139 lines
4.3 KiB
C
139 lines
4.3 KiB
C
/*
|
|
* nghttp2 - HTTP/2 C Library
|
|
*
|
|
* Copyright (c) 2012 Tatsuhiro Tsujikawa
|
|
*
|
|
* 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 NGHTTP2_MAP_H
|
|
#define NGHTTP2_MAP_H
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif /* HAVE_CONFIG_H */
|
|
|
|
#include <nghttp2/nghttp2.h>
|
|
#include "nghttp2_int.h"
|
|
|
|
/* Implementation of unordered map */
|
|
|
|
typedef uint32_t key_type;
|
|
|
|
typedef struct nghttp2_map_entry {
|
|
struct nghttp2_map_entry *next;
|
|
key_type key;
|
|
} nghttp2_map_entry;
|
|
|
|
typedef struct {
|
|
nghttp2_map_entry **table;
|
|
size_t tablelen;
|
|
size_t size;
|
|
} nghttp2_map;
|
|
|
|
/*
|
|
* Initializes the map |map|.
|
|
*
|
|
* This function returns 0 if it succeeds, or one of the following
|
|
* negative error codes:
|
|
*
|
|
* NGHTTP2_ERR_NOMEM
|
|
* Out of memory
|
|
*/
|
|
int nghttp2_map_init(nghttp2_map *map);
|
|
|
|
/*
|
|
* Deallocates any resources allocated for |map|. The stored entries
|
|
* are not freed by this function. Use nghttp2_map_each_free() to free
|
|
* each entries.
|
|
*/
|
|
void nghttp2_map_free(nghttp2_map *map);
|
|
|
|
/*
|
|
* Deallocates each entries using |func| function and any resources
|
|
* allocated for |map|. The |func| function is responsible for freeing
|
|
* given the |entry| object. The |ptr| will be passed to the |func| as
|
|
* send argument. The return value of the |func| will be ignored.
|
|
*/
|
|
void nghttp2_map_each_free(nghttp2_map *map,
|
|
int (*func)(nghttp2_map_entry *entry, void *ptr),
|
|
void *ptr);
|
|
|
|
/*
|
|
* Initializes the |entry| with the |key|. All entries to be inserted
|
|
* to the map must be initialized with this function.
|
|
*/
|
|
void nghttp2_map_entry_init(nghttp2_map_entry *entry, key_type key);
|
|
|
|
/*
|
|
* Inserts the new |entry| with the key |entry->key| to the map |map|.
|
|
*
|
|
* This function returns 0 if it succeeds, or one of the following
|
|
* negative error codes:
|
|
*
|
|
* NGHTTP2_ERR_INVALID_ARGUMENT
|
|
* The item associated by |key| already exists.
|
|
* NGHTTP2_ERR_NOMEM
|
|
* Out of memory
|
|
*/
|
|
int nghttp2_map_insert(nghttp2_map *map, nghttp2_map_entry *entry);
|
|
|
|
/*
|
|
* Returns the entry associated by the key |key|. If there is no such
|
|
* entry, this function returns NULL.
|
|
*/
|
|
nghttp2_map_entry *nghttp2_map_find(nghttp2_map *map, key_type key);
|
|
|
|
/*
|
|
* Removes the entry associated by the key |key| from the |map|. The
|
|
* removed entry is not freed by this function.
|
|
*
|
|
* This function returns 0 if it succeeds, or one of the following
|
|
* negative error codes:
|
|
*
|
|
* NGHTTP2_ERR_INVALID_ARGUMENT
|
|
* The entry associated by |key| does not exist.
|
|
*/
|
|
int nghttp2_map_remove(nghttp2_map *map, key_type key);
|
|
|
|
/*
|
|
* Returns the number of items stored in the map |map|.
|
|
*/
|
|
size_t nghttp2_map_size(nghttp2_map *map);
|
|
|
|
/*
|
|
* Applies the function |func| to each entry in the |map| with the
|
|
* optional user supplied pointer |ptr|.
|
|
*
|
|
* If the |func| returns 0, this function calls the |func| with the
|
|
* next entry. If the |func| returns nonzero, it will not call the
|
|
* |func| for further entries and return the return value of the
|
|
* |func| immediately. Thus, this function returns 0 if all the
|
|
* invocations of the |func| return 0, or nonzero value which the last
|
|
* invocation of |func| returns.
|
|
*
|
|
* Don't use this function to free each entry. Use
|
|
* nghttp2_map_each_free() instead.
|
|
*/
|
|
int nghttp2_map_each(nghttp2_map *map,
|
|
int (*func)(nghttp2_map_entry *entry, void *ptr),
|
|
void *ptr);
|
|
|
|
#endif /* NGHTTP2_MAP_H */
|