hash.h

Go to the documentation of this file.

// Copyright (C) 2004-2021 Artifex Software, Inc.
//
// This file is part of MuPDF.
//
// MuPDF is free software: you can redistribute it and/or modify it under the
// terms of the GNU Affero General Public License as published by the Free
// Software Foundation, either version 3 of the License, or (at your option)
// any later version.
//
// MuPDF is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
// details.
//
// You should have received a copy of the GNU Affero General Public License
// along with MuPDF. If not, see <https://www.gnu.org/licenses/agpl-3.0.en.html>
//
// Alternative licensing terms are available from the licensor.
// For commercial licensing, see <https://www.artifex.com/> or contact
// Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
// CA 94129, USA, for further information.
 
#ifndef MUPDF_FITZ_HASH_H
#define MUPDF_FITZ_HASH_H
 
#include "mupdf/fitz/system.h"
#include "mupdf/fitz/context.h"
#include "mupdf/fitz/output.h"
 
#define FZ_HASH_TABLE_KEY_LENGTH 48

 
typedef struct fz_hash_table fz_hash_table;

typedef void (fz_hash_table_drop_fn)(fz_context *ctx, void *val);

fz_hash_table *fz_new_hash_table(fz_context *ctx, int initialsize, int keylen, int lock, fz_hash_table_drop_fn *drop_val);

void fz_drop_hash_table(fz_context *ctx, fz_hash_table *table);

void *fz_hash_find(fz_context *ctx, fz_hash_table *table, const void *key);

void *fz_hash_insert(fz_context *ctx, fz_hash_table *table, const void *key, void *val);

void fz_hash_remove(fz_context *ctx, fz_hash_table *table, const void *key);

typedef void (fz_hash_table_for_each_fn)(fz_context *ctx, void *state, void *key, int keylen, void *val);

void fz_hash_for_each(fz_context *ctx, fz_hash_table *table, void *state, fz_hash_table_for_each_fn *callback);

typedef int (fz_hash_table_filter_fn)(fz_context *ctx, void *state, void *key, int keylen, void *val);

void fz_hash_filter(fz_context *ctx, fz_hash_table *table, void *state, fz_hash_table_filter_fn *callback);
 
#endif