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author | bnagaev <bnagaev@yandex-team.ru> | 2022-02-10 16:47:04 +0300 |
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committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:47:04 +0300 |
commit | c74559fb88da8adac0d9186cfa55a6b13c47695f (patch) | |
tree | b83306b6e37edeea782e9eed673d89286c4fef35 /contrib/libs/hyperscan/src/util/pqueue.h | |
parent | d6449ba66291ff0c0d352c82e6eb3efb4c8a7e8d (diff) | |
download | ydb-c74559fb88da8adac0d9186cfa55a6b13c47695f.tar.gz |
Restoring authorship annotation for <bnagaev@yandex-team.ru>. Commit 2 of 2.
Diffstat (limited to 'contrib/libs/hyperscan/src/util/pqueue.h')
-rw-r--r-- | contrib/libs/hyperscan/src/util/pqueue.h | 218 |
1 files changed, 109 insertions, 109 deletions
diff --git a/contrib/libs/hyperscan/src/util/pqueue.h b/contrib/libs/hyperscan/src/util/pqueue.h index 8e7055bd76..f0ba12e70f 100644 --- a/contrib/libs/hyperscan/src/util/pqueue.h +++ b/contrib/libs/hyperscan/src/util/pqueue.h @@ -1,109 +1,109 @@ -/* - * Copyright (c) 2015, Intel Corporation - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * * Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of Intel Corporation nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef PQUEUE_H -#define PQUEUE_H - -#include "ue2common.h" - -static really_inline u32 -pq_left(u32 i) { - return (i << 1) + 1; -} - -static really_inline u32 -pq_right(u32 i) { - return (i << 1) + 2; -} - -static really_inline -u32 pq_parent(u32 i) { - return (i - 1) >> 1; -} - -static really_inline -void pq_sift(PQ_T *items, u32 start, u32 end) { - u32 j = start; - PQ_T j_temp = items[j]; - - while (pq_left(j) < end) { - u32 max_child; - - if (pq_right(j) < end && PQ_COMP(items, pq_right(j), pq_left(j))) { - max_child = pq_right(j); - } else { - max_child = pq_left(j); - } - - if (PQ_COMP_B(items, max_child, j_temp)) { - items[j] = items[max_child]; - j = max_child; - } else { - /* j is already less than its children. We know heap property - * is already maintained for children we are done */ - break; - } - } - items[j] = j_temp; -} - -static really_inline -PQ_T *pq_top(PQ_T *items) { - return items; -} - -static really_inline -void pq_pop(PQ_T *items, u32 item_count) { - item_count--; - items[0] = items[item_count]; - pq_sift(items, 0, item_count); -} - -static really_inline -void pq_insert(PQ_T *items, u32 item_count, PQ_T new_item) { - u32 pos = item_count; - while (pos) { - u32 parent = pq_parent(pos); - if (!PQ_COMP_B(items, parent, new_item)) { - items[pos] = items[parent]; - pos = parent; - } else { - break; - } - } - items[pos] = new_item; -} - -static really_inline -void pq_replace_top(PQ_T *items, u32 item_count, PQ_T new_item) { - items[0] = new_item; - pq_sift(items, 0, item_count); -} - -#endif - +/* + * Copyright (c) 2015, Intel Corporation + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Intel Corporation nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef PQUEUE_H +#define PQUEUE_H + +#include "ue2common.h" + +static really_inline u32 +pq_left(u32 i) { + return (i << 1) + 1; +} + +static really_inline u32 +pq_right(u32 i) { + return (i << 1) + 2; +} + +static really_inline +u32 pq_parent(u32 i) { + return (i - 1) >> 1; +} + +static really_inline +void pq_sift(PQ_T *items, u32 start, u32 end) { + u32 j = start; + PQ_T j_temp = items[j]; + + while (pq_left(j) < end) { + u32 max_child; + + if (pq_right(j) < end && PQ_COMP(items, pq_right(j), pq_left(j))) { + max_child = pq_right(j); + } else { + max_child = pq_left(j); + } + + if (PQ_COMP_B(items, max_child, j_temp)) { + items[j] = items[max_child]; + j = max_child; + } else { + /* j is already less than its children. We know heap property + * is already maintained for children we are done */ + break; + } + } + items[j] = j_temp; +} + +static really_inline +PQ_T *pq_top(PQ_T *items) { + return items; +} + +static really_inline +void pq_pop(PQ_T *items, u32 item_count) { + item_count--; + items[0] = items[item_count]; + pq_sift(items, 0, item_count); +} + +static really_inline +void pq_insert(PQ_T *items, u32 item_count, PQ_T new_item) { + u32 pos = item_count; + while (pos) { + u32 parent = pq_parent(pos); + if (!PQ_COMP_B(items, parent, new_item)) { + items[pos] = items[parent]; + pos = parent; + } else { + break; + } + } + items[pos] = new_item; +} + +static really_inline +void pq_replace_top(PQ_T *items, u32 item_count, PQ_T new_item) { + items[0] = new_item; + pq_sift(items, 0, item_count); +} + +#endif + |