嵌入式操作系统-实验4-实验报告

信息学部软件学院嵌入式操作系统ADDINCNKISM.UserStyle北京工业大学2022-2023学年第一学期软件学院课程名称嵌入式操作系统报告性质实验四任课教师严海蓉课程性质专业选修课学分2.00学时32

实验4题目：事件标志组的OS_FlagBlock()函数要求：OS_FlagBlock()：暂停任务，直到收到事件标志。代码：OS_Flag.cpp/*=============================*事件标志组的OS_FlagBlock()函数=============================*/#include<iostream>#include<OS_Flag.h>#include"Tasklist.h"#include<OS.h>OS_Flags*OS_FlagsGrp=NULL;/***@brief事件标志组初始化*@returnOS_Flags:返回事件标志组*/OS_Flags*OS_Flagsinit(){OS_FlagsGrp=(OS_Flags*)malloc(sizeof(OS_Flags));OS_FlagsGrp->OS_FlagQty=0;OS_FlagsGrp->Pendlist=NULL;returnOS_FlagsGrp;}/***@brief创建事件标志*@returnOS_Flag:返回事件标志*/OS_Flag*OS_FlagCreate(){OS_Flag*flag=(OS_Flag*)malloc(sizeof(OS_Flag));flag->CurrentTCB=NULL;flag->flag_next=NULL;flag->flag_pre=NULL;returnflag;}/***@brief暂停任务，直到收到事件标志*@paramOS_flag当前事件标志*@paramflags*@paramWait_Type等待模式*@paramCurrentTCB当前任务*@paramOSTCBFreeList空任务表链*@paramOSTCBWaitList任务等待链*@paramOSTCBReadyList任务就绪链*@paramOSTCBPrioTb1任务就绪组*/voidOS_FlagBlock(OS_Flag*OS_flag,charflags,intWait_Type,Node*CurrentTCB,Node**OSTCBFreeList,Node**OSTCBWaitList,Node**OSTCBReadyList,Node*OSTCBPrioTb1[]){OS_flag->CurrentTCB=CurrentTCB;OS_flag->Wait_Type=Wait_Type;OS_flag->flags=flags;OS_FlagsGrp->OS_FlagQty++;OS_flag->flag_next=OS_FlagsGrp->Pendlist;if((OS_FlagsGrp->Pendlist)!=NULL)OS_FlagsGrp->Pendlist->flag_pre=OS_flag;OS_FlagsGrp->Pendlist=OS_flag;OS_Suspend(OSTCBFreeList,OSTCBWaitList,OSTCBReadyList,CurrentTCB,OSTCBPrioTb1);}OS_Flag.h#include<iostream>#include"Tasklist.h"#ifndef_OS_Flags_OS_Flag_#define_OS_Flags_OS_Flag_typedefstructOS_Flag{charflags;//8位Node*CurrentTCB;OS_Flag*flag_next;OS_Flag*flag_pre;intWait_Type;}OS_Flag;typedefstructOS_Flags{OS_Flag*Pendlist;intOS_FlagQty;}OS_Flags;#endifOS_Flags*OS_Flagsinit();OS_Flag*OS_FlagCreate();voidOS_FlagBlock(OS_Flag*OS_flag,charflags,intWait_Type,Node*CurrentTCB,Node**OSTCBFreeList,Node**OSTCBWaitList,Node**OSTCBReadyList,Node*OSTCBPrioTb1[]);main.cpp#include<stdio.h>#include<exception>#include<iostream>#include"Tasklist.h"#include<Task.h>#include<OS.h>#include<mutex>#include<OSRdyTbl.h>#include<OS_Flag.h>usingnamespacestd;Node*OSTCBFreeList=Creat_Tasklist(MAX_TASKLIST_NODE_NUM);Node*OSTCBReadyList=NULL;Node*OSTCBWaitList=NULL;Node*OSTCBPrioTb1[MAX_TASKLIST_NODE_NUM]={NULL};Node*highestpriorNode=NULL;intNode_Insert_Location[MAX_TASKLIST_NODE_NUM]={0};intmain(intargc,char*argv[]){/*===============================================*创建事件标志，暂停任务，直到收到事件标志或发生超时===============================================*/CreatTask(&OSTCBFreeList,&OSTCBReadyList,OSTCBPrioTb1,7);CreatTask(&OSTCBFreeList,&OSTCBReadyList,OSTCBPrioTb1,6);Findhighestprior(&highestpriorNode,OSTCBPrioTb1);//SuspendTask(&OSTCBFreeList,&OSTCBReadyList,OSTCBPrioTb1,highestpriorNode->priority);setCurrentTCB(highestpriorNode);CreatTask(&OSTCBFreeList,&OSTCBReadyList,OSTCBPrioTb1,5);Node*CurrentTCB=getCurrentTCB();DeletelistNodebyAdd(&OSTCBReadyList,CurrentTCB);SuspendTaskPriority(CurrentTCB->priority);OSTCBPrioTb1[CurrentTCB->priority]=NULL;OS_Flags*OS_FlagsGrp=OS_Flagsinit();OS_Flag*flag=OS_FlagCreate();CurrentTCB=getCurrentTCB();O