trace/simple: add st_init_group

[mirror_qemu.git] / trace / event-internal.h

diff --git a/trace/event-internal.h b/trace/event-internal.h
index b2310d9beae443b7ec8943d9853462a86136be5d..f63500b37e6e4fefda4e97eac811f935ae40e3fb 100644 (file)
--- a/trace/event-internal.h
+++ b/trace/event-internal.h
@@ -1,7 +1,7 @@
 /*
  * Interface for configuring and controlling the state of tracing events.
  *
- * Copyright (C) 2012 Lluís Vilanova <vilanova@ac.upc.edu>
+ * 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.
@@ -10,24 +10,35 @@
 #ifndef TRACE__EVENT_INTERNAL_H
 #define TRACE__EVENT_INTERNAL_H
 
-#include "trace/generated-events.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.
+ * @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 {
-    TraceEventID id;
+    uint32_t id;
+    uint32_t vcpu_id;
     const char * name;
     const bool sstate;
-    bool dstate;
+    uint16_t *dstate;
 } TraceEvent;
 
+void trace_event_set_state_dynamic_init(TraceEvent *ev, bool state);
 
-#endif  /* TRACE__EVENT_INTERNAL_H */
+#endif /* TRACE__EVENT_INTERNAL_H */