diff options
Diffstat (limited to 'trace')
| -rw-r--r-- | trace/control.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/trace/control.h b/trace/control.h index b931824d60..1903e22975 100644 --- a/trace/control.h +++ b/trace/control.h @@ -96,7 +96,7 @@ static const char * trace_event_get_name(TraceEvent *ev); * trace_event_get_state: * @id: Event identifier name. * - * Get the tracing state of an event (both static and dynamic). + * Get the tracing state of an event, both static and the QEMU dynamic state. * * If the event has the disabled property, the check will have no performance * impact. @@ -105,6 +105,22 @@ static const char * trace_event_get_name(TraceEvent *ev); ((id ##_ENABLED) && trace_event_get_state_dynamic_by_id(id)) /** + * trace_event_get_state_backends: + * @id: Event identifier name. + * + * Get the tracing state of an event, both static and dynamic state from all + * compiled-in backends. + * + * If the event has the disabled property, the check will have no performance + * impact. + * + * Returns: true if at least one backend has the event enabled and the event + * does not have the disabled property. + */ +#define trace_event_get_state_backends(id) \ + ((id ##_ENABLED) && id ##_BACKEND_DSTATE()) + +/** * trace_event_get_vcpu_state: * @vcpu: Target vCPU. * @id: Event identifier name. |