gcexception.c

主要实现将任务异常记录在tffs文件系统中

#include "stdio.h"
#include "gc.h"

#define EXC_MAX_EXCEPTION_NUM 	100
#define EXC_MAX_NAME_LEN				100			

typedef struct 
{
    NW_INT32    	nExcNum;
    NW_CHAR    	szExcList[EXC_MAX_EXCEPTION_NUM][EXC_MAX_NAME_LEN];
}TExcInfo;

static TExcInfo g_tExcInfo = {0};
	
NW_VOID gcExcInit(NW_BOOL bCreate)
{
	memset(&g_tExcInfo,0,sizeof(TExcInfo));
	
    if (bCreate)
    {
        ffsDirectWrite("/tffs0/exception",&g_tExcInfo, 0, sizeof(TExcInfo));
    }
    else		
    {
		ffsMemRead("/tffs0/exception", &g_tExcInfo, 0, sizeof(TExcInfo));
    }	
}

NW_BOOL gcExcAdd(NW_CHAR* szExcName)
{
	NW_INT32 	nExc;
	NW_INT32 	nExcNum 	= 0;
	NW_CHAR* pchName	= NULL; 
	
	if(NULL == szExcName)
	{
		printf("Invalid exception name!\n");
		return FALSE;
	}
	else
	{
		if (strlen(szExcName) >= EXC_MAX_NAME_LEN)
		{
			printf("Too long exception name!\n");
			return FALSE;
		}
	}

	if (OK == ffsMemRead("/tffs0/exception", &g_tExcInfo, 0, sizeof(TExcInfo)))
	{
		if (g_tExcInfo.nExcNum >=  EXC_MAX_EXCEPTION_NUM)
		{	/*override old exceptions*/
			g_tExcInfo.nExcNum = 0;
		}
		
		nExcNum = g_tExcInfo.nExcNum;
		for (nExc =0;nExc < nExcNum; nExc++)
		{
			pchName = g_tExcInfo.szExcList[nExc];
			if (0 == strcmp((const NW_CHAR*)pchName,(const NW_CHAR*)szExcName))
			{
				printf("Same exception!\n");
				return FALSE;
			}
		}

		pchName = g_tExcInfo.szExcList[nExc];
		strcpy(pchName,(const NW_CHAR*)szExcName);
		g_tExcInfo.nExcNum++;

		ffsMemWrite("/tffs0/exception", &g_tExcInfo, 0, sizeof(TExcInfo));
		return TRUE;
	}
	return FALSE;
}

NW_VOID gcExcShow(NW_VOID)
{
	NW_INT32 	nExc;
	NW_INT32 	nExcNum 	= 0;
	NW_CHAR* pchName 			= NULL; 
	
	if (OK == ffsMemRead("/tffs0/exception", &g_tExcInfo, 0, sizeof(TExcInfo)))
	{
		nExcNum = g_tExcInfo.nExcNum;
		for (nExc =0;nExc < nExcNum; nExc++)
		{
			pchName = g_tExcInfo.szExcList[nExc];
			printf("NO.%d:%s\n",nExc,pchName);
		}
	}
}