Re: [libvirt] [PATCH 2/8] Add qemuMonitorGetObjectProperty() method for QMP qom-get command

Add a new qemuMonitorGetObjectProperty() method to support invocation of the 'qom-get' JSON monitor command with a provided path, property, and expected data type return. The qemuMonitorObjectProperty is similar to virTypedParameter; however, a future patch will extend it a bit to include a void pointer to balloon driver statistic data. The provided test will execute a qom-get on "/machine/i440fx" which will return a property "realized". --- src/qemu/qemu_monitor.c | 23 ++++++++++++ src/qemu/qemu_monitor.h | 33 +++++++++++++++++ src/qemu/qemu_monitor_json.c | 86 ++++++++++++++++++++++++++++++++++++++++++++ src/qemu/qemu_monitor_json.h | 6 ++++ tests/qemumonitorjsontest.c | 48 +++++++++++++++++++++++++ 5 files changed, 196 insertions(+)

diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h index 2e92f8c..cc22123 100644 --- a/src/qemu/qemu_monitor.h +++ b/src/qemu/qemu_monitor.h @@ -694,6 +694,39 @@ int qemuMonitorGetObjectListPaths(qemuMonitorPtr mon, void qemuMonitorListPathFree(qemuMonitorListPathPtr paths); +/* Flags for the 'type' field in _qemuMonitorObjectProperty */ +typedef enum { + QEMU_MONITOR_OBJECT_PROPERTY_BOOLEAN=1, + QEMU_MONITOR_OBJECT_PROPERTY_INT, + QEMU_MONITOR_OBJECT_PROPERTY_LONG, + QEMU_MONITOR_OBJECT_PROPERTY_UINT, + QEMU_MONITOR_OBJECT_PROPERTY_ULONG, + QEMU_MONITOR_OBJECT_PROPERTY_DOUBLE, + QEMU_MONITOR_OBJECT_PROPERTY_STRING, + + QEMU_MONITOR_OBJECT_PROPERTY_LAST +} qemuMonitorObjectPropertyType; + +typedef struct _qemuMonitorObjectProperty qemuMonitorObjectProperty; +typedef qemuMonitorObjectProperty *qemuMonitorObjectPropertyPtr; +struct _qemuMonitorObjectProperty { + int type; /* qemuMonitorObjectPropertyType */ + union { + bool b; + int i; + long long l; + unsigned int ui; + unsigned long long ul; + double d; + char *str; + } val; +};

+ +int qemuMonitorGetObjectProperty(qemuMonitorPtr mon, + const char *path, + const char *property, + qemuMonitorObjectPropertyPtr prop);