63 lines
1.6 KiB
Python
63 lines
1.6 KiB
Python
# Python imports
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import os
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import json
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import inspect
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# Lib imports
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# Application imports
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class StartCheckMixin:
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def is_dirty_start(self) -> bool:
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return self._dirty_start
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def clear_pid(self):
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if not self.is_trace_debug():
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self._clean_pid()
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def do_dirty_start_check(self):
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if self.is_trace_debug():
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pid = os.getpid()
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self._print_pid(pid)
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return
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if os.path.exists(self._PID_FILE):
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with open(self._PID_FILE, "r") as f:
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pid = f.readline().strip()
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if pid not in ("", None):
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if self.is_pid_alive( int(pid) ):
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print("PID file exists and PID is alive... Letting downstream errors (sans debug args) handle app closure propigation.")
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return
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self._write_new_pid()
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""" Check For the existence of a unix pid. """
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def is_pid_alive(self, pid):
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print(f"PID Found: {pid}")
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try:
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os.kill(pid, 0)
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except OSError:
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print(f"{app_name} PID file exists but PID is irrelevant; starting dirty...")
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self._dirty_start = True
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return False
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return True
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def _write_new_pid(self):
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pid = os.getpid()
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self._write_pid(pid)
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self._print_pid(pid)
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def _print_pid(self, pid):
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print(f"{app_name} PID: {pid}")
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def _clean_pid(self):
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os.unlink(self._PID_FILE)
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def _write_pid(self, pid):
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with open(self._PID_FILE, "w") as _pid:
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_pid.write(f"{pid}") |