fix #217, remove timeout recv, support 7.5k+ 250kbps clients. 2.0.30.

@@ -445,11 +445,12 @@ Supported operating systems and hardware:
 [CN](https://github.com/winlinvip/simple-rtmp-server/wiki/v2_CN_SrsLibrtmp#publish-h264-raw-data),
 [EN](https://github.com/winlinvip/simple-rtmp-server/wiki/v2_EN_SrsLibrtmp#publish-h264-raw-data)
 ) by srs-librtmp.
-1. Support [6k+ clients](https://github.com/winlinvip/simple-rtmp-server/issues/194), 4Gbps per process.
+1. Support [6k+ clients](https://github.com/winlinvip/simple-rtmp-server/issues/194), 3Gbps per process.
 1. Suppport [English wiki](https://github.com/winlinvip/simple-rtmp-server/wiki/v1_EN_Home).
 1. Research and simplify st, [bug #182](https://github.com/winlinvip/simple-rtmp-server/issues/182).
 1. Support compile [srs-librtmp on windows](https://github.com/winlinvip/srs.librtmp), 
 [bug #213](https://github.com/winlinvip/simple-rtmp-server/issues/213).
+1. Support [7.5k+ clients](https://github.com/winlinvip/simple-rtmp-server/issues/217), 4Gbps per process.
 1. [no-plan] Support <500ms latency, FRSC(Fast RTMP-compatible Stream Channel tech).
 1. [no-plan] Support RTMP 302 redirect [#92](https://github.com/winlinvip/simple-rtmp-server/issues/92).
 1. [no-plan] Support multiple processes, for both origin and edge
@@ -482,6 +483,7 @@ Supported operating systems and hardware:
 * 2013-10-17, Created.<br/>
 
 ## History
+* v2.0, 2014-11-22, fix [#217](https://github.com/winlinvip/simple-rtmp-server/issues/217), remove timeout recv, support 7.5k+ 250kbps clients. 2.0.30.
 * v2.0, 2014-11-21, srs-librtmp add rtmp prefix for rtmp/utils/human apis. 2.0.29.
 * v2.0, 2014-11-21, refine examples of srs-librtmp, add srs_print_rtmp_packet. 2.0.28.
 * v2.0, 2014-11-20, fix [#212](https://github.com/winlinvip/simple-rtmp-server/issues/212), support publish audio raw frames. 2.0.27
@@ -700,6 +702,7 @@ Performance benchmark history, on virtual box:
 * 2014-11-12, SRS 2.0.14,  2700clients, 69%CPU, 59MB.
 * 2014-11-12, SRS 2.0.14,  3500clients, 95%CPU, 78MB.
 * 2014-11-13, SRS 2.0.15,  6000clients, 82%CPU, 203MB. (500 publishers).
+* 2014-11-22, SRS 2.0.30,  7500clients, 87%CPU, 320MB. 
 
 Latest benchmark(2014-07-12):
 

@@ -388,7 +388,8 @@ if [ $SRS_EXPORT_LIBRTMP_PROJECT = NO ]; then
             "srs_app_thread" "srs_app_bandwidth" "srs_app_st" "srs_app_log" "srs_app_config" 
             "srs_app_pithy_print" "srs_app_reload" "srs_app_http_api" "srs_app_http_conn" "srs_app_http_hooks" 
             "srs_app_json" "srs_app_ingest" "srs_app_ffmpeg" "srs_app_utility" "srs_app_dvr" "srs_app_edge"
-            "srs_app_kbps" "srs_app_heartbeat" "srs_app_empty" "srs_app_http_client" "srs_app_avc_aac")
+            "srs_app_kbps" "srs_app_heartbeat" "srs_app_empty" "srs_app_http_client" "srs_app_avc_aac"
+            "srs_app_recv_thread")
     APP_INCS="src/app"; MODULE_DIR=${APP_INCS} . auto/modules.sh
     APP_OBJS="${MODULE_OBJS[@]}"
 fi

+/*
+The MIT License (MIT)
+
+Copyright (c) 2013-2014 winlin
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#include <srs_app_recv_thread.hpp>
+
+#include <srs_protocol_rtmp.hpp>
+#include <srs_protocol_stack.hpp>
+
+SrsRecvThread::SrsRecvThread(SrsRtmpServer* rtmp_sdk)
+{
+    rtmp = rtmp_sdk;
+    trd = new SrsThread(this, 0, true);
+}
+
+SrsRecvThread::~SrsRecvThread()
+{
+    // stop recv thread.
+    stop();
+    
+    // destroy the thread.
+    srs_freep(trd);
+    
+    // clear all messages.
+    std::vector<SrsMessage*>::iterator it;
+    for (it = queue.begin(); it != queue.end(); ++it) {
+        SrsMessage* msg = *it;
+        srs_freep(msg);
+    }
+    queue.clear();
+}
+
+bool SrsRecvThread::empty()
+{
+    return queue.empty();
+}
+
+SrsMessage* SrsRecvThread::pump()
+{
+    srs_assert(!queue.empty());
+    
+    SrsMessage* msg = *queue.begin();
+    
+    queue.erase(queue.begin());
+    
+    return msg;
+}
+
+int SrsRecvThread::start()
+{
+    return trd->start();
+}
+
+void SrsRecvThread::stop()
+{
+    trd->stop();
+}
+
+int SrsRecvThread::cycle()
+{
+    int ret = ERROR_SUCCESS;
+    
+    SrsMessage* msg = NULL;
+    
+    if ((ret = rtmp->recv_message(&msg)) != ERROR_SUCCESS) {
+        if (!srs_is_client_gracefully_close(ret)) {
+            srs_error("recv client control message failed. ret=%d", ret);
+        }
+        
+        // we use no timeout to recv, should never got any error.
+        trd->stop_loop();
+        
+        return ret;
+    }
+    srs_verbose("play loop recv message. ret=%d", ret);
+    
+    return ret;
+}
+

+/*
+The MIT License (MIT)
+
+Copyright (c) 2013-2014 winlin
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#ifndef SRS_APP_RECV_THREAD_HPP
+#define SRS_APP_RECV_THREAD_HPP
+
+/*
+#include <srs_app_recv_thread.hpp>
+*/
+
+#include <srs_core.hpp>
+
+#include <vector>
+
+#include <srs_app_thread.hpp>
+
+class SrsRtmpServer;
+class SrsMessage;
+
+/**
+* the recv thread used to replace the timeout recv,
+* which hurt performance for the epoll_ctrl is frequently used.
+* @see: SrsRtmpConn::playing
+* @see: https://github.com/winlinvip/simple-rtmp-server/issues/217
+*/
+class SrsRecvThread : public ISrsThreadHandler
+{
+private:
+    SrsThread* trd;
+    SrsRtmpServer* rtmp;
+    std::vector<SrsMessage*> queue;
+public:
+    SrsRecvThread(SrsRtmpServer* rtmp_sdk);
+    virtual ~SrsRecvThread();
+public:
+    virtual bool empty();
+    virtual SrsMessage* pump();
+public:
+    virtual int start();
+    virtual void stop();
+    virtual int cycle();
+};
+
+#endif
+

@@ -48,6 +48,7 @@ using namespace std;
 #include <srs_app_utility.hpp>
 #include <srs_protocol_msg_array.hpp>
 #include <srs_protocol_amf0.hpp>
+#include <srs_app_recv_thread.hpp>
 
 // when stream is busy, for example, streaming is already
 // publishing, when a new client to request to publish,
@@ -493,76 +494,6 @@ int SrsRtmpConn::check_vhost()
     return ret;
 }
 
-class IsolateRecvThread : public ISrsThreadHandler
-{
-private:
-    SrsThread* trd;
-    SrsRtmpServer* rtmp;
-    std::vector<SrsMessage*> queue;
-public:
-    IsolateRecvThread(SrsRtmpServer* rtmp_sdk)
-    {
-        rtmp = rtmp_sdk;
-        trd = new SrsThread(this, 0, true);
-    }
-    virtual ~IsolateRecvThread()
-    {
-        // stop recv thread.
-        stop();
-        
-        // destroy the thread.
-        srs_freep(trd);
-        
-        // clear all messages.
-        std::vector<SrsMessage*>::iterator it;
-        for (it = queue.begin(); it != queue.end(); ++it) {
-            SrsMessage* msg = *it;
-            srs_freep(msg);
-        }
-        queue.clear();
-    }
-public:
-    virtual bool empty()
-    {
-        return queue.empty();
-    }
-    virtual SrsMessage* pump()
-    {
-        SrsMessage* msg = *queue.begin();
-        queue.erase(queue.begin());
-        return msg;
-    }
-public:
-    virtual int start()
-    {
-        return trd->start();
-    }
-    virtual void stop()
-    {
-        trd->stop();
-    }
-    virtual int cycle()
-    {
-        int ret = ERROR_SUCCESS;
-        
-        SrsMessage* msg = NULL;
-        
-        if ((ret = rtmp->recv_message(&msg)) != ERROR_SUCCESS) {
-            if (!srs_is_client_gracefully_close(ret)) {
-                srs_error("recv client control message failed. ret=%d", ret);
-            }
-            
-            // we use no timeout to recv, should never got any error.
-            trd->stop_loop();
-            
-            return ret;
-        }
-        srs_verbose("play loop recv message. ret=%d", ret);
-        
-        return ret;
-    }
-};
-
 int SrsRtmpConn::playing(SrsSource* source)
 {
     int ret = ERROR_SUCCESS;
@@ -581,7 +512,7 @@ int SrsRtmpConn::playing(SrsSource* source)
     
     // use isolate thread to recv, 
     // start isolate recv thread.
-    IsolateRecvThread trd(rtmp);
+    SrsRecvThread trd(rtmp);
     if ((ret = trd.start()) != ERROR_SUCCESS) {
         srs_error("start isolate recv thread failed. ret=%d", ret);
         return ret;
@@ -600,7 +531,7 @@ int SrsRtmpConn::playing(SrsSource* source)
     return ret;
 }
 
-int SrsRtmpConn::do_playing(SrsSource* source, IsolateRecvThread* trd)
+int SrsRtmpConn::do_playing(SrsSource* source, SrsRecvThread* trd)
 {
     int ret = ERROR_SUCCESS;
     

@@ -49,7 +49,7 @@ class SrsBandwidth;
 class SrsKbps;
 class SrsRtmpClient;
 class SrsSharedPtrMessage;
-class IsolateRecvThread;
+class SrsRecvThread;
 
 /**
 * the client provides the main logic control for RTMP clients.
@@ -89,7 +89,7 @@ private:
     virtual int stream_service_cycle();
     virtual int check_vhost();
     virtual int playing(SrsSource* source);
-    virtual int do_playing(SrsSource* source, IsolateRecvThread* trd);
+    virtual int do_playing(SrsSource* source, SrsRecvThread* trd);
     virtual int fmle_publishing(SrsSource* source);
     virtual int do_fmle_publishing(SrsSource* source);
     virtual int flash_publishing(SrsSource* source);

@@ -31,7 +31,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 // current release version
 #define VERSION_MAJOR       2
 #define VERSION_MINOR       0
-#define VERSION_REVISION    29
+#define VERSION_REVISION    30
 // server info.
 #define RTMP_SIG_SRS_KEY "SRS"
 #define RTMP_SIG_SRS_ROLE "origin/edge server"

@@ -92,6 +92,8 @@ file
 	..\app\srs_app_kbps.cpp,
 	..\app\srs_app_log.hpp,
 	..\app\srs_app_log.cpp,
+	..\app\srs_app_recv_thread.hpp,
+	..\app\srs_app_recv_thread.cpp,
 	..\app\srs_app_refer.hpp,
 	..\app\srs_app_refer.cpp,
 	..\app\srs_app_reload.hpp,