修复死锁问题:#486

src/Rtp/RtpSelector.cpp

@@ -72,6 +72,8 @@ void RtpSelector::createTimer() {
 }
 
 void RtpSelector::delProcess(const string &stream_id,const RtpProcess *ptr) {
+    RtpProcess::Ptr process;
+    {
         lock_guard<decltype(_mtx_map)> lck(_mtx_map);
         auto it = _map_rtp_process.find(stream_id);
         if (it == _map_rtp_process.end()) {
@@ -80,12 +82,15 @@ void RtpSelector::delProcess(const string &stream_id,const RtpProcess *ptr) {
         if (it->second->getProcess().get() != ptr) {
             return;
         }
-    auto process = it->second->getProcess();
+        process = it->second->getProcess();
         _map_rtp_process.erase(it);
+    }
     process->onDetach();
 }
 
 void RtpSelector::onManager() {
+    List<RtpProcess::Ptr> clear_list;
+    {
         lock_guard<decltype(_mtx_map)> lck(_mtx_map);
         for (auto it = _map_rtp_process.begin(); it != _map_rtp_process.end();) {
             if (it->second->getProcess()->alive()) {
@@ -93,10 +98,14 @@ void RtpSelector::onManager() {
                 continue;
             }
             WarnL << "RtpProcess timeout:" << it->first;
-        auto process = it->second->getProcess();
+            clear_list.emplace_back(it->second->getProcess());
             it = _map_rtp_process.erase(it);
-        process->onDetach();
         }
+    }
+
+    clear_list.for_each([](const RtpProcess::Ptr &process) {
+        process->onDetach();
+    });
 }
 
 RtpSelector::RtpSelector() {