From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 670DBC433FF for ; Tue, 30 Jul 2019 18:42:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3835420693 for ; Tue, 30 Jul 2019 18:42:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=zytor.com header.i=@zytor.com header.b="CyEz86T7" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730336AbfG3Smp (ORCPT ); Tue, 30 Jul 2019 14:42:45 -0400 Received: from terminus.zytor.com ([198.137.202.136]:56271 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726165AbfG3Smo (ORCPT ); Tue, 30 Jul 2019 14:42:44 -0400 Received: from terminus.zytor.com (localhost [127.0.0.1]) by terminus.zytor.com (8.15.2/8.15.2) with ESMTPS id x6UIgVUR3332712 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Tue, 30 Jul 2019 11:42:31 -0700 DKIM-Filter: OpenDKIM Filter v2.11.0 terminus.zytor.com x6UIgVUR3332712 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zytor.com; s=2019071901; t=1564512152; bh=X5gCfAk+g0cp1gr4qLew4B2332f1Yt1iR4j3L3nbSlw=; h=Date:From:Cc:Reply-To:In-Reply-To:References:To:Subject:From; b=CyEz86T7tXAZ9R3USYq+ak7aZ7vKyVdisMIm1HRmiJJ//IYHgtleYO/vgR6PxaDcP hYoK3iAV84jAQ7G3Mv+pp5276OnONf6Q92v4GWsw9xm0KH81t+dtfzG64ddzLnaDvC XDKDD5HkbKqgB7pikF4dTnoKQ+JJBMB9AQPjX2j4ZiyfMIf89XYZrVcRRivv1JYTyT tyA2FyPw+WPpYx5wVmHGdXzhWQjZRBsMcQZS4H+ISH8mxPH+5w9WAWBTJcb9shwDcB wxk7W1R/zVdkddQMS/88bwFw1tOknzP3ZHMtlt1nTM0VdaNClN09kqMaAs1eM61X3p ZhGv7dj00j7EA== Received: (from tipbot@localhost) by terminus.zytor.com (8.15.2/8.15.2/Submit) id x6UIgVr23332709; Tue, 30 Jul 2019 11:42:31 -0700 Date: Tue, 30 Jul 2019 11:42:31 -0700 X-Authentication-Warning: terminus.zytor.com: tipbot set sender to tipbot@zytor.com using -f From: tip-bot for Jiri Olsa Message-ID: Cc: hpa@zytor.com, ak@linux.intel.com, jolsa@kernel.org, acme@redhat.com, peterz@infradead.org, alexey.budankov@linux.intel.com, mingo@kernel.org, alexander.shishkin@linux.intel.com, namhyung@kernel.org, linux-kernel@vger.kernel.org, mpetlan@redhat.com, tglx@linutronix.de Reply-To: acme@redhat.com, peterz@infradead.org, alexey.budankov@linux.intel.com, mingo@kernel.org, alexander.shishkin@linux.intel.com, linux-kernel@vger.kernel.org, namhyung@kernel.org, mpetlan@redhat.com, tglx@linutronix.de, hpa@zytor.com, ak@linux.intel.com, jolsa@kernel.org In-Reply-To: <20190721112506.12306-48-jolsa@kernel.org> References: <20190721112506.12306-48-jolsa@kernel.org> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] libperf: Add perf_evlist__for_each_evsel() iterator Git-Commit-ID: 651bf38ce10a65ef8efb901fc33187127c023e97 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 651bf38ce10a65ef8efb901fc33187127c023e97 Gitweb: https://git.kernel.org/tip/651bf38ce10a65ef8efb901fc33187127c023e97 Author: Jiri Olsa AuthorDate: Sun, 21 Jul 2019 13:24:34 +0200 Committer: Arnaldo Carvalho de Melo CommitDate: Mon, 29 Jul 2019 18:34:45 -0300 libperf: Add perf_evlist__for_each_evsel() iterator Add a perf_evlist__for_each_evsel() macro to iterate perf_evsel objects in evlist. Introduce the perf_evlist__next() function to do that without exposing 'struct perf_evlist' internals. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Alexey Budankov Cc: Andi Kleen Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20190721112506.12306-48-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/lib/evlist.c | 20 ++++++++++++++++++++ tools/perf/lib/include/perf/evlist.h | 7 +++++++ tools/perf/lib/libperf.map | 1 + 3 files changed, 28 insertions(+) diff --git a/tools/perf/lib/evlist.c b/tools/perf/lib/evlist.c index 0517deb4cb1c..979ee423490f 100644 --- a/tools/perf/lib/evlist.c +++ b/tools/perf/lib/evlist.c @@ -34,3 +34,23 @@ struct perf_evlist *perf_evlist__new(void) return evlist; } + +struct perf_evsel * +perf_evlist__next(struct perf_evlist *evlist, struct perf_evsel *prev) +{ + struct perf_evsel *next; + + if (!prev) { + next = list_first_entry(&evlist->entries, + struct perf_evsel, + node); + } else { + next = list_next_entry(prev, node); + } + + /* Empty list is noticed here so don't need checking on entry. */ + if (&next->node == &evlist->entries) + return NULL; + + return next; +} diff --git a/tools/perf/lib/include/perf/evlist.h b/tools/perf/lib/include/perf/evlist.h index 7255a60869a1..5092b622935b 100644 --- a/tools/perf/lib/include/perf/evlist.h +++ b/tools/perf/lib/include/perf/evlist.h @@ -13,5 +13,12 @@ LIBPERF_API void perf_evlist__add(struct perf_evlist *evlist, LIBPERF_API void perf_evlist__remove(struct perf_evlist *evlist, struct perf_evsel *evsel); LIBPERF_API struct perf_evlist *perf_evlist__new(void); +LIBPERF_API struct perf_evsel* perf_evlist__next(struct perf_evlist *evlist, + struct perf_evsel *evsel); + +#define perf_evlist__for_each_evsel(evlist, pos) \ + for ((pos) = perf_evlist__next((evlist), NULL); \ + (pos) != NULL; \ + (pos) = perf_evlist__next((evlist), (pos))) #endif /* __LIBPERF_EVLIST_H */ diff --git a/tools/perf/lib/libperf.map b/tools/perf/lib/libperf.map index e3eac9b60726..c0968226f7b6 100644 --- a/tools/perf/lib/libperf.map +++ b/tools/perf/lib/libperf.map @@ -17,6 +17,7 @@ LIBPERF_0.0.1 { perf_evlist__init; perf_evlist__add; perf_evlist__remove; + perf_evlist__next; local: *; };