Python/System Signals - Revision history

Tacoball: /* Daemon */

2019-09-12T02:43:35Z

Daemon

← Older revision		Revision as of 02:43, 12 September 2019
Line 83:		Line 83:
	'''Problem on Linux'''		'''Problem on Linux'''

	If the original terminal was closed, the stdout would disappear.		If the original terminal was closed, the stdout would disappear.<br/>
	At that time an error occur while print anything.		At that time an error occur while print anything.<br/>
			Redirect stdout can avoid this problem.

	<source lang="python3">		<source lang="python3">
	python3 daemon_test.py > daemon_test.out		python3 daemon_test.py > daemon_test.out
	</source>		</source>

2019-09-12T02:42:53Z

Daemon

← Older revision		Revision as of 02:42, 12 September 2019
Line 82:		Line 82:

	'''Problem on Linux'''		'''Problem on Linux'''

			If the original terminal was closed, the stdout would disappear.
			At that time an error occur while print anything.

			<source lang="python3">
			python3 daemon_test.py > daemon_test.out
			</source>

2019-09-12T02:36:02Z

Daemon

← Older revision		Revision as of 02:36, 12 September 2019
Line 75:		Line 75:

	If this daemon ran in a terminal, it would be closed while the terminal was closed.<br/>		If this daemon ran in a terminal, it would be closed while the terminal was closed.<br/>
	To keep the daemon running after the terminal closed, the following command ~~is necessary~~.		To keep the daemon running after the terminal closed, use the following command.

	<source lang="python3">		<source lang="python3">

2019-09-12T02:35:25Z

← Older revision		Revision as of 02:35, 12 September 2019
Line 53:		Line 53:

	while not close_requested:		while not close_requested:
			print('Daemon running')
	time.sleep(1)		time.sleep(1)

Line 70:		Line 71:
	Daemon(27255) closed by signal 6		Daemon(27255) closed by signal 6
	</source>		</source>

			'''Problem on macOS'''

	If this daemon ran in a terminal, it would be closed while the terminal was closed.<br/>		If this daemon ran in a terminal, it would be closed while the terminal was closed.<br/>
Line 77:		Line 80:
	nohup python3 daemon_test.py > daemon_test.out		nohup python3 daemon_test.py > daemon_test.out
	</source>		</source>

			'''Problem on Linux'''

2019-09-12T02:29:50Z

Daemon

← Older revision		Revision as of 02:29, 12 September 2019
Line 71:		Line 71:
	</source>		</source>

	If this daemon ran in a terminal, it would be closed while the terminal was closed.		If this daemon ran in a terminal, it would be closed while the terminal was closed.<br/>
	To keep the daemon running after the terminal closed, the following command is necessary.		To keep the daemon running after the terminal closed, the following command is necessary.

2019-09-12T02:29:35Z

Daemon

← Older revision		Revision as of 02:29, 12 September 2019
Line 69:		Line 69:
	Daemon(25875) closed by signal 3		Daemon(25875) closed by signal 3
	Daemon(27255) closed by signal 6		Daemon(27255) closed by signal 6
			</source>

			If this daemon ran in a terminal, it would be closed while the terminal was closed.
			To keep the daemon running after the terminal closed, the following command is necessary.

			<source lang="python3">
			nohup python3 daemon_test.py > daemon_test.out
	</source>		</source>

2019-09-12T02:25:52Z

Daemon

2019-09-12T02:22:18Z

Daemon

@@ Line 56: / Line 56: @@
      if os.fork() == 0:
          daemon()
 </source>

2019-09-12T02:21:24Z

@@ Line 20: / Line 20: @@
 if __name__ == '__main__':
      main()
 </source>

2019-08-28T03:09:56Z

← Older revision		Revision as of 03:09, 28 August 2019
Line 1:		Line 1:
	=== Gracefully close a process by signal ===		== Gracefully close a process by signal ==

	<source lang="python3">		<source lang="python3">