Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934683AbbDXJtz (ORCPT ); Fri, 24 Apr 2015 05:49:55 -0400 Received: from mail4.hitachi.co.jp ([133.145.228.5]:35239 "EHLO mail4.hitachi.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934291AbbDXJtv (ORCPT ); Fri, 24 Apr 2015 05:49:51 -0400 X-AuditID: 85900ec0-a1ec9b9000003d4c-a5-553a11b30822 Subject: [PATCH perf/core v3 1/8] perf: Improve strfilter to append additional rules From: Masami Hiramatsu To: Arnaldo Carvalho de Melo Cc: Peter Zijlstra , Linux Kernel Mailing List , David Ahern , namhyung@kernel.org, Jiri Olsa , Ingo Molnar Date: Fri, 24 Apr 2015 18:47:44 +0900 Message-ID: <20150424094744.23967.97614.stgit@localhost.localdomain> In-Reply-To: <20150424094741.23967.758.stgit@localhost.localdomain> References: <20150424094741.23967.758.stgit@localhost.localdomain> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: AAAAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3191 Lines: 103 Add strfilter__or/and to append additional rules to existing strfilter. Signed-off-by: Masami Hiramatsu --- tools/perf/util/strfilter.c | 40 ++++++++++++++++++++++++++++++++++++++++ tools/perf/util/strfilter.h | 26 ++++++++++++++++++++++++++ 2 files changed, 66 insertions(+) diff --git a/tools/perf/util/strfilter.c b/tools/perf/util/strfilter.c index 79a757a..f3429cd 100644 --- a/tools/perf/util/strfilter.c +++ b/tools/perf/util/strfilter.c @@ -170,6 +170,46 @@ struct strfilter *strfilter__new(const char *rules, const char **err) return filter; } +static int strfilter__append(struct strfilter *filter, bool _or, + const char *rules, const char **err) +{ + struct strfilter_node *right, *root; + const char *ep = NULL; + + if (!filter || !rules) + return -EINVAL; + + right = strfilter_node__new(rules, &ep); + if (!right || *ep != '\0') { + if (err) + *err = ep; + goto error; + } + root = strfilter_node__alloc(_or ? OP_or : OP_and, filter->root, right); + if (!root) { + ep = NULL; + goto error; + } + + filter->root = root; + return 0; + +error: + strfilter_node__delete(right); + return ep ? -EINVAL : -ENOMEM; +} + +int strfilter__or(struct strfilter *filter, const char *rules, const char **err) +{ + return strfilter__append(filter, true, rules, err); +} + +int strfilter__and(struct strfilter *filter, const char *rules, + const char **err) +{ + return strfilter__append(filter, false, rules, err); +} + static bool strfilter_node__compare(struct strfilter_node *node, const char *str) { diff --git a/tools/perf/util/strfilter.h b/tools/perf/util/strfilter.h index fe611f3..d007cdc 100644 --- a/tools/perf/util/strfilter.h +++ b/tools/perf/util/strfilter.h @@ -29,6 +29,32 @@ struct strfilter { struct strfilter *strfilter__new(const char *rules, const char **err); /** + * strfilter__or - Append an additional rule by logical-or + * @filter: Original string filter + * @rules: Filter rule to be appended at left of the root of + * @filter by using logical-or. + * @err: Pointer which points an error detected on @rules + * + * Parse @rules and join it to the @filter by using logical-or. + * Return 0 if success, or return the error code. + */ +int strfilter__or(struct strfilter *filter, + const char *rules, const char **err); + +/** + * strfilter__add - Append an additional rule by logical-and + * @filter: Original string filter + * @rules: Filter rule to be appended at left of the root of + * @filter by using logical-and. + * @err: Pointer which points an error detected on @rules + * + * Parse @rules and join it to the @filter by using logical-and. + * Return 0 if success, or return the error code. + */ +int strfilter__and(struct strfilter *filter, + const char *rules, const char **err); + +/** * strfilter__compare - compare given string and a string filter * @filter: String filter * @str: target string -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/