rt-thread/components/drivers/include/ipc/poll.h

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/*
* File : poll.h
* This file is part of Device File System in RT-Thread RTOS
* COPYRIGHT (C) 2006-2017, RT-Thread Development Team
*
* This program 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*
* Change Logs:
* Date Author Notes
* 2016-09-19 Heyuanjie The first version.
* 2016-12-26 Bernard Update poll interface
*/
#ifndef IPC_POLL_H__
#define IPC_POLL_H__
#ifdef __cplusplus
extern "C" {
#endif
struct rt_pollreq;
typedef void (*poll_queue_proc)(rt_wqueue_t *, struct rt_pollreq *);
typedef struct rt_pollreq
{
poll_queue_proc _proc;
short _key;
} rt_pollreq_t;
rt_inline void rt_poll_add(rt_wqueue_t *wq, rt_pollreq_t *req)
{
if (req && req->_proc && wq)
{
req->_proc(wq, req);
}
}
#ifdef __cplusplus
}
#endif
#endif