perf tools: Add trace-event object
Add trace-event object to keep together 'struct pevent' object with its
loaded plugins with following interface:
int trace_event__init(struct trace_event *t);
- Initalizes 'struct pevent' object and loads plugins for it
void trace_event__cleanup(struct trace_event *t);
- Cleanups both 'struct pevent' and plugins
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1386076182-14484-10-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/trace-event.c b/tools/perf/util/trace-event.c
new file mode 100644
index 0000000..a155a77
--- /dev/null
+++ b/tools/perf/util/trace-event.c
@@ -0,0 +1,21 @@
+
+#include <traceevent/event-parse.h>
+#include "trace-event.h"
+
+int trace_event__init(struct trace_event *t)
+{
+ struct pevent *pevent = pevent_alloc();
+
+ if (pevent) {
+ t->plugin_list = traceevent_load_plugins(pevent);
+ t->pevent = pevent;
+ }
+
+ return pevent ? 0 : -1;
+}
+
+void trace_event__cleanup(struct trace_event *t)
+{
+ pevent_free(t->pevent);
+ traceevent_unload_plugins(t->plugin_list);
+}