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| author | Steven Rostedt (Google) <rostedt@goodmis.org> | 2022-08-05 11:40:36 -0400 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2022-08-05 11:45:10 -0400 |
| commit | 78a74b13d03aeac8449bb178f8d60f931e9c55df (patch) | |
| tree | 532de058897e2742aecfed20575bd7fe187d0d11 | |
| parent | b37903ae5fb53db147519f3e51b28e2647ed8de9 (diff) | |
| download | trace-cmd-78a74b13d03aeac8449bb178f8d60f931e9c55df.tar.gz | |
trace-cmd library: Allow callers to save private data in tracecmd_input handlers
Add a private field for tracecmd_input handle where callers can set it via
tracecmd_set_private() and retrieve it with tracecmd_get_private(). This
will allow a way to find specific information about a handle for users of
tracecmd_iterate_events_multi().
Link: https://lore.kernel.org/linux-trace-devel/20220805154040.2014381-6-rostedt@goodmis.org
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
| -rw-r--r-- | include/trace-cmd/trace-cmd.h | 3 | ||||
| -rw-r--r-- | lib/trace-cmd/trace-input.c | 12 |
2 files changed, 15 insertions, 0 deletions
diff --git a/include/trace-cmd/trace-cmd.h b/include/trace-cmd/trace-cmd.h index 86a34869..e8d72c76 100644 --- a/include/trace-cmd/trace-cmd.h +++ b/include/trace-cmd/trace-cmd.h @@ -48,6 +48,9 @@ int tracecmd_buffer_instances(struct tracecmd_input *handle); const char *tracecmd_buffer_instance_name(struct tracecmd_input *handle, int indx); struct tracecmd_input *tracecmd_buffer_instance_handle(struct tracecmd_input *handle, int indx); +void tracecmd_set_private(struct tracecmd_input *handle, void *data); +void *tracecmd_get_private(struct tracecmd_input *handle); + int tracecmd_iterate_events(struct tracecmd_input *handle, cpu_set_t *cpus, int cpu_size, int (*callback)(struct tracecmd_input *handle, diff --git a/lib/trace-cmd/trace-input.c b/lib/trace-cmd/trace-input.c index 5df10716..a3f17070 100644 --- a/lib/trace-cmd/trace-input.c +++ b/lib/trace-cmd/trace-input.c @@ -215,6 +215,8 @@ struct tracecmd_input { /* For custom profilers. */ tracecmd_show_data_func show_data_func; + + void *private; }; __thread struct tracecmd_input *tracecmd_curr_thread_handle; @@ -245,6 +247,16 @@ enum tracecmd_file_states tracecmd_get_file_state(struct tracecmd_input *handle) return handle->file_state; } +void tracecmd_set_private(struct tracecmd_input *handle, void *data) +{ + handle->private = data; +} + +void *tracecmd_get_private(struct tracecmd_input *handle) +{ + return handle->private; +} + #if DEBUG_RECORD static void remove_record(struct page *page, struct tep_record *record) { |