[v2,4/7] trace-cmd library: Add new API to get file version of input handler

Commit Message

Tzvetomir Stoyanov (VMware) April 29, 2021, 4:01 a.m. UTC

Added an API to get the version of the trace file, associated with given
input file handler.
  tracecmd_get_file_version()

Signed-off-by: Tzvetomir Stoyanov (VMware) <[e-mail]>
---
 lib/trace-cmd/include/private/trace-cmd-private.h | 2 ++
 lib/trace-cmd/trace-input.c                       | 9 +++++++++
 2 files changed, 11 insertions(+)

Patch

diff --git a/lib/trace-cmd/include/private/trace-cmd-private.h b/lib/trace-cmd/include/private/trace-cmd-private.h
index cbd8dc1f..29e56271 100644
--- a/lib/trace-cmd/include/private/trace-cmd-private.h
+++ b/lib/trace-cmd/include/private/trace-cmd-private.h
@@ -232,6 +232,8 @@  int tracecmd_set_cursor(struct tracecmd_input *handle,
 unsigned long long
 tracecmd_get_cursor(struct tracecmd_input *handle, int cpu);
 
+unsigned long tracecmd_get_file_version(struct tracecmd_input *handle);
+
 int tracecmd_ftrace_overrides(struct tracecmd_input *handle, struct tracecmd_ftrace *finfo);
 bool tracecmd_get_use_trace_clock(struct tracecmd_input *handle);
 tracecmd_show_data_func
diff --git a/lib/trace-cmd/trace-input.c b/lib/trace-cmd/trace-input.c
index a00fa982..b2a03ab8 100644
--- a/lib/trace-cmd/trace-input.c
+++ b/lib/trace-cmd/trace-input.c
@@ -4034,6 +4034,15 @@  struct tep_handle *tracecmd_get_tep(struct tracecmd_input *handle)
 	return handle->pevent;
 }
 
+/**
+ * tracecmd_get_file_version - return the trace.dat file version
+ * @handle: input handle for the trace.dat file
+ */
+unsigned long tracecmd_get_file_version(struct tracecmd_input *handle)
+{
+	return handle->file_version;
+}
+
 /**
  * tracecmd_get_use_trace_clock - return use_trace_clock
  * @handle: input handle for the trace.dat file