μCOS-II中OS_FLAG.C源码中文注释版

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1、xilentz的网络文摘博客园   首页   新随笔   联系   订阅   管理随笔-204 文章-0 评论-10 trackbacks-0OS_FLAG.C/***********************************************************************************************************                                               uC/OS-II*                         

2、                TheReal-TimeKernel*                                        EVENTFLAG MANAGEMENT**                         (c)Copyright2001-2002,JeanJ.Labrosse,Weston,FL*                                          AllRightsReserved**File:OS_FLAG.C*By  :JeanJ.Labrosse*****

3、*****************************************************************************************************/#ifndef OS_MASTER_FILE#include"INCLUDES.H"#endif#if(OS_VERSION>=251)&&(OS_FLAG_EN>0)&&(OS_MAX_FLAGS>0)/****************************************************************

4、*******************************************                                           LOCALPROTOTYPES                                                   局部定义**********************************************************************************************************/static

5、 void    OS_FlagBlock(OS_FLAG_GRP*pgrp,OS_FLAG_NODE*pnode,OS_FLAGSflags,INT8Uwait_type,INT16Utimeout);static BOOLEAN OS_FlagTaskRdy(OS_FLAG_NODE*pnode,OS_FLAGSflags_rdy);/*$PAGE*//*****************************************************************************************

6、******************                             CHECKTHESTATUSOFFLAGSINANEVENTFLAGGROUP**Description:Thisfunctioniscalledtocheckthestatusofacombinationofbitstobesetorcleared*             inaneventflaggroup. YourapplicationcancheckforANYbittobeset/clearedorALL*          

7、   bitstobeset/cleared.**             Thiscalldoesnotblockifthedesiredflagsarenotpresent.**Arguments :pgrp         isapointertothedesiredeventflaggroup.**             flags        Isabitpatternindicatingwhichbit(s)(i.e.flags)youwishtocheck.*                           T

8、hebitsyouwantarespecifiedbysettingthecorrespondingbitsin*                           'flags'. e.g.ifyourapplicationwan