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nghttp2_rcbuf.h
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/* * 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 */