优化遍历MediaSource接口性能

api/include/mk_events_objects.h

@@ -133,7 +133,8 @@ API_EXPORT void API_CALL mk_media_source_find(const char *schema,
                                               void *user_data,
                                               on_mk_media_source_find_cb cb);
 //MediaSource::for_each_media()
-API_EXPORT void API_CALL mk_media_source_for_each(void *user_data, on_mk_media_source_find_cb cb);
+API_EXPORT void API_CALL mk_media_source_for_each(void *user_data, on_mk_media_source_find_cb cb, const char *schema,
+                                                  const char *vhost, const char *app, const char *stream);
 
 ///////////////////////////////////////////HttpBody/////////////////////////////////////////////
 //HttpBody对象的C映射

api/source/mk_events_objects.cpp

@@ -238,11 +238,12 @@ API_EXPORT void API_CALL mk_media_source_find(const char *schema,
     cb(user_data, src.get());
 }
 
-API_EXPORT void API_CALL mk_media_source_for_each(void *user_data, on_mk_media_source_find_cb cb){
+API_EXPORT void API_CALL mk_media_source_for_each(void *user_data, on_mk_media_source_find_cb cb, const char *schema,
+                                                  const char *vhost, const char *app, const char *stream) {
     assert(cb);
-    MediaSource::for_each_media([&](const MediaSource::Ptr &src){
-        cb(user_data,src.get());
-    });
+    MediaSource::for_each_media([&](const MediaSource::Ptr &src) {
+        cb(user_data, src.get());
+    }, schema ? schema : "", vhost ? vhost : "", app ? app : "", stream ? stream : "");
 }
 
 ///////////////////////////////////////////HttpBody/////////////////////////////////////////////

server/WebApi.cpp

@@ -483,21 +483,9 @@ void installWebApi() {
     api_regist("/index/api/getMediaList",[](API_ARGS_MAP){
         CHECK_SECRET();
         //获取所有MediaSource列表
-        MediaSource::for_each_media([&](const MediaSource::Ptr &media){
-            if (!allArgs["schema"].empty() && allArgs["schema"] != media->getSchema()) {
-                return;
-            }
-            if (!allArgs["vhost"].empty() && allArgs["vhost"] != media->getVhost()) {
-                return;
-            }
-            if (!allArgs["app"].empty() && allArgs["app"] != media->getApp()) {
-                return;
-            }
-            if (!allArgs["stream"].empty() && allArgs["stream"] != media->getId()) {
-                return;
-            }
+        MediaSource::for_each_media([&](const MediaSource::Ptr &media) {
             val["data"].append(makeMediaSourceJson(*media));
-        });
+        }, allArgs["schema"], allArgs["vhost"], allArgs["app"], allArgs["stream"]);
     });
 
     //测试url http://127.0.0.1/index/api/isMediaOnline?schema=rtsp&vhost=__defaultVhost__&app=live&stream=obs
@@ -551,22 +539,10 @@ void installWebApi() {
         int count_hit = 0;
         int count_closed = 0;
         list<MediaSource::Ptr> media_list;
-        MediaSource::for_each_media([&](const MediaSource::Ptr &media){
-            if(!allArgs["schema"].empty() && allArgs["schema"] != media->getSchema()){
-                return;
-            }
-            if(!allArgs["vhost"].empty() && allArgs["vhost"] != media->getVhost()){
-                return;
-            }
-            if(!allArgs["app"].empty() && allArgs["app"] != media->getApp()){
-                return;
-            }
-            if(!allArgs["stream"].empty() && allArgs["stream"] != media->getId()){
-                return;
-            }
+        MediaSource::for_each_media([&](const MediaSource::Ptr &media) {
             ++count_hit;
             media_list.emplace_back(media);
-        });
+        }, allArgs["schema"], allArgs["vhost"], allArgs["app"], allArgs["stream"]);
 
         bool force = allArgs["force"].as<bool>();
         for(auto &media : media_list){

src/Common/MediaSource.cpp

@@ -206,7 +206,18 @@ bool MediaSource::stopSendRtp(const string &ssrc) {
     return listener->stopSendRtp(*this, ssrc);
 }
 
-void MediaSource::for_each_media(const function<void(const MediaSource::Ptr &src)> &cb) {
+static void do_for_each(const function<void(const MediaSource::Ptr &src)> &cb, weak_ptr<MediaSource> &ptr){
+    auto src = ptr.lock();
+    if (src) {
+        cb(src);
+    }
+}
+
+void MediaSource::for_each_media(const function<void(const MediaSource::Ptr &src)> &cb,
+                                 const string &schema,
+                                 const string &vhost,
+                                 const string &app,
+                                 const string &stream) {
     decltype(s_media_source_map) copy;
     {
         //拷贝s_media_source_map后再遍历，考虑到是高频使用的全局单例锁，并且在上锁时会执行回调代码
@@ -216,13 +227,31 @@ void MediaSource::for_each_media(const function<void(const MediaSource::Ptr &src
     }
 
     for (auto &pr0 : copy) {
+        //遍历schema
+        if (!schema.empty() && pr0.first != schema) {
+            continue;
+        }
         for (auto &pr1 : pr0.second) {
+            //遍历vhost
+            if (!vhost.empty() && pr1.first != vhost) {
+                continue;
+            }
             for (auto &pr2 : pr1.second) {
-                for (auto &pr3 : pr2.second) {
-                    auto src = pr3.second.lock();
-                    if(src){
-                        cb(src);
+                //遍历app
+                if (!app.empty() && pr2.first != app) {
+                    continue;
+                }
+                if (!stream.empty()) {
+                    //指定stream id, 那么不用遍历stream
+                    auto it = pr2.second.find(stream);
+                    if (it != pr2.second.end()) {
+                        do_for_each(cb, it->second);
                     }
+                    continue;
+                }
+                for (auto &pr3 : pr2.second) {
+                    //未指定stream id, 遍历stream
+                    do_for_each(cb, pr3.second);
                 }
             }
         }

src/Common/MediaSource.h

@@ -273,7 +273,11 @@ public:
     // 异步查找流
     static void findAsync(const MediaInfo &info, const std::shared_ptr<TcpSession> &session, const function<void(const Ptr &src)> &cb);
     // 遍历所有流
-    static void for_each_media(const function<void(const Ptr &src)> &cb);
+    static void for_each_media(const function<void(const Ptr &src)> &cb,
+                               const string &schema = "",
+                               const string &vhost = "",
+                               const string &app = "",
+                               const string &stream = "");
     // 从mp4文件生成MediaSource
     static MediaSource::Ptr createFromMP4(const string &schema, const string &vhost, const string &app, const string &stream, const string &file_path = "", bool check_app = true);
 

src/Shell/ShellCMD.h

@@ -23,22 +23,6 @@ public:
     CMD_media(){
         _parser.reset(new OptionParser([](const std::shared_ptr<ostream> &stream,mINI &ini){
             MediaSource::for_each_media([&](const MediaSource::Ptr &media){
-                if(!ini["schema"].empty() && ini["schema"] != media->getSchema()){
-                    //筛选协议不匹配
-                    return;
-                }
-                if(!ini["vhost"].empty() && ini["vhost"] != media->getVhost()){
-                    //筛选虚拟主机不匹配
-                    return;
-                }
-                if(!ini["app"].empty() && ini["app"] != media->getApp()){
-                    //筛选应用名不匹配
-                    return;
-                }
-                if(!ini["stream"].empty() && ini["stream"] != media->getId()){
-                    //流id不匹配
-                    return;
-                }
                 if(ini.find("list") != ini.end()){
                     //列出源
                     (*stream) << "\t"
@@ -78,7 +62,7 @@ public:
                 },false);
 
 
-            });
+            }, ini["schema"], ini["vhost"], ini["app"], ini["stream"]);
         }));
         (*_parser) << Option('k', "kick", Option::ArgNone,nullptr,false, "踢出媒体源", nullptr);
         (*_parser) << Option('l', "list", Option::ArgNone,nullptr,false, "列出媒体源", nullptr);