Re: [libvirt] [PATCH v2 06/10] Add capability to fetch balloon stats

This patch will add the QEMU_MONITOR_OBJECT_PROPERTY_BALLOON_STATS type and a mechanism in the qemuMonitorObjectProperty to fetch and store an opaque data array assuming that we are provided a count of current elements, a count of maximum elements, and the address of the array store the data. Use the mechanism to fetch balloon driver statistics. --- src/qemu/qemu_monitor.c | 3 +- src/qemu/qemu_monitor_json.c | 206 ++++++++++++++++++++----------------------- src/qemu/qemu_monitor_json.h | 5 ++ 3 files changed, 103 insertions(+), 111 deletions(-)

@@ -4747,6 +4729,9 @@ int qemuMonitorJSONGetObjectProperty(qemuMonitorPtr mon, if (tmp) ret = 0; break; + case QEMU_MONITOR_OBJECT_PROPERTY_BALLOON_STATS: + ret = qemuMonitorJSONGetBalloonStats(data, prop); + break; case QEMU_MONITOR_OBJECT_PROPERTY_LAST: default: virReportError(VIR_ERR_INTERNAL_ERROR, @@ -4810,6 +4795,7 @@ int qemuMonitorJSONSetObjectProperty(qemuMonitorPtr mon, case QEMU_MONITOR_OBJECT_PROPERTY_STRING: MAKE_SET_CMD("s:value", prop->val.str); break; + case QEMU_MONITOR_OBJECT_PROPERTY_BALLOON_STATS: case QEMU_MONITOR_OBJECT_PROPERTY_LAST: default: virReportError(VIR_ERR_INTERNAL_ERROR, @@ -4830,7 +4816,7 @@ cleanup: return ret; } -

@@ -360,6 +361,7 @@ typedef enum { QEMU_MONITOR_OBJECT_PROPERTY_ULONG, QEMU_MONITOR_OBJECT_PROPERTY_DOUBLE, QEMU_MONITOR_OBJECT_PROPERTY_STRING, + QEMU_MONITOR_OBJECT_PROPERTY_BALLOON_STATS, QEMU_MONITOR_OBJECT_PROPERTY_LAST } qemuMonitorJSONObjectPropertyType; @@ -368,6 +370,8 @@ typedef struct _qemuMonitorJSONObjectProperty qemuMonitorJSONObjectProperty; typedef qemuMonitorJSONObjectProperty *qemuMonitorJSONObjectPropertyPtr; struct _qemuMonitorJSONObjectProperty { int type; /* qemuMonitorJSONObjectPropertyType */ + int curelems; /* Current number elements in **ptr array */ + int maxelems; /* Maximum number elements allowed in any **ptr array */ union { bool b; int i; @@ -376,6 +380,7 @@ struct _qemuMonitorJSONObjectProperty { unsigned long long ul; double d; char *str; + void **ptr; } val;