guththila_buffer.h

00001 
00002 /*
00003  * Licensed to the Apache Software Foundation (ASF) under one or more
00004  * contributor license agreements.  See the NOTICE file distributed with
00005  * this work for additional information regarding copyright ownership.
00006  * The ASF licenses this file to You under the Apache License, Version 2.0
00007  * (the "License"); you may not use this file except in compliance with
00008  * the License.  You may obtain a copy of the License at
00009  *
00010  *      http://www.apache.org/licenses/LICENSE-2.0
00011  *
00012  * Unless required by applicable law or agreed to in writing, software
00013  * distributed under the License is distributed on an "AS IS" BASIS,
00014  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00015  * See the License for the specific language governing permissions and
00016  * limitations under the License.
00017  */
00018 #ifndef GUTHTHILA_BUFFER_H
00019 #define GUTHTHILA_BUFFER_H
00020 
00021 #include <guththila_defines.h>
00022 #include <axutil_utils.h>
00023 
00024 EXTERN_C_START()
00025 
00026 typedef enum guththila_buffer_type
00027 {
00028     GUTHTHILA_SINGLE_BUFFER = 0, /* One buffer */
00029     GUTHTHILA_MULTIPLE_BUFFER    /* Mulitple buffers in a buff array */
00030 } guththila_buffer_type_t;
00031 
00032 typedef struct guththila_buffer_s
00033 {
00034     /* Required to manupulate multiple buffers */
00035     size_t *data_size;                  /* Array containing filled sizes of buffers */
00036     size_t *buffs_size;                 /* Array containing actual sizes of buffers */
00037     guththila_char_t **buff;    /* Array of buffers */
00038     int cur_buff;                               /* Current buffer */
00039     int cur_buff_pos;                   /* Position of the current buffer */
00040     size_t pre_tot_data;                /* All the data in the previous buffers. Not include cur */
00041     unsigned int no_buffers;    /* No of buffers */
00042     short type;                                 /* Buffer type */
00043     guththila_char_t *xml;              /* All the buffers serialized together */
00044 } guththila_buffer_t;
00045 
00046 #define GUTHTHILA_BUFFER_DEF_SIZE 16384
00047 #define GUTHTHILA_BUFFER_DEF_MIN_SIZE 512
00048 #define GUTHTHILA_BUFFER_NUMBER_OF_BUFFERS 16
00049 
00050 #ifndef GUTHTHILA_BUFFER_SIZE
00051 #define GUTHTHILA_BUFFER_SIZE(_buffer) (_buffer.size)
00052 #endif
00053 
00054 #ifndef GUTHTHILA_BUFFER_CURRENT_BUFF
00055 #define GUTHTHILA_BUFFER_CURRENT_BUFF(_buffer) ((_buffer).buff[(_buffer).cur_buff] + (_buffer).data_size[(_buffer).cur_buff])
00056 #endif
00057 
00058 #ifndef GUTHTHILA_BUFFER_CURRENT_BUFF_SIZE
00059 #define GUTHTHILA_BUFFER_CURRENT_BUFF_SIZE(_buffer) ((_buffer).buffs_size[(_buffer).cur_buff] - (_buffer).data_size[(_buffer).cur_buff])
00060 #endif
00061 
00062 #ifndef GUTHTHILA_BUFFER_CURRENT_DATA_SIZE
00063 #define GUTHTHILA_BUFFER_CURRENT_DATA_SIZE(_buffer) ((_buffer).data_size[(_buffer).cur_buff])
00064 #endif
00065 
00066 #ifndef GUTHTHILA_BUFFER_PRE_DATA_SIZE
00067 #define GUTHTHILA_BUFFER_PRE_DATA_SIZE(_buffer) ((_buffer).pre_tot_data)
00068 #endif
00069 
00070 /*We never consider tokens not in the current buffer*/
00071 #ifndef GUTHTHILA_BUF_POS
00072 #define GUTHTHILA_BUF_POS(_buffer, _pos) ((_buffer).buff[(_buffer).cur_buff] + _pos - (_buffer).pre_tot_data)
00073 #endif
00074 
00083 int GUTHTHILA_CALL 
00084 guththila_buffer_init(guththila_buffer_t * buffer,
00085                                           int size,
00086                                           const axutil_env_t * env);
00087 
00095 int GUTHTHILA_CALL 
00096 guththila_buffer_un_init(guththila_buffer_t * buffer,
00097                                            const axutil_env_t * env);
00098 
00109 int GUTHTHILA_CALL 
00110 guththila_buffer_init_for_buffer(guththila_buffer_t * mu_buff, 
00111                                                                  guththila_char_t *buffer, 
00112                                                                  int size, 
00113                                                                  const axutil_env_t * env);
00114 
00115 void *GUTHTHILA_CALL 
00116 guththila_get_position(guththila_buffer_t * buffer,
00117                                            int pos, 
00118                                            const axutil_env_t * env);
00119 
00120 int GUTHTHILA_CALL 
00121 guththila_buffer_next(guththila_buffer_t * buffer, 
00122                                           const axutil_env_t * env);
00123 
00124 
00133 void *GUTHTHILA_CALL 
00134 guththila_buffer_get(guththila_buffer_t * buffer, 
00135                                          const axutil_env_t * env);
00136 
00137 
00138 int GUTHTHILA_CALL 
00139 guththila_buffer_shift(guththila_buffer_t * buffer, 
00140                                            int no, const axutil_env_t * env);
00141 
00142 int GUTHTHILA_CALL 
00143 guththila_buffer_insert_data(guththila_buffer_t * buffer, 
00144                                                          void *buff, size_t buff_len, 
00145                                                          const axutil_env_t * env);
00146 
00147 EXTERN_C_END()
00148 #endif
00149 
00150 
00151 
00152 

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