From 328ad0a41c6bdf596224ff2e9ab9c0fabde8634d Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 09:32:08 +0200 Subject: Adding upstream version 0.8.0. Signed-off-by: Daniel Baumann --- lib/nghttp3_range.h | 81 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 lib/nghttp3_range.h (limited to 'lib/nghttp3_range.h') diff --git a/lib/nghttp3_range.h b/lib/nghttp3_range.h new file mode 100644 index 0000000..20dab69 --- /dev/null +++ b/lib/nghttp3_range.h @@ -0,0 +1,81 @@ +/* + * nghttp3 + * + * Copyright (c) 2019 nghttp3 contributors + * Copyright (c) 2017 ngtcp2 contributors + * + * 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 NGHTTP3_RANGE_H +#define NGHTTP3_RANGE_H + +#ifdef HAVE_CONFIG_H +# include +#endif /* HAVE_CONFIG_H */ + +#include + +/* + * nghttp3_range represents half-closed range [begin, end). + */ +typedef struct nghttp3_range { + uint64_t begin; + uint64_t end; +} nghttp3_range; + +/* + * nghttp3_range_init initializes |r| with the range [|begin|, |end|). + */ +void nghttp3_range_init(nghttp3_range *r, uint64_t begin, uint64_t end); + +/* + * nghttp3_range_intersect returns the intersection of |a| and |b|. + * If they do not overlap, it returns empty range. + */ +nghttp3_range nghttp3_range_intersect(const nghttp3_range *a, + const nghttp3_range *b); + +/* + * nghttp3_range_len returns the length of |r|. + */ +uint64_t nghttp3_range_len(const nghttp3_range *r); + +/* + * nghttp3_range_eq returns nonzero if |a| equals |b|, such that + * a->begin == b->begin, and a->end == b->end hold. + */ +int nghttp3_range_eq(const nghttp3_range *a, const nghttp3_range *b); + +/* + * nghttp3_range_cut returns the left and right range after removing + * |b| from |a|. This function assumes that |a| completely includes + * |b|. In other words, a->begin <= b->begin and b->end <= a->end + * hold. + */ +void nghttp3_range_cut(nghttp3_range *left, nghttp3_range *right, + const nghttp3_range *a, const nghttp3_range *b); + +/* + * nghttp3_range_not_after returns nonzero if the right edge of |a| + * does not go beyond of the right edge of |b|. + */ +int nghttp3_range_not_after(const nghttp3_range *a, const nghttp3_range *b); + +#endif /* NGHTTP3_RANGE_H */ -- cgit v1.2.3