cxsminit.c

来自「CMEX source code RTOS for atmel atmega12」· C语言 代码 · 共 34 行

/*********************************************************

Copyright (c) CMX Company. 1999. All rights reserved

*********************************************************/
/* version 5.30 */

#define CMXMODULE 1

#include <cxfuncs.h>	/* get cmx include header file */
#include <cxextern.h>	/* get cmx include header file */

#ifdef CMXTRACKER
#include <cmxtrack.h>	/* get cmx include header file */
#endif

byte K_Semaphore_Create(byte sem_num, word16 n)	
{
	SEM *sem_ptr;

	if (sem_num >= MAX_SEMAPHORES)
		{
		return(K_ERROR);	/* return good status to caller */
		}
	K_I_Disable_Sched();
	sem_ptr = &sem_array[sem_num];	/* CMX semaphore handler. */
	sem_ptr->fwlink = (tcbpointer)sem_ptr;
	sem_ptr->bwlink = (tcbpointer)sem_ptr;
	sem_ptr->sem_n = sem_ptr->sem_count = n;
	K_I_Func_Return();	/* release task block */
	return(K_OK);	/* return good status to caller */
}