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# QEMU qtest library
#
# Copyright (C) 2015 Red Hat Inc.
#
# Authors:
# Fam Zheng <famz@redhat.com>
#
# This work is licensed under the terms of the GNU GPL, version 2. See
# the COPYING file in the top-level directory.
#
# Based on qmp.py.
#
import errno
import socket
class QEMUQtestProtocol(object):
def __init__(self, address, server=False):
"""
Create a QEMUQtestProtocol object.
@param address: QEMU address, can be either a unix socket path (string)
or a tuple in the form ( address, port ) for a TCP
connection
@param server: server mode, listens on the socket (bool)
@raise socket.error on socket connection errors
@note No connection is established, this is done by the connect() or
accept() methods
"""
self._address = address
self._sock = self._get_sock()
if server:
self._sock.bind(self._address)
self._sock.listen(1)
def _get_sock(self):
if isinstance(self._address, tuple):
family = socket.AF_INET
else:
family = socket.AF_UNIX
return socket.socket(family, socket.SOCK_STREAM)
def connect(self):
"""
Connect to the qtest socket.
@raise socket.error on socket connection errors
"""
self._sock.connect(self._address)
def accept(self):
"""
Await connection from QEMU.
@raise socket.error on socket connection errors
"""
self._sock, _ = self._sock.accept()
def cmd(self, qtest_cmd):
"""
Send a qtest command on the wire.
@param qtest_cmd: qtest command text to be sent
"""
self._sock.sendall(qtest_cmd + "\n")
def close(self):
self._sock.close()
def settimeout(self, timeout):
self._sock.settimeout(timeout)
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