(pid_file, log_file)
| 91 | |
| 92 | |
| 93 | def daemon_start(pid_file, log_file): |
| 94 | |
| 95 | def handle_exit(signum, _): |
| 96 | if signum == signal.SIGTERM: |
| 97 | sys.exit(0) |
| 98 | sys.exit(1) |
| 99 | |
| 100 | signal.signal(signal.SIGINT, handle_exit) |
| 101 | signal.signal(signal.SIGTERM, handle_exit) |
| 102 | |
| 103 | # fork only once because we are sure parent will exit |
| 104 | pid = os.fork() |
| 105 | assert pid != -1 |
| 106 | |
| 107 | if pid > 0: |
| 108 | # parent waits for its child |
| 109 | time.sleep(5) |
| 110 | sys.exit(0) |
| 111 | |
| 112 | # child signals its parent to exit |
| 113 | ppid = os.getppid() |
| 114 | pid = os.getpid() |
| 115 | if write_pid_file(pid_file, pid) != 0: |
| 116 | os.kill(ppid, signal.SIGINT) |
| 117 | sys.exit(1) |
| 118 | |
| 119 | os.setsid() |
| 120 | signal.signal(signal.SIGHUP, signal.SIG_IGN) |
| 121 | |
| 122 | print('started') |
| 123 | os.kill(ppid, signal.SIGTERM) |
| 124 | |
| 125 | sys.stdin.close() |
| 126 | try: |
| 127 | freopen(log_file, 'a', sys.stdout) |
| 128 | freopen(log_file, 'a', sys.stderr) |
| 129 | except IOError as e: |
| 130 | shell.print_exception(e) |
| 131 | sys.exit(1) |
| 132 | |
| 133 | |
| 134 | def daemon_stop(pid_file): |
no test coverage detected