enhencement: timeout on receive configuration for daemon

opencv-motion-detect/evpuller.cpp

@@ -464,6 +464,11 @@ public:
             drport = strEnv;
         }
 
+        strEnv = getenv("LOGV");
+        if(strEnv != nullptr) {
+            spdlog::set_level(spdlog::level::debug);
+        }
+
         strEnv = getenv("PEERID");
         if(strEnv != nullptr) {
             selfId = strEnv;
@@ -490,12 +495,16 @@ public:
             spdlog::error("evpuller {} failed to setup dealer {}", selfId, addr);
             exit(1);
         }
+        spdlog::info("evpuller {} setup dealer to daemon OK", selfId);
 
         ret = zmqhelper::recvConfigMsg(pDaemon, config, addr, selfId);
         if(ret != 0) {
             spdlog::error("evpuller {} failed to receive configration message {}", selfId, addr);
         }
+
+        spdlog::info("evpuller {} receive config from daemon OK", selfId);
         init();
+        spdlog::info("evpuller {} init OK", selfId);
         
         thEdgeMsgHandler = thread([this] {
             while(true)

opencv-motion-detect/inc/zmqhelper.cpp

@@ -171,11 +171,17 @@ int setupDealer(void **ctx, void **s, string addr, string ident, int timeout) {
 /// @return 0 success, otherwise failed.
 int recvConfigMsg(void *s, json &config, string addr, string ident){
     bool bConfigGot = false;
-    while(!bConfigGot){
+    auto t = thread([&](){
+        this_thread::sleep_for(chrono::seconds(5));
+        if(bConfigGot == false){
+            spdlog::error("{} failed receive config from evdaemon", ident);
+            exit(1);
+        }
+    });
     auto v = zmqhelper::z_recv_multiple(s);
     if(v.size() != 3) {
-            spdlog::error("{} invalid msg from daemon: {}", ident, addr);
-            return -1;
+            spdlog::error("{} received invalid msg from evdaemon", ident);
+            exit(1);
     }
 
     spdlog::debug("{} configuration msg received: {} {} {}", ident, body2str(v[0]), body2str(v[1]), body2str(v[2]));
@@ -188,11 +194,11 @@ int recvConfigMsg(void *s, json &config, string addr, string ident){
         bConfigGot = true;
     }catch(exception &e) {
         spdlog::error("{} invalid config msg from daemon {}, {}", ident, addr, e.what());
-            return -1;
-        }
     }
 
-    return 0;
+    t.join();
+
+    return bConfigGot? 0: -1;
 }