1 /********************************************************************** 2 * 3 * rttopo - topology library 4 * http://git.osgeo.org/gitea/rttopo/librttopo 5 * 6 * rttopo is free software: you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation, either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * rttopo is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with rttopo. If not, see <http://www.gnu.org/licenses/>. 18 * 19 ********************************************************************** 20 * 21 * Copyright 2015 Nicklas Avén <nicklas.aven@jordogskog.no> 22 * 23 **********************************************************************/ 24 25 26 27 #ifndef _BYTEBUFFER_H 28 #define _BYTEBUFFER_H 1 29 30 #include <stdlib.h> 31 #include <stdarg.h> 32 #include <stdint.h> 33 #include "varint.h" 34 35 #include "rtgeom_log.h" 36 #define BYTEBUFFER_STARTSIZE 128 37 38 typedef struct 39 { 40 size_t capacity; 41 uint8_t *buf_start; 42 uint8_t *writecursor; 43 uint8_t *readcursor; 44 } 45 bytebuffer_t; 46 47 void bytebuffer_init_with_size(const RTCTX *ctx, bytebuffer_t *b, size_t size); 48 bytebuffer_t *bytebuffer_create_with_size(const RTCTX *ctx, size_t size); 49 bytebuffer_t *bytebuffer_create(const RTCTX *ctx); 50 void bytebuffer_destroy(const RTCTX *ctx, bytebuffer_t *s); 51 void bytebuffer_clear(const RTCTX *ctx, bytebuffer_t *s); 52 void bytebuffer_append_byte(const RTCTX *ctx, bytebuffer_t *s, const uint8_t val); 53 void bytebuffer_append_varint(const RTCTX *ctx, bytebuffer_t *s, const int64_t val); 54 void bytebuffer_append_uvarint(const RTCTX *ctx, bytebuffer_t *s, const uint64_t val); 55 uint64_t bytebuffer_read_uvarint(const RTCTX *ctx, bytebuffer_t *s); 56 int64_t bytebuffer_read_varint(const RTCTX *ctx, bytebuffer_t *s); 57 size_t bytebuffer_getlength(const RTCTX *ctx, bytebuffer_t *s); 58 bytebuffer_t* bytebuffer_merge(const RTCTX *ctx, bytebuffer_t **buff_array, int nbuffers); 59 void bytebuffer_reset_reading(const RTCTX *ctx, bytebuffer_t *s); 60 61 void bytebuffer_append_bytebuffer(const RTCTX *ctx, bytebuffer_t *write_to,bytebuffer_t *write_from); 62 void bytebuffer_append_bulk(const RTCTX *ctx, bytebuffer_t *s, void * start, size_t size); 63 void bytebuffer_append_int(const RTCTX *ctx, bytebuffer_t *buf, const int val, int swap); 64 void bytebuffer_append_double(const RTCTX *ctx, bytebuffer_t *buf, const double val, int swap); 65 #endif /* _BYTEBUFFER_H */ 66