From mboxrd@z Thu Jan 1 00:00:00 1970 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 Message-ID: <20181206212602.20474-75-acme@kernel.org> References: <20181206212602.20474-1-acme@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20181206212602.20474-1-acme@kernel.org> Sender: linux-kernel-owner@vger.kernel.org To: Ingo Molnar Cc: Clark Williams , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Jiri Olsa , Adrian Hunter , Alexander Shishkin , Dmitry Levin , Eugene Syromiatnikov , Frederic Weisbecker , =?UTF-8?q?Luis=20Cl=C3=A1udio=20Gon=C3=A7alves?= , Namhyung Kim , Peter Zijlstra , Steven Rostedt , Thomas Gleixner , Arnaldo Carvalho de Melo List-Id: linux-perf-users.vger.kernel.org From: Jiri Olsa To get the timestamp in the first event in the queue. Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Dmitry Levin Cc: Eugene Syromiatnikov Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Luis Cláudio Gonçalves Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Steven Rostedt (VMware) Cc: Thomas Gleixner Link: https://lkml.kernel.org/n/tip-appp27jw1ul8kgg872j43r5o@git.kernel.org [ split from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo --- 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