#define TRACE__CONTROL_H
#include "qemu-common.h"
-#include "trace/generated-events.h"
+#include "event-internal.h"
+
+typedef struct TraceEventIter {
+ size_t event;
+ size_t group;
+ const char *pattern;
+} TraceEventIter;
/**
- * TraceEventID:
- *
- * Unique tracing event identifier.
- *
- * These are named as 'TRACE_${EVENT_NAME}'.
+ * trace_event_iter_init:
+ * @iter: the event iterator struct
+ * @pattern: optional pattern to filter events on name
*
- * See also: "trace/generated-events.h"
+ * Initialize the event iterator struct @iter,
+ * optionally using @pattern to filter out events
+ * with non-matching names.
*/
-enum TraceEventID;
+void trace_event_iter_init(TraceEventIter *iter, const char *pattern);
/**
- * trace_event_id:
- * @id: Event identifier.
- *
- * Get an event by its identifier.
+ * trace_event_iter_next:
+ * @iter: the event iterator struct
*
- * This routine has a constant cost, as opposed to trace_event_name and
- * trace_event_pattern.
- *
- * Pre-conditions: The identifier is valid.
- *
- * Returns: pointer to #TraceEvent.
+ * Get the next event, if any. When this returns NULL,
+ * the iterator should no longer be used.
*
+ * Returns: the next event, or NULL if no more events exist
*/
-static TraceEvent *trace_event_id(TraceEventID id);
+TraceEvent *trace_event_iter_next(TraceEventIter *iter);
+
/**
* trace_event_name:
*/
TraceEvent *trace_event_name(const char *name);
-/**
- * trace_event_pattern:
- * @pat: Event name pattern.
- * @ev: Event to start searching from (not included).
- *
- * Get all events with a given name pattern.
- *
- * Returns: pointer to #TraceEvent or NULL if not found.
- */
-TraceEvent *trace_event_pattern(const char *pat, TraceEvent *ev);
-
/**
* trace_event_is_pattern:
*
*/
static bool trace_event_is_pattern(const char *str);
-/**
- * trace_event_count:
- *
- * Return the number of events.
- */
-static TraceEventID trace_event_count(void);
-
-
/**
* trace_event_get_id:
*
* Get the identifier of an event.
*/
-static TraceEventID trace_event_get_id(TraceEvent *ev);
+static uint32_t trace_event_get_id(TraceEvent *ev);
/**
* trace_event_get_vcpu_id:
*
* Get the per-vCPU identifier of an event.
*
- * Special value #TRACE_VCPU_EVENT_COUNT means the event is not vCPU-specific
+ * Special value #TRACE_VCPU_EVENT_NONE means the event is not vCPU-specific
* (does not have the "vcpu" property).
*/
-static TraceEventVCPUID trace_event_get_vcpu_id(TraceEvent *ev);
+static uint32_t trace_event_get_vcpu_id(TraceEvent *ev);
/**
* trace_event_is_vcpu:
/**
* trace_event_get_state:
- * @id: Event identifier.
+ * @id: Event identifier name.
*
* Get the tracing state of an event (both static and dynamic).
*
* If the event has the disabled property, the check will have no performance
* impact.
- *
- * As a down side, you must always use an immediate #TraceEventID value.
*/
#define trace_event_get_state(id) \
((id ##_ENABLED) && trace_event_get_state_dynamic_by_id(id))
/**
* trace_event_get_vcpu_state:
* @vcpu: Target vCPU.
- * @id: Event identifier (TraceEventID).
- * @vcpu_id: Per-vCPU event identifier (TraceEventVCPUID).
+ * @id: Event identifier name.
*
* Get the tracing state of an event (both static and dynamic) for the given
* vCPU.
*
* If the event has the disabled property, the check will have no performance
* impact.
- *
- * As a down side, you must always use an immediate #TraceEventID value.
*/
-#define trace_event_get_vcpu_state(vcpu, id, vcpu_id) \
- ((id ##_ENABLED) && trace_event_get_vcpu_state_dynamic_by_vcpu_id(vcpu, vcpu_id))
+#define trace_event_get_vcpu_state(vcpu, id) \
+ ((id ##_ENABLED) && \
+ trace_event_get_vcpu_state_dynamic_by_vcpu_id( \
+ vcpu, _ ## id ## _EVENT.vcpu_id))
/**
* trace_event_get_state_static:
*/
static bool trace_event_get_vcpu_state_dynamic(CPUState *vcpu, TraceEvent *ev);
-/**
- * trace_event_set_state:
- *
- * Set the tracing state of an event (only if possible).
- */
-#define trace_event_set_state(id, state) \
- do { \
- if ((id ##_ENABLED)) { \
- TraceEvent *_e = trace_event_id(id); \
- trace_event_set_state_dynamic(_e, state); \
- } \
- } while (0)
-
-/**
- * trace_event_set_vcpu_state:
- *
- * Set the tracing state of an event for the given vCPU (only if not disabled).
- */
-#define trace_event_set_vcpu_state(vcpu, id, state) \
- do { \
- if ((id ##_ENABLED)) { \
- TraceEvent *_e = trace_event_id(id); \
- trace_event_set_vcpu_state_dynamic(vcpu, _e, state); \
- } \
- } while (0)
/**
* trace_event_set_state_dynamic:
*/
void trace_init_file(const char *file);
+/**
+ * trace_init_vcpu:
+ * @vcpu: Added vCPU.
+ *
+ * Set initial dynamic event state for a hot-plugged vCPU.
+ */
+void trace_init_vcpu(CPUState *vcpu);
+
/**
* trace_list_events:
*
char *trace_opt_parse(const char *optarg);
/**
- * trace_init_vcpu_events:
+ * trace_get_vcpu_event_count:
*
- * Re-synchronize initial event state with vCPUs (which can be created after
- * trace_init_events()).
+ * Return the number of known vcpu-specific events
*/
-void trace_init_vcpu_events(void);
+uint32_t trace_get_vcpu_event_count(void);
#include "trace/control-internal.h"
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