#ifndef TRACE__CONTROL_H
#define TRACE__CONTROL_H
-#include "qemu-common.h"
-#include "trace/generated-events.h"
+#include "event-internal.h"
typedef struct TraceEventIter {
+ /* iter state */
size_t event;
+ size_t group;
+ /* filter conditions */
+ size_t group_id;
const char *pattern;
} TraceEventIter;
+
/**
- * TraceEventID:
- *
- * Unique tracing event identifier.
- *
- * These are named as 'TRACE_${EVENT_NAME}'.
+ * trace_event_iter_init_all:
+ * @iter: the event iterator struct
*
- * See also: "trace/generated-events.h"
+ * Initialize the event iterator struct @iter,
+ * for all events.
*/
-enum TraceEventID;
-
+void trace_event_iter_init_all(TraceEventIter *iter);
/**
- * trace_event_iter_init:
+ * trace_event_iter_init_pattern:
* @iter: the event iterator struct
- * @pattern: optional pattern to filter events on name
+ * @pattern: pattern to filter events on name
*
* Initialize the event iterator struct @iter,
- * optionally using @pattern to filter out events
+ * using @pattern to filter out events
* with non-matching names.
*/
-void trace_event_iter_init(TraceEventIter *iter, const char *pattern);
+void trace_event_iter_init_pattern(TraceEventIter *iter, const char *pattern);
+
+/**
+ * trace_event_iter_init_group:
+ * @iter: the event iterator struct
+ * @group_id: group_id to filter events by group.
+ *
+ * Initialize the event iterator struct @iter,
+ * using @group_id to filter for events in the group.
+ */
+void trace_event_iter_init_group(TraceEventIter *iter, size_t group_id);
/**
* trace_event_iter_next:
*
* Get the identifier of an event.
*/
-static TraceEventID 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
- * (does not have the "vcpu" property).
- */
-static TraceEventVCPUID trace_event_get_vcpu_id(TraceEvent *ev);
-
-/**
- * trace_event_is_vcpu:
- *
- * Whether this is a per-vCPU event.
- */
-static bool trace_event_is_vcpu(TraceEvent *ev);
+static uint32_t trace_event_get_id(TraceEvent *ev);
/**
* trace_event_get_name:
/**
* trace_event_get_state:
- * @id: Event identifier.
+ * @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.
- *
- * 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).
+ * trace_event_get_state_backends:
+ * @id: Event identifier name.
*
- * Get the tracing state of an event (both static and dynamic) for the given
- * vCPU.
+ * 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.
*
- * As a down side, you must always use an immediate #TraceEventID value.
+ * Returns: true if at least one backend has the event enabled and the event
+ * does not have the disabled property.
*/
-#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_state_backends(id) \
+ ((id ##_ENABLED) && id ##_BACKEND_DSTATE())
/**
* trace_event_get_state_static:
*/
static bool trace_event_get_state_dynamic(TraceEvent *ev);
-/**
- * trace_event_get_vcpu_state_dynamic:
- *
- * Get the dynamic tracing state of an event for the given vCPU.
- */
-static bool trace_event_get_vcpu_state_dynamic(CPUState *vcpu, TraceEvent *ev);
-
-
/**
* trace_event_set_state_dynamic:
*
*/
void trace_event_set_state_dynamic(TraceEvent *ev, bool state);
-/**
- * trace_event_set_vcpu_state_dynamic:
- *
- * Set the dynamic tracing state of an event for the given vCPU.
- *
- * Pre-condition: trace_event_get_vcpu_state_static(ev) == true
- */
-void trace_event_set_vcpu_state_dynamic(CPUState *vcpu,
- TraceEvent *ev, bool state);
-
-
-
/**
* trace_init_backends:
- * @file: Name of trace output file; may be NULL.
- * Corresponds to commandline option "-trace file=...".
*
* Initialize the tracing backend.
*
/**
* trace_init_file:
- * @file: Name of trace output file; may be NULL.
- * Corresponds to commandline option "-trace file=...".
*
* Record the name of the output file for the tracing backend.
* Exits if no selected backend does not support specifying the
- * output file, and a non-NULL file was passed.
- */
-void trace_init_file(const char *file);
-
-/**
- * trace_init_vcpu:
- * @vcpu: Added vCPU.
- *
- * Set initial dynamic event state for a hot-plugged vCPU.
+ * output file, and a file was specified with "-trace file=...".
*/
-void trace_init_vcpu(CPUState *vcpu);
+void trace_init_file(void);
/**
* trace_list_events:
+ * @f: Where to send output.
*
* List all available events.
*/
-void trace_list_events(void);
+void trace_list_events(FILE *f);
/**
* trace_enable_events:
/**
* trace_opt_parse:
- * @optarg: A string argument of --trace command line argument
+ * @optstr: A string argument of --trace command line argument
*
* Initialize tracing subsystem.
+ */
+void trace_opt_parse(const char *optstr);
+
+/**
+ * trace_get_vcpu_event_count:
*
- * Returns the filename to save trace to. It must be freed with g_free().
+ * Return the number of known vcpu-specific events
*/
-char *trace_opt_parse(const char *optarg);
+uint32_t trace_get_vcpu_event_count(void);
-#include "trace/control-internal.h"
+#include "control-internal.h"
#endif /* TRACE__CONTROL_H */
projects / mirror_qemu.git / blobdiff