Stop Dynamips hypervisors used by devices before the project is closed.

This is to avoid locked files by hypervisors preventing temporary project working directories to be deleted.

gns3server/handlers/api/project_handler.py

@@ -121,6 +121,8 @@ class ProjectHandler:
 
         pm = ProjectManager.instance()
         project = pm.get_project(request.match_info["project_id"])
+        for module in MODULES:
+            yield from module.instance().project_closing(project)
         yield from project.close()
         for module in MODULES:
             yield from module.instance().project_closed(project)

gns3server/modules/base_manager.py

@@ -234,6 +234,16 @@ class BaseManager:
             vm.close()
         return vm
 
+    @asyncio.coroutine
+    def project_closing(self, project):
+        """
+        Called when a project is about to be closed.
+
+        :param project: Project instance
+        """
+
+        pass
+
     @asyncio.coroutine
     def project_closed(self, project):
         """

gns3server/modules/dynamips/__init__.py

@@ -136,9 +136,9 @@ class Dynamips(BaseManager):
                     continue
 
     @asyncio.coroutine
-    def project_closed(self, project):
+    def project_closing(self, project):
         """
-        Called when a project is closed.
+        Called when a project is about to be closed.
 
         :param project: Project instance
         """
@@ -157,7 +157,15 @@ class Dynamips(BaseManager):
                 except Exception as e:
                     log.error("Could not delete device {}".format(e), exc_info=1)
 
-        # delete useless files
+    @asyncio.coroutine
+    def project_closed(self, project):
+        """
+        Called when a project is closed.
+
+        :param project: Project instance
+        """
+
+        # delete useless Dynamips files
         project_dir = project.module_working_directory(self.module_name.lower())
         files = glob.glob(os.path.join(project_dir, "*.ghost"))
         files += glob.glob(os.path.join(project_dir, "*_lock"))