improved signal handling

cpu_governor_auto_adjust/config.py

@@ -22,9 +22,15 @@ class TriggerTuple(NamedTuple):
 
 
 class Config:
-    def __init__(self, basepath: Path) -> None:
+    def __init__(self, _basepath: Optional[Path] = None) -> None:
-        self.basepath = basepath
+        self._basepath = _basepath
         self.config = ArgumentsParser().parser.config
+        
+    @cached_property
+    def basepath(self) -> Path:
+        if self._basepath is None:
+            return Path(__file__).parent
+        return self._basepath
     
     @cached_property
     def root(self) -> etree._ElementTree:

cpu_governor_auto_adjust/cpu_governor_auto_adjust.py

@@ -15,8 +15,8 @@ def main() -> None:
 
 
 async def _main() -> None:
-    basepath = Path(__file__).parent.resolve()
+    cwd = Path.cwd()
-    config = Config(basepath)
+    config = Config(cwd)
     log = getLogger('main', loglevel=config.loglevel.upper())
     if config.testmode:
         log.warning("starting in testmode, cpu adjustments have been disabled")

cpu_governor_auto_adjust/schedule.py

@@ -3,15 +3,16 @@ from cpu_governor_auto_adjust.config import Config
 from cpu_governor_auto_adjust.trigger import Trigger
 from cpu_governor_auto_adjust.governor import GovernorControl, Governor, _governor_list
 import asyncio
+import signal
 from asyncio import Task
-from functools import cached_property
+from functools import cached_property, partial
 
 
 class TriggerScheduler(AppClass):
     def __init__(self, _config: Config) -> None:
         super().__init__(_config)
-        self.tasks: list[Task] = []
         self.running_triggers: list[Trigger] = []
+        self.loop = asyncio.get_event_loop()
         
     @cached_property
     def governor_control(self) -> GovernorControl:
@@ -44,24 +45,34 @@ class TriggerScheduler(AppClass):
     def start_trigger(self, _trigger: Trigger) -> None:
         """Start a new trigger."""
         if _trigger.config.type == "callback":
-            task = asyncio.create_task(self.callback_trigger(_trigger))
+            self.loop.create_task(self.callback_trigger(_trigger))
         else:
-            task = asyncio.create_task(self.run_once_trigger(_trigger))
+            self.loop.create_task(self.run_once_trigger(_trigger))
         self.running_triggers.append(_trigger)
-        self.tasks.append(task)
 
     async def stop_triggers(self) -> None:
         """Stop all triggers."""
-        for task in self.tasks:
+        tasks = [t for t in asyncio.all_tasks() if t is not asyncio.current_task()]
+        for task in tasks:
+            self.log.debug("canceling trigger task: %s", task.get_coro())
             task.cancel()
-        await asyncio.gather(*self.tasks, return_exceptions=True)
+        await asyncio.gather(*tasks, return_exceptions=True)
+        self.loop.stop()
 
     async def run(self) -> None:
         """Run the scheduler and keep it alive until stopped."""
+                
+        def signal_handler(sig):
+            self.log.info("received signal: %s", sig)
+            self.log.info("Exiting, stopping all triggers")
+            self.loop.create_task(self.stop_triggers())
+        
+        for sig in [signal.SIGINT, signal.SIGTERM]:
+            self.loop.add_signal_handler(sig, partial(signal_handler, sig=signal.SIGINT))
+
         try:
             while True:
                 self.establish_preferred_governor()
                 await asyncio.sleep(1)  # Keep the main function alive
         except asyncio.exceptions.CancelledError:
-            self.log.info("Exiting, stopping all triggers")
+            pass
-            await self.stop_triggers()

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "cpu_governor_auto_adjust"
-version = "0.1.11"
+version = "0.1.13"
 description = "This application has been developed to automatically change cpu governor based on certain triggers."
 authors = [
     { name = "Martin Reurekas", email = "martin@semrks.nl" }