jingrow/gunicorn
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make daemonizing better

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This commit is contained in:
Benoit Chesneau 2010-01-29 21:32:16 +01:00
parent 82ed62d35d
commit 6f4db28710
1 changed files with 35 additions and 4 deletions
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39
gunicorn/main.py
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@ -7,6 +7,7 @@
import logging import logging
import optparse as op import optparse as op
import os import os
import resource
import sys import sys
from gunicorn.arbiter import Arbiter from gunicorn.arbiter import Arbiter
@ -19,6 +20,14 @@ LOG_LEVELS = {
"debug": logging.DEBUG "debug": logging.DEBUG
} }
UMASK = 0
MAXFD = 1024
if (hasattr(os, "devnull")):
REDIRECT_TO = os.devnull
else:
REDIRECT_TO = "/dev/null"
def options(): def options():
return [ return [
op.make_option('--host', dest='host', op.make_option('--host', dest='host',
@ -57,10 +66,32 @@ def configure_logging(opts):
def daemonize(logger): def daemonize(logger):
if not 'GUNICORN_FD' in os.environ: if not 'GUNICORN_FD' in os.environ:
if os.fork(): os._exit(0) if os.fork() == 0:
os.setsid() os.setsid()
if os.fork(): os._exit(0) if os.fork() == 0:
sys.stdin = sys.__stdin__ = open("/dev/null") os.umask(UMASK)
else:
os._exit(0)
else:
os._exit(0)
import resource # Resource usage information.
maxfd = resource.getrlimit(resource.RLIMIT_NOFILE)[1]
if (maxfd == resource.RLIM_INFINITY):
maxfd = 1024
# Iterate through and close all file descriptors.
for fd in range(0, maxfd):
try:
os.close(fd)
except OSError: # ERROR, fd wasn't open to begin with (ignored)
pass
os.open(REDIRECT_TO, os.O_RDWR)
os.dup2(0, 1)
os.dup2(0, 2)
def main(usage, get_app): def main(usage, get_app):
parser = op.OptionParser(usage=usage, option_list=options()) parser = op.OptionParser(usage=usage, option_list=options())