00001 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*- 00002 * vim:expandtab:shiftwidth=2:tabstop=2:smarttab: 00003 * 00004 * Copyright (C) 2008 Sun Microsystems, Inc. 00005 * 00006 * This program is free software; you can redistribute it and/or modify 00007 * it under the terms of the GNU General Public License as published by 00008 * the Free Software Foundation; version 2 of the License. 00009 * 00010 * This program is distributed in the hope that it will be useful, 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 * GNU General Public License for more details. 00014 * 00015 * You should have received a copy of the GNU General Public License 00016 * along with this program; if not, write to the Free Software 00017 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00018 */ 00019 00020 #include <config.h> 00021 00022 #include <drizzled/function/str/alloc_buffer.h> 00023 00024 namespace drizzled 00025 { 00026 00027 String* alloc_buffer(String *res,String *str,String *tmp_value, 00028 ulong length) 00029 { 00030 if (res->alloced_length() < length) 00031 { 00032 if (str->alloced_length() >= length) 00033 { 00034 (void) str->copy(*res); 00035 str->length(length); 00036 return str; 00037 } 00038 if (tmp_value->alloc(length)) 00039 return 0; 00040 (void) tmp_value->copy(*res); 00041 tmp_value->length(length); 00042 return tmp_value; 00043 } 00044 res->length(length); 00045 return res; 00046 } 00047 00048 } /* namespace drizzled */