Add threading task strategy

eos/core/tasks/threading.py

@@ -0,0 +1,51 @@
+#   Eos - Verifiable elections
+#   Copyright © 2017-2019  RunasSudo (Yingtong Li)
+#
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU Affero General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU Affero General Public License for more details.
+#
+#   You should have received a copy of the GNU Affero General Public License
+#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from eos.core.tasks import *
+from eos.core.objects import *
+
+import threading
+
+class ThreadingRunStrategy(RunStrategy):
+	def run(self, task):
+		def _run():
+			task.status = TaskStatus.PROCESSING
+			task.started_at = DateTimeField.now()
+			task.save()
+			
+			try:
+				task._run()
+				task.status = TaskStatus.COMPLETE
+				task.completed_at = DateTimeField.now()
+				task.save()
+				
+				task.complete()
+			except Exception as e:
+				task.status = TaskStatus.FAILED
+				task.completed_at = DateTimeField.now()
+				if is_python:
+					#__pragma__('skip')
+					import traceback
+					#__pragma__('noskip')
+					task.messages.append(traceback.format_exc())
+				else:
+					task.messages.append(repr(e))
+				task.save()
+				
+				task.error()
+		
+		thread = threading.Thread(target=_run, args=())
+		thread.start()