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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
import os
if os.environ.get('USE_EVENTLET', '1') == '1':
import eventlet
from eventlet.debug import hub_prevent_multiple_readers
eventlet.monkey_patch()
hub_prevent_multiple_readers(False)
print("Use eventlet dispatch")
else:
print("Use local threading")
import sys
import argparse
import time
import signal
dirs = ('logs', 'keys')
for d in dirs:
if not os.path.isdir(d):
os.makedirs(d)
from coco import Coco
try:
from conf import config
except ImportError:
print("Please prepare config file `cp conf_example.py conf.py`")
sys.exit(1)
BASE_DIR = os.path.dirname(os.path.abspath(__file__))
DAEMON = False
PID_FILE = os.path.join(BASE_DIR, 'coco.pid')
coco = Coco()
def check_pid(pid):
""" Check For the existence of a unix pid. """
try:
os.kill(pid, 0)
except OSError:
return False
else:
return True
def start():
print("Start coco process")
if DAEMON:
fork_daemon()
with open(PID_FILE, 'w') as f:
f.write(str(os.getpid()))
coco.run_forever()
def stop():
print("Stop coco process")
pid = None
if os.path.isfile(PID_FILE):
with open(PID_FILE) as f:
pid = f.read().strip()
if pid and pid.isdigit():
for i in range(15):
try:
os.kill(int(pid), signal.SIGTERM)
except ProcessLookupError:
pass
if check_pid(int(pid)):
time.sleep(1)
continue
else:
os.unlink(PID_FILE)
break
def show_status():
pid = None
if os.path.isfile(PID_FILE):
with open(PID_FILE) as f:
pid = f.read().strip()
if pid and pid.isdigit() and check_pid(int(pid)):
print("Coco is running: {}".format(pid))
else:
print("Coco is stopped")
def fork_daemon():
try:
if os.fork() > 0:
sys.exit(0)
except OSError as e:
sys.stderr.write("fork #1 failed: %d (%s)\n" % (e.errno, e.strerror))
sys.exit(1)
os.chdir(BASE_DIR)
os.setsid()
os.umask(0)
try:
pid = os.fork()
if pid > 0:
sys.exit(0)
except OSError as e:
sys.stderr.write("fork #2 failed: %d (%s)\n" % (e.errno, e.strerror))
sys.exit(1)
sys.stdout.flush()
sys.stderr.flush()
si = open('/dev/null', 'r')
so = open('/tmp/a.log', 'a')
se = open('/dev/null', 'a')
os.dup2(si.fileno(), sys.stdin.fileno())
os.dup2(so.fileno(), sys.stdout.fileno())
os.dup2(se.fileno(), sys.stderr.fileno())
if __name__ == '__main__':
parser = argparse.ArgumentParser(
description="""
coco service control tools;
Example: \r\n
%(prog)s start -d;
"""
)
parser.add_argument(
'action', type=str, default='start',
choices=("start", "stop", "restart", "status"),
help="Action to run"
)
parser.add_argument('-d', '--daemon', nargs="?", const=1)
args = parser.parse_args()
if args.daemon:
DAEMON = True
action = args.action
if action == "start":
start()
elif action == "stop":
stop()
elif action == "restart":
stop()
DAEMON = True
start()
else:
show_status()