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https://git.haproxy.org/git/haproxy.git/
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6fd0450b47
With a single process, we don't need to USE_PRIVATE_CACHE, USE_FUTEX nor USE_PTHREAD_PSHARED anymore. Let's only keep the basic spinlock to lock between threads.
77 lines
2.4 KiB
C
77 lines
2.4 KiB
C
/*
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* include/haproxy/shctx.h - shared context management functions for SSL
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*
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* Copyright (C) 2011-2012 EXCELIANCE
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*
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* Author: Emeric Brun - emeric@exceliance.fr
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef __HAPROXY_SHCTX_H
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#define __HAPROXY_SHCTX_H
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#include <haproxy/api.h>
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#include <haproxy/list.h>
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#include <haproxy/shctx-t.h>
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#include <haproxy/thread.h>
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int shctx_init(struct shared_context **orig_shctx,
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int maxblocks, int blocksize, unsigned int maxobjsz,
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int extra, int shared);
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struct shared_block *shctx_row_reserve_hot(struct shared_context *shctx,
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struct shared_block *last, int data_len);
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void shctx_row_inc_hot(struct shared_context *shctx, struct shared_block *first);
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void shctx_row_dec_hot(struct shared_context *shctx, struct shared_block *first);
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int shctx_row_data_append(struct shared_context *shctx,
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struct shared_block *first, struct shared_block *from,
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unsigned char *data, int len);
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int shctx_row_data_get(struct shared_context *shctx, struct shared_block *first,
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unsigned char *dst, int offset, int len);
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/* Lock functions */
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extern int use_shared_mem;
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#define shctx_lock(shctx) if (use_shared_mem) HA_SPIN_LOCK(SHCTX_LOCK, &shctx->lock)
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#define shctx_unlock(shctx) if (use_shared_mem) HA_SPIN_UNLOCK(SHCTX_LOCK, &shctx->lock)
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/* List Macros */
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/*
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* Insert <s> block after <head> which is not necessarily the head of a list,
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* so between <head> and the next element after <head>.
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*/
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static inline void shctx_block_append_hot(struct shared_context *shctx,
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struct list *head,
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struct shared_block *s)
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{
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shctx->nbav--;
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LIST_DELETE(&s->list);
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LIST_INSERT(head, &s->list);
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}
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static inline void shctx_block_set_hot(struct shared_context *shctx,
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struct shared_block *s)
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{
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shctx->nbav--;
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LIST_DELETE(&s->list);
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LIST_APPEND(&shctx->hot, &s->list);
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}
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static inline void shctx_block_set_avail(struct shared_context *shctx,
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struct shared_block *s)
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{
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shctx->nbav++;
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LIST_DELETE(&s->list);
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LIST_APPEND(&shctx->avail, &s->list);
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}
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#endif /* __HAPROXY_SHCTX_H */
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