threadpool.h

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/*
 * Copyright (c) 2016, Mathias Brossard <mathias@brossard.org>.
 * 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 COPYRIGHT HOLDERS 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 COPYRIGHT
 * HOLDER 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 _THREADPOOL_H_
#define _THREADPOOL_H_
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define MAX_THREADS 64
#define MAX_QUEUE 65536
 
typedef struct threadpool_t threadpool_t;
 
typedef enum {
    threadpool_invalid        = -1,
    threadpool_lock_failure   = -2,
    threadpool_queue_full     = -3,
    threadpool_shutdown       = -4,
    threadpool_thread_failure = -5
} threadpool_error_t;
 
typedef enum {
    threadpool_graceful       = 1
} threadpool_destroy_flags_t;
 
threadpool_t *threadpool_create(int thread_count, int queue_size, int flags);
 
int threadpool_add(threadpool_t *pool, void (*routine)(void *),
                   void *arg, int flags);
 
int threadpool_destroy(threadpool_t *pool, int flags);
 
#ifdef __cplusplus
}
#endif
 
#endif /* _THREADPOOL_H_ */