diff options
author | Rob Austein <sra@hactrn.net> | 2014-04-05 22:42:12 +0000 |
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committer | Rob Austein <sra@hactrn.net> | 2014-04-05 22:42:12 +0000 |
commit | fe0bf509f528dbdc50c7182f81057c6a4e15e4bd (patch) | |
tree | 07c9a923d4a0ccdfea11c49cd284f6d5757c5eda /rpkid/rpki/daemonize.py | |
parent | aa28ef54c271fbe4d52860ff8cf13cab19e2207c (diff) |
Source tree reorg, phase 1. Almost everything moved, no file contents changed.
svn path=/branches/tk685/; revision=5757
Diffstat (limited to 'rpkid/rpki/daemonize.py')
-rw-r--r-- | rpkid/rpki/daemonize.py | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/rpkid/rpki/daemonize.py b/rpkid/rpki/daemonize.py deleted file mode 100644 index 62b4ee4e..00000000 --- a/rpkid/rpki/daemonize.py +++ /dev/null @@ -1,133 +0,0 @@ -# $Id$ -# -# Copyright (C) 2012 Internet Systems Consortium ("ISC") -# -# Permission to use, copy, modify, and distribute this software for any -# purpose with or without fee is hereby granted, provided that the above -# copyright notice and this permission notice appear in all copies. -# -# THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH -# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY -# AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, -# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM -# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE -# OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -# PERFORMANCE OF THIS SOFTWARE. -# -# Some code borrowed from -# http://www.jejik.com/articles/2007/02/a_simple_unix_linux_daemon_in_python/ -# -# (which was explicitly placed in public domain by its author), and from -# -# /usr/src/lib/libc/gen/daemon.c -# -# (the libc implementation of daemon(3) on FreeBSD), so: -# -# Portions copyright (c) 1990, 1993 -# The Regents of the University of California. All rights reserved. -# -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions -# are met: -# 1. Redistributions of source code must retain the above copyright -# notice, this list of conditions and the following disclaimer. -# 2. Redistributions in binary form must reproduce the above copyright -# notice, this list of conditions and the following disclaimer in the -# documentation and/or other materials provided with the distribution. -# 4. Neither the name of the University nor the names of its contributors -# may be used to endorse or promote products derived from this software -# without specific prior written permission. -# -# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -# SUCH DAMAGE. - -""" -Make a normal program into a "daemon", like the 4.4BSD daemon(3) call. - -This doesn't quite follow either the 4.4BSD call or the Python 3.x library, -because it was written to fit into an existing package and I didn't -want to drag in yet another external library just for this. -""" - -import sys -import os -import atexit -import signal -import rpki.log - -# Does default_pid_directory need to be autoconf-configurable? - -## @var default_pid_directory -# Default directory to which to write process ID files. - -default_pid_directory = "/var/run/rpki" - -## @var pid_filename -# Configurable filename to which to write process ID file. -# pidfile argument to daemon() overrides this. - -pid_filename = None - -def daemon(nochdir = False, noclose = False, pidfile = None): - """ - Make this program become a daemon, like 4.4BSD daemon(3), and - write its pid out to a file with cleanup on exit. - """ - - if pidfile is None: - if pid_filename is None: - prog = os.path.splitext(os.path.basename(sys.argv[0]))[0] - pidfile = os.path.join(default_pid_directory, "%s.pid" % prog) - else: - pidfile = pid_filename - - old_sighup_action = signal.signal(signal.SIGHUP, signal.SIG_IGN) - - try: - pid = os.fork() - except OSError, e: - sys.exit("fork() failed: %d (%s)" % (e.errno, e.strerror)) - else: - if pid > 0: - os._exit(0) - - if not nochdir: - os.chdir("/") - - os.setsid() - - if not noclose: - sys.stdout.flush() - sys.stderr.flush() - fd = os.open(os.devnull, os.O_RDWR) - os.dup2(fd, 0) - os.dup2(fd, 1) - os.dup2(fd, 2) - if fd > 2: - os.close(fd) - - signal.signal(signal.SIGHUP, old_sighup_action) - - def delete_pid_file(): - try: - os.unlink(pidfile) - except OSError: - pass - - atexit.register(delete_pid_file) - - try: - f = open(pidfile, "w") - f.write("%d\n" % os.getpid()) - f.close() - except IOError, e: - rpki.log.warn("Couldn't write PID file %s: %s" % (pidfile, e.strerror)) |