Use the function goDaemon just before starting the server loop:
###############Begin Module#######################
import os
import sys
# Default daemon parameters.
# File mode creation mask of the daemon.
UMASK = 0
# Default working directory for the daemon.
WORKDIR = "/"
# Default maximum for the number of available file descriptors.
MAXFD = 1024
# The standard I/O file descriptors are redirected to /dev/null by default.
if (hasattr(os, "devnull")):
REDIRECT_TO = os.devnull
else:
REDIRECT_TO = "/dev/null"
def goDaemon():
try:
pid = os.fork()
except OSError, e:
raise Exception, "%s [%d]" % (e.strerror, e.errno)
if (pid == 0): # The first child.
os.setsid()
try:
pid = os.fork() # Fork a second child.
except OSError, e:
raise Exception, "%s [%d]" % (e.strerror, e.errno)
if (pid == 0): # The second child.
os.chdir(WORKDIR)
os.umask(UMASK)
else:
os._exit(0)
else:
os._exit(0) # Exit parent of the first child.
import resource
maxfd = resource.getrlimit(resource.RLIMIT_NOFILE)[1]
if (maxfd == resource.RLIM_INFINITY):
maxfd = MAXFD
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) # standard input (0)
os.dup2(0, 1) # standard output (1)
os.dup2(0, 2) # standard error (2)
return(0)
###############End Module#######################
On Tue, Feb 26, 2008 at 12:06 PM, bharath venkatesh <[EMAIL PROTECTED]>
wrote:
> hi ..
> hi i want a program to start running as daemon in background .. my
> program is server listen to a client ... so i want to make that program run
> as daemon .. when i execute the program the program for ex server.py it
> should automatically start running as daemon in the background even if i
> close the terminal it shouldn't stop executing.. (right now if i close the
> terminal the process exits) can any one tell how to do it in python as i
> have implemented the server in python ...
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>
--
Regards--
Rishi Pathak
--
http://mail.python.org/mailman/listinfo/python-list
