evdameon, evcloudsvc: subsystem monitor thread and defered uploading

opencv-motion-detect/evdaemon.cpp

@@ -379,7 +379,12 @@ private:
                         spdlog::info("evdaemon {} failed to create subsystem {}", devSn, k);
                     }
                 }
+
                 this->bColdStart = false;
+                {
+                    lock_guard<mutex> lock(this->mutSubMonitor);
+                    this->cvSubMonitor.notify_all();
+                }
             }
             else {
                 // calc diff
@@ -1076,8 +1081,11 @@ public:
             while(true){
                 {
                     unique_lock<mutex> lk(this->mutSubMonitor);
-                    this->cvSubMonitor.wait_for(lk, 5s, [this] {return !this->bColdStart;});
+                    this->cvSubMonitor.wait(lk, [this] {return !this->bColdStart;});
+                }
 
+                /// anti frequent restart
+                this_thread::sleep_for(10s);
                 vector<string> tmp;
                 json unkown;
                 vector<string> terms;
@@ -1145,7 +1153,6 @@ public:
                     }
                 }
             }
-            }
         });
 
         this->thIdMain = this_thread::get_id();