diff options
| author | Tzvetomir Stoyanov <tstoyanov@vmware.com> | 2019-04-01 12:43:08 -0400 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-04-01 15:18:09 -0300 |
| commit | 6699ed712a97f70267e017f509126b890f6f6b28 (patch) | |
| tree | 51121a341e65c4f38001f329a8a8a21a0f889e61 /tools/lib/traceevent/event-parse.h | |
| parent | fed33e905c4beea96a066686f8be2b489eb5068e (diff) | |
tools lib traceevent: Implement a new API, tep_list_events_copy()
Existing API tep_list_events() is not thread safe, it uses the internal
array sort_events to keep cache of the sorted events and reuses it. This
patch implements a new API, tep_list_events_copy(), which allocates new
sorted array each time it is called. It could be used when a sorted
events functionality is needed in thread safe use cases. It is up to the
caller to free the array.
Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/linux-trace-devel/20181218133013.31094-1-tstoyanov@vmware.com
Link: http://lkml.kernel.org/r/20190401164343.117437443@goodmis.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib/traceevent/event-parse.h')
| -rw-r--r-- | tools/lib/traceevent/event-parse.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h index aec48f2aea8a..41159358abc2 100644 --- a/tools/lib/traceevent/event-parse.h +++ b/tools/lib/traceevent/event-parse.h @@ -544,7 +544,10 @@ void tep_event_info(struct trace_seq *s, struct tep_event *event, int tep_strerror(struct tep_handle *pevent, enum tep_errno errnum, char *buf, size_t buflen); -struct tep_event **tep_list_events(struct tep_handle *pevent, enum tep_event_sort_type); +struct tep_event **tep_list_events(struct tep_handle *tep, + enum tep_event_sort_type); +struct tep_event **tep_list_events_copy(struct tep_handle *tep, + enum tep_event_sort_type); struct tep_format_field **tep_event_common_fields(struct tep_event *event); struct tep_format_field **tep_event_fields(struct tep_event *event); |