cae308d50707c9b63..253636a64c1de876b83fa051a97a1a12ff81cece 100644 (file)
--- a/serverpool.h
+++ b/serverpool.h
@@ -2,6 +2,7 @@
 #define _SERVERPOOL_H 1
 
 #include <stddef.h>
+#include <memory>
 #include <string>
 #include <vector>
 
@@ -10,6 +11,7 @@
 #include "stream.h"
 #include "udpstream.h"
 
+class Acceptor;
 class Server;
 class UDPStream;
 struct ClientStats;
@@ -19,17 +21,27 @@ struct sockaddr_in6;
 class ServerPool {
 public:
        ServerPool(int num_servers);
-       ~ServerPool();
 
        // Fills streams() and clients().
        CubemapStateProto serialize();
 
        // Picks a server (round-robin) and allocates the given client to it.
-       void add_client(int sock);
-       void add_client_from_serialized(const ClientProto &client);
+       void add_client(int sock, Acceptor *acceptor);
+       void add_client_from_serialized(const ClientProto &client, const std::vector<std::shared_ptr<const std::string>> &short_responses);
+
+       // Picks a srever (round-robin) and adds the given HLS zombie to it.
+       void add_hls_zombie_from_serialized(const HLSZombieProto &client);
 
        // Adds the given stream to all the servers. Returns the stream index.
-       int add_stream(const std::string &url, size_t backlog_size, size_t prebuffering_bytes, Stream::Encoding encoding);
+       int add_stream(const std::string &url,
+                      const std::string &hls_url,
+                      size_t backlog_size,
+                      size_t prebuffering_bytes,
+                      Stream::Encoding encoding,
+                      Stream::Encoding src_encoding,
+                       unsigned hls_frag_duration,
+                       size_t hls_backlog_margin,
+                       const std::string &allow_origin);
        int add_stream_from_serialized(const StreamProto &stream, const std::vector<int> &data_fds);
        void delete_stream(const std::string &url);
        int add_udpstream(const sockaddr_in6 &dst, int pacing_rate, int ttl, int multicast_iface_index);
@@ -41,7 +53,10 @@ public:
        void set_header(int stream_index,
                        const std::string &http_header,
                        const std::string &stream_header);
-       void add_data(int stream_index, const char *data, size_t bytes, StreamStartSuitability suitable_for_stream_start);
+       void add_data(int stream_index, const char *data, size_t bytes, uint16_t metacube_flags, const RationalPTS &pts);
+
+       // Sets the given stream as unavailable on all the servers.
+       void set_unavailable(int stream_index);
 
        // Sets the max pacing rate for all the servers.
        void set_pacing_rate(int stream_index, uint32_t pacing_rate);
@@ -49,9 +64,36 @@ public:
        // Changes the given stream's backlog size on all the servers.
        void set_backlog_size(int stream_index, size_t new_size);
 
-       // Changes the given stream's encoding type on all the servers.
+       // Changes the given stream's amount of forced prebuffering on all the servers.
+       void set_prebuffering_bytes(int stream_index, size_t new_amount);
+
+       // Changes the given stream's output encoding type on all the servers.
        void set_encoding(int stream_index, Stream::Encoding encoding);
 
+       // Changes the given stream's input encoding type on all the servers.
+       void set_src_encoding(int stream_index, Stream::Encoding encoding);
+
+       // Changes the given stream's maximum HLS fragment duration (in seconds) on all the servers.
+       void set_hls_frag_duration(int stream_index, unsigned hls_frag_duration);
+
+       // Changes the given stream's backlog margin for HLS fragments (in bytes) on all the servers.
+       void set_hls_backlog_margin(int stream_index, size_t hls_backlog_margin);
+
+       // Changes the given stream's CORS header on all the servers.
+       void set_allow_origin(int stream_index, const std::string &allow_origin);
+
+       // Register the given stream under the given URL on all the servers.
+       // Used only for deserialized streams (for new ones, we do this registration
+       // in add_stream()).
+       void register_hls_url(int stream_index, const std::string &hls_url);
+
+       // Adds the given gen204 endpoint to all the servers.
+       void add_gen204(const std::string &url, const std::string &allow_origin);
+
+       // Prepares all the servers for accepting TLS connections from the given acceptor.
+       // (They need a private context, since the contexts are not definde to be thread-safe.)
+       void create_tls_context_for_acceptor(const Acceptor *acceptor);
+
        // Starts all the servers.
        void run();
 
@@ -59,17 +101,18 @@ public:
        void stop();
 
        std::vector<ClientStats> get_client_stats() const;
+       std::vector<HLSZombie> get_hls_zombies() const;
 
 private:
-       Server *servers;
-       int num_servers, clients_added;
+       std::unique_ptr<Server[]> servers;
+       int num_servers, clients_added = 0;
 
        // Our indexing is currently rather primitive; every stream_index in
        // [0, num_http_streams) maps to a HTTP stream (of which every Server
        // has exactly one copy), and after that, it's mapping directly into
        // <udp_streams>.
-       int num_http_streams;
-       std::vector<UDPStream *> udp_streams;
+       int num_http_streams = 0;
+       std::vector<std::unique_ptr<UDPStream>> udp_streams;
 
        ServerPool(const ServerPool &);
 };