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Diffstat (limited to '')
| -rwxr-xr-x | src/libs/xpcom18a4/python/__init__.py | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/python/__init__.py b/src/libs/xpcom18a4/python/__init__.py new file mode 100755 index 00000000..3a5943b6 --- /dev/null +++ b/src/libs/xpcom18a4/python/__init__.py @@ -0,0 +1,173 @@ +# ***** BEGIN LICENSE BLOCK ***** +# Version: MPL 1.1/GPL 2.0/LGPL 2.1 +# +# The contents of this file are subject to the Mozilla Public License Version +# 1.1 (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.mozilla.org/MPL/ +# +# Software distributed under the License is distributed on an "AS IS" basis, +# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License +# for the specific language governing rights and limitations under the +# License. +# +# The Original Code is the Python XPCOM language bindings. +# +# The Initial Developer of the Original Code is +# Activestate Tool Corp. +# Portions created by the Initial Developer are Copyright (C) 2000 +# the Initial Developer. All Rights Reserved. +# +# Contributor(s): +# Mark Hammond <MarkH@activestate.com> +# +# Alternatively, the contents of this file may be used under the terms of +# either the GNU General Public License Version 2 or later (the "GPL"), or +# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), +# in which case the provisions of the GPL or the LGPL are applicable instead +# of those above. If you wish to allow use of your version of this file only +# under the terms of either the GPL or the LGPL, and not to allow others to +# use your version of this file under the terms of the MPL, indicate your +# decision by deleting the provisions above and replace them with the notice +# and other provisions required by the GPL or the LGPL. If you do not delete +# the provisions above, a recipient may use your version of this file under +# the terms of any one of the MPL, the GPL or the LGPL. +# +# ***** END LICENSE BLOCK ***** +# + +# The XPCOM (Cross Platform COM) package. +from __future__ import print_function +import sys +if sys.version_info[0] <= 2: + import exceptions + XPCOMBaseException = exceptions.Exception +else: + XPCOMBaseException = Exception + +# A global "verbose" flag - currently used by the +# server package to print trace messages +verbose = 0 +# Map of nsresult -> constant_name. +hr_map = {} + +# The standard XPCOM exception object. +# Instances of this class are raised by the XPCOM extension module. +class Exception(XPCOMBaseException): + def __init__(self, errno, message = None): + assert int(errno) == errno, "The errno param must be an integer" + self.errno = errno + self.msg = message + XPCOMBaseException.__init__(self, errno) + def __str__(self): + if not hr_map: + from . import nsError + for name, val in list(nsError.__dict__.items()): + if type(val)==type(0): + hr_map[val] = name + message = self.msg + if message is None: + message = hr_map.get(self.errno) + if message is None: + message = "" + return "0x%x (%s)" % (self.errno & 0xFFFFFFFF, message) + +# An alias for Exception - allows code to say "from xpcom import COMException" +# rather than "Exception", preventing clashes with the builtin Exception +COMException = Exception + +# Exceptions thrown by servers. It can be good for diagnostics to +# differentiate between a ServerException (which was presumably explicitly thrown) +# and a normal exception which may simply be propagating down. +# (When ServerException objects are thrown across the XPConnect +# gateway they will be converted back to normal client exceptions if +# subsequently re-caught by Python) +class ServerException(Exception): + def __init__(self, errno=None, *args, **kw): + if errno is None: + from . import nsError + errno = nsError.NS_ERROR_FAILURE + Exception.__init__(self, errno, *args, **kw) + +# Logging support - setup the 'xpcom' logger to write to the Mozilla +# console service, and also to sys.stderr, or optionally a file. +# Environment variables supports: +# PYXPCOM_LOG_FILE=filename - if set, used instead of sys.stderr. +# PYXPCOM_LOG_LEVEL=level - level may be a number or a logging level +# constant (eg, 'debug', 'error') +# Later it may make sense to allow a different log level to be set for +# the file than for the console service. +import logging +class ConsoleServiceStream: + # enough of a stream to keep logging happy + def flush(self): + pass + def write(self, msg): + import xpcom._xpcom as _xpcom + _xpcom.LogConsoleMessage(msg) + def close(self): + pass + +def setupLogging(): + import os + if sys.version_info[0] <= 2: + import threading, thread + hdlr = logging.StreamHandler(ConsoleServiceStream()) + fmt = logging.Formatter(logging.BASIC_FORMAT) + hdlr.setFormatter(fmt) + # There is a bug in 2.3 and 2.4.x logging module in that it doesn't + # use an RLock, leading to deadlocks in some cases (specifically, + # logger.warning("ob is %r", ob), and where repr(ob) itself tries to log) + # Later versions of logging use an RLock, so we detect an "old" style + # handler and update its lock + if sys.version_info[0] <= 2: + if type(hdlr.lock) == thread.LockType: + hdlr.lock = threading.RLock() + + logger.addHandler(hdlr) + # The console handler in mozilla does not go to the console!? + # Add a handler to print to stderr, or optionally a file + # PYXPCOM_LOG_FILE can specify a filename + filename = os.environ.get("PYXPCOM_LOG_FILE") + stream = sys.stderr # this is what logging uses as default + if filename: + try: + # open without buffering so never pending output + stream = open(filename, "wU", 0) + except IOError as why: + print("pyxpcom failed to open log file '%s': %s" % (filename, why), file=sys.stderr) + # stream remains default + + hdlr = logging.StreamHandler(stream) + # see above - fix a deadlock problem on this handler too. + if sys.version_info[0] <= 2: + if type(hdlr.lock) == thread.LockType: + hdlr.lock = threading.RLock() + + fmt = logging.Formatter(logging.BASIC_FORMAT) + hdlr.setFormatter(fmt) + logger.addHandler(hdlr) + # Allow PYXPCOM_LOG_LEVEL to set the level + level = os.environ.get("PYXPCOM_LOG_LEVEL") + if level: + try: + level = int(level) + except ValueError: + try: + # might be a symbolic name - all are upper-case + level = int(getattr(logging, level.upper())) + except (AttributeError, ValueError): + logger.warning("The PYXPCOM_LOG_LEVEL variable specifies an " + "invalid level") + level = None + if level: + logger.setLevel(level) + +logger = logging.getLogger('xpcom') +# If someone else has already setup this logger, leave things alone. +if len(logger.handlers) == 0: + setupLogging() + +# Cleanup namespace - but leave 'logger' there for people to use, so they +# don't need to know the exact name of the logger. +del ConsoleServiceStream, logging, setupLogging |