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/*
* ngtcp2
*
* 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.
*/
#include "ngtcp2_range.h"
#include "ngtcp2_macro.h"
void ngtcp2_range_init(ngtcp2_range *r, uint64_t begin, uint64_t end) {
r->begin = begin;
r->end = end;
}
ngtcp2_range ngtcp2_range_intersect(const ngtcp2_range *a,
const ngtcp2_range *b) {
ngtcp2_range r = {0, 0};
uint64_t begin = ngtcp2_max_uint64(a->begin, b->begin);
uint64_t end = ngtcp2_min_uint64(a->end, b->end);
if (begin < end) {
ngtcp2_range_init(&r, begin, end);
}
return r;
}
uint64_t ngtcp2_range_len(const ngtcp2_range *r) { return r->end - r->begin; }
int ngtcp2_range_eq(const ngtcp2_range *a, const ngtcp2_range *b) {
return a->begin == b->begin && a->end == b->end;
}
void ngtcp2_range_cut(ngtcp2_range *left, ngtcp2_range *right,
const ngtcp2_range *a, const ngtcp2_range *b) {
/* Assume that b is included in a */
left->begin = a->begin;
left->end = b->begin;
right->begin = b->end;
right->end = a->end;
}
int ngtcp2_range_not_after(const ngtcp2_range *a, const ngtcp2_range *b) {
return a->end <= b->end;
}
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