From f128b07498d22d5bc0cea0270e960b2b7c66248c Mon Sep 17 00:00:00 2001 From: Dimitri Staessens Date: Tue, 23 Feb 2016 00:06:35 +0100 Subject: Initial du_buff code Compiles but untested. Expect bugs. --- include/ouroboros/du_buff.h | 65 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 include/ouroboros/du_buff.h (limited to 'include/ouroboros/du_buff.h') diff --git a/include/ouroboros/du_buff.h b/include/ouroboros/du_buff.h new file mode 100644 index 00000000..1d7b260a --- /dev/null +++ b/include/ouroboros/du_buff.h @@ -0,0 +1,65 @@ +/* + * Ouroboros - Copyright (C) 2016 + * + * Data Unit Buffer + * + * Dimitri Staessens + * Sander Vrijders + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef OUROBOROS_DU_BUFF_H +#define OUROBOROS_DU_BUFF_H + +#include +#include +#include + +#include "list.h" + +/*FIXME: to be defined inside du_buff_t */ + +struct buffer { + uint8_t * data; + size_t size; + struct list_head list; +} buffer; + +typedef struct { + struct buffer * buffer; + size_t size; + size_t du_start; + size_t du_end; + struct list_head list; +} du_buff_t; + +du_buff_t * du_buff_create(size_t size); +void du_buff_destroy(du_buff_t * dub); + +int du_buff_init(du_buff_t * dub, + size_t start, + uint8_t * data, + size_t len); + +uint8_t * du_buff_data_ptr_start(du_buff_t * dub); +uint8_t * du_buff_data_ptr_end(du_buff_t * dub); + +int du_buff_head_alloc(du_buff_t * dub, size_t size); +int du_buff_tail_alloc(du_buff_t * dub, size_t size); +int du_buff_head_release(du_buff_t * dub, size_t size); +int du_buff_tail_release(du_buff_t * dub, size_t size); + +#endif /* OUROBOROS_DU_BUFF_H */ -- cgit v1.2.3