@@ -236,6 +236,8 @@ unsigned long long
tracecmd_get_cursor(struct tracecmd_input *handle, int cpu);
unsigned long tracecmd_get_file_version(struct tracecmd_input *handle);
+int tracecmd_get_file_compress_proto(struct tracecmd_input *handle,
+ const char **name, const char **version);
int tracecmd_ftrace_overrides(struct tracecmd_input *handle, struct tracecmd_ftrace *finfo);
bool tracecmd_get_use_trace_clock(struct tracecmd_input *handle);
@@ -4150,6 +4150,22 @@ unsigned long tracecmd_get_file_version(struct tracecmd_input *handle)
return handle->file_version;
}
+/**
+ * tracecmd_get_file_compress_proto - get name and version of compression algorithm,
+ * used to compress the trace file
+ * @handle: input handle for the trace.dat file
+ * @name: return, name of the compression algorithm.
+ * @version: return, version of the compression algorithm.
+ *
+ * Returns 0 on success, or -1 in case of an error. If 0 is returned, the name and version of the
+ * algorithm are stored in @name and @version. The returned strings must *not* be freed.
+ */
+int tracecmd_get_file_compress_proto(struct tracecmd_input *handle,
+ const char **name, const char **version)
+{
+ return tracecmd_compress_proto_get_name(handle->compress, name, version);
+}
+
/**
* tracecmd_get_use_trace_clock - return use_trace_clock
* @handle: input handle for the trace.dat file
The new API returns name and version of the compression algorithm, used to compress the trace file associated with given input file handler: tracecmd_get_file_compress_proto() Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com> --- .../include/private/trace-cmd-private.h | 2 ++ lib/trace-cmd/trace-input.c | 16 ++++++++++++++++ 2 files changed, 18 insertions(+)