84 lines
3.2 KiB
C
84 lines
3.2 KiB
C
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/**
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* @file NCDStringIndex.h
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* @author Ambroz Bizjak <ambrop7@gmail.com>
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*
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* @section LICENSE
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the author nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef BADVPN_NCD_STRING_INDEX_H
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#define BADVPN_NCD_STRING_INDEX_H
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#include <limits.h>
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#include <misc/debug.h>
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#include <structure/CHash.h>
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#include <base/DebugObject.h>
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#define NCDSTRINGINDEX_INITIAL_CAPACITY 256
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#define NCDSTRINGINDEX_INITIAL_HASH_BUCKETS 256
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typedef int NCD_string_id_t;
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#define NCD_STRING_ID_MAX INT_MAX
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struct NCDStringIndex__entry {
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char *str;
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size_t str_len;
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int has_nulls;
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NCD_string_id_t hash_next;
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};
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typedef struct { const char *str; size_t len; } NCDStringIndex_hash_key;
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typedef struct NCDStringIndex__entry *NCDStringIndex_hash_arg;
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#include "NCDStringIndex_hash.h"
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#include <structure/CHash_decl.h>
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typedef struct {
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struct NCDStringIndex__entry *entries;
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NCD_string_id_t entries_capacity;
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NCD_string_id_t entries_size;
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NCDStringIndex__Hash hash;
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DebugObject d_obj;
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} NCDStringIndex;
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struct NCD_string_request {
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const char *str;
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NCD_string_id_t id;
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};
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int NCDStringIndex_Init (NCDStringIndex *o) WARN_UNUSED;
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void NCDStringIndex_Free (NCDStringIndex *o);
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NCD_string_id_t NCDStringIndex_Lookup (NCDStringIndex *o, const char *str);
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NCD_string_id_t NCDStringIndex_LookupBin (NCDStringIndex *o, const char *str, size_t str_len);
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NCD_string_id_t NCDStringIndex_Get (NCDStringIndex *o, const char *str);
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NCD_string_id_t NCDStringIndex_GetBin (NCDStringIndex *o, const char *str, size_t str_len);
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const char * NCDStringIndex_Value (NCDStringIndex *o, NCD_string_id_t id);
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size_t NCDStringIndex_Length (NCDStringIndex *o, NCD_string_id_t id);
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int NCDStringIndex_HasNulls (NCDStringIndex *o, NCD_string_id_t id);
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int NCDStringIndex_GetRequests (NCDStringIndex *o, struct NCD_string_request *requests) WARN_UNUSED;
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#endif
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