From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756409Ab3HLKTi (ORCPT ); Mon, 12 Aug 2013 06:19:38 -0400 Received: from terminus.zytor.com ([198.137.202.10]:47816 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756307Ab3HLKTe (ORCPT ); Mon, 12 Aug 2013 06:19:34 -0400 Date: Mon, 12 Aug 2013 03:18:56 -0700 From: tip-bot for Namhyung Kim Message-ID: Cc: acme@redhat.com, linux-kernel@vger.kernel.org, eranian@google.com, paulus@samba.org, hpa@zytor.com, mingo@kernel.org, andi@firstfloor.org, a.p.zijlstra@chello.nl, namhyung.kim@lge.com, namhyung@kernel.org, jolsa@redhat.com, dsahern@gmail.com, tglx@linutronix.de Reply-To: mingo@kernel.org, hpa@zytor.com, paulus@samba.org, eranian@google.com, linux-kernel@vger.kernel.org, acme@redhat.com, andi@firstfloor.org, a.p.zijlstra@chello.nl, namhyung.kim@lge.com, namhyung@kernel.org, jolsa@redhat.com, dsahern@gmail.com, tglx@linutronix.de In-Reply-To: <1370310629-9642-1-git-send-email-namhyung@kernel.org> References: <1370310629-9642-1-git-send-email-namhyung@kernel.org> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] perf util: Add parse_nsec_time() function Git-Commit-ID: 3b47abe1b5f5446ab41a3a139b6075f46f77f21f 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 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (terminus.zytor.com [127.0.0.1]); Mon, 12 Aug 2013 03:19:04 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 3b47abe1b5f5446ab41a3a139b6075f46f77f21f Gitweb: http://git.kernel.org/tip/3b47abe1b5f5446ab41a3a139b6075f46f77f21f Author: Namhyung Kim AuthorDate: Tue, 4 Jun 2013 10:50:29 +0900 Committer: Arnaldo Carvalho de Melo CommitDate: Wed, 7 Aug 2013 17:35:26 -0300 perf util: Add parse_nsec_time() function The parse_nsec_time() function is for parsing a string of time into 64-bit nsec value. It's a preparation of time filtering in some of perf commands. Signed-off-by: Namhyung Kim Tested-by: David Ahern Acked-by: David Ahern Cc: Andi Kleen Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1370310629-9642-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/util.c | 33 +++++++++++++++++++++++++++++++++ tools/perf/util/util.h | 2 ++ 2 files changed, 35 insertions(+) diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c index 9a06584..6d17b18 100644 --- a/tools/perf/util/util.c +++ b/tools/perf/util/util.c @@ -328,3 +328,36 @@ void put_tracing_file(char *file) { free(file); } + +int parse_nsec_time(const char *str, u64 *ptime) +{ + u64 time_sec, time_nsec; + char *end; + + time_sec = strtoul(str, &end, 10); + if (*end != '.' && *end != '\0') + return -1; + + if (*end == '.') { + int i; + char nsec_buf[10]; + + if (strlen(++end) > 9) + return -1; + + strncpy(nsec_buf, end, 9); + nsec_buf[9] = '\0'; + + /* make it nsec precision */ + for (i = strlen(nsec_buf); i < 9; i++) + nsec_buf[i] = '0'; + + time_nsec = strtoul(nsec_buf, &end, 10); + if (*end != '\0') + return -1; + } else + time_nsec = 0; + + *ptime = time_sec * NSEC_PER_SEC + time_nsec; + return 0; +} diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h index cc1574e..a535359 100644 --- a/tools/perf/util/util.h +++ b/tools/perf/util/util.h @@ -208,6 +208,8 @@ static inline int has_extension(const char *filename, const char *ext) #define NSEC_PER_MSEC 1000000L #endif +int parse_nsec_time(const char *str, u64 *ptime); + extern unsigned char sane_ctype[256]; #define GIT_SPACE 0x01 #define GIT_DIGIT 0x02