def recv(self):
"""
Receive a request message from the client
"""
msgdata = (c_ubyte * NORM_MSG_SIZE)()
msg = mempair(p9msg, msgdata)
(baddr, blen) = msg.databuf()
l = libc.recv(self.__clsock, baddr, blen, 0)
hdr = msg.car()
if l > sizeof(hdr):
if hdr.size > l:
if hdr.size > MAX_MSG_SIZE:
raise IOError("The message is too large: %d bytes" %
hdr.size)
resize(msgdata, hdr.size)
(baddr, blen) = msg.databuf()
l2 = libc.recv(self.__clsock, baddr + hdr.size - l, blen - l,
0)
if l2 > 0:
l += l2
else:
raise IOError("Unable to read the %d remaining bytes" %
blen - l)
else:
raise IOError("Unable to read the message")
return (l, msg)
def basereply(tmsg, rtype=-1):
"""
Returns the corresponding R-message mempair object for
a given T-message mempair object
"""
if rtype < 0:
rtype = tmsg.type + 1
msgdata = (c_ubyte * NORM_MSG_SIZE)()
replymsg = mempair(p9msg, msgdata)
replymsg.type = rtype
replymsg.tag = tmsg.tag
(baddr, bsize) = replymsg.carbuf()
replymsg.size = bsize
return replymsg
def basereply (tmsg, rtype = -1):
"""
Returns the corresponding R-message mempair object for
a given T-message mempair object
"""
if rtype < 0:
rtype = tmsg.type + 1
msgdata = (c_ubyte * NORM_MSG_SIZE)()
replymsg = mempair(p9msg, msgdata)
replymsg.type = rtype
replymsg.tag = tmsg.tag
(baddr, bsize) = replymsg.carbuf()
replymsg.size = bsize
return replymsg
def recv(self):
"""
Receive a request message from the client
"""
msgdata = (c_ubyte * NORM_MSG_SIZE)()
msg = mempair(p9msg, msgdata)
(baddr, blen) = msg.databuf()
l = libc.recv(self.__clsock, baddr, blen, 0)
hdr = msg.car()
if l > sizeof(hdr):
if hdr.size > l:
if hdr.size > MAX_MSG_SIZE:
raise IOError ("The message is too large: %d bytes" % hdr.size)
resize(msgdata, hdr.size)
(baddr, blen) = msg.databuf()
l2 = libc.recv(self.__clsock, baddr + hdr.size - l, blen - l, 0)
if l2 > 0:
l += l2
else:
raise IOError ("Unable to read the %d remaining bytes" % blen - l)
else:
raise IOError ("Unable to read the message")
return (l, msg)