msrh_top.c

Hyper Operating System。基于ITRON接口的实时操作系统。主页： https://sourceforge.jp/projects/hos

/* ------------------------------------------------------------------------ */
/*  Hyper Operating System V4  μITRON4.0慌屯 Real-Time OS                  */
/*    μカ〖ネル タスク扩告                                                 */
/*                                                                          */
/*                                  Copyright (C) 1998-2002 by Project HOS  */
/*                                  http://sourceforge.jp/projects/hos/     */
/* ------------------------------------------------------------------------ */


#include "mknl.h"



/* レディ〖キュ〖黎片のタスクを玫す */
T_MKNL_TCB* mknl_srh_top(void)
{
	T_MKNL_TCB *mtcb;
	T_MKNL_TCB *mtcb_head;
	INT i;

	/* 呵光庭黎刨の悸乖材墙タスクを玫す */
	for ( i = 0; i < mknl_rdq_cnt; i++ )	/* 庭黎刨の光いキュ〖から界に浮瑚 */
	{
		if ( mknl_rdq_tbl[i].head != NULL )
		{
			/* 动扩略ち觉轮で痰い黎片タスクを玫す */
			mtcb_head = mknl_rdq_tbl[i].head;
			mtcb      = mtcb_head;
			do
			{
				if ( !(mtcb->tskstat & TTS_SUS) )
				{
					return mtcb;	/* 斧つけたタスクを手す */
				}
				mtcb = mtcb->next;
			} while ( mtcb != mtcb_head);
		}
	}

	return NULL;	/* 悸乖材墙タスク痰し */
}


/* ------------------------------------------------------------------------ */
/*  Copyright (C) 1998-2002 by Project HOS                                  */
/* ------------------------------------------------------------------------ */