#ifndef _SERVERPOOL_H
#define _SERVERPOOL_H 1
-#include "server.h"
-
+#include <stddef.h>
+#include <memory>
+#include <string>
#include <vector>
-class MarkPool;
+#include "server.h"
+#include "state.pb.h"
+#include "stream.h"
+#include "udpstream.h"
+
+class Acceptor;
+class Server;
+class UDPStream;
+struct ClientStats;
+struct sockaddr_in6;
// Provides services such as load-balancing between a number of Server instances.
class ServerPool {
public:
ServerPool(int num_servers);
- ~ServerPool();
- // Accessor. Only to be used in rare situations, really.
- // The ServerPool retains ownership.
- Server *get_server(int num) { return &servers[num]; }
+ // 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.
- void add_stream(const std::string &stream_id);
- void add_stream_from_serialized(const StreamProto &stream);
+ // Adds the given stream to all the servers. Returns the stream index.
+ 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);
+
+ // Returns the stream index for the given URL (e.g. /foo.ts). Returns -1 on failure.
+ int lookup_stream_by_url(const std::string &url) const;
// Adds the given data to all the servers.
- void set_header(const std::string &stream_id, const std::string &header);
- void add_data(const std::string &stream_id, const char *data, size_t bytes);
+ 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, 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);
+
+ // Changes the given stream's backlog size on all the servers.
+ void set_backlog_size(int stream_index, size_t new_size);
- // Connects the given stream to the given mark pool for all the servers.
- void set_mark_pool(const std::string &stream_id, MarkPool *mark_pool);
+ // 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();
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 = 0;
+ std::vector<std::unique_ptr<UDPStream>> udp_streams;
ServerPool(const ServerPool &);
};
projects / cubemap / blobdiff