/*
 * This file is distributed as part of the MariaDB Corporation MaxScale.  It is free
 * software: you can redistribute it and/or modify it under the terms of the
 * GNU General Public License as published by the Free Software Foundation,
 * version 2.
 *
 * This program 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 General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Copyright MariaDB Corporation Ab 2013-2014
 */
#include <thread.h>
#include <pthread.h>
/**
 * @file thread.c  - Implementation of thread related operations
 *
 * @verbatim
 * Revision History
 *
 * Date		Who		Description
 * 25/06/13	Mark Riddoch	Initial implementation
 *
 * @endverbatim
 */


/**
 * Start a polling thread
 *
 * @param entry		The entry point to call
 * @param arg		The argument to pass the thread entry point
 * @return	The thread handle
 */
void *
thread_start(void (*entry)(void *), void *arg)
{
pthread_t	thd;

	if (pthread_create(&thd, NULL, (void *(*)(void *))entry, arg) != 0)
	{
		return NULL;
	}
	return (void *)thd;
}

/**
 * Wait for a running threads to complete.
 *
 * @param thd	The thread handle
 */
void
thread_wait(void *thd)
{
void	*rval;

	pthread_join((pthread_t)thd, &rval);
}

/**
 * Put the thread to sleep for a number of milliseconds
 *
 * @param ms	Number of milliseconds to sleep
 */
void
thread_millisleep(int ms)
{
struct timespec req;

	req.tv_sec = ms / 1000;
	req.tv_nsec = (ms % 1000) * 1000000;
	nanosleep(&req, NULL);
}