mirror of https://github.com/nodejs/node.git
82 lines
2.7 KiB
C
82 lines
2.7 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_RANGE_H
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#define NGHTTP3_RANGE_H
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif /* defined(HAVE_CONFIG_H) */
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#include <nghttp3/nghttp3.h>
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/*
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* nghttp3_range represents half-closed range [begin, end).
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*/
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typedef struct nghttp3_range {
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uint64_t begin;
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uint64_t end;
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} nghttp3_range;
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/*
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* nghttp3_range_init initializes |r| with the range [|begin|, |end|).
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*/
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void nghttp3_range_init(nghttp3_range *r, uint64_t begin, uint64_t end);
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/*
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* nghttp3_range_intersect returns the intersection of |a| and |b|.
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* If they do not overlap, it returns empty range.
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*/
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nghttp3_range nghttp3_range_intersect(const nghttp3_range *a,
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const nghttp3_range *b);
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/*
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* nghttp3_range_len returns the length of |r|.
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*/
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uint64_t nghttp3_range_len(const nghttp3_range *r);
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/*
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* nghttp3_range_eq returns nonzero if |a| equals |b|, such that
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* a->begin == b->begin and a->end == b->end hold.
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*/
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int nghttp3_range_eq(const nghttp3_range *a, const nghttp3_range *b);
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/*
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* nghttp3_range_cut returns the left and right range after removing
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* |b| from |a|. This function assumes that |a| completely includes
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* |b|. In other words, a->begin <= b->begin and b->end <= a->end
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* hold.
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*/
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void nghttp3_range_cut(nghttp3_range *left, nghttp3_range *right,
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const nghttp3_range *a, const nghttp3_range *b);
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/*
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* nghttp3_range_not_after returns nonzero if the right edge of |a|
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* does not go beyond of the right edge of |b|.
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*/
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int nghttp3_range_not_after(const nghttp3_range *a, const nghttp3_range *b);
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#endif /* !defined(NGHTTP3_RANGE_H) */
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