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📄 ck_array.h(3.06 KB)
📄 ck_backoff.h(1.84 KB)
📄 ck_barrier.h(5.31 KB)
📄 ck_bitmap.h(12.25 KB)
📄 ck_brlock.h(6.47 KB)
📄 ck_bytelock.h(5.3 KB)
📄 ck_cc.h(3.68 KB)
📄 ck_cohort.h(5.64 KB)
📄 ck_elide.h(8.74 KB)
📄 ck_epoch.h(7.82 KB)
📄 ck_fifo.h(12.87 KB)
📄 ck_hp.h(3.31 KB)
📄 ck_hp_fifo.h(5.99 KB)
📄 ck_hp_stack.h(3.08 KB)
📄 ck_hs.h(4.46 KB)
📄 ck_ht.h(6.51 KB)
📄 ck_limits.h(1.77 KB)
📄 ck_malloc.h(1.57 KB)
📄 ck_md.h(3.91 KB)
📄 ck_pflock.h(3.68 KB)
📄 ck_pr.h(31.64 KB)
📄 ck_queue.h(15.78 KB)
📄 ck_rhs.h(4.41 KB)
📄 ck_ring.h(16.8 KB)
📄 ck_rwcohort.h(11.17 KB)
📄 ck_rwlock.h(6.15 KB)
📄 ck_sequence.h(3.35 KB)
📄 ck_spinlock.h(2.46 KB)
📄 ck_stack.h(9.03 KB)
📄 ck_stdbool.h(1.42 KB)
📄 ck_stddef.h(1.42 KB)
📄 ck_stdint.h(1.55 KB)
📄 ck_stdlib.h(1.42 KB)
📄 ck_string.h(1.42 KB)
📄 ck_swlock.h(5.09 KB)
📄 ck_tflock.h(3.9 KB)
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📁 spinlock

Editing: ck_hs.h

/*
 * Copyright 2012-2015 Samy Al Bahra.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 CK_HS_H
#define CK_HS_H

#include <ck_cc.h>
#include <ck_malloc.h>
#include <ck_md.h>
#include <ck_pr.h>
#include <ck_stdint.h>
#include <ck_stdbool.h>
#include <ck_stddef.h>

/*
 * Indicates a single-writer many-reader workload. Mutually
 * exclusive with CK_HS_MODE_MPMC
 */
#define CK_HS_MODE_SPMC		1

/*
 * Indicates that values to be stored are not pointers but
 * values. Allows for full precision. Mutually exclusive
 * with CK_HS_MODE_OBJECT.
 */
#define CK_HS_MODE_DIRECT	2

/*
 * Indicates that the values to be stored are pointers.
 * Allows for space optimizations in the presence of pointer
 * packing. Mutually exclusive with CK_HS_MODE_DIRECT.
 */
#define CK_HS_MODE_OBJECT	8

/*
 * Indicates a delete-heavy workload. This will reduce the
 * need for garbage collection at the cost of approximately
 * 12% to 20% increased memory usage.
 */
#define CK_HS_MODE_DELETE	16

/* Currently unsupported. */
#define CK_HS_MODE_MPMC    (void)

/*
 * Hash callback function.
 */
typedef unsigned long ck_hs_hash_cb_t(const void *, unsigned long);

/*
 * Returns pointer to object if objects are equivalent.
 */
typedef bool ck_hs_compare_cb_t(const void *, const void *);

#if defined(CK_MD_POINTER_PACK_ENABLE) && defined(CK_MD_VMA_BITS)
#define CK_HS_PP
#define CK_HS_KEY_MASK ((1U << ((sizeof(void *) * 8) - CK_MD_VMA_BITS)) - 1)
#endif

struct ck_hs_map;
struct ck_hs {
	struct ck_malloc *m;
	struct ck_hs_map *map;
	unsigned int mode;
	unsigned long seed;
	ck_hs_hash_cb_t *hf;
	ck_hs_compare_cb_t *compare;
};
typedef struct ck_hs ck_hs_t;

struct ck_hs_stat {
	unsigned long tombstones;
	unsigned long n_entries;
	unsigned int probe_maximum;
};

struct ck_hs_iterator {
	void **cursor;
	unsigned long offset;
	struct ck_hs_map *map;
};
typedef struct ck_hs_iterator ck_hs_iterator_t;

#define CK_HS_ITERATOR_INITIALIZER { NULL, 0, NULL }

/* Convenience wrapper to table hash function. */
#define CK_HS_HASH(T, F, K) F((K), (T)->seed)

typedef void *ck_hs_apply_fn_t(void *, void *);
bool ck_hs_apply(ck_hs_t *, unsigned long, const void *, ck_hs_apply_fn_t *, void *);
void ck_hs_iterator_init(ck_hs_iterator_t *);
bool ck_hs_next(ck_hs_t *, ck_hs_iterator_t *, void **);
bool ck_hs_next_spmc(ck_hs_t *, ck_hs_iterator_t *, void **);
bool ck_hs_move(ck_hs_t *, ck_hs_t *, ck_hs_hash_cb_t *,
    ck_hs_compare_cb_t *, struct ck_malloc *);
bool ck_hs_init(ck_hs_t *, unsigned int, ck_hs_hash_cb_t *,
    ck_hs_compare_cb_t *, struct ck_malloc *, unsigned long, unsigned long);
void ck_hs_destroy(ck_hs_t *);
void *ck_hs_get(ck_hs_t *, unsigned long, const void *);
bool ck_hs_put(ck_hs_t *, unsigned long, const void *);
bool ck_hs_put_unique(ck_hs_t *, unsigned long, const void *);
bool ck_hs_set(ck_hs_t *, unsigned long, const void *, void **);
bool ck_hs_fas(ck_hs_t *, unsigned long, const void *, void **);
void *ck_hs_remove(ck_hs_t *, unsigned long, const void *);
bool ck_hs_grow(ck_hs_t *, unsigned long);
bool ck_hs_rebuild(ck_hs_t *);
bool ck_hs_gc(ck_hs_t *, unsigned long, unsigned long);
unsigned long ck_hs_count(ck_hs_t *);
bool ck_hs_reset(ck_hs_t *);
bool ck_hs_reset_size(ck_hs_t *, unsigned long);
void ck_hs_stat(ck_hs_t *, struct ck_hs_stat *);

#endif /* CK_HS_H */

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