EmbeddedPkg: Extend NvVarStoreFormattedLib LIBRARY_CLASS

[mirror_edk2.git] / AppPkg / Applications / Python / Python-2.7.2 / Lib / unittest / signals.py

import signal\r
import weakref\r
\r
from functools import wraps\r
\r
__unittest = True\r
\r
\r
class _InterruptHandler(object):\r
    def __init__(self, default_handler):\r
        self.called = False\r
        self.default_handler = default_handler\r
\r
    def __call__(self, signum, frame):\r
        installed_handler = signal.getsignal(signal.SIGINT)\r
        if installed_handler is not self:\r
            # if we aren't the installed handler, then delegate immediately\r
            # to the default handler\r
            self.default_handler(signum, frame)\r
\r
        if self.called:\r
            self.default_handler(signum, frame)\r
        self.called = True\r
        for result in _results.keys():\r
            result.stop()\r
\r
_results = weakref.WeakKeyDictionary()\r
def registerResult(result):\r
    _results[result] = 1\r
\r
def removeResult(result):\r
    return bool(_results.pop(result, None))\r
\r
_interrupt_handler = None\r
def installHandler():\r
    global _interrupt_handler\r
    if _interrupt_handler is None:\r
        default_handler = signal.getsignal(signal.SIGINT)\r
        _interrupt_handler = _InterruptHandler(default_handler)\r
        signal.signal(signal.SIGINT, _interrupt_handler)\r
\r
\r
def removeHandler(method=None):\r
    if method is not None:\r
        @wraps(method)\r
        def inner(*args, **kwargs):\r
            initial = signal.getsignal(signal.SIGINT)\r
            removeHandler()\r
            try:\r
                return method(*args, **kwargs)\r
            finally:\r
                signal.signal(signal.SIGINT, initial)\r
        return inner\r
\r
    global _interrupt_handler\r
    if _interrupt_handler is not None:\r
        signal.signal(signal.SIGINT, _interrupt_handler.default_handler)\r