mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-12-26 03:21:44 +03:00
ca55dc598c
The return values for the python version are different that the C version of virStreamSend: on success we return a string, an error raises an exception, and if the stream would block we return int(-2). We need to do this since strings aren't passed by reference in python.
62 lines
2.2 KiB
Python
62 lines
2.2 KiB
Python
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
|