This method directly sends data to the QMP monitor and returns its
response without any kind of special treatment or sanity checking.
The send_cmd() method is also introduced. It's a simple wrapper
which sends a QMP command to the monitor.
Both methods are going to be used by the QMP test-suite.
TODO: Refactor _get_command_output() and/or cmd() to use the new
methods.
Signed-off-by: Luiz Capitulino <[email protected]>
---
client/tests/kvm/kvm_monitor.py | 49 +++++++++++++++++++++++++++++++++++++++
1 files changed, 49 insertions(+), 0 deletions(-)
diff --git a/client/tests/kvm/kvm_monitor.py b/client/tests/kvm/kvm_monitor.py
index c23835c..9a66388 100644
--- a/client/tests/kvm/kvm_monitor.py
+++ b/client/tests/kvm/kvm_monitor.py
@@ -604,6 +604,55 @@ class QMPMonitor(Monitor):
return self._greeting
+ def send(self, data, timeout=20):
+ """
+ Send data to the QMP monitor and return its response.
+
+ @param data: Data to send
+ @param timeout: Time duration to wait for response
+ @return: The response received
+ @raise MonitorLockError: Raised if the lock cannot be acquired
+ @raise MonitorSendError: Raised if the command cannot be sent
+ @raise MonitorProtocolError: Raised if no response is received
+ """
+ if not self._acquire_lock(20):
+ raise MonitorLockError("Could not acquire exclusive lock to send "
+ "QMP command '%s'" % cmd)
+ try:
+ self._read_objects()
+ self._socket.sendall(data)
+ end_time = time.time() + timeout
+ while time.time() < end_time:
+ for obj in self._read_objects():
+ if isinstance(obj, dict):
+ if "return" in obj or "error" in obj:
+ return obj
+ time.sleep(0.1)
+ else:
+ raise MonitorProtocolError("Received no response (data: %s)"
+ % str(data))
+ except socket.error:
+ raise MonitorSendError("Could not send data '%s'" % str(data))
+ finally:
+ self._lock.release()
+
+
+ def send_cmd(self, command, timeout=20):
+ """
+ Send a QMP command. This is a simple wrapper to send() method that does
+ JSON formatting.
+
+ @param command: QMP command to send
+ @param timeout: Time duration to wait for response
+ @return: The response received
+ @raise MonitorLockError: Raised if the lock cannot be acquired
+ @raise MonitorSendError: Raised if the command cannot be sent
+ @raise MonitorProtocolError: Raised if no response is received
+
+ """
+ return self.send(json.dumps(command) + "\n", timeout)
+
+
# Command wrappers
# Note: all of the following functions raise exceptions in a similar manner
# to cmd() and _get_command_output().
--
1.7.3.1.104.gc752e
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