atom.h

avr上的RTOS

/*
 * Copyright (C) 2001-2005 by egnite Software GmbH. 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.
 * 3. Neither the name of the copyright holders nor the names of
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY EGNITE SOFTWARE GMBH 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 EGNITE
 * SOFTWARE GMBH 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.
 *
 * For additional information see http://www.ethernut.de/
 *
 */

/*
 * $Log: atom.h,v $
 * Revision 1.1  2005/05/27 17:41:52  drsung
 * Moved the file.
 *
 * Revision 1.1  2005/05/26 10:08:42  drsung
 * Moved the platform dependend code from include/sys/atom.h to this file.
 *
 *
 */

#ifndef _SYS_ATOM_H_
#error "Do not include this file directly. Use sys/atom.h instead!"
#endif

__BEGIN_DECLS
#include <pthread.h>
#include <signal.h>
#include <sys/thread.h>
#include <stdio.h>
#include <stdlib.h>
extern u_short main_cs_level;
extern sigset_t irq_signal;

extern FILE *__os_trs;
extern u_char __os_trf;

#define AtomicInc(p)     (++(*p))
#define AtomicDec(p)     (--(*p))

#define NutEnterCritical()					     \
		pthread_sigmask(SIG_BLOCK, &irq_signal, 0);  \
		if (runningThread){						 \
			/* if (runningThread->td_cs_level==0)												    \
				printf("Entered a: %s.%d - %s\n", __FILE__, __LINE__, runningThread->td_name); */	\
			runningThread->td_cs_level++;        \
		} else {								 \
			/* if (main_cs_level==0)												\
				printf("Entered b: %s.%d - %s\n", __FILE__, __LINE__, "ROOT") */;	\
			main_cs_level++;					 \
		}										 \

#define NutExitCritical()									\
		if (runningThread){									\
			if (--runningThread->td_cs_level == 0) {		\
				/* printf("Left a: %s.%d - %s\n", __FILE__, __LINE__, runningThread->td_name);	*/ \
				pthread_sigmask(SIG_UNBLOCK, &irq_signal, 0);   \
			}												\
		} else {											\
			if (--main_cs_level == 0) {						\
				/* printf("Left a: %s.%d - %s\n", __FILE__, __LINE__, "ROOT");	*/ \
				pthread_sigmask(SIG_UNBLOCK, &irq_signal, 0);	\
			}												\
		}

#if 0

#define NutEnterCritical()					     \
		if (runningThread){						 \
			if (runningThread->td_cs_level==0)												\
				printf("Entered a: %s.%d - %s\n", __FILE__, __LINE__, runningThread->td_name);	\
			runningThread->td_cs_level++;        \
		} else {								 \
			if (main_cs_level==0)												\
				printf("Entered b: %s.%d - %s\n", __FILE__, __LINE__, "ROOT");	\
			main_cs_level++;					 \
		}										 \

#define NutExitCritical()									\
		if (runningThread){									\
			if (--runningThread->td_cs_level == 0) {		\
				printf("Left a: %s.%d - %s\n", __FILE__, __LINE__, runningThread->td_name);	\
			}												\
		} else {											\
			if (--main_cs_level == 0) {						\
				printf("Left a: %s.%d - %s\n", __FILE__, __LINE__, "ROOT");	\
			}												\
		}
#endif

#define NutJumpOutCritical() NutExitCritical()

__END_DECLS