add on_pause() and on_resume() for module - use in rest_api.py

modules/rest_api.py

@@ -175,17 +175,27 @@ class Module(ModuleManager.BaseModule):
 
         self.httpd = None
         if self.bot.get_setting("rest-api", False):
-            port = int(self.bot.config.get("api-port", str(DEFAULT_PORT)))
-            self.httpd = BitBotIPv6HTTPd(("::1", port), Handler)
+            self._start_httpd()
 
-            self.thread = threading.Thread(target=self.httpd.serve_forever)
-            self.thread.daemon = True
-            self.thread.start()
+    def _start_httpd(self):
+        port = int(self.bot.config.get("api-port", str(DEFAULT_PORT)))
+        self.httpd = BitBotIPv6HTTPd(("::1", port), Handler)
 
-    def unload(self):
+        self.thread = threading.Thread(target=self.httpd.serve_forever)
+        self.thread.daemon = True
+        self.thread.start()
+    def _stop_httpd(self):
         if self.httpd:
             self.httpd.shutdown()
 
+    def on_resume(self):
+        self._start_httpd()
+
+    def unload(self):
+        self._stop_httpd()
+    def on_pause(self):
+        self._stop_httpd()
+
     @utils.hook("received.command.apikey")
     @utils.kwarg("private_only", True)
     @utils.kwarg("min_args", 1)

src/ModuleManager.py

@@ -60,6 +60,11 @@ class BaseModule(object):
     def unload(self):
         pass
 
+    def on_pause(self):
+        pass
+    def on_resume(self):
+        pass
+
     def command_line(self, args: str):
         pass
 
@@ -381,6 +386,9 @@ class ModuleManager(object):
         old_modules = self.modules
         self.modules = {}
 
+        for module in old_modules.values():
+            module.module.on_pause()
+
         failed = None
         for definition in loadable:
             try:
@@ -393,6 +401,8 @@ class ModuleManager(object):
             for module in self.modules.values():
                 self._unload_module(module)
             self.modules = old_modules
+            for module in old_modules.values():
+                module.module.on_resume()
 
             definition, exception = failed
             return TryReloadResult(False,