void FArchiveFileReaderWindows::Serialize( void* V, INT Length )
{
while( Length>0 )
{
INT Copy = Min( Length, BufferBase+BufferCount-Pos );
if( Copy<=0 )
{
if( Length >= ARRAY_COUNT(Buffer) )
{
INT Count=0;
// Read data from device via Win32 ReadFile API.
{
SCOPED_FILE_IO_READ_STATS( StatsHandle, Length, Pos );
ReadFile( Handle, V, Length, (DWORD*)&Count, NULL );
}
if( Count!=Length )
{
ArIsError = 1;
Error->Logf( TEXT("ReadFile failed: Count=%i Length=%i Error=%s for file %s"),
Count, Length, appGetSystemErrorMessage(), *Filename );
}
Pos += Length;
BufferBase += Length;
return;
}
InternalPrecache( Pos, MAXINT );
Copy = Min( Length, BufferBase+BufferCount-Pos );
if( Copy<=0 )
{
ArIsError = 1;
Error->Logf( TEXT("ReadFile beyond EOF %i+%i/%i for file %s"),
Pos, Length, Size, *Filename );
}
if( ArIsError )
{
return;
}
}
appMemcpy( V, Buffer+Pos-BufferBase, Copy );
Pos += Copy;
Length -= Copy;
V = (BYTE*)V + Copy;
}
}
void FArchiveFileReaderGeneric::Serialize( void* V, int64 Length )
{
while( Length>0 )
{
int64 Copy = FMath::Min( Length, BufferBase+BufferCount-Pos );
if( Copy<=0 )
{
if( Length >= ARRAY_COUNT( Buffer ) )
{
int64 Count=0;
{
ReadLowLevel(( uint8* )V, Length, Count );
}
if( Count!=Length )
{
TCHAR ErrorBuffer[1024];
ArIsError = true;
UE_LOG( LogFileManager, Warning, TEXT( "ReadFile failed: Count=%lld Length=%lld Error=%s for file %s" ),
Count, Length, FPlatformMisc::GetSystemErrorMessage( ErrorBuffer, 1024, 0 ), *Filename );
}
Pos += Length;
return;
}
InternalPrecache( Pos, MAX_int32 );
Copy = FMath::Min( Length, BufferBase+BufferCount-Pos );
if( Copy<=0 )
{
ArIsError = true;
UE_LOG( LogFileManager, Error, TEXT( "ReadFile beyond EOF %lld+%lld/%lld for file %s" ),
Pos, Length, Size, *Filename );
}
if( ArIsError )
{
return;
}
}
FMemory::Memcpy( V, Buffer+Pos-BufferBase, Copy );
Pos += Copy;
Length -= Copy;
V =( uint8* )V + Copy;
}
}
