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86 lines
3.0 KiB
86 lines
3.0 KiB
/*
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* Copyright 2011 Samy Al Bahra.
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* Copyright 2011 David Joseph.
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* All rights reserved.
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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
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* 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _CK_BARRIER_H
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#define _CK_BARRIER_H
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#include <ck_spinlock.h>
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struct ck_barrier_centralized {
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unsigned int value;
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unsigned int sense;
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};
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typedef struct ck_barrier_centralized ck_barrier_centralized_t;
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struct ck_barrier_centralized_state {
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unsigned int sense;
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};
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typedef struct ck_barrier_centralized_state ck_barrier_centralized_state_t;
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#define CK_BARRIER_CENTRALIZED_INITIALIZER {0, 0}
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#define CK_BARRIER_CENTRALIZED_STATE_INITIALIZER {0}
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void ck_barrier_centralized(ck_barrier_centralized_t *,
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ck_barrier_centralized_state_t *,
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unsigned int);
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struct ck_barrier_combining_group {
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unsigned int k;
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unsigned int count;
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unsigned int sense;
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struct ck_barrier_combining_group *parent;
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struct ck_barrier_combining_group *lchild;
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struct ck_barrier_combining_group *rchild;
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struct ck_barrier_combining_group *next;
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} CK_CC_CACHELINE;
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typedef struct ck_barrier_combining_group ck_barrier_combining_group_t;
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struct ck_barrier_combining_state {
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unsigned int sense;
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};
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typedef struct ck_barrier_combining_state ck_barrier_combining_state_t;
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#define CK_BARRIER_COMBINING_STATE_INITIALIZER {~0}
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struct ck_barrier_combining {
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struct ck_barrier_combining_group *root;
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ck_spinlock_fas_t mutex;
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};
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typedef struct ck_barrier_combining ck_barrier_combining_t;
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void ck_barrier_combining_init(ck_barrier_combining_t *, ck_barrier_combining_group_t *);
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void ck_barrier_combining_group_init(ck_barrier_combining_t *,
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ck_barrier_combining_group_t *,
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unsigned int);
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void ck_barrier_combining(ck_barrier_combining_t *,
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ck_barrier_combining_group_t *,
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ck_barrier_combining_state_t *);
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#endif /* _CK_BARRIER_H */
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