def wakeUp(self):
"""Send a byte to my connection.
"""
try:
util.untilConcludes(self.w.send, b"x")
except socket.error as e:
if e.args[0] != errno.WSAEWOULDBLOCK:
raise
def wakeUp(self):
"""Send a byte to my connection.
"""
try:
util.untilConcludes(self.w.send, b'x')
except socket.error as e:
if e.args[0] != errno.WSAEWOULDBLOCK:
raise
def emit(self, eventDict):
text = textFromEventDict(eventDict)
if text is None:
return
timeStr = self.formatTime(eventDict['time'])
fmtDict = {'system': eventDict['system'], 'text': text.replace("\n", "\n\t")}
msgStr = _safeFormat("[%(system)s] %(text)s\n", fmtDict)
util.untilConcludes(self.write, timeStr + " " + msgStr)
util.untilConcludes(self.flush) # Hoorj!
def wakeUp(self):
"""Write one byte to the pipe, and flush it.
"""
# We don't use fdesc.writeToFD since we need to distinguish
# between EINTR (try again) and EAGAIN (do nothing).
if self.o is not None:
try:
util.untilConcludes(os.write, self.o, b'x')
except OSError as e:
# XXX There is no unit test for raising the exception
# for other errnos. See #4285.
if e.errno != errno.EAGAIN:
raise
def wakeUp(self):
"""Write one byte to the pipe, and flush it.
"""
# We don't use fdesc.writeToFD since we need to distinguish
# between EINTR (try again) and EAGAIN (do nothing).
if self.o is not None:
try:
util.untilConcludes(os.write, self.o, b"x")
except OSError as e:
# XXX There is no unit test for raising the exception
# for other errnos. See #4285.
if e.errno != errno.EAGAIN:
raise
def emit(self, eventDict):
text = textFromEventDict(eventDict)
if text is None:
return
timeStr = self.formatTime(eventDict['time'])
fmtDict = {
'system': eventDict['system'],
'text': text.replace("\n", "\n\t")
}
msgStr = _safeFormat("[%(system)s] %(text)s\n", fmtDict)
util.untilConcludes(self.write, timeStr + " " + msgStr)
util.untilConcludes(self.flush) # Hoorj!
def _write(self, format, *args):
"""
Safely write to the reporter's stream.
@param format: A format string to write.
@param *args: The arguments for the format string.
"""
s = str(format)
assert isinstance(s, type(''))
if args:
self._stream.write(s % args)
else:
self._stream.write(s)
untilConcludes(self._stream.flush)
def _execWithFileDescriptor(self, fObj):
pid = os.fork()
if pid == 0:
try:
os.execv(sys.executable, [sys.executable, '-c', self.program % (fObj.fileno(),)])
except:
import traceback
traceback.print_exc()
os._exit(30)
else:
# On Linux wait(2) doesn't seem ever able to fail with EINTR but
# POSIX seems to allow it and on OS X it happens quite a lot.
return untilConcludes(os.waitpid, pid, 0)[1]
def test_uninterruptably(self):
"""
L{untilConcludes} calls the function passed to it until the function
does not raise either L{OSError} or L{IOError} with C{errno} of
C{EINTR}. It otherwise completes with the same result as the function
passed to it.
"""
def f(a, b):
self.calls += 1
exc = self.exceptions.pop()
if exc is not None:
raise exc(errno.EINTR, "Interrupted system call!")
return a + b
self.exceptions = [None]
self.calls = 0
self.assertEqual(util.untilConcludes(f, 1, 2), 3)
self.assertEqual(self.calls, 1)
self.exceptions = [None, OSError, IOError]
self.calls = 0
self.assertEqual(util.untilConcludes(f, 2, 3), 5)
self.assertEqual(self.calls, 3)
def _execWithFileDescriptor(self, fObj):
pid = os.fork()
if pid == 0:
try:
os.execv(
sys.executable,
[sys.executable, '-c', self.program % (fObj.fileno(), )])
except:
import traceback
traceback.print_exc()
os._exit(30)
else:
# On Linux wait(2) doesn't seem ever able to fail with EINTR but
# POSIX seems to allow it and on OS X it happens quite a lot.
return untilConcludes(os.waitpid, pid, 0)[1]
def writeSomeData(self, data):
"""
Write as much as possible of the given data to this TCP connection.
This sends up to C{self.SEND_LIMIT} bytes from C{data}. If the
connection is lost, an exception is returned. Otherwise, the number
of bytes successfully written is returned.
"""
# Limit length of buffer to try to send, because some OSes are too
# stupid to do so themselves (ahem windows)
limitedData = lazyByteSlice(data, 0, self.SEND_LIMIT)
try:
return untilConcludes(self.socket.send, limitedData)
except socket.error as se:
if se.args[0] in (EWOULDBLOCK, ENOBUFS):
return 0
else:
return main.CONNECTION_LOST
def writeSomeData(self, data):
"""
Write as much as possible of the given data to this TCP connection.
This sends up to C{self.SEND_LIMIT} bytes from C{data}. If the
connection is lost, an exception is returned. Otherwise, the number
of bytes successfully written is returned.
"""
# Limit length of buffer to try to send, because some OSes are too
# stupid to do so themselves (ahem windows)
limitedData = lazyByteSlice(data, 0, self.SEND_LIMIT)
try:
return untilConcludes(self.socket.send, limitedData)
except socket.error as se:
if se.args[0] in (EWOULDBLOCK, ENOBUFS):
return 0
else:
return main.CONNECTION_LOST
def write(self, *a, **kw):
return untilConcludes(self.original.write, *a, **kw)
