From patchwork Tue Feb 20 03:58:40 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: fengchengwen X-Patchwork-Id: 136887 X-Patchwork-Delegate: thomas@monjalon.net Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 62ED543AD8; Tue, 20 Feb 2024 05:00:35 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 2B5C24069F; Tue, 20 Feb 2024 05:00:15 +0100 (CET) Received: from szxga05-in.huawei.com (szxga05-in.huawei.com [45.249.212.191]) by mails.dpdk.org (Postfix) with ESMTP id 0DACA40691 for ; Tue, 20 Feb 2024 05:00:12 +0100 (CET) Received: from mail.maildlp.com (unknown [172.19.163.17]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4Tf5CW0ddDz1FL5V; Tue, 20 Feb 2024 11:55:19 +0800 (CST) Received: from dggpeml500024.china.huawei.com (unknown [7.185.36.10]) by mail.maildlp.com (Postfix) with ESMTPS id C11911A0178; Tue, 20 Feb 2024 12:00:05 +0800 (CST) Received: from localhost.localdomain (10.50.165.33) by dggpeml500024.china.huawei.com (7.185.36.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Tue, 20 Feb 2024 12:00:05 +0800 From: Chengwen Feng To: CC: , Subject: [PATCH 4/4] cfgfile: add unique name flag Date: Tue, 20 Feb 2024 03:58:40 +0000 Message-ID: <20240220035840.32978-5-fengchengwen@huawei.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240220035840.32978-1-fengchengwen@huawei.com> References: <20240220035840.32978-1-fengchengwen@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.50.165.33] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpeml500024.china.huawei.com (7.185.36.10) X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org The cfgfile supports duplicate section name and entry name when parsing config file, which may confused and hard to debug when accidentally set duplicate name. So add unique name flag, it will treat as error if encounter duplicate section name or entry name. Cc: stable@dpdk.org Signed-off-by: Chengwen Feng --- lib/cfgfile/rte_cfgfile.c | 32 +++++++++++++++++++++++--------- lib/cfgfile/rte_cfgfile.h | 7 +++++++ 2 files changed, 30 insertions(+), 9 deletions(-) diff --git a/lib/cfgfile/rte_cfgfile.c b/lib/cfgfile/rte_cfgfile.c index ad9314dc14..9e901b0977 100644 --- a/lib/cfgfile/rte_cfgfile.c +++ b/lib/cfgfile/rte_cfgfile.c @@ -102,8 +102,8 @@ _get_section(struct rte_cfgfile *cfg, const char *sectionname) } static int -_add_entry(struct rte_cfgfile_section *section, const char *entryname, - const char *entryvalue) +_add_entry(struct rte_cfgfile *cfg, struct rte_cfgfile_section *section, + const char *entryname, const char *entryvalue, bool check_dup) { int name_len, value_len; @@ -115,6 +115,14 @@ _add_entry(struct rte_cfgfile_section *section, const char *entryname, return -EINVAL; } + if (check_dup) { + if (rte_cfgfile_has_entry(cfg, section->name, entryname) != 0) { + CFG_LOG(ERR, "duplicate entry name %s in section %s", + entryname, section->name); + return -EEXIST; + } + } + /* resize entry structure if we don't have room for more entries */ if (section->num_entries == section->allocated_entries) { struct rte_cfgfile_entry *n_entries = realloc( @@ -264,8 +272,9 @@ rte_cfgfile_load_with_params(const char *filename, int flags, if (cfg->num_sections == 0) goto error1; - ret = _add_entry(&cfg->sections[cfg->num_sections - 1], - split[0], split[1]); + ret = _add_entry(cfg, &cfg->sections[cfg->num_sections - 1], + split[0], split[1], + !!(flags & CFG_FLAG_UNIQUE_NAME)); if (ret != 0) goto error1; } @@ -286,7 +295,8 @@ rte_cfgfile_create(int flags) struct rte_cfgfile *cfg; /* future proof flags usage */ - if (flags & ~(CFG_FLAG_GLOBAL_SECTION | CFG_FLAG_EMPTY_VALUES)) + if (flags & ~(CFG_FLAG_GLOBAL_SECTION | CFG_FLAG_EMPTY_VALUES | + CFG_FLAG_UNIQUE_NAME)) return NULL; cfg = malloc(sizeof(*cfg)); @@ -356,6 +366,13 @@ rte_cfgfile_add_section(struct rte_cfgfile *cfg, const char *sectionname) return -EINVAL; } + if (cfg->flags & CFG_FLAG_UNIQUE_NAME) { + if (rte_cfgfile_has_section(cfg, sectionname) != 0) { + CFG_LOG(ERR, "duplicate section name %s", sectionname); + return -EEXIST; + } + } + /* resize overall struct if we don't have room for more sections */ if (cfg->num_sections == cfg->allocated_sections) { @@ -396,16 +413,13 @@ int rte_cfgfile_add_entry(struct rte_cfgfile *cfg, || (entryvalue == NULL)) return -EINVAL; - if (rte_cfgfile_has_entry(cfg, sectionname, entryname) != 0) - return -EEXIST; - /* search for section pointer by sectionname */ struct rte_cfgfile_section *curr_section = _get_section(cfg, sectionname); if (curr_section == NULL) return -EINVAL; - ret = _add_entry(curr_section, entryname, entryvalue); + ret = _add_entry(cfg, curr_section, entryname, entryvalue, true); return ret; } diff --git a/lib/cfgfile/rte_cfgfile.h b/lib/cfgfile/rte_cfgfile.h index 232c65c77b..74057c1b73 100644 --- a/lib/cfgfile/rte_cfgfile.h +++ b/lib/cfgfile/rte_cfgfile.h @@ -56,6 +56,13 @@ enum { * be zero length (e.g., "key="). */ CFG_FLAG_EMPTY_VALUES = 2, + + /** + * Indicates that file should have unique section name AND unique + * entry's name. If a duplicate name is detected, the operation will + * return error. + */ + CFG_FLAG_UNIQUE_NAME = 4, }; /**@} */