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| author | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2021-06-29 16:55:08 -0400 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2021-07-02 10:09:45 -0400 |
| commit | 69d12fa79f72a497c18ed115171aef99734a7a79 (patch) | |
| tree | babe4dad8b1c1e209d9d64c740dbed97c036ba3a /include | |
| parent | e455276c36818c74e23fa19a570946139e4df0c9 (diff) | |
| download | libtracefs-69d12fa79f72a497c18ed115171aef99734a7a79.tar.gz | |
libtracefs: Implement tracefs_error_last/all()
Add a helper function that will read an instance error_log file, and
either return the entire content of the error log (tracefs_error_all()) or
just the last error (tracefs_error_last()).
Also add tracefs_error_clear() to clear the error log.
Link: https://lore.kernel.org/linux-trace-devel/20210629165508.166371da@oasis.local.home
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/tracefs.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/tracefs.h b/include/tracefs.h index 0484742..da8ad41 100644 --- a/include/tracefs.h +++ b/include/tracefs.h @@ -58,6 +58,10 @@ int tracefs_trace_off_fd(int fd); int tracefs_event_enable(struct tracefs_instance *instance, const char *system, const char *event); int tracefs_event_disable(struct tracefs_instance *instance, const char *system, const char *event); +char *tracefs_error_last(struct tracefs_instance *instance); +char *tracefs_error_all(struct tracefs_instance *instance); +int tracefs_error_clear(struct tracefs_instance *instance); + /** * tracefs_trace_on_get_fd - Get a file descriptor of "tracing_on" in given instance * @instance: ftrace instance, can be NULL for the top instance |