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def __del__(self):
try:
if self.cb:
libvirtmod.virStreamEventRemoveCallback(self._o)
except AttributeError:
pass
if self._o != None:
libvirtmod.virStreamFree(self._o)
self._o = None
def dispatchStreamEventCallback(self, events, cbData):
"""
Dispatches events to python user's stream event callbacks
"""
cb = cbData["cb"]
opaque = cbData["opaque"]
cb(self, events, opaque)
return 0
def eventAddCallback(self, events, cb, opaque):
self.cb = cb
cbData = {"stream": self, "cb" : cb, "opaque" : opaque}
ret = libvirtmod.virStreamEventAddCallback(self._o, events, cbData)
if ret == -1: raise libvirtError ('virStreamEventAddCallback() failed')
def recv(self, nbytes):
"""Write a series of bytes to the stream. This method may
block the calling application for an arbitrary amount
of time.
Errors are not guaranteed to be reported synchronously
with the call, but may instead be delayed until a
subsequent call.
On success, the received data is returned. On failure, an
exception is raised. If the stream is a NONBLOCK stream and
the request would block, integer -2 is returned.
"""
ret = libvirtmod.virStreamRecv(self._o, nbytes)
if ret == None: raise libvirtError ('virStreamRecv() failed')
return ret
def send(self, data):
"""Write a series of bytes to the stream. This method may
block the calling application for an arbitrary amount
of time. Once an application has finished sending data
it should call virStreamFinish to wait for successful
confirmation from the driver, or detect any error
This method may not be used if a stream source has been
registered
Errors are not guaranteed to be reported synchronously
with the call, but may instead be delayed until a
subsequent call.
"""
ret = libvirtmod.virStreamSend(self._o, data, len(data))
if ret == -1: raise libvirtError ('virStreamSend() failed')
return ret
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