Fix high CPU usage issue

webserver/core/interactive_server.cpp

@@ -158,6 +158,7 @@ int waitForClient_interactive(int socket_fd)
             SetSocketBlockingEnabled(client_fd, true);
             break;
         }
+        sleepms(100);
     }
 
     return client_fd;

webserver/core/ladder.h

@@ -104,6 +104,7 @@ extern int ignored_int_outputs[];
 
 //main.cpp
 void sleep_until(struct timespec *ts, int delay);
+void sleepms(int milliseconds);
 void log(unsigned char *logmsg);
 bool pinNotPresent(int *ignored_vector, int vector_size, int pinNumber);
 extern uint8_t run_openplc;

webserver/core/main.cpp

@@ -62,6 +62,18 @@ void sleep_until(struct timespec *ts, int delay)
     clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, ts,  NULL);
 }
 
+//-----------------------------------------------------------------------------
+// Helper function - Makes the running thread sleep for the ammount of time
+// in milliseconds
+//-----------------------------------------------------------------------------
+void sleepms(int milliseconds)
+{
+	struct timespec ts;
+	ts.tv_sec = milliseconds / 1000;
+	ts.tv_nsec = (milliseconds % 1000) * 1000000;
+	nanosleep(&ts, NULL);
+}
+
 //-----------------------------------------------------------------------------
 // Helper function - Logs messages and print them on the console
 //-----------------------------------------------------------------------------

webserver/core/server.cpp

@@ -150,6 +150,7 @@ int waitForClient(int socket_fd)
             SetSocketBlockingEnabled(client_fd, true);
             break;
         }
+        sleepms(100);
     }
 
     return client_fd;