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-rw-r--r--QMP/qmp.py33
1 files changed, 30 insertions, 3 deletions
diff --git a/QMP/qmp.py b/QMP/qmp.py
index 36ecc1dfae..c551df1ed7 100644
--- a/QMP/qmp.py
+++ b/QMP/qmp.py
@@ -49,7 +49,6 @@ class QEMUMonitorProtocol:
return socket.socket(family, socket.SOCK_STREAM)
def __negotiate_capabilities(self):
- self.__sockfile = self.__sock.makefile()
greeting = self.__json_read()
if greeting is None or not greeting.has_key('QMP'):
raise QMPConnectError
@@ -73,7 +72,7 @@ class QEMUMonitorProtocol:
error = socket.error
- def connect(self):
+ def connect(self, negotiate=True):
"""
Connect to the QMP Monitor and perform capabilities negotiation.
@@ -83,7 +82,9 @@ class QEMUMonitorProtocol:
@raise QMPCapabilitiesError if fails to negotiate capabilities
"""
self.__sock.connect(self.__address)
- return self.__negotiate_capabilities()
+ self.__sockfile = self.__sock.makefile()
+ if negotiate:
+ return self.__negotiate_capabilities()
def accept(self):
"""
@@ -95,6 +96,7 @@ class QEMUMonitorProtocol:
@raise QMPCapabilitiesError if fails to negotiate capabilities
"""
self.__sock, _ = self.__sock.accept()
+ self.__sockfile = self.__sock.makefile()
return self.__negotiate_capabilities()
def cmd_obj(self, qmp_cmd):
@@ -134,6 +136,26 @@ class QEMUMonitorProtocol:
raise Exception(ret['error']['desc'])
return ret['return']
+ def pull_event(self, wait=False):
+ """
+ Get and delete the first available QMP event.
+
+ @param wait: block until an event is available (bool)
+ """
+ self.__sock.setblocking(0)
+ try:
+ self.__json_read()
+ except socket.error, err:
+ if err[0] == errno.EAGAIN:
+ # No data available
+ pass
+ self.__sock.setblocking(1)
+ if not self.__events and wait:
+ self.__json_read(only_event=True)
+ event = self.__events[0]
+ del self.__events[0]
+ return event
+
def get_events(self, wait=False):
"""
Get a list of available QMP events.
@@ -161,3 +183,8 @@ class QEMUMonitorProtocol:
def close(self):
self.__sock.close()
self.__sockfile.close()
+
+ timeout = socket.timeout
+
+ def settimeout(self, timeout):
+ self.__sock.settimeout(timeout)