Drizzled Public API Documentation

dynamic_array.h

00001 /* - mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
00002  *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
00003  *
00004  *  Copyright (C) 2008 MySQL
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; either version 2 of the License, or
00009  *  (at your option) any later version.
00010  *
00011  *  This program is distributed in the hope that it will be useful,
00012  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  *  GNU General Public License for more details.
00015  *
00016  *  You should have received a copy of the GNU General Public License
00017  *  along with this program; if not, write to the Free Software
00018  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00019  */
00020 
00021 #pragma once
00022 
00023 #include <cstddef>
00024 
00025 namespace drizzled {
00026 
00027 class DYNAMIC_ARRAY
00028 {
00029 public:
00030   unsigned char *buffer;
00031   size_t max_element;
00032   uint32_t alloc_increment;
00033   uint32_t size_of_element;
00034 
00035   void push_back(void*);
00036 
00037   size_t size() const
00038   {
00039     return elements;
00040   }
00041 
00042   void set_size(size_t v)
00043   {
00044     elements = v;
00045   }
00046 private:
00047   size_t elements;
00048 };
00049 
00050 #define my_init_dynamic_array(A,B,C,D) init_dynamic_array2(A,B,NULL,C,D)
00051 #define my_init_dynamic_array_ci(A,B,C,D) init_dynamic_array2(A,B,NULL,C,D)
00052 
00053 bool init_dynamic_array2(DYNAMIC_ARRAY *array,uint32_t element_size,
00054                                    void *init_buffer, uint32_t init_alloc,
00055                                    uint32_t alloc_increment);
00056 unsigned char *alloc_dynamic(DYNAMIC_ARRAY *array);
00057 unsigned char *pop_dynamic(DYNAMIC_ARRAY*);
00058 void delete_dynamic(DYNAMIC_ARRAY *array);
00059 
00060 } /* namespace drizzled */
00061