OSS_INLINE INT32 _utilCommObjBuff::nextObj( BSONObj &obj )
{
INT32 rc = SDB_OK ;
if ( eof() )
{
rc = SDB_DMS_EOC ;
goto error ;
}
try
{
BSONObj objTemp( &_buff[_readPos] ) ;
obj = objTemp ;
_readPos += ossAlign4( (UINT32)obj.objsize() ) ;
}
catch ( std::exception &e )
{
PD_LOG( PDERROR, "Failed to create bson object: %s", e.what() ) ;
rc = SDB_SYS ;
goto error ;
return SDB_SYS ;
}
done:
return rc ;
error:
goto done ;
}
INT32 _rtnObjBuff::truncate( UINT32 num )
{
INT32 rc = SDB_OK ;
INT32 offset = 0 ;
INT32 recordNum = 0 ;
if ( num >= (UINT32)_recordNum )
{
goto done ;
}
while( ossAlign4( (UINT32)offset ) < (UINT32)_buffSize &&
(UINT32)recordNum < num )
{
offset = ossAlign4( (UINT32)offset ) ;
try
{
BSONObj objTemp( &_pBuff[_curOffset] ) ;
offset += objTemp.objsize() ;
++recordNum ;
}
catch( std::exception &e )
{
PD_LOG( PDERROR, "Failed to create bson object: %s", e.what() ) ;
rc = SDB_SYS ;
goto error ;
}
}
if ( offset < _buffSize )
{
_buffSize = offset ;
}
if ( recordNum < _recordNum )
{
_recordNum = recordNum ;
}
done:
return rc ;
error:
goto done ;
}
