event-parse: Add retrieval of preempt count and latency flags

Add a way to retrieve the preempt count as well as the latency flags from a
pevent_record.

 int pevent_data_pc(pevent, record);

returns the preempt count of a record.

 int pevent_data_flags(pevent, record);

returns the latency flags for a record.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

2 files changed, 30 insertions, 2 deletions

diff --git a/event-parse.c b/event-parse.c
index 81a2efad..18e93e43 100644
--- a/event-parse.c
+++ b/event-parse.c
@@ -5179,11 +5179,11 @@ struct event_format *pevent_data_event_from_type(struct pevent *pevent, int type
 }
 
 /**
- * pevent_data_pid - parse the PID from raw data
+ * pevent_data_pid - parse the PID from record
  * @pevent: a handle to the pevent
  * @rec: the record to parse
  *
- * This returns the PID from a raw data.
+ * This returns the PID from a record.
  */
 int pevent_data_pid(struct pevent *pevent, struct pevent_record *rec)
 {
@@ -5191,6 +5191,32 @@ int pevent_data_pid(struct pevent *pevent, struct pevent_record *rec)
 }
 
 /**
+ * pevent_data_pc - parse the preempt count from the record
+ * @pevent: a handle to the pevent
+ * @rec: the record to parse
+ *
+ * This returns the preempt count from a record.
+ */
+int pevent_data_pc(struct pevent *pevent, struct pevent_record *rec)
+{
+	return parse_common_pc(pevent, rec->data);
+}
+
+/**
+ * pevent_data_flags - parse the latency flags from the record
+ * @pevent: a handle to the pevent
+ * @rec: the record to parse
+ *
+ * This returns the latency flags from a record.
+ *
+ *  Use trace_flag_type enum for the flags (see event-parse.h).
+ */
+int pevent_data_flags(struct pevent *pevent, struct pevent_record *rec)
+{
+	return parse_common_flags(pevent, rec->data);
+}
+
+/**
  * pevent_data_comm_from_pid - return the command line from PID
  * @pevent: a handle to the pevent
  * @pid: the PID of the task to search for
diff --git a/event-parse.h b/event-parse.h
index 10e35ae1..ea653580 100644
--- a/event-parse.h
+++ b/event-parse.h
@@ -703,6 +703,8 @@ void pevent_data_lat_fmt(struct pevent *pevent,
 int pevent_data_type(struct pevent *pevent, struct pevent_record *rec);
 struct event_format *pevent_data_event_from_type(struct pevent *pevent, int type);
 int pevent_data_pid(struct pevent *pevent, struct pevent_record *rec);
+int pevent_data_pc(struct pevent *pevent, struct pevent_record *rec);
+int pevent_data_flags(struct pevent *pevent, struct pevent_record *rec);
 const char *pevent_data_comm_from_pid(struct pevent *pevent, int pid);
 struct cmdline;
 struct cmdline *pevent_data_pid_from_comm(struct pevent *pevent, const char *comm,