import logging
import os
+import platform
import signal
import threading
import sys
@background_thread
def watch_for_cancel(terminate_event: threading.Event) -> None:
+ if platform.node() == 'VIDEO-COMPUTER':
+ logger.warning('Background thread not allowed on retarded computers, sorry.')
+ return
+ logger.debug('Starting up background thread...')
p = psutil.Process(os.getpid())
while True:
saw_sshd = False
ancestors = p.parents()
for ancestor in ancestors:
name = ancestor.name()
+ pid = ancestor.pid
+ logger.debug(f'Ancestor process {name} (pid={pid})')
if 'ssh' in name.lower():
saw_sshd = True
break
if not saw_sshd:
+ logger.error('Did not see sshd in our ancestors list?! Committing suicide.')
os.system('pstree')
os.kill(os.getpid(), signal.SIGTERM)
time.sleep(5.0)
in_file = config.config['code_file']
out_file = config.config['result_file']
+ (thread, stop_thread) = watch_for_cancel()
+
logger.debug(f'Reading {in_file}.')
try:
with open(in_file, 'rb') as rb:
except Exception as e:
logger.exception(e)
logger.critical(f'Problem reading {in_file}. Aborting.')
+ stop_thread.set()
sys.exit(-1)
logger.debug(f'Deserializing {in_file}.')
except Exception as e:
logger.exception(e)
logger.critical(f'Problem deserializing {in_file}. Aborting.')
+ stop_thread.set()
sys.exit(-1)
logger.debug('Invoking user code...')
except Exception as e:
logger.exception(e)
logger.critical(f'Could not serialize result ({type(ret)}). Aborting.')
+ stop_thread.set()
sys.exit(-1)
logger.debug(f'Writing {out_file}.')
except Exception as e:
logger.exception(e)
logger.critical(f'Error writing {out_file}. Aborting.')
+ stop_thread.set()
sys.exit(-1)
+ stop_thread.set()
+ thread.join()
+
if __name__ == '__main__':
main()