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43f599b534
Reintroduces the ngtcp2 and nghttp3 dependencies, building those by default if the vendored-in openssl (with QUIC support) is used or the shared openssl defines `OPENSSL_INFO_QUIC`. Upates the version metadata to reflect whether ngtcp2 and nghttp3 are present. ngtcp2 as of2381f7f7b6nghttp3 as of66ad30f0a8Signed-off-by: James M Snell <jasnell@gmail.com> PR-URL: https://github.com/nodejs/node/pull/37682 Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
114 lines
4.0 KiB
C
114 lines
4.0 KiB
C
/*
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* nghttp3
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*
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* Copyright (c) 2019 nghttp3 contributors
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* Copyright (c) 2017 ngtcp2 contributors
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef NGHTTP3_RINGBUF_H
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#define NGHTTP3_RINGBUF_H
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif /* HAVE_CONFIG_H */
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#include <nghttp3/nghttp3.h>
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#include "nghttp3_mem.h"
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typedef struct nghttp3_ringbuf {
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/* buf points to the underlying buffer. */
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uint8_t *buf;
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const nghttp3_mem *mem;
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/* nmemb is the number of elements that can be stored in this ring
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buffer. */
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size_t nmemb;
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/* size is the size of each element. */
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size_t size;
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/* first is the offset to the first element. */
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size_t first;
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/* len is the number of elements actually stored. */
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size_t len;
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} nghttp3_ringbuf;
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/*
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* nghttp3_ringbuf_init initializes |rb|. |nmemb| is the number of
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* elements that can be stored in this buffer. |size| is the size of
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* each element. |size| must be power of 2.
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*
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* This function returns 0 if it succeeds, or one of the following
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* negative error codes:
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*
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* NGHTTP3_ERR_NOMEM
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* Out of memory.
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*/
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int nghttp3_ringbuf_init(nghttp3_ringbuf *rb, size_t nmemb, size_t size,
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const nghttp3_mem *mem);
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/*
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* nghttp3_ringbuf_free frees resources allocated for |rb|. This
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* function does not free the memory pointed by |rb|.
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*/
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void nghttp3_ringbuf_free(nghttp3_ringbuf *rb);
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/* nghttp3_ringbuf_push_front moves the offset to the first element in
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the buffer backward, and returns the pointer to the element.
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Caller can store data to the buffer pointed by the returned
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pointer. If this action exceeds the capacity of the ring buffer,
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the last element is silently overwritten, and rb->len remains
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unchanged. */
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void *nghttp3_ringbuf_push_front(nghttp3_ringbuf *rb);
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/* nghttp3_ringbuf_push_back moves the offset to the last element in
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the buffer forward, and returns the pointer to the element. Caller
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can store data to the buffer pointed by the returned pointer. If
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this action exceeds the capacity of the ring buffer, the first
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element is silently overwritten, and rb->len remains unchanged. */
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void *nghttp3_ringbuf_push_back(nghttp3_ringbuf *rb);
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/*
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* nghttp3_ringbuf_pop_front removes first element in |rb|.
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*/
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void nghttp3_ringbuf_pop_front(nghttp3_ringbuf *rb);
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/*
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* nghttp3_ringbuf_pop_back removes the last element in |rb|.
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*/
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void nghttp3_ringbuf_pop_back(nghttp3_ringbuf *rb);
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/* nghttp3_ringbuf_resize changes the number of elements stored. This
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does not change the capacity of the underlying buffer. */
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void nghttp3_ringbuf_resize(nghttp3_ringbuf *rb, size_t len);
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/* nghttp3_ringbuf_get returns the pointer to the element at
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|offset|. */
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void *nghttp3_ringbuf_get(nghttp3_ringbuf *rb, size_t offset);
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/* nghttp3_ringbuf_len returns the number of elements stored. */
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#define nghttp3_ringbuf_len(RB) ((RB)->len)
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/* nghttp3_ringbuf_full returns nonzero if |rb| is full. */
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int nghttp3_ringbuf_full(nghttp3_ringbuf *rb);
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int nghttp3_ringbuf_reserve(nghttp3_ringbuf *rb, size_t nmemb);
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#endif /* NGHTTP3_RINGBUF_H */
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