From patchwork Sat Feb 23 13:46:04 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Goffredo Baroncelli X-Patchwork-Id: 2178391 Return-Path: X-Original-To: patchwork-linux-btrfs@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id 0D5543FE37 for ; Sat, 23 Feb 2013 13:45:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759085Ab3BWNpQ (ORCPT ); Sat, 23 Feb 2013 08:45:16 -0500 Received: from nm19.bullet.mail.ird.yahoo.com ([77.238.189.76]:22504 "HELO nm19.bullet.mail.ird.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1759061Ab3BWNpM (ORCPT ); Sat, 23 Feb 2013 08:45:12 -0500 Received: from [77.238.189.57] by nm19.bullet.mail.ird.yahoo.com with NNFMP; 23 Feb 2013 13:45:10 -0000 Received: from [46.228.39.99] by tm10.bullet.mail.ird.yahoo.com with NNFMP; 23 Feb 2013 13:45:10 -0000 Received: from [127.0.0.1] by smtp136.mail.ir2.yahoo.com with NNFMP; 23 Feb 2013 13:45:10 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1361627110; bh=VLiD/QLdl5xRkBKoPFK9bhy92dApeGsLR0bP86qLjKA=; h=X-Yahoo-Newman-Id:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:From:To:Cc:Subject:Date:Message-Id:X-Mailer:In-Reply-To:References; b=fiY9myRFPB4pxhTf/N2V6lpe5D0Ds7sV7TRzjBX1yM4eGE4Ca2H6pdVPdJimh9ECp+bL+2sArCDEXXc/r+A84f+riMygYZbb1AOvHwAv1sV3gGQhfNj6mz+7P7hcR/2dxmdg67jPn4bRa6prx4RUb+X/mVw7CjoZTVaBACJdHfY= X-Yahoo-Newman-Id: 655463.89777.bm@smtp136.mail.ir2.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: KWs4PJ4VM1nEU97Cwq.uxwv7fhb2GyROglIEZSFbES9MSOH 64B0FmKExPt.6Zal.Ma.OfluhFv5vwFqRuVoz8RbXXo0GQEUoBiHlspyDRgS DTN2JXNkSucV4VjSPR9HlmOhJOJiyOMPfHjBSSO7J2RyyTP1jXjQggdc7KMH Reb0RcgBX0G6xPdrQujyVpW_cfZO52TKIe1bXtSxiqTNseFRzY9wJBuHDJHl jyYQL0vSSMqncfMp.6gImOtj0h0vT31ogOWAd1UHH2wv3rd2rBa2OmWfGITg Ybt.GpJKEExpJOUBdTWaoofjuCyg6PakaI5nNol_efnAONal4i03PyDj62L8 J3pHKLOWrbWvHV7vR.vcCnPLEKmambRgKU6VlyXjPwPELdhRaxv14syGHre3 Du60ZRP5kL.cvZK.u2oJgpwT628yJWIDDiQwVUecgVW8TRtLZTL8Ej.jLxmM sXMoyDGcP0ttwEO5iAjQZ4eo- X-Yahoo-SMTP: ssXiUn.swBDBJsD4bjmtGfj6buOv3E4378JD.MOD2Xo- Received: from venice..bhome (goffredo.baroncelli@95.242.133.103 with login) by smtp136.mail.ir2.yahoo.com with SMTP; 23 Feb 2013 13:45:10 +0000 UTC From: Goffredo Baroncelli To: linux-btrfs@vger.kernel.org Cc: Hugo Mills , Michael =?utf-8?q?Kj=C3=B6rling?= , Martin Steigerwald , cwillu , Chris Murphy , David Sterba , Zach Brown , Goffredo Baroncelli Subject: [PATCH 1/8] Add some helpers to manage the strings allocation/deallocation. Date: Sat, 23 Feb 2013 14:46:04 +0100 Message-Id: <1361627171-8246-2-git-send-email-goffredo.baroncelli@yahoo.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1361627171-8246-1-git-send-email-goffredo.baroncelli@yahoo.com> References: <1361627171-8246-1-git-send-email-goffredo.baroncelli@yahoo.com> Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org From: Goffredo Baroncelli This patch adds some helpers to manage the strings allocation and deallocation. The function string_list_add(char *) adds the passed string to a list; the function string_list_free() frees all the strings together. Signed-off-by: Goffredo Baroncelli --- Makefile | 3 ++- string_list.c | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ string_list.h | 23 +++++++++++++++++++++ 3 files changed, 88 insertions(+), 1 deletion(-) create mode 100644 string_list.c create mode 100644 string_list.h diff --git a/Makefile b/Makefile index 596bf93..0d6c43a 100644 --- a/Makefile +++ b/Makefile @@ -5,7 +5,8 @@ objects = ctree.o disk-io.o radix-tree.o extent-tree.o print-tree.o \ root-tree.o dir-item.o file-item.o inode-item.o \ inode-map.o crc32c.o rbtree.o extent-cache.o extent_io.o \ volumes.o utils.o btrfs-list.o btrfslabel.o repair.o \ - send-stream.o send-utils.o qgroup.o raid6.o + send-stream.o send-utils.o qgroup.o raid6.o \ + string_list.o cmds_objects = cmds-subvolume.o cmds-filesystem.o cmds-device.o cmds-scrub.o \ cmds-inspect.o cmds-balance.o cmds-send.o cmds-receive.o \ cmds-quota.o cmds-qgroup.o cmds-replace.o diff --git a/string_list.c b/string_list.c new file mode 100644 index 0000000..8d8cc1f --- /dev/null +++ b/string_list.c @@ -0,0 +1,63 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public + * License v2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public + * License along with this program; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 021110-1307, USA. + */ + +#include +#include +#include +#include + +/* To store the strings */ +static void **strings_to_free; +static int count_string_to_free; + +/* + * Add a string to the dynamic allocated string list + */ +char *string_list_add(char *s) +{ + int size; + + size = sizeof(void *) * ++count_string_to_free; + strings_to_free = realloc(strings_to_free, size); + + /* if we don't have enough memory, we have more serius + problem than that a wrong handling of not enough memory */ + if (!strings_to_free) { + fprintf(stderr, "add_string_to_free(): Not enough memory\n"); + count_string_to_free = 0; + return NULL; + } + + strings_to_free[count_string_to_free-1] = s; + return s; +} + +/* + * Free the dynamic allocated strings list + */ +void string_list_free() +{ + int i; + for (i = 0 ; i < count_string_to_free ; i++) + free(strings_to_free[i]); + + free(strings_to_free); + + strings_to_free = 0; + count_string_to_free = 0; +} + + diff --git a/string_list.h b/string_list.h new file mode 100644 index 0000000..f974fbc --- /dev/null +++ b/string_list.h @@ -0,0 +1,23 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public + * License v2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public + * License along with this program; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 021110-1307, USA. + */ + +#ifndef STRING_LIST_H +#define STRING_LIST_H + +void string_list_add(char *s); +void string_list_free(); + +#endif