Prevent infinite loop on one time run (#20)

Closes #20

inverter.cpp

@@ -152,6 +152,7 @@ bool cInverter::query(const char *cmd, int replysize) {
 
 void cInverter::poll() {
     int n,j;
+    extern const bool runOnce;
 
     while (true) {
 
@@ -193,6 +194,10 @@ void cInverter::poll() {
             }
         }
         if (quit_thread) return;
+        if (runOnce) {
+            ups_leave = true;
+            exit(0);
+        }
         sleep(5);
     }
 }

main.cpp

@@ -27,6 +27,7 @@
 
 bool debugFlag = false;
 bool runOnce = false;
+bool ups_leave = false;
 
 cInverter *ups = NULL;
 
@@ -291,14 +292,14 @@ int main(int argc, char* argv[]) {
                 // Delete reply string so we can update with new data when polled again...
                 delete reply1;
                 delete reply2;
-
-                if(runOnce) {
-                    ups->terminateThread();
-                    // Do once and exit instead of loop endlessly
-                    lprintf("INVERTER: All queries complete, exiting loop.");
-                    exit(0);
-                }
             }
+
+        }
+        if(ups_leave) {
+            ups->terminateThread();
+            // Do once and exit instead of loop endlessly
+            lprintf("INVERTER: All queries complete, exiting loop.");
+            exit(0);
         }
 
         sleep(1);

main.h

@@ -5,6 +5,8 @@
 #include "inverter.h"
 
 extern bool debugFlag;
+extern bool ups_leave;
+
 extern atomic_bool ups_data_changed;
 
 extern atomic_bool ups_status_changed;