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=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 440D6C55ABD for ; Fri, 13 Nov 2020 21:09:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DC97C22255 for ; Fri, 13 Nov 2020 21:09:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726307AbgKMVJU (ORCPT ); Fri, 13 Nov 2020 16:09:20 -0500 Received: from mx2.suse.de ([195.135.220.15]:39770 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726003AbgKMVJT (ORCPT ); Fri, 13 Nov 2020 16:09:19 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id C5F57AD1E; Fri, 13 Nov 2020 21:09:18 +0000 (UTC) From: Daniel Wagner To: Clark Williams , John Kacur Cc: linux-rt-users@vger.kernel.org, Daniel Wagner Subject: [rt-tests v1 1/6] rt-utils: Introduce parse_mem_string() Date: Fri, 13 Nov 2020 22:09:05 +0100 Message-Id: <20201113210910.21807-2-dwagner@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201113210910.21807-1-dwagner@suse.de> References: <20201113210910.21807-1-dwagner@suse.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-rt-users@vger.kernel.org Add helper to parse common memory prefixes on strings. Signed-off-by: Daniel Wagner --- src/include/rt-utils.h | 1 + src/lib/rt-utils.c | 30 ++++++++++++++++++++++++++++++ 2 files changed, 31 insertions(+) diff --git a/src/include/rt-utils.h b/src/include/rt-utils.h index c6fb220cdb0a..39ddbd9eae29 100644 --- a/src/include/rt-utils.h +++ b/src/include/rt-utils.h @@ -28,6 +28,7 @@ uint32_t string_to_policy(const char *str); pid_t gettid(void); int parse_time_string(char *val); +int parse_mem_string(char *str, uint64_t *val); void enable_trace_mark(void); void tracemark(char *fmt, ...) __attribute__((format(printf, 1, 2))); diff --git a/src/lib/rt-utils.c b/src/lib/rt-utils.c index a30e1e4ce436..2d68d62cd875 100644 --- a/src/lib/rt-utils.c +++ b/src/lib/rt-utils.c @@ -362,6 +362,36 @@ int parse_time_string(char *val) return t; } +int parse_mem_string(char *str, uint64_t *val) +{ + char *endptr; + int v = strtol(str, &endptr, 10); + + if (!*endptr) + return v; + + switch (*endptr) { + case 'g': + case 'G': + v *= 1024; + case 'm': + case 'M': + v *= 1024; + case 'k': + case 'K': + v *= 1024; + case 'b': + case 'B': + break; + default: + return -1; + } + + *val = v; + + return 0; +} + static void open_tracemark_fd(void) { char path[MAX_PATH]; -- 2.29.2