retry checking if Kodi's JSON-RPC is enabled, fixes #712

resources/site-packages/quasar/daemon.py

@@ -99,20 +99,34 @@ def clear_fd_inherit_flags():
             if not windll.kernel32.SetHandleInformation(hd, HANDLE_FLAG_INHERIT, 0):
                 log.error("Error clearing inherit flag, disk file handle %x" % hd)
 
-def start_quasard(**kwargs):
-    # Make sure all other quasard instances are closed
-    shutdown()
-
+def jsonrpc_enabled(notify=False):
     try:
         s = socket.socket()
         s.connect(('127.0.0.1', 9090))
         s.close()
         del s
+        return True
     except Exception as e:
         log.error(repr(e))
-        dialog = xbmcgui.Dialog()
-        dialog.ok("Quasar", getLocalizedString(30199))
-        return False
+        if notify:
+            dialog = xbmcgui.Dialog()
+            dialog.ok("Quasar", getLocalizedString(30199))
+    return False
+
+def start_quasard(**kwargs):
+    # Make sure all other quasard instances are closed
+    shutdown()
+
+    jsonrpc_failures = 0
+    while jsonrpc_enabled() is False:
+        jsonrpc_failures += 1
+        if jsonrpc_failures > 1:
+            time.sleep(5)
+            if not jsonrpc_enabled(True):
+                return False
+            else:
+                break
+        time.sleep(3)
 
     quasar_dir, quasar_binary = get_quasar_binary()