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/*
* Interface for configuring and controlling the state of tracing events.
*
* Copyright (C) 2012-2016 Lluís Vilanova <vilanova@ac.upc.edu>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef TRACE__EVENT_INTERNAL_H
#define TRACE__EVENT_INTERNAL_H
/*
* Special value for TraceEvent.vcpu_id field to indicate
* that the event is not VCPU specific
*/
#define TRACE_VCPU_EVENT_NONE ((uint32_t)-1)
/**
* TraceEvent:
* @id: Unique event identifier.
* @vcpu_id: Unique per-vCPU event identifier.
* @name: Event name.
* @sstate: Static tracing state.
* @dstate: Dynamic tracing state
*
* Interpretation of @dstate depends on whether the event has the 'vcpu'
* property:
* - false: Boolean value indicating whether the event is active.
* - true : Integral counting the number of vCPUs that have this event enabled.
*
* Opaque generic description of a tracing event.
*/
typedef struct TraceEvent {
uint32_t id;
uint32_t vcpu_id;
const char * name;
const bool sstate;
uint16_t *dstate;
} TraceEvent;
void trace_event_set_state_dynamic_init(TraceEvent *ev, bool state);
#endif /* TRACE__EVENT_INTERNAL_H */
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