RTC: Refine resouce management

trunk/src/app/srs_app_caster_flv.cpp

@@ -49,7 +49,7 @@ SrsAppCasterFlv::SrsAppCasterFlv(SrsConfDirective* c)
 {
     http_mux = new SrsHttpServeMux();
     output = _srs_config->get_stream_caster_output(c);
-    manager = new SrsConnectionManager();
+    manager = new SrsResourceManager("CasterFLV");
 }
 
 SrsAppCasterFlv::~SrsAppCasterFlv()
@@ -95,7 +95,7 @@ srs_error_t SrsAppCasterFlv::on_tcp_client(srs_netfd_t stfd)
     return err;
 }
 
-void SrsAppCasterFlv::remove(ISrsConnection* c)
+void SrsAppCasterFlv::remove(ISrsResource* c)
 {
     SrsTcpConnection* conn = dynamic_cast<SrsTcpConnection*>(c);
     
@@ -141,7 +141,7 @@ srs_error_t SrsAppCasterFlv::serve_http(ISrsHttpResponseWriter* w, ISrsHttpMessa
     return err;
 }
 
-SrsDynamicHttpConn::SrsDynamicHttpConn(IConnectionManager* cm, srs_netfd_t fd, SrsHttpServeMux* m, string cip, int port) : SrsHttpConn(cm, fd, m, cip, port)
+SrsDynamicHttpConn::SrsDynamicHttpConn(ISrsResourceManager* cm, srs_netfd_t fd, SrsHttpServeMux* m, string cip, int port) : SrsHttpConn(cm, fd, m, cip, port)
 {
     sdk = NULL;
     pprint = SrsPithyPrint::create_caster();

trunk/src/app/srs_app_caster_flv.hpp

@@ -48,13 +48,13 @@ class SrsSimpleRtmpClient;
 
 // The stream caster for flv stream over HTTP POST.
 class SrsAppCasterFlv : virtual public ISrsTcpHandler
-    , virtual public IConnectionManager, virtual public ISrsHttpHandler
+    , virtual public ISrsResourceManager, virtual public ISrsHttpHandler
 {
 private:
     std::string output;
     SrsHttpServeMux* http_mux;
     std::vector<SrsHttpConn*> conns;
-    SrsConnectionManager* manager;
+    SrsResourceManager* manager;
 public:
     SrsAppCasterFlv(SrsConfDirective* c);
     virtual ~SrsAppCasterFlv();
@@ -63,9 +63,9 @@ public:
 // Interface ISrsTcpHandler
 public:
     virtual srs_error_t on_tcp_client(srs_netfd_t stfd);
-// Interface IConnectionManager
+// Interface ISrsResourceManager
 public:
-    virtual void remove(ISrsConnection* c);
+    virtual void remove(ISrsResource* c);
 // Interface ISrsHttpHandler
 public:
     virtual srs_error_t serve_http(ISrsHttpResponseWriter* w, ISrsHttpMessage* r);
@@ -79,7 +79,7 @@ private:
     SrsPithyPrint* pprint;
     SrsSimpleRtmpClient* sdk;
 public:
-    SrsDynamicHttpConn(IConnectionManager* cm, srs_netfd_t fd, SrsHttpServeMux* m, std::string cip, int port);
+    SrsDynamicHttpConn(ISrsResourceManager* cm, srs_netfd_t fd, SrsHttpServeMux* m, std::string cip, int port);
     virtual ~SrsDynamicHttpConn();
 public:
     virtual srs_error_t on_got_http_message(ISrsHttpMessage* msg);

trunk/src/app/srs_app_conn.cpp

@@ -31,28 +31,44 @@ using namespace std;
 #include <srs_kernel_error.hpp>
 #include <srs_app_utility.hpp>
 #include <srs_kernel_utility.hpp>
+#include <srs_service_log.hpp>
 
-SrsConnectionManager::SrsConnectionManager()
+ISrsDisposingHandler::ISrsDisposingHandler()
 {
+}
+
+ISrsDisposingHandler::~ISrsDisposingHandler()
+{
+}
+
+SrsResourceManager::SrsResourceManager(const std::string& label, bool verbose)
+{
+    verbose_ = verbose;
+    label_ = label;
     cond = srs_cond_new();
-    trd = new SrsSTCoroutine("manager", this);
+    trd = NULL;
 }
 
-SrsConnectionManager::~SrsConnectionManager()
+SrsResourceManager::~SrsResourceManager()
 {
+    if (trd) {
         srs_cond_signal(cond);
         trd->stop();
 
         srs_freep(trd);
         srs_cond_destroy(cond);
+    }
 
     clear();
 }
 
-srs_error_t SrsConnectionManager::start()
+srs_error_t SrsResourceManager::start()
 {
     srs_error_t err = srs_success;
 
+    cid_ = _srs_context->generate_id();
+    trd = new SrsSTCoroutine("manager", this, cid_);
+
     if ((err = trd->start()) != srs_success) {
         return srs_error_wrap(err, "conn manager");
     }
@@ -60,20 +76,22 @@ srs_error_t SrsConnectionManager::start()
     return err;
 }
 
-bool SrsConnectionManager::empty()
+bool SrsResourceManager::empty()
 {
     return conns_.empty();
 }
 
-size_t SrsConnectionManager::size()
+size_t SrsResourceManager::size()
 {
     return conns_.size();
 }
 
-srs_error_t SrsConnectionManager::cycle()
+srs_error_t SrsResourceManager::cycle()
 {
     srs_error_t err = srs_success;
 
+    srs_trace("%s connection manager run", label_.c_str());
+
     while (true) {
         if ((err = trd->pull()) != srs_success) {
             return srs_error_wrap(err, "conn manager");
@@ -91,67 +109,110 @@ srs_error_t SrsConnectionManager::cycle()
     return err;
 }
 
-void SrsConnectionManager::add(ISrsConnection* conn)
+void SrsResourceManager::add(ISrsResource* conn)
 {
     if (std::find(conns_.begin(), conns_.end(), conn) == conns_.end()) {
         conns_.push_back(conn);
     }
 }
 
-void SrsConnectionManager::add_with_id(const std::string& id, ISrsConnection* conn)
+void SrsResourceManager::add_with_id(const std::string& id, ISrsResource* conn)
 {
     add(conn);
     conns_id_.insert(make_pair(id, conn));
 }
 
-void SrsConnectionManager::add_with_name(const std::string& name, ISrsConnection* conn)
+void SrsResourceManager::add_with_name(const std::string& name, ISrsResource* conn)
 {
     add(conn);
     conns_name_.insert(make_pair(name, conn));
 }
 
-ISrsConnection* SrsConnectionManager::at(int index)
+ISrsResource* SrsResourceManager::at(int index)
 {
-    return conns_.at(index);
+    return (index < (int)conns_.size())? conns_.at(index) : NULL;
 }
 
-ISrsConnection* SrsConnectionManager::find_by_id(std::string id)
+ISrsResource* SrsResourceManager::find_by_id(std::string id)
 {
-    map<string, ISrsConnection*>::iterator it = conns_id_.find(id);
+    map<string, ISrsResource*>::iterator it = conns_id_.find(id);
     return (it != conns_id_.end())? it->second : NULL;
 }
 
-ISrsConnection* SrsConnectionManager::find_by_name(std::string name)
+ISrsResource* SrsResourceManager::find_by_name(std::string name)
 {
-    map<string, ISrsConnection*>::iterator it = conns_name_.find(name);
+    map<string, ISrsResource*>::iterator it = conns_name_.find(name);
     return (it != conns_name_.end())? it->second : NULL;
 }
 
-void SrsConnectionManager::remove(ISrsConnection* c)
+void SrsResourceManager::subscribe(ISrsDisposingHandler* h)
 {
+    if (std::find(handlers_.begin(), handlers_.end(), h) == handlers_.end()) {
+        handlers_.push_back(h);
+    }
+}
+
+void SrsResourceManager::unsubscribe(ISrsDisposingHandler* h)
+{
+    vector<ISrsDisposingHandler*>::iterator it = find(handlers_.begin(), handlers_.end(), h);
+    if (it != handlers_.end()) {
+        handlers_.erase(it);
+    }
+}
+
+void SrsResourceManager::remove(ISrsResource* c)
+{
+    SrsContextRestore(cid_);
+    if (verbose_) {
+        _srs_context->set_id(c->get_id());
+        srs_trace("before dispose resource(%s), zombies=%d", c->desc().c_str(), (int)zombies_.size());
+    }
+
     if (std::find(zombies_.begin(), zombies_.end(), c) == zombies_.end()) {
         zombies_.push_back(c);
-        srs_cond_signal(cond);
     }
+
+    for (int i = 0; i < (int)handlers_.size(); i++) {
+        ISrsDisposingHandler* h = handlers_.at(i);
+        h->on_before_dispose(c);
+    }
+
+    srs_cond_signal(cond);
 }
 
-void SrsConnectionManager::clear()
+void SrsResourceManager::clear()
 {
+    if (zombies_.empty()) {
+        return;
+    }
+
+    SrsContextRestore(cid_);
+    if (verbose_) {
+        srs_trace("clear zombies=%d connections", (int)zombies_.size());
+    }
+
     // To prevent thread switch when delete connection,
     // we copy all connections then free one by one.
-    vector<ISrsConnection*> copy;
+    vector<ISrsResource*> copy;
     copy.swap(zombies_);
 
-    vector<ISrsConnection*>::iterator it;
+    vector<ISrsResource*>::iterator it;
     for (it = copy.begin(); it != copy.end(); ++it) {
-        ISrsConnection* conn = *it;
+        ISrsResource* conn = *it;
+
+        if (verbose_) {
+            _srs_context->set_id(conn->get_id());
+            srs_trace("disposing resource(%s), zombies=%d/%d", conn->desc().c_str(),
+                (int)copy.size(), (int)zombies_.size());
+        }
+
         dispose(conn);
     }
 }
 
-void SrsConnectionManager::dispose(ISrsConnection* c)
+void SrsResourceManager::dispose(ISrsResource* c)
 {
-    for (map<string, ISrsConnection*>::iterator it = conns_name_.begin(); it != conns_name_.end();) {
+    for (map<string, ISrsResource*>::iterator it = conns_name_.begin(); it != conns_name_.end();) {
         if (c != it->second) {
             ++it;
         } else {
@@ -160,7 +221,7 @@ void SrsConnectionManager::dispose(ISrsConnection* c)
         }
     }
 
-    for (map<string, ISrsConnection*>::iterator it = conns_id_.begin(); it != conns_id_.end();) {
+    for (map<string, ISrsResource*>::iterator it = conns_id_.begin(); it != conns_id_.end();) {
         if (c != it->second) {
             ++it;
         } else {
@@ -169,15 +230,20 @@ void SrsConnectionManager::dispose(ISrsConnection* c)
         }
     }
 
-    vector<ISrsConnection*>::iterator it = std::find(conns_.begin(), conns_.end(), c);
+    vector<ISrsResource*>::iterator it = std::find(conns_.begin(), conns_.end(), c);
     if (it != conns_.end()) {
         conns_.erase(it);
     }
 
+    for (int i = 0; i < (int)handlers_.size(); i++) {
+        ISrsDisposingHandler* h = handlers_.at(i);
+        h->on_disposing(c);
+    }
+
     srs_freep(c);
 }
 
-SrsTcpConnection::SrsTcpConnection(IConnectionManager* cm, srs_netfd_t c, string cip, int cport)
+SrsTcpConnection::SrsTcpConnection(ISrsResourceManager* cm, srs_netfd_t c, string cip, int cport)
 {
     manager = cm;
     stfd = c;
@@ -357,6 +423,11 @@ string SrsTcpConnection::remote_ip()
     return ip;
 }
 
+const SrsContextId& SrsTcpConnection::get_id()
+{
+    return trd->cid();
+}
+
 void SrsTcpConnection::expire()
 {
     trd->interrupt();

trunk/src/app/srs_app_conn.hpp

@@ -37,24 +37,43 @@
 
 class SrsWallClock;
 
-// The connection manager remove connection and delete it asynchronously.
-class SrsConnectionManager : virtual public ISrsCoroutineHandler, virtual public IConnectionManager
+// Hooks for connection manager, to handle the event when disposing connections.
+class ISrsDisposingHandler
+{
+public:
+    ISrsDisposingHandler();
+    virtual ~ISrsDisposingHandler();
+public:
+    // When before disposing resource, trigger when manager.remove(c), sync API.
+    virtual void on_before_dispose(ISrsResource* c) = 0;
+    // When disposing resource, async API, c is freed after it.
+    virtual void on_disposing(ISrsResource* c) = 0;
+};
+
+// The resource manager remove resource and delete it asynchronously.
+class SrsResourceManager : virtual public ISrsCoroutineHandler, virtual public ISrsResourceManager
 {
+private:
+    std::string label_;
+    SrsContextId cid_;
+    bool verbose_;
 private:
     SrsCoroutine* trd;
     srs_cond_t cond;
+    // Callback handlers.
+    std::vector<ISrsDisposingHandler*> handlers_;
     // The zombie connections, we will delete it asynchronously.
-    std::vector<ISrsConnection*> zombies_;
+    std::vector<ISrsResource*> zombies_;
 private:
     // The connections without any id.
-    std::vector<ISrsConnection*> conns_;
-    // The connections with connection id.
-    std::map<std::string, ISrsConnection*> conns_id_;
-    // The connections with connection name.
-    std::map<std::string, ISrsConnection*> conns_name_;
+    std::vector<ISrsResource*> conns_;
+    // The connections with resource id.
+    std::map<std::string, ISrsResource*> conns_id_;
+    // The connections with resource name.
+    std::map<std::string, ISrsResource*> conns_name_;
 public:
-    SrsConnectionManager();
-    virtual ~SrsConnectionManager();
+    SrsResourceManager(const std::string& label, bool verbose = false);
+    virtual ~SrsResourceManager();
 public:
     srs_error_t start();
     bool empty();
@@ -63,18 +82,21 @@ public:
 public:
     virtual srs_error_t cycle();
 public:
-    void add(ISrsConnection* conn);
-    void add_with_id(const std::string& id, ISrsConnection* conn);
-    void add_with_name(const std::string& name, ISrsConnection* conn);
-    ISrsConnection* at(int index);
-    ISrsConnection* find_by_id(std::string id);
-    ISrsConnection* find_by_name(std::string name);
-// Interface IConnectionManager
+    void add(ISrsResource* conn);
+    void add_with_id(const std::string& id, ISrsResource* conn);
+    void add_with_name(const std::string& name, ISrsResource* conn);
+    ISrsResource* at(int index);
+    ISrsResource* find_by_id(std::string id);
+    ISrsResource* find_by_name(std::string name);
+public:
+    void subscribe(ISrsDisposingHandler* h);
+    void unsubscribe(ISrsDisposingHandler* h);
+// Interface ISrsResourceManager
 public:
-    virtual void remove(ISrsConnection* c);
+    virtual void remove(ISrsResource* c);
 private:
     void clear();
-    void dispose(ISrsConnection* c);
+    void dispose(ISrsResource* c);
 };
 
 // The basic connection of SRS, for TCP based protocols,
@@ -88,7 +110,7 @@ protected:
     // when thread stop, the connection will be delete by server.
     SrsCoroutine* trd;
     // The manager object to manage the connection.
-    IConnectionManager* manager;
+    ISrsResourceManager* manager;
     // The underlayer st fd handler.
     srs_netfd_t stfd;
     // The ip and port of client.
@@ -106,7 +128,7 @@ protected:
     // for current connection to log self create time and calculate the living time.
     int64_t create_time;
 public:
-    SrsTcpConnection(IConnectionManager* cm, srs_netfd_t c, std::string cip, int cport);
+    SrsTcpConnection(ISrsResourceManager* cm, srs_netfd_t c, std::string cip, int cport);
     virtual ~SrsTcpConnection();
 // Interface ISrsKbpsDelta
 public:
@@ -136,8 +158,11 @@ public:
     // Get the srs id which identify the client.
     // TODO: FIXME: Rename to cid.
     virtual SrsContextId srs_id();
-    // Get the remote ip of peer.
+// Interface ISrsConnection.
+public:
     virtual std::string remote_ip();
+    virtual const SrsContextId& get_id();
+public:
     // Set connection to expired.
     virtual void expire();
 protected:

trunk/src/app/srs_app_gb28181.cpp

@@ -1011,6 +1011,11 @@ std::string SrsGb28181RtmpMuxer::remote_ip()
     return "";
 }
 
+std::string SrsGb28181RtmpMuxer::desc()
+{
+    return "GBConn";
+}
+
 std::string SrsGb28181RtmpMuxer::get_channel_id()
 {
     return channel_id;
@@ -1890,7 +1895,7 @@ SrsGb28181Manger::SrsGb28181Manger(SrsServer *s, SrsConfDirective* c)
     // TODO: FIXME: support reload.
     server = s;
     config = new SrsGb28181Config(c);
-    manager = new SrsConnectionManager();
+    manager = new SrsResourceManager("GB28181");
 }
 
 SrsGb28181Manger::~SrsGb28181Manger()

trunk/src/app/srs_app_gb28181.hpp

@@ -348,6 +348,7 @@ private:
 public:
     virtual srs_error_t cycle();
     virtual std::string remote_ip();
+    virtual std::string desc();
 public:
     virtual srs_error_t on_rtp_video(SrsSimpleStream* stream, int64_t dts);
     virtual srs_error_t on_rtp_audio(SrsSimpleStream* stream, int64_t dts, int type);
@@ -473,7 +474,7 @@ private:
     std::map<uint32_t, SrsPsRtpListener*> rtp_pool;
     std::map<uint32_t, SrsGb28181RtmpMuxer*> rtmpmuxers_ssrc;
     std::map<std::string, SrsGb28181RtmpMuxer*> rtmpmuxers;
-    SrsConnectionManager* manager;
+    SrsResourceManager* manager;
     SrsGb28181SipService* sip_service;
     SrsServer* server;
 public:

trunk/src/app/srs_app_gb28181_sip.cpp

@@ -301,6 +301,11 @@ std::string SrsGb28181SipSession::remote_ip()
     return _peer_ip;
 }
 
+std::string SrsGb28181SipSession::desc()
+{
+    return "SipConn";
+}
+
 srs_error_t SrsGb28181SipSession::cycle()
 {
     srs_error_t err = do_cycle();

trunk/src/app/srs_app_gb28181_sip.hpp

@@ -144,6 +144,7 @@ public:
 public:
     virtual srs_error_t cycle();   
     virtual std::string remote_ip();
+    virtual std::string desc();
 private:
     virtual srs_error_t do_cycle();
 };

trunk/src/app/srs_app_http_api.cpp

@@ -1674,7 +1674,7 @@ srs_error_t SrsGoApiTcmalloc::serve_http(ISrsHttpResponseWriter* w, ISrsHttpMess
 }
 #endif
 
-SrsHttpApi::SrsHttpApi(IConnectionManager* cm, srs_netfd_t fd, SrsHttpServeMux* m, string cip, int port)
+SrsHttpApi::SrsHttpApi(ISrsResourceManager* cm, srs_netfd_t fd, SrsHttpServeMux* m, string cip, int port)
     : SrsTcpConnection(cm, fd, cip, port)
 {
     mux = m;
@@ -1692,6 +1692,11 @@ SrsHttpApi::~SrsHttpApi()
     _srs_config->unsubscribe(this);
 }
 
+std::string SrsHttpApi::desc()
+{
+    return "HttpConn";
+}
+
 void SrsHttpApi::remark(int64_t* in, int64_t* out)
 {
     // TODO: FIXME: implements it

trunk/src/app/srs_app_http_api.hpp

@@ -261,8 +261,11 @@ private:
     SrsHttpCorsMux* cors;
     SrsHttpServeMux* mux;
 public:
-    SrsHttpApi(IConnectionManager* cm, srs_netfd_t fd, SrsHttpServeMux* m, std::string cip, int port);
+    SrsHttpApi(ISrsResourceManager* cm, srs_netfd_t fd, SrsHttpServeMux* m, std::string cip, int port);
     virtual ~SrsHttpApi();
+// Interface ISrsResource.
+public:
+    virtual std::string desc();
 // Interface ISrsKbpsDelta
 public:
     virtual void remark(int64_t* in, int64_t* out);

trunk/src/app/srs_app_http_conn.cpp

@@ -59,7 +59,7 @@ using namespace std;
 #include <srs_app_utility.hpp>
 #include <srs_app_st.hpp>
 
-SrsHttpConn::SrsHttpConn(IConnectionManager* cm, srs_netfd_t fd, ISrsHttpServeMux* m, string cip, int port)
+SrsHttpConn::SrsHttpConn(ISrsResourceManager* cm, srs_netfd_t fd, ISrsHttpServeMux* m, string cip, int port)
     : SrsTcpConnection(cm, fd, cip, port)
 {
     parser = new SrsHttpParser();
@@ -73,6 +73,11 @@ SrsHttpConn::~SrsHttpConn()
     srs_freep(cors);
 }
 
+std::string SrsHttpConn::desc()
+{
+    return "HttpConn";
+}
+
 void SrsHttpConn::remark(int64_t* in, int64_t* out)
 {
     // TODO: FIXME: implements it
@@ -185,7 +190,7 @@ srs_error_t SrsHttpConn::on_reload_http_stream_crossdomain()
     return err;
 }
 
-SrsResponseOnlyHttpConn::SrsResponseOnlyHttpConn(IConnectionManager* cm, srs_netfd_t fd, ISrsHttpServeMux* m, string cip, int port) : SrsHttpConn(cm, fd, m, cip, port)
+SrsResponseOnlyHttpConn::SrsResponseOnlyHttpConn(ISrsResourceManager* cm, srs_netfd_t fd, ISrsHttpServeMux* m, string cip, int port) : SrsHttpConn(cm, fd, m, cip, port)
 {
 }
 

trunk/src/app/srs_app_http_conn.hpp

@@ -62,8 +62,11 @@ protected:
     ISrsHttpServeMux* http_mux;
     SrsHttpCorsMux* cors;
 public:
-    SrsHttpConn(IConnectionManager* cm, srs_netfd_t fd, ISrsHttpServeMux* m, std::string cip, int port);
+    SrsHttpConn(ISrsResourceManager* cm, srs_netfd_t fd, ISrsHttpServeMux* m, std::string cip, int port);
     virtual ~SrsHttpConn();
+// Interface ISrsResource.
+public:
+    virtual std::string desc();
 // Interface ISrsKbpsDelta
 public:
     virtual void remark(int64_t* in, int64_t* out);
@@ -89,7 +92,7 @@ public:
 class SrsResponseOnlyHttpConn : public SrsHttpConn
 {
 public:
-    SrsResponseOnlyHttpConn(IConnectionManager* cm, srs_netfd_t fd, ISrsHttpServeMux* m, std::string cip, int port);
+    SrsResponseOnlyHttpConn(ISrsResourceManager* cm, srs_netfd_t fd, ISrsHttpServeMux* m, std::string cip, int port);
     virtual ~SrsResponseOnlyHttpConn();
 public:
     // Directly read a HTTP request message.

trunk/src/app/srs_app_rtc_conn.cpp

@@ -1603,10 +1603,14 @@ SrsRtcConnection::SrsRtcConnection(SrsRtcServer* s, const SrsContextId& cid)
     nn_simulate_player_nack_drop = 0;
     pp_address_change = new SrsErrorPithyPrint();
     pli_epp = new SrsErrorPithyPrint();
+
+    _srs_rtc_manager->subscribe(this);
 }
 
 SrsRtcConnection::~SrsRtcConnection()
 {
+    _srs_rtc_manager->unsubscribe(this);
+
     srs_freep(timer_);
     
     // Cleanup publishers.
@@ -1640,6 +1644,31 @@ SrsRtcConnection::~SrsRtcConnection()
     srs_freep(pli_epp);
 }
 
+void SrsRtcConnection::on_before_dispose(ISrsResource* c)
+{
+    if (disposing_) {
+        return;
+    }
+
+    SrsRtcConnection* session = dynamic_cast<SrsRtcConnection*>(c);
+    if (session == this) {
+        disposing_ = true;
+    }
+
+    if (session && session == this) {
+        _srs_context->set_id(cid_);
+        srs_trace("RTC: session detach from [%s](%s), disposing=%d", c->get_id().c_str(),
+            c->desc().c_str(), disposing_);
+    }
+}
+
+void SrsRtcConnection::on_disposing(ISrsResource* c)
+{
+    if (disposing_) {
+        return;
+    }
+}
+
 SrsSdp* SrsRtcConnection::get_local_sdp()
 {
     return &local_sdp;
@@ -1688,12 +1717,14 @@ vector<SrsUdpMuxSocket*> SrsRtcConnection::peer_addresses()
     return addresses;
 }
 
-string SrsRtcConnection::remote_ip()
+const SrsContextId& SrsRtcConnection::get_id()
 {
-    if (sendonly_skt) {
-        return sendonly_skt->get_peer_ip();
+    return cid_;
 }
-    return "";
+
+std::string SrsRtcConnection::desc()
+{
+    return "RtcConn";
 }
 
 void SrsRtcConnection::switch_to_context()
@@ -2126,17 +2157,14 @@ srs_error_t SrsRtcConnection::on_dtls_alert(std::string type, std::string desc)
 {
     srs_error_t err = srs_success;
 
-    SrsRtcConnection* session = this;
-
     // CN(Close Notify) is sent when client close the PeerConnection.
     if (type == "warning" && desc == "CN") {
         SrsContextRestore(_srs_context->get_id());
-        session->switch_to_context();
-
-        string username = session->username();
-        srs_trace("RTC: session DTLS alert, username=%s, summary: %s", username.c_str(), session->stat_->summary().c_str());
+        switch_to_context();
 
-        server_->dispose(session);
+        srs_trace("RTC: session destroy by DTLS alert, username=%s, summary: %s",
+            username_.c_str(), stat_->summary().c_str());
+        _srs_rtc_manager->remove(this);
     }
 
     return err;

trunk/src/app/srs_app_rtc_conn.hpp

@@ -39,6 +39,7 @@
 #include <srs_app_rtc_source.hpp>
 #include <srs_app_rtc_dtls.hpp>
 #include <srs_service_conn.hpp>
+#include <srs_app_conn.hpp>
 
 #include <string>
 #include <map>
@@ -416,7 +417,8 @@ public:
 };
 
 // A RTC Peer Connection, SDP level object.
-class SrsRtcConnection : virtual public ISrsHourGlass, virtual public ISrsConnection
+class SrsRtcConnection : virtual public ISrsHourGlass, virtual public ISrsResource
+    , virtual public ISrsDisposingHandler
 {
     friend class SrsSecurityTransport;
     friend class SrsRtcPlayStream;
@@ -469,6 +471,10 @@ private:
 public:
     SrsRtcConnection(SrsRtcServer* s, const SrsContextId& cid);
     virtual ~SrsRtcConnection();
+// interface ISrsDisposingHandler
+public:
+    virtual void on_before_dispose(ISrsResource* c);
+    virtual void on_disposing(ISrsResource* c);
 public:
     // TODO: FIXME: save only connection info.
     SrsSdp* get_local_sdp();
@@ -482,9 +488,10 @@ public:
     std::string username();
     // Get all addresses client used.
     std::vector<SrsUdpMuxSocket*> peer_addresses();
-// interface ISrsConnection
+// Interface ISrsResource.
 public:
-    virtual std::string remote_ip();
+    virtual const SrsContextId& get_id();
+    virtual std::string desc();
 public:
     void switch_to_context();
     const SrsContextId& context_id();

trunk/src/app/srs_app_rtc_server.cpp

@@ -216,7 +216,6 @@ SrsRtcServer::SrsRtcServer()
 {
     handler = NULL;
     hijacker = NULL;
-    manager = new SrsConnectionManager();
     timer = new SrsHourGlass(this, 1 * SRS_UTIME_SECONDS);
 }
 
@@ -231,8 +230,6 @@ SrsRtcServer::~SrsRtcServer()
             srs_freep(listener);
         }
     }
-
-    srs_freep(manager);
 }
 
 srs_error_t SrsRtcServer::initialize()
@@ -251,10 +248,6 @@ srs_error_t SrsRtcServer::initialize()
         return srs_error_wrap(err, "black hole");
     }
 
-    if ((err = manager->start()) != srs_success) {
-        return srs_error_wrap(err, "start manager");
-    }
-
     srs_trace("RTC server init ok");
 
     return err;
@@ -311,7 +304,7 @@ srs_error_t SrsRtcServer::on_udp_packet(SrsUdpMuxSocket* skt)
 
     SrsRtcConnection* session = NULL;
     if (true) {
-        ISrsConnection* conn = manager->find_by_id(peer_id);
+        ISrsResource* conn = _srs_rtc_manager->find_by_id(peer_id);
         if (conn) {
             // Switch to the session to write logs to the context.
             session = dynamic_cast<SrsRtcConnection*>(conn);
@@ -458,7 +451,7 @@ srs_error_t SrsRtcServer::do_create_session(
         local_ufrag = srs_random_str(8);
 
         username = local_ufrag + ":" + remote_sdp.get_ice_ufrag();
-        if (!manager->find_by_name(username)) {
+        if (!_srs_rtc_manager->find_by_name(username)) {
             break;
         }
     }
@@ -504,7 +497,7 @@ srs_error_t SrsRtcServer::do_create_session(
     }
 
     // We allows username is optional, but it never empty here.
-    manager->add_with_name(username, session);
+    _srs_rtc_manager->add_with_name(username, session);
 
     return err;
 }
@@ -567,7 +560,7 @@ srs_error_t SrsRtcServer::setup_session2(SrsRtcConnection* session, SrsRequest*
     }
 
     // We allows username is optional, but it never empty here.
-    manager->add_with_name(username, session);
+    _srs_rtc_manager->add_with_name(username, session);
 
     session->set_remote_sdp(remote_sdp);
     session->set_state(WAITING_STUN);
@@ -575,37 +568,14 @@ srs_error_t SrsRtcServer::setup_session2(SrsRtcConnection* session, SrsRequest*
     return err;
 }
 
-void SrsRtcServer::dispose(SrsRtcConnection* session)
-{
-    if (session->disposing_) {
-        return;
-    }
-
-    destroy(session);
-
-    if (handler) {
-        handler->on_timeout(session);
-    }
-}
-
-void SrsRtcServer::destroy(SrsRtcConnection* session)
-{
-    if (session->disposing_) {
-        return;
-    }
-    session->disposing_ = true;
-
-    manager->remove(session);
-}
-
 void SrsRtcServer::insert_into_id_sessions(const string& peer_id, SrsRtcConnection* session)
 {
-    manager->add_with_id(peer_id, session);
+    _srs_rtc_manager->add_with_id(peer_id, session);
 }
 
 SrsRtcConnection* SrsRtcServer::find_session_by_username(const std::string& username)
 {
-    ISrsConnection* conn = manager->find_by_name(username);
+    ISrsResource* conn = _srs_rtc_manager->find_by_name(username);
     return dynamic_cast<SrsRtcConnection*>(conn);
 }
 
@@ -614,11 +584,9 @@ srs_error_t SrsRtcServer::notify(int type, srs_utime_t interval, srs_utime_t tic
     srs_error_t err = srs_success;
 
     // Check all sessions and dispose the dead sessions.
-    for (int i = 0; i < (int)manager->size(); i++) {
-        SrsRtcConnection* session = dynamic_cast<SrsRtcConnection*>(manager->at(i));
-        srs_assert(session);
-
-        if (!session->is_stun_timeout()) {
+    for (int i = 0; i < (int)_srs_rtc_manager->size(); i++) {
+        SrsRtcConnection* session = dynamic_cast<SrsRtcConnection*>(_srs_rtc_manager->at(i));
+        if (!session || !session->is_stun_timeout() || session->disposing_) {
             continue;
         }
 
@@ -626,10 +594,11 @@ srs_error_t SrsRtcServer::notify(int type, srs_utime_t interval, srs_utime_t tic
         session->switch_to_context();
 
         string username = session->username();
-        srs_trace("RTC: session STUN timeout, username=%s, summary: %s", username.c_str(), session->stat_->summary().c_str());
+        srs_trace("RTC: session destroy by timeout, username=%s, summary: %s", username.c_str(),
+            session->stat_->summary().c_str());
 
-        // Destroy session and notify the handler.
-        dispose(session);
+        // Use manager to free session and notify other objects.
+        _srs_rtc_manager->remove(session);
     }
 
     return err;
@@ -672,6 +641,10 @@ srs_error_t RtcServerAdapter::run()
         return srs_error_wrap(err, "listen api");
     }
 
+    if ((err = _srs_rtc_manager->start()) != srs_success) {
+        return srs_error_wrap(err, "start manager");
+    }
+
     return err;
 }
 
@@ -679,3 +652,5 @@ void RtcServerAdapter::stop()
 {
 }
 
+SrsResourceManager* _srs_rtc_manager = new SrsResourceManager("RTC", true);
+

trunk/src/app/srs_app_rtc_server.hpp

@@ -40,7 +40,7 @@ class SrsRtcConnection;
 class SrsRequest;
 class SrsSdp;
 class SrsRtcStream;
-class SrsConnectionManager;
+class SrsResourceManager;
 
 // The UDP black hole, for developer to use wireshark to catch plaintext packets.
 // For example, server receive UDP packets at udp://8000, and forward the plaintext packet to black hole,
@@ -92,7 +92,6 @@ private:
     std::vector<SrsUdpMuxListener*> listeners;
     ISrsRtcServerHandler* handler;
     ISrsRtcServerHijacker* hijacker;
-    SrsConnectionManager* manager;
 public:
     SrsRtcServer();
     virtual ~SrsRtcServer();
@@ -123,10 +122,6 @@ public:
     // We start offering, create_session2 to generate offer, setup_session2 to handle answer.
     srs_error_t create_session2(SrsRequest* req, SrsSdp& local_sdp, const std::string& mock_eip, bool unified_plan, SrsRtcConnection** psession);
     srs_error_t setup_session2(SrsRtcConnection* session, SrsRequest* req, const SrsSdp& remote_sdp);
-    // Destroy the session and notify the callback.
-    void dispose(SrsRtcConnection* session);
-    // Destroy the session from server, without notify callback.
-    void destroy(SrsRtcConnection* session);
 public:
     void insert_into_id_sessions(const std::string& peer_id, SrsRtcConnection* session);
 public:
@@ -150,5 +145,8 @@ public:
     virtual void stop();
 };
 
+// Manager for RTC connections.
+extern SrsResourceManager* _srs_rtc_manager;
+
 #endif
 

trunk/src/app/srs_app_rtmp_conn.cpp

@@ -140,6 +140,11 @@ SrsRtmpConn::~SrsRtmpConn()
     srs_freep(security);
 }
 
+std::string SrsRtmpConn::desc()
+{
+    return "RtmpConn";
+}
+
 void SrsRtmpConn::dispose()
 {
     SrsTcpConnection::dispose();

trunk/src/app/srs_app_rtmp_conn.hpp

@@ -119,6 +119,9 @@ private:
 public:
     SrsRtmpConn(SrsServer* svr, srs_netfd_t c, std::string cip, int port);
     virtual ~SrsRtmpConn();
+// Interface ISrsResource.
+public:
+    virtual std::string desc();
 public:
     virtual void dispose();
 protected:

trunk/src/app/srs_app_rtsp.cpp

@@ -256,6 +256,16 @@ std::string SrsRtspConn::remote_ip()
     return "";
 }
 
+std::string SrsRtspConn::desc()
+{
+    return "RtspConn";
+}
+
+const SrsContextId& SrsRtspConn::get_id()
+{
+    return _srs_context->get_id();
+}
+
 srs_error_t SrsRtspConn::do_cycle()
 {
     srs_error_t err = srs_success;
@@ -712,7 +722,7 @@ SrsRtspCaster::SrsRtspCaster(SrsConfDirective* c)
     output = _srs_config->get_stream_caster_output(c);
     local_port_min = _srs_config->get_stream_caster_rtp_port_min(c);
     local_port_max = _srs_config->get_stream_caster_rtp_port_max(c);
-    manager = new SrsConnectionManager();
+    manager = new SrsResourceManager("CasterRTSP");
 }
 
 SrsRtspCaster::~SrsRtspCaster()

trunk/src/app/srs_app_rtsp.hpp

@@ -51,7 +51,7 @@ class SrsAudioFrame;
 class SrsSimpleStream;
 class SrsPithyPrint;
 class SrsSimpleRtmpClient;
-class SrsConnectionManager;
+class SrsResourceManager;
 
 // A rtp connection which transport a stream.
 class SrsRtpConn: public ISrsUdpHandler
@@ -144,7 +144,11 @@ public:
     virtual ~SrsRtspConn();
 public:
     virtual srs_error_t serve();
+// Interface ISrsConnection.
+public:
     virtual std::string remote_ip();
+    virtual const SrsContextId& get_id();
+    virtual std::string desc();
 private:
     virtual srs_error_t do_cycle();
 // internal methods
@@ -182,7 +186,7 @@ private:
     std::map<int, bool> used_ports;
 private:
     std::vector<SrsRtspConn*> clients;
-    SrsConnectionManager* manager;
+    SrsResourceManager* manager;
 public:
     SrsRtspCaster(SrsConfDirective* c);
     virtual ~SrsRtspCaster();

trunk/src/app/srs_app_server.cpp

@@ -656,7 +656,7 @@ SrsServer::SrsServer()
     pid_fd = -1;
     
     signal_manager = new SrsSignalManager(this);
-    conn_manager = new SrsConnectionManager();
+    conn_manager = new SrsResourceManager("RTMP/API");
     
     handler = NULL;
     ppid = ::getppid();
@@ -1575,7 +1575,7 @@ srs_error_t SrsServer::fd2conn(SrsListenerType type, srs_netfd_t stfd, SrsTcpCon
     return err;
 }
 
-void SrsServer::remove(ISrsConnection* c)
+void SrsServer::remove(ISrsResource* c)
 {
     SrsTcpConnection* conn = dynamic_cast<SrsTcpConnection*>(c);
 

trunk/src/app/srs_app_server.hpp

@@ -53,7 +53,7 @@ class SrsUdpListener;
 class SrsTcpListener;
 class SrsAppCasterFlv;
 class SrsRtspCaster;
-class SrsConnectionManager;
+class SrsResourceManager;
 class SrsGb28181Caster;
 
 
@@ -241,7 +241,7 @@ public:
 };
 
 // SRS RTMP server, initialize and listen, start connection service thread, destroy client.
-class SrsServer : virtual public ISrsReloadHandler, virtual public ISrsSourceHandler, virtual public IConnectionManager
+class SrsServer : virtual public ISrsReloadHandler, virtual public ISrsSourceHandler, virtual public ISrsResourceManager
 {
 private:
     // TODO: FIXME: rename to http_api
@@ -249,7 +249,7 @@ private:
     SrsHttpServer* http_server;
     SrsHttpHeartbeat* http_heartbeat;
     SrsIngester* ingester;
-    SrsConnectionManager* conn_manager;
+    SrsResourceManager* conn_manager;
 private:
     // The pid file fd, lock the file write when server is running.
     // @remark the init.d script should cleanup the pid file, when stop service,
@@ -342,12 +342,12 @@ public:
     virtual SrsHttpServeMux* api_server();
 private:
     virtual srs_error_t fd2conn(SrsListenerType type, srs_netfd_t stfd, SrsTcpConnection** pconn);
-// Interface IConnectionManager
+// Interface ISrsResourceManager
 public:
     // A callback for connection to remove itself.
     // When connection thread cycle terminated, callback this to delete connection.
     // @see SrsTcpConnection.on_thread_stop().
-    virtual void remove(ISrsConnection* c);
+    virtual void remove(ISrsResource* c);
 // Interface ISrsReloadHandler.
 public:
     virtual srs_error_t on_reload_listen();

trunk/src/app/srs_app_st.cpp

@@ -74,9 +74,9 @@ srs_error_t SrsDummyCoroutine::pull()
     return srs_error_new(ERROR_THREAD_DUMMY, "dummy pull");
 }
 
-SrsContextId SrsDummyCoroutine::cid()
+const SrsContextId& SrsDummyCoroutine::cid()
 {
-    return SrsContextId();
+    return _srs_context->get_id();
 }
 
 _ST_THREAD_CREATE_PFN _pfn_st_thread_create = (_ST_THREAD_CREATE_PFN)st_thread_create;
@@ -189,7 +189,7 @@ srs_error_t SrsSTCoroutine::pull()
     return srs_error_copy(trd_err);
 }
 
-SrsContextId SrsSTCoroutine::cid()
+const SrsContextId& SrsSTCoroutine::cid()
 {
     return cid_;
 }

trunk/src/app/srs_app_st.hpp

@@ -81,7 +81,7 @@ public:
     // @return a copy of error, which should be freed by user.
     //      NULL if not terminated and user should pull again.
     virtual srs_error_t pull() = 0;
-    virtual SrsContextId cid() = 0;
+    virtual const SrsContextId& cid() = 0;
 };
 
 // An empty coroutine, user can default to this object before create any real coroutine.
@@ -96,7 +96,7 @@ public:
     virtual void stop();
     virtual void interrupt();
     virtual srs_error_t pull();
-    virtual SrsContextId cid();
+    virtual const SrsContextId& cid();
 };
 
 // For utest to mock the thread create.
@@ -156,7 +156,7 @@ public:
     // @remark Return ERROR_THREAD_INTERRUPED when thread is interrupted.
     virtual srs_error_t pull();
     // Get the context id of thread.
-    virtual SrsContextId cid();
+    virtual const SrsContextId& cid();
 private:
     virtual srs_error_t cycle();
     static void* pfn(void* arg);

trunk/src/protocol/srs_service_conn.cpp

@@ -23,19 +23,27 @@
 
 #include <srs_service_conn.hpp>
 
-ISrsConnection::ISrsConnection()
+ISrsResource::ISrsResource()
 {
 }
 
-ISrsConnection::~ISrsConnection()
+ISrsResource::~ISrsResource()
+{
+}
+
+ISrsResourceManager::ISrsResourceManager()
 {
 }
 
-IConnectionManager::IConnectionManager()
+ISrsResourceManager::~ISrsResourceManager()
 {
 }
 
-IConnectionManager::~IConnectionManager()
+ISrsConnection::ISrsConnection()
+{
+}
+
+ISrsConnection::~ISrsConnection()
 {
 }
 

trunk/src/protocol/srs_service_conn.hpp

@@ -28,26 +28,39 @@
 
 #include <string>
 
-// The connection interface for all HTTP/RTMP/RTSP object.
-class ISrsConnection
+// The resource managed by ISrsResourceManager.
+class ISrsResource
 {
 public:
-    ISrsConnection();
-    virtual ~ISrsConnection();
+    ISrsResource();
+    virtual ~ISrsResource();
 public:
-    // Get remote ip address.
-    virtual std::string remote_ip() = 0;
+    // Get the context id of connection.
+    virtual const SrsContextId& get_id() = 0;
+    // The resource description, optional.
+    virtual std::string desc() = 0;
 };
 
-// The manager for connection.
-class IConnectionManager
+// The manager for resource.
+class ISrsResourceManager
 {
 public:
-    IConnectionManager();
-    virtual ~IConnectionManager();
+    ISrsResourceManager();
+    virtual ~ISrsResourceManager();
 public:
     // Remove then free the specified connection.
-    virtual void remove(ISrsConnection* c) = 0;
+    virtual void remove(ISrsResource* c) = 0;
+};
+
+// The connection interface for all HTTP/RTMP/RTSP object.
+class ISrsConnection : public ISrsResource
+{
+public:
+    ISrsConnection();
+    virtual ~ISrsConnection();
+public:
+    // Get remote ip address.
+    virtual std::string remote_ip() = 0;
 };
 
 #endif

trunk/src/utest/srs_utest_rtc.cpp

@@ -43,7 +43,7 @@ VOID TEST(KernelRTCTest, ConnectionManagerTest)
 
     // Normal scenario, free object by manager.
     if (true) {
-        SrsConnectionManager manager;
+        SrsResourceManager manager;
         HELPER_EXPECT_SUCCESS(manager.start());
         EXPECT_EQ(0, manager.size()); EXPECT_TRUE(manager.empty());
 
@@ -58,7 +58,7 @@ VOID TEST(KernelRTCTest, ConnectionManagerTest)
 
     // Coroutine switch context, signal is lost.
     if (true) {
-        SrsConnectionManager manager;
+        SrsResourceManager manager;
         HELPER_EXPECT_SUCCESS(manager.start());
         EXPECT_EQ(0, manager.size()); EXPECT_TRUE(manager.empty());
 

trunk/src/utest/srs_utest_service.cpp

@@ -54,6 +54,16 @@ MockSrsConnection::~MockSrsConnection()
     }
 }
 
+const SrsContextId& MockSrsConnection::get_id()
+{
+    return _srs_context->get_id();
+}
+
+std::string MockSrsConnection::desc()
+{
+    return "Mock";
+}
+
 std::string MockSrsConnection::remote_ip()
 {
     return "127.0.0.1";
@@ -1371,7 +1381,7 @@ VOID TEST(HTTPClientTest, HTTPClientUtility)
     }
 }
 
-class MockConnectionManager : public IConnectionManager
+class MockConnectionManager : public ISrsResourceManager
 {
 public:
     MockConnectionManager() {
@@ -1379,7 +1389,7 @@ public:
     virtual ~MockConnectionManager() {
     }
 public:
-    virtual void remove(ISrsConnection* /*c*/) {
+    virtual void remove(ISrsResource* /*c*/) {
     }
 };
 

trunk/src/utest/srs_utest_service.hpp

@@ -40,6 +40,8 @@ public:
 public:
     MockSrsConnection();
     virtual ~MockSrsConnection();
+    virtual const SrsContextId& get_id();
+    virtual std::string desc();
     virtual std::string remote_ip();
 };