[PATCH 6/6] trace-cmd: Remove tep_data_event_from_type() API

[Tzvetomir Stoyanov <tstoyanov@vmware.com>]

In order to make libtraceevent into a proper library, its API
should be straightforward.

After discussion with Steven Rostedt, we decided to remove the
tep_data_event_from_type() API and to replace it with tep_find_event(),
as it does the same.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20181201040852.913841066@goodmis.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 include/traceevent/event-parse.h |  1 -
 kernel-shark/src/libkshark.c     |  7 +++----
 lib/traceevent/event-parse.c     | 12 ------------
 python/tracecmd.py               |  8 ++++----
 tracecmd/trace-hist.c            |  4 ++--
 tracecmd/trace-mem.c             |  2 +-
 tracecmd/trace-record.c          |  2 +-
 7 files changed, 11 insertions(+), 25 deletions(-)

diff --git a/include/traceevent/event-parse.h b/include/traceevent/event-parse.h
index 2dc5822..bdc6101 100644
--- a/include/traceevent/event-parse.h
+++ b/include/traceevent/event-parse.h
@@ -515,7 +515,6 @@ tep_find_event_by_record(struct tep_handle *pevent, struct tep_record *record);
 void tep_data_lat_fmt(struct tep_handle *pevent,
 		      struct trace_seq *s, struct tep_record *record);
 int tep_data_type(struct tep_handle *pevent, struct tep_record *rec);
-struct tep_event *tep_data_event_from_type(struct tep_handle *pevent, int type);
 int tep_data_pid(struct tep_handle *pevent, struct tep_record *rec);
 int tep_data_preempt_count(struct tep_handle *pevent, struct tep_record *rec);
 int tep_data_flags(struct tep_handle *pevent, struct tep_record *rec);
diff --git a/kernel-shark/src/libkshark.c b/kernel-shark/src/libkshark.c
index 5033e47..6a26f28 100644
--- a/kernel-shark/src/libkshark.c
+++ b/kernel-shark/src/libkshark.c
@@ -1187,7 +1187,7 @@ const char *kshark_get_event_name_easy(struct kshark_entry *entry)
 	 * Use a mutex to protect the access.
 	 */
 	pthread_mutex_lock(&kshark_ctx->input_mutex);
-	event = tep_data_event_from_type(kshark_ctx->pevent, event_id);
+	event = tep_find_event(kshark_ctx->pevent, event_id);
 	pthread_mutex_unlock(&kshark_ctx->input_mutex);
 
 	if (event)
@@ -1236,7 +1236,7 @@ const char *kshark_get_info_easy(struct kshark_entry *entry)
 
 	data = tracecmd_read_at(kshark_ctx->handle, entry->offset, NULL);
 	event_id = tep_data_type(kshark_ctx->pevent, data);
-	event = tep_data_event_from_type(kshark_ctx->pevent, event_id);
+	event = tep_find_event(kshark_ctx->pevent, event_id);
 	if (event)
 		info = kshark_get_info(kshark_ctx->pevent, data, event);
 
@@ -1330,8 +1330,7 @@ char* kshark_dump_entry(const struct kshark_entry *entry)
 		data = tracecmd_read_at(kshark_ctx->handle, entry->offset,
 					NULL);
 
-		event = tep_data_event_from_type(kshark_ctx->pevent,
-						 entry->event_id);
+		event = tep_find_event(kshark_ctx->pevent, entry->event_id);
 
 		event_name = event? event->name : "[UNKNOWN EVENT]";
 		lat = kshark_get_latency(kshark_ctx->pevent, data);
diff --git a/lib/traceevent/event-parse.c b/lib/traceevent/event-parse.c
index 8cdb5a3..ca2989b 100644
--- a/lib/traceevent/event-parse.c
+++ b/lib/traceevent/event-parse.c
@@ -5266,18 +5266,6 @@ int tep_data_type(struct tep_handle *pevent, struct tep_record *rec)
 	return trace_parse_common_type(pevent, rec->data);
 }
 
-/**
- * tep_data_event_from_type - find the event by a given type
- * @pevent: a handle to the pevent
- * @type: the type of the event.
- *
- * This returns the event form a given @type;
- */
-struct tep_event *tep_data_event_from_type(struct tep_handle *pevent, int type)
-{
-	return tep_find_event(pevent, type);
-}
-
 /**
  * tep_data_pid - parse the PID from record
  * @pevent: a handle to the pevent
diff --git a/python/tracecmd.py b/python/tracecmd.py
index 60a0d3e..a6671f6 100644
--- a/python/tracecmd.py
+++ b/python/tracecmd.py
@@ -204,7 +204,7 @@ class Trace(object):
         rec = tracecmd_read_data(self._handle, cpu)
         if rec:
             type = tep_data_type(self._pevent, rec)
-            format = tep_data_event_from_type(self._pevent, type)
+            format = tep_find_event(self._pevent, type)
             # rec ownership goes over to Event instance
             return Event(self._pevent, rec, format)
         return None
@@ -216,7 +216,7 @@ class Trace(object):
             return None
         rec, cpu = res
         type = tep_data_type(self._pevent, rec)
-        format = tep_data_event_from_type(self._pevent, type)
+        format = tep_find_event(self._pevent, type)
         # rec ownership goes over to Event instance
         return Event(self._pevent, rec, format)
 
@@ -226,7 +226,7 @@ class Trace(object):
             return None
         rec, cpu = res
         type = tep_data_type(self._pevent, rec)
-        format = tep_data_event_from_type(self._pevent, type)
+        format = tep_find_event(self._pevent, type)
         return Event(self._pevent, rec, format)
 
     def peek_event(self, cpu):
@@ -234,7 +234,7 @@ class Trace(object):
         if rec is None:
             return None
         type = tep_data_type(self._pevent, rec)
-        format = tep_data_event_from_type(self._pevent, type)
+        format = tep_find_event(self._pevent, type)
         # rec ownership goes over to Event instance
         return Event(self._pevent, rec, format)
 
diff --git a/tracecmd/trace-hist.c b/tracecmd/trace-hist.c
index bd47163..384a7ff 100644
--- a/tracecmd/trace-hist.c
+++ b/tracecmd/trace-hist.c
@@ -541,7 +541,7 @@ process_event(struct tep_handle *pevent, struct tep_record *record, int type)
 		reset_pending_stack();
 	}
 		
-	event = tep_data_event_from_type(pevent, type);
+	event = tep_find_event(pevent, type);
 	event_name = event->name;
 
 	ret = tep_read_number_field(common_pid_field, record->data, &val);
@@ -952,7 +952,7 @@ static void do_trace_hist(struct tracecmd_input *handle)
 		die("No records found in file");
 
 	ret = tep_data_type(pevent, record);
-	event = tep_data_event_from_type(pevent, ret);
+	event = tep_find_event(pevent, ret);
 
 	long_size = tracecmd_long_size(handle);
 
diff --git a/tracecmd/trace-mem.c b/tracecmd/trace-mem.c
index 059bf9a..078a61b 100644
--- a/tracecmd/trace-mem.c
+++ b/tracecmd/trace-mem.c
@@ -488,7 +488,7 @@ static void do_trace_mem(struct tracecmd_input *handle)
 		die("No records found in file");
 
 	ret = tep_data_type(pevent, record);
-	event = tep_data_event_from_type(pevent, ret);
+	event = tep_find_event(pevent, ret);
 
 	common_type_field = tep_find_common_field(event, "common_type");
 	if (!common_type_field)
diff --git a/tracecmd/trace-record.c b/tracecmd/trace-record.c
index 3034a4b..71a407e 100644
--- a/tracecmd/trace-record.c
+++ b/tracecmd/trace-record.c
@@ -3402,7 +3402,7 @@ find_ts_in_page(struct tep_handle *pevent, void *page, int size)
 			break;
 		free_record(last_record);
 		id = tep_data_type(pevent, record);
-		event = tep_data_event_from_type(pevent, id);
+		event = tep_find_event(pevent, id);
 		if (event) {
 			/* Make sure this is our event */
 			field = tep_find_field(event, "buf");
-- 
2.20.1