/*
* nghttp2 - HTTP/2 C Library
*
* Copyright (c) 2016 Tatsuhiro Tsujikawa
*
* 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 NGHTTP2_RCBUF_H
#define NGHTTP2_RCBUF_H
#include "nghttp2.h"
struct nghttp2_rcbuf {
/* custom memory allocator belongs to the mem parameter when
creating this object. */
void *mem_user_data;
nghttp2_free free;
/* The pointer to the underlying buffer */
uint8_t *base;
/* Size of buffer pointed by |base|. */
size_t len;
/* Reference count */
int32_t ref;
};
/*
* Allocates nghttp2_rcbuf object with |size| as initial buffer size.
* When the function succeeds, the reference count becomes 1.
*
* This function returns 0 if it succeeds, or one of the following
* negative error codes:
*
* NGHTTP2_ERR_NOMEM:
* Out of memory.
*/
int nghttp2_rcbuf_new(nghttp2_rcbuf **rcbuf_ptr, size_t size, nghttp2_mem *mem);
/*
* Like nghttp2_rcbuf_new(), but initializes the buffer with |src| of
* length |srclen|. This function allocates additional byte at the
* end and puts '\0' into it, so that the resulting buffer could be
* used as NULL-terminated string. Still (*rcbuf_ptr)->len equals to
* |srclen|.
*
* This function returns 0 if it succeeds, or one of the following
* negative error codes:
*
* NGHTTP2_ERR_NOMEM:
* Out of memory.
*/
int nghttp2_rcbuf_new2(nghttp2_rcbuf **rcbuf_ptr, const uint8_t *src,
size_t srclen, nghttp2_mem *mem);
/*
* Frees |rcbuf| itself, regardless of its reference cout.
*/
void nghttp2_rcbuf_del(nghttp2_rcbuf *rcbuf);
#endif /* NGHTTP2_RCBUF_H */