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2012-10-24qmp: add pull_event functionPaolo Bonzini1-0/+20
This function is unlike get_events in that it makes it easy to process one event at a time. This is useful in the mirroring test cases, where we want to process just one event (BLOCK_JOB_ERROR) and leave the others to a helper function. Acked-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-10-24qmp: fix __accept() in qmp.pyJeff Cody1-0/+1
In QEMUMonitorProtocol, commit e9d17b6 removed the __sockfile creation from __negotiate_capabilities(), which breaks _accept(). This causes failures in qemu-io python based tests (i.e. tests 030 and 040). This patch creates the sockfile in __accept() as well. Signed-off-by: Jeff Cody <jcody@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Acked-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-26Support settimeout in QEMUMonitorProtocolRyota Ozaki1-0/+5
This method is used in the following qemu-ga-client script to implement non-blocking operations. Signed-off-by: Ryota Ozaki <ozaki.ryota@gmail.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-09-26Make negotiation optional in QEMUMonitorProtocolRyota Ozaki1-3/+4
This is a preparation for qemu-ga-client which uses QEMUMonitorProtocol class. The class tries to negotiate capabilities on connect, however, qemu-ga doesn't suppose it and fails. This change makes the negotiation optional, though it's still performed by default for compatibility. Signed-off-by: Ryota Ozaki <ozaki.ryota@gmail.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-02-22qmp: make qmp.py easier to useAnthony Liguori1-0/+6
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-06-01QMP: add server mode to QEMUMonitorProtocolStefan Hajnoczi1-11/+32
QEMU supports socket chardevs that establish connections like a server or a client. The QEMUMonitorProtocol class only supports connecting as a client. It is not possible to connect race-free when launching QEMU since trying to connect before QEMU has bound and is listening on the socket results in failure. Add the QEMUMonitorProtocol(server=True) argument to bind and listen on the socket. The QEMU process can then be launched and connects to the already existing QMP socket without a race condition: qmp = qmp.QEMUMonitorProtocol(monitor_path, server=True) popen = subprocess.Popen(args) qmp.accept() Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-06-01QMP: add get_events(wait=True) optionStefan Hajnoczi1-3/+8
The get_events() function polls for new QMP events and then returns. It can be useful to wait for the next QMP event so add the boolean 'wait' keyword argument. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-11-17QMP: Revamp the Python class exampleLuiz Capitulino1-51/+106
This commit simplifies and fixes a number of problems in the Python QEMUMonitorProtocol example class. It's almost a rewrite and it DOES BREAK the qmp-shell script (which is going to be fixed in the next commit). However, I'm not going to split this in different commits because it could get up to 10 commits, it's really not worth it for a simple demo class. Highlights: o TCP sockets support o QMP events support o Add documentation o Fix a number of unhandled errors o Simplify methods that send commands to the Monitor Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-07-01QMP: Fix python helper /wrt long return stringsJan Kiszka1-1/+5
Remove the arbitrary limitation of 1024 characters per return string and read complete lines instead. Required for device_show. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2009-12-03QMP: Introduce qmp-shellLuiz Capitulino1-0/+72
This is a very simple shell written in Python for demonstration purposes. Unfortunately it's a bit awkward right now, as the user has to specify the arguments names and the printed data can be a raw dictionary or list, like the following example: (QEMU) pci_add pci_addr=auto type=nic {u'slot': 5, u'bus': 0, u'domain': 0, u'function': 0} (QEMU) It's worth to note that the shell is broken into two files. One is the shell itself, the other is the QMP class which handles the communication with QEMU. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>