2009-08-16 13:07:24 +00:00
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/*
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ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file messages.h
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* @brief Messages macros and structures.
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2009-08-30 06:59:43 +00:00
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* @addtogroup messages
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2009-08-16 13:07:24 +00:00
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* @{
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*/
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#ifndef _MESSAGES_H_
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#define _MESSAGES_H_
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#if CH_USE_MESSAGES
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/**
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* Evaluates to TRUE if the thread has pending messages.
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*/
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#define chMsgIsPendingI(tp) \
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((tp)->p_msgqueue.p_next != (Thread *)&(tp)->p_msgqueue)
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/**
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* Returns the first message in the queue.
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*/
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#define chMsgGetI(tp) \
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((tp)->p_msgqueue.p_next->p_msg)
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#ifdef __cplusplus
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extern "C" {
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#endif
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msg_t chMsgSend(Thread *tp, msg_t msg);
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msg_t chMsgWait(void);
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msg_t chMsgGet(void);
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void chMsgRelease(msg_t msg);
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#ifdef __cplusplus
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}
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#endif
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#endif /* CH_USE_MESSAGES */
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#endif /* _MESSAGES_H_ */
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/** @} */
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