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/*
* include/haproxy/ring.h
* Exported functions for ring buffers used for disposable data.
*
* Copyright (C) 2000-2019 Willy Tarreau - w@1wt.eu
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, version 2.1
* exclusively.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _HAPROXY_RING_H
#define _HAPROXY_RING_H
#include <stdlib.h>
#include <import/ist.h>
#include <haproxy/ring-t.h>
struct appctx;
struct ring *ring_new(size_t size);
struct ring *ring_make_from_area(void *area, size_t size);
struct ring *ring_cast_from_area(void *area);
void ring_init(struct ring *ring, void* area, size_t size);
struct ring *ring_resize(struct ring *ring, size_t size);
void ring_free(struct ring *ring);
ssize_t ring_write(struct ring *ring, size_t maxlen, const struct ist pfx[], size_t npfx, const struct ist msg[], size_t nmsg);
int ring_attach(struct ring *ring);
void ring_detach_appctx(struct ring *ring, struct appctx *appctx, size_t ofs);
int ring_attach_cli(struct ring *ring, struct appctx *appctx, uint flags);
int cli_io_handler_show_ring(struct appctx *appctx);
void cli_io_release_show_ring(struct appctx *appctx);
size_t ring_max_payload(const struct ring *ring);
#endif /* _HAPROXY_RING_H */
/*
* Local variables:
* c-indent-level: 8
* c-basic-offset: 8
* End:
*/
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