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| author | Jiri Olsa <jolsa@kernel.org> | 2018-12-06 14:38:52 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-12-17 15:02:17 -0300 |
| commit | 83356b3d124af5ae472ce1358222f6b7749d2322 (patch) | |
| tree | 6e01096df1dd928e0fd26f8e65136b770800de71 | |
| parent | 1f44b3e2fc5d7a2c5f6d1e67c80ebc226d6bd25f (diff) | |
| download | linux-83356b3d124af5ae472ce1358222f6b7749d2322.tar.bz2 | |
perf ordered_events: Add first_time() method
To get the timestamp in the first event in the queue.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
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: 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>
| -rw-r--r-- | tools/perf/util/ordered-events.c | 11 | ||||
| -rw-r--r-- | tools/perf/util/ordered-events.h | 1 |
2 files changed, 12 insertions, 0 deletions
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) |