1 /* 2 * Copyright (c) 2007-2014, Lloyd Hilaiel <me@lloyd.io> 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #ifndef __YAJL_BUF_H__ 18 #define __YAJL_BUF_H__ 19 20 #include "yajl_common.h" 21 #include "yajl_alloc.h" 22 23 /* 24 * Implementation/performance notes. If this were moved to a header 25 * only implementation using #define's where possible we might be 26 * able to sqeeze a little performance out of the guy by killing function 27 * call overhead. YMMV. 28 */ 29 30 /** 31 * yajl_buf is a buffer with exponential growth. the buffer ensures that 32 * you are always null padded. 33 */ 34 typedef struct yajl_buf_t * yajl_buf; 35 36 /* allocate a new buffer */ 37 yajl_buf yajl_buf_alloc(yajl_alloc_funcs * alloc); 38 39 /* free the buffer */ 40 void yajl_buf_free(yajl_buf buf); 41 42 /* append a number of bytes to the buffer */ 43 void yajl_buf_append(yajl_buf buf, const void * data, size_t len); 44 45 /* empty the buffer */ 46 void yajl_buf_clear(yajl_buf buf); 47 48 /* get a pointer to the beginning of the buffer */ 49 const unsigned char * yajl_buf_data(yajl_buf buf); 50 51 /* get the length of the buffer */ 52 size_t yajl_buf_len(yajl_buf buf); 53 54 /* truncate the buffer */ 55 void yajl_buf_truncate(yajl_buf buf, size_t len); 56 57 #endif 58