Index::Index(std::string Name, std::string tableName, index_t indextype,tindex_t tindextype)
{
this->IndexName=Name;
this->TableName=tableName;
this->IndexType=indextype;
this->tIndexType=tindextype;
this->IndexPrimario="=";
this->typeIndexPrimario=FNULL;
ifstream file(GetFileName(this->IndexName,this->TableName).c_str());
if (file.is_open())
{
file.close();
LoadIndex();
}
else
{
SaveIndex();
}
}
int HDRecordFileReader::DoReadRecordFile()
{
unsigned char buf[RECORD_BUF_LEN] = "";
long filesize = 0;
/*
FILE* fp;
if((fp = ACE_OS::fdopen(_file_handler,"rb")) == NULL)
{
ACE_DEBUG((LM_ERROR,"打开文件流失败!"));
return -1;
}
*/
//if((filesize = ACE_OS::fseek(fp,0L,SEEK_END)) == -1 )
if((filesize = ACE_OS::lseek(_file_handler,0L,SEEK_END)) == -1 )
{
ACE_DEBUG((LM_ERROR,"取得文件大小失败"));
return -1;
}
// 大小为空的文件，要删除
if(filesize == 0)
{
ACE_DEBUG((LM_DEBUG,"空记录文件，自动删除.."));
return 0;
}
// 文件大小不对
if(filesize % RECORD_BUF_LEN != 0)
{
ACE_DEBUG((LM_ERROR,"流水记录文件大小不正确!"));
return -2;
}
size_t reccnt = filesize / sizeof(buf);
size_t index = LoadIndex();
// 认为读取完
if(index >= reccnt)
return 0;
#if 1
if(index > 0)
ACE_DEBUG((LM_DEBUG,"重新分析记录文件index[%d]",index));
#endif
//if(ACE_OS::fseek(fp,sizeof(buf)*index,SEEK_SET) == -1)
if(ACE_OS::lseek(_file_handler,sizeof(buf)*index,SEEK_SET) == -1)
{
ACE_DEBUG((LM_ERROR,"定位记录失败!"));
return -1;
}
size_t readbytes = 0;
size_t bufsize = 0;
do
{
//readbytes = ACE_OS::fread(buf+bufsize,sizeof(buf) - bufsize,1,fp);
readbytes = ACE_OS::read(_file_handler,buf+bufsize,sizeof(buf) - bufsize);
if(readbytes == 0)
{
if(bufsize == sizeof buf)
{
// 一条流水
ACE_DEBUG((LM_DEBUG,"正在处理最后一条记录[%d]...",index));
if(SavePosRecord(buf))
return -1;
SaveIndex(++index);
}
return 0;
}
bufsize += readbytes;
if(bufsize == sizeof buf)
{
// 一条流水
ACE_DEBUG((LM_DEBUG,"正在处理记录[%d]...",index));
if(SavePosRecord(buf))
return -1;
SaveIndex(++index);
bufsize = 0;
}
//KSGThreadUtil::Sleep(1000);
} while(1);
return 0;
}