[libvirt] [PATCH 2/8] Add qemuMonitorGetObjectProperty() method for QMP qom-get command
Daniel P. Berrange
berrange at redhat.com
Wed Jul 3 10:57:08 UTC 2013
On Tue, Jul 02, 2013 at 09:39:20AM -0400, John Ferlan wrote:
> 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;
> +};
I think the struct/enum should be kept in qemu_monitor_json.h
> +
> +int qemuMonitorGetObjectProperty(qemuMonitorPtr mon,
> + const char *path,
> + const char *property,
> + qemuMonitorObjectPropertyPtr prop);
and not expose this method in qemu_monitor.h
Daniel
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