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Add check if x1plusd is already running #373

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Merged
merged 4 commits into from
Oct 27, 2024
Merged

Add check if x1plusd is already running #373

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fc0c997
completed TODO
shitwolfymakes Sep 24, 2024
2c43b89
fix typo
shitwolfymakes Sep 24, 2024
51b0786
added constant
shitwolfymakes Oct 22, 2024
8700287
Added catch-all exception just in case
shitwolfymakes Oct 22, 2024
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34 changes: 30 additions & 4 deletions images/cfw/opt/x1plus/lib/python/x1plus/services/x1plusd/__main__.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
import asyncio
import logging, logging.handlers
import os
import setproctitle

from . import X1PlusDaemon, logger
Expand All @@ -18,6 +19,8 @@
ch.setFormatter(logging.Formatter("[%(asctime)s] %(name)s: %(levelname)s: %(message)s"))
logger.addHandler(ch)

PID_FILE = '/var/run/x1plusd.pid'


def exceptions(loop, ctx):
logger.error(f"exception in coroutine: {ctx['message']} {ctx.get('exception', '')}")
Expand All @@ -32,13 +35,36 @@ async def start():
x1plusd = await X1PlusDaemon.create()
await x1plusd.start()

# TODO: check if we are already running
loop = asyncio.new_event_loop()
loop.set_exception_handler(exceptions)
loop.create_task(start())

def is_already_running():
try:
with open(PID_FILE, 'r') as f:
pid = int(f.read().strip())
os.kill(pid, 0) # Check if the process is still running
return True
except (IOError, ValueError, OSError):
return False


# catchall exception
try:
# Check if we are already running
if is_already_running():
logger.error("x1plusd is already running. Exiting.")
exit(1)

# Create the PID file
with open(PID_FILE, 'w') as f:
f.write(str(os.getpid()))

loop = asyncio.new_event_loop()
loop.set_exception_handler(exceptions)
loop.create_task(start())
loop.run_forever()
except Exception as e:
logger.error(f"Exception occurred: {e}")
finally:
logger.error("x1plusd event loop has terminated!")
loop.run_until_complete(loop.shutdown_asyncgens())
os.unlink(PID_FILE)
loop.close()
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