嵌入式操作系统：设计与实现 源码

//***********************************************************************/ // Author : Garry // Original Date : May,27 2004 // Module Name : shell.cpp // Module Funciton : // This module countains shell procedures. // Last modified Author : // Last modified Date : // Last modified Content : // 1. // 2. // Lines number : //***********************************************************************/ #ifndef __STDAFX_H__ #include "..\INCLUDE\STDAFX.H" #endif #ifndef __KAPI_H__ #include "..\INCLUDE\KAPI.H" #endif #ifndef __IOCTRL_S_H__ #include "..\INCLUDE\IOCTRL_S.H" #endif #ifndef __SYSD_S_H__ #include "..\INCLUDE\SYSD_S.H" #endif #ifndef __RT8139_H__ #include "..\INCLUDE\RT8139.H" #endif #ifndef __EXTCMD_H__ #include "..\EXTCMD.H" #endif // //Global variables. // #define MAX_HOSTNAME_LEN 16 #define VERSION_INFO "Hello China [Version 1.500]" BYTE HostName[MAX_HOSTNAME_LEN] = {0}; //Host name. __TASK_CTRL_BLOCK tcbShell = {0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0xffffffff}; //The shell's task control block. __KTHREAD_CONTROL_BLOCK* g_pShellCtrlBlock = NULL; //The shell's kernal thread control //block pointer. __KERNEL_THREAD_OBJECT* g_lpShellThread = NULL; //The system shell's kernel thread //object. static BYTE CmdBuffer[MAX_BUFFER_LEN] = {0}; //Command buffer. static WORD BufferPtr = 0; //Buffer pointer,points to the first //free byte of the CmdBuffer. // //Global functions. // // //The following function form the command parameter object link from the command //line string. // __CMD_PARA_OBJ* FormParameterObj(LPSTR pszCmd) { __CMD_PARA_OBJ* pObjBuffer = NULL; //Local variables. __CMD_PARA_OBJ* pBasePtr = NULL; __CMD_PARA_OBJ* pTmpObj = NULL; DWORD dwCounter = 0x0000; DWORD index = 0x0000; if(NULL == pszCmd) //Parameter check. return NULL; pObjBuffer = (__CMD_PARA_OBJ*)KMemAlloc(4096,KMEM_SIZE_TYPE_4K); if(NULL == pObjBuffer) goto __TERMINAL; pBasePtr = pObjBuffer; MemZero(pBasePtr,4096); while(*pszCmd) { if(' ' == *pszCmd) { pszCmd ++; continue; } //Filter the space. if(('-' == *pszCmd) || ('/' == *pszCmd)) { pszCmd ++; pObjBuffer->byFunctionLabel = *pszCmd; pszCmd ++; //Skip the function label byte. continue; } else { /*while((' ' != *pszCmd) && *pszCmd) //To find the first parameter. { pszCmd ++; } if(!*pszCmd) break; while(' ' == *pszCmd) //Filter the space. pszCmd ++; if(!*pszCmd) break;*/ index = 0x0000; while(('-' != *pszCmd) && ('/' != *pszCmd) && *pszCmd) { while((' ' != *pszCmd) && (*pszCmd) && (dwCounter <= CMD_PARAMETER_LEN)) { pObjBuffer->Parameter[index][dwCounter] = *pszCmd; pszCmd ++; dwCounter ++; } pObjBuffer->Parameter[index][dwCounter] = 0x00; //Set the terminal flag. index ++; //Ready to copy the next parameter to parameter object. dwCounter = 0; if(!*pszCmd) break; while(' ' != *pszCmd) pszCmd ++; //Skip the no space characters if the parameter's length //is longer than the const CMD_PARAMETER_LEN. while(' ' == *pszCmd) pszCmd ++; //Skip the space character. } pTmpObj = pObjBuffer; //Update the current parameter object. pObjBuffer = (__CMD_PARA_OBJ*)NextParaAddr(pTmpObj,index); pTmpObj->byParameterNum = LOBYTE(LOWORD(index)); if(!*pszCmd) break; pTmpObj->pNext = pObjBuffer; } } __TERMINAL: return pBasePtr; } // //The following routine releases the parameter object created by FormParameterObj routine. // VOID ReleaseParameterObj(__CMD_PARA_OBJ* lpParamObj) { if(NULL == lpParamObj) //Parameter check. return; KMemFree((LPVOID)lpParamObj,KMEM_SIZE_TYPE_4K,4096); //Release the memory. return; } // //Command handler predefinitions. // VOID VerHandler(LPSTR); //Handles the version command. VOID MemHandler(LPSTR); //Handles the memory command. VOID SysInfoHandler(LPSTR); //Handles the sysinfo command. VOID HlpHandler(LPSTR); VOID DateHandler(LPSTR); VOID TimeHandler(LPSTR); VOID CpuHandler(LPSTR); VOID SptHandler(LPSTR); VOID ClsHandler(LPSTR); VOID RunTimeHandler(LPSTR); VOID TestHandler(LPSTR); VOID UnTestHandler(LPSTR); VOID MemViewHandler(LPSTR); VOID SendMsgHandler(LPSTR); VOID KtViewHandler(LPSTR); VOID SysNameHandler(LPSTR); VOID IoCtrlApp(LPSTR); VOID SysDiagApp(LPSTR); #define CMD_OBJ_NUM 18 __CMD_OBJ CmdObj[CMD_OBJ_NUM] = { {"version" , VerHandler}, {"memory" , MemHandler}, {"sysinfo" , SysInfoHandler}, {"sysname" , SysNameHandler}, {"help" , HlpHandler}, {"date" , DateHandler}, {"time" , TimeHandler}, {"cpuinfo" , CpuHandler}, {"support" , SptHandler}, {"runtime" , RunTimeHandler}, {"test" , TestHandler}, {"untest" , UnTestHandler}, {"memview" , MemViewHandler}, {"sendmsg" , SendMsgHandler}, {"ktview" , KtViewHandler}, {"ioctrl" , IoCtrlApp}, {"sysdiag" , SysDiagApp}, {"cls" , ClsHandler} }; // //Global Functions. // VOID HlpHandler(LPSTR) //Command 'help' 's handler. { LPSTR strHelpTitle = " The following command is availiable currently:"; LPSTR strHelpVer = " version : Print out the version information."; LPSTR strHelpMem = " memory : Print out the memory layout."; LPSTR strHelpSysInfo = " sysinfo : Print out the system context."; LPSTR strSysName = " sysname : Change the system host name."; LPSTR strHelpHelp = " help : Print out this screen."; LPSTR strDate = " date : Display or reset system date."; LPSTR strTime = " time : Display or reset system time."; LPSTR strSupport = " support : Print out technical support information."; LPSTR strRunTime = " runtime : Display the total run time since last reboot."; LPSTR strMemView = " memview : View a block memory's content."; LPSTR strSendMsg = " sendmsg : Send a message to a kernal thread."; LPSTR strKtView = " ktview : View all the kernal threads' information."; LPSTR strIoCtrlApp = " ioctrl : Start IO control application."; LPSTR strSysDiagApp = " sysdiag : System or hardware diag application."; LPSTR strCls = " cls : Clear the whole display buffer."; PrintLine(strHelpTitle); //Print out the help information line by line. PrintLine(strHelpVer); PrintLine(strHelpMem); PrintLine(strHelpSysInfo); PrintLine(strSysName); PrintLine(strHelpHelp); PrintLine(strDate); PrintLine(strTime); PrintLine(strSupport); PrintLine(strRunTime); PrintLine(strMemView); PrintLine(strSendMsg); PrintLine(strKtView); PrintLine(strIoCtrlApp); PrintLine(strSysDiagApp); PrintLine(strCls); } // //sysname handler. //This handler changes the system name,and save it to system config database. // static VOID SaveSysName(LPSTR) { } VOID SysNameHandler(LPSTR pszSysName) { __CMD_PARA_OBJ* pCmdObj = NULL; pCmdObj = FormParameterObj(pszSysName);