wsgistartup.py

# -*- mode: python; encoding: utf-8 -*-
#
# Copyright 2012 Jens Lindström, Opera Software ASA
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License.  You may obtain a copy of
# the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
# License for the specific language governing permissions and limitations under
# the License.

try:
    import os
    import os.path
    import atexit
    import time
    import errno

    # Preload critic.py to reduce initial page load delay.
    import critic
    import configuration

    pidfile_path = os.path.join(configuration.paths.WSGI_PIDFILE_DIR, str(os.getpid()))

    def deletePidFile():
        try: os.unlink(pidfile_path)
        except: pass

    try: os.makedirs(os.path.dirname(pidfile_path))
    except OSError, error:
        if error.errno == errno.EEXIST: pass
        else: raise

    open(pidfile_path, "w").write(str(time.time()))

    atexit.register(deletePidFile)
except: pass