2a3fc98c4b
PR-URL: https://github.com/nodejs/node/pull/56258 Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
130 lines
4.0 KiB
C
130 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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* Copyright (c) 2012 nghttp2 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_MAP_H
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#define NGHTTP3_MAP_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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#include "nghttp3_mem.h"
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/* Implementation of unordered map */
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typedef uint64_t nghttp3_map_key_type;
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typedef struct nghttp3_map_bucket {
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uint32_t psl;
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nghttp3_map_key_type key;
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void *data;
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} nghttp3_map_bucket;
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typedef struct nghttp3_map {
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nghttp3_map_bucket *table;
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const nghttp3_mem *mem;
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size_t size;
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size_t hashbits;
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} nghttp3_map;
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/*
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* nghttp3_map_init initializes the map |map|.
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*/
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void nghttp3_map_init(nghttp3_map *map, const nghttp3_mem *mem);
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/*
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* nghttp3_map_free deallocates any resources allocated for |map|.
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* The stored entries are not freed by this function. Use
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* nghttp3_map_each() to free each entry.
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*/
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void nghttp3_map_free(nghttp3_map *map);
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/*
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* nghttp3_map_insert inserts the new |data| with the |key| to the map
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* |map|.
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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_INVALID_ARGUMENT
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* The item associated by |key| already exists.
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* NGHTTP3_ERR_NOMEM
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* Out of memory
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*/
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int nghttp3_map_insert(nghttp3_map *map, nghttp3_map_key_type key, void *data);
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/*
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* nghttp3_map_find returns the entry associated by the key |key|. If
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* there is no such entry, this function returns NULL.
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*/
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void *nghttp3_map_find(const nghttp3_map *map, nghttp3_map_key_type key);
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/*
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* nghttp3_map_remove removes the entry associated by the key |key|
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* from the |map|. The removed entry is not freed by this function.
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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_INVALID_ARGUMENT
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* The entry associated by |key| does not exist.
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*/
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int nghttp3_map_remove(nghttp3_map *map, nghttp3_map_key_type key);
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/*
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* nghttp3_map_clear removes all entries from |map|. The removed
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* entry is not freed by this function.
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*/
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void nghttp3_map_clear(nghttp3_map *map);
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/*
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* nghttp3_map_size returns the number of items stored in the map
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* |map|.
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*/
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size_t nghttp3_map_size(const nghttp3_map *map);
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/*
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* nghttp3_map_each applies the function |func| to each entry in the
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* |map| with the optional user supplied pointer |ptr|.
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*
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* If the |func| returns 0, this function calls the |func| with the
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* next entry. If the |func| returns nonzero, it will not call the
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* |func| for further entries and return the return value of the
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* |func| immediately. Thus, this function returns 0 if all the
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* invocations of the |func| return 0, or nonzero value which the last
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* invocation of |func| returns.
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*/
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int nghttp3_map_each(const nghttp3_map *map, int (*func)(void *data, void *ptr),
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void *ptr);
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#ifndef WIN32
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void nghttp3_map_print_distance(const nghttp3_map *map);
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#endif /* !defined(WIN32) */
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#endif /* !defined(NGHTTP3_MAP_H) */
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