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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_hp.h

/*
 * Copyright 2010-2015 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_HP_H
#define CK_HP_H

#include <ck_cc.h>
#include <ck_md.h>
#include <ck_pr.h>
#include <ck_stack.h>

#ifndef CK_HP_CACHE
#define CK_HP_CACHE 512
#endif

struct ck_hp_hazard;
typedef void (*ck_hp_destructor_t)(void *);

struct ck_hp {
	ck_stack_t subscribers;
	unsigned int n_subscribers;
	unsigned int n_free;
	unsigned int threshold;
	unsigned int degree;
	ck_hp_destructor_t destroy;
};
typedef struct ck_hp ck_hp_t;

struct ck_hp_hazard {
	void *pointer;
	void *data;
	ck_stack_entry_t pending_entry;
};
typedef struct ck_hp_hazard ck_hp_hazard_t;

enum {
	CK_HP_USED = 0,
	CK_HP_FREE = 1
};

struct ck_hp_record {
	int state;
	void **pointers;
	void *cache[CK_HP_CACHE];
	struct ck_hp *global;
	ck_stack_t pending;
	unsigned int n_pending;
	ck_stack_entry_t global_entry;
	unsigned int n_peak;
	uint64_t n_reclamations;
} CK_CC_CACHELINE;
typedef struct ck_hp_record ck_hp_record_t;

CK_CC_INLINE static void
ck_hp_set(struct ck_hp_record *record, unsigned int i, void *pointer)
{

ck_pr_store_ptr(&record->pointers[i], pointer);
	return;
}

CK_CC_INLINE static void
ck_hp_set_fence(struct ck_hp_record *record, unsigned int i, void *pointer)
{

#ifdef CK_MD_TSO
	ck_pr_fas_ptr(&record->pointers[i], pointer);
#else
	ck_pr_store_ptr(&record->pointers[i], pointer);
	ck_pr_fence_memory();
#endif

return;
}

CK_CC_INLINE static void
ck_hp_clear(struct ck_hp_record *record)
{
	void **pointers = record->pointers;
	unsigned int i;

for (i = 0; i < record->global->degree; i++)
		*pointers++ = NULL;

return;
}

void ck_hp_init(ck_hp_t *, unsigned int, unsigned int, ck_hp_destructor_t);
void ck_hp_set_threshold(ck_hp_t *, unsigned int);
void ck_hp_register(ck_hp_t *, ck_hp_record_t *, void **);
void ck_hp_unregister(ck_hp_record_t *);
ck_hp_record_t *ck_hp_recycle(ck_hp_t *);
void ck_hp_reclaim(ck_hp_record_t *);
void ck_hp_free(ck_hp_record_t *, ck_hp_hazard_t *, void *, void *);
void ck_hp_retire(ck_hp_record_t *, ck_hp_hazard_t *, void *, void *);
void ck_hp_purge(ck_hp_record_t *);

#endif /* CK_HP_H */

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Editing: ck_hp.h

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