/usr/include/ntirpc/rpc/pool_queue.h is in libntirpc-dev 1.3.1-1.
This file is owned by root:root, with mode 0o644.
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* Copyright (c) 2013-2015 CohortFS, LLC.
* 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 `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 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.
*/
/**
* @file pool_queue.h
* @author William Allen Simpson <bill@cohortfs.com>
* @brief Pthreads-based TAILQ package
*
* @section DESCRIPTION
*
* This provides simple queues using pthreads and TAILQ primitives.
*
* @note Loosely based upon previous wait_queue by
* Matt Benjamin <matt@cohortfs.com>
*/
#ifndef POOL_QUEUE_H
#define POOL_QUEUE_H
#include <pthread.h>
#include <sys/types.h>
#include <misc/queue.h>
struct poolq_entry {
TAILQ_ENTRY(poolq_entry) q; /*** 1st ***/
u_int qsize; /* allocated size of q entry,
* 0: default size */
u_int qflags;
};
struct poolq_head {
TAILQ_HEAD(q_head, poolq_entry) qh;
pthread_mutex_t qmutex;
u_int qsize; /* default size of q entries,
* 0: static size */
int qcount; /* number of entries,
* < 0: has waiting workers. */
};
static inline void
poolq_head_destroy(struct poolq_head *qh)
{
pthread_mutex_destroy(&qh->qmutex);
}
static inline void
poolq_head_setup(struct poolq_head *qh)
{
TAILQ_INIT(&qh->qh);
pthread_mutex_init(&qh->qmutex, NULL);
qh->qcount = 0;
}
#endif /* POOL_QUEUE_H */
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