/* * Copyright (c) 2014 Kaprica Security, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * */ #ifndef BUFFER_H_ #define BUFFER_H_ #include "cgc_stdint.h" #include "cgc_stdlib.h" typedef struct { uint64_t read_idx; uint64_t write_idx; uint8_t *buffer; cgc_size_t length; } buffer_t; // cgc_read functions int cgc_buffer_read_bit(buffer_t *); unsigned int cgc_buffer_read_bits(buffer_t *, unsigned int count); void cgc_buffer_read_bytes(buffer_t *, uint8_t *, cgc_size_t); // cgc_write functions void cgc_buffer_write_bit(buffer_t *, int value); void cgc_buffer_write_bits(buffer_t *, unsigned int value, unsigned int count); void cgc_buffer_write_bytes(buffer_t *, uint8_t *, cgc_size_t); // misc functions void cgc_buffer_init(buffer_t *, uint8_t *, cgc_size_t); uint64_t cgc_buffer_read_remaining(buffer_t *); uint64_t cgc_buffer_read_tell(buffer_t *); void cgc_buffer_read_seek(buffer_t *, uint64_t); uint64_t cgc_buffer_write_tell(buffer_t *); void cgc_buffer_write_seek(buffer_t *, uint64_t); #endif /* !BUFFER_H_ */