Messages in this thread Patch in this message | | | From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 74/75] perf ordered_events: Add first_time() method | Date | Thu, 6 Dec 2018 18:26:01 -0300 |
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From: Jiri Olsa <jolsa@kernel.org>
To get the timestamp in the first event in the queue.
Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Dmitry Levin <ldv@altlinux.org> Cc: Eugene Syromiatnikov <esyr@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Luis Cláudio Gonçalves <lclaudio@uudg.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/n/tip-appp27jw1ul8kgg872j43r5o@git.kernel.org [ split from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/util/ordered-events.c | 11 +++++++++++ tools/perf/util/ordered-events.h | 1 + 2 files changed, 12 insertions(+)
diff --git a/tools/perf/util/ordered-events.c b/tools/perf/util/ordered-events.c index 46965643020b..897589507d97 100644 --- a/tools/perf/util/ordered-events.c +++ b/tools/perf/util/ordered-events.c @@ -343,6 +343,17 @@ int ordered_events__flush_time(struct ordered_events *oe, u64 timestamp) return __ordered_events__flush(oe, OE_FLUSH__TIME, timestamp); } +u64 ordered_events__first_time(struct ordered_events *oe) +{ + struct ordered_event *event; + + if (list_empty(&oe->events)) + return 0; + + event = list_first_entry(&oe->events, struct ordered_event, list); + return event->timestamp; +} + void ordered_events__init(struct ordered_events *oe, ordered_events__deliver_t deliver, void *data) { diff --git a/tools/perf/util/ordered-events.h b/tools/perf/util/ordered-events.h index f352af20e167..0920fb0ec6cc 100644 --- a/tools/perf/util/ordered-events.h +++ b/tools/perf/util/ordered-events.h @@ -61,6 +61,7 @@ void ordered_events__init(struct ordered_events *oe, ordered_events__deliver_t d void *data); void ordered_events__free(struct ordered_events *oe); void ordered_events__reinit(struct ordered_events *oe); +u64 ordered_events__first_time(struct ordered_events *oe); static inline void ordered_events__set_alloc_size(struct ordered_events *oe, u64 size) -- 2.19.2
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