86 lines
2.5 KiB
Python
86 lines
2.5 KiB
Python
# encoding=utf-8
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#
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# The Qubes OS Project, https://www.qubes-os.org/
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#
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# Copyright (C) 2015 Marek Marczykowski-Górecki
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# <marmarek@invisiblethingslab.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License along
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# with this program; if not, see <http://www.gnu.org/licenses/>.
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import io
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import sys
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import asyncio
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class StdoutBuffer(object):
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def __init__(self):
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self.orig_stdout = None
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if sys.version_info[0] >= 3:
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self.stdout = io.StringIO()
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else:
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self.stdout = io.BytesIO()
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def __enter__(self):
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self.orig_stdout = sys.stdout
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sys.stdout = self.stdout
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return self.stdout
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def __exit__(self, exc_type, exc_val, exc_tb):
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sys.stdout = self.orig_stdout
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return False
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class StderrBuffer(object):
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def __init__(self):
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self.orig_stderr = None
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if sys.version_info[0] >= 3:
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self.stderr = io.StringIO()
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else:
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self.stderr = io.BytesIO()
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def __enter__(self):
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self.orig_stderr = sys.stderr
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sys.stderr = self.stderr
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return self.stderr
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def __exit__(self, exc_type, exc_val, exc_tb):
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sys.stderr = self.orig_stderr
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return False
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class MockEventsReader(object):
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def __init__(self, events, delay=0.05):
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self.events = events
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self.delay = delay
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self.current_event = None
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def at_eof(self):
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return not bool(self.events)
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@asyncio.coroutine
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def readuntil(self, delim):
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if not self.current_event:
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if not self.events:
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raise asyncio.IncompleteReadError(b'', delim)
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yield from asyncio.sleep(self.delay)
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self.current_event = self.events.pop(0)
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data, rest = self.current_event.split(delim, 1)
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self.current_event = rest
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return data + delim
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@asyncio.coroutine
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def __call__(self, vm=None):
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return self, (lambda: None)
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