void PLDataSource::Seek
( int n
)
{
m_BytesRead = n;
CheckEOF();
}
String* DataInput::ReadUTFBytes(uint32_t length)
{
CheckEOF(length);
char *buffer = mmfx_new_array_opt( char, length+1, MMgc::kCanFail );
if (!buffer) {
ThrowMemoryError();
}
Read(buffer, length);
buffer[length] = 0;
// Since this is supposed to read UTF8 into a string, it really should ignore the UTF8 BOM that
// might reasonably occur at the head of the data.
char* utf8chars = buffer;
if (length >= 3 && (unsigned char)buffer[0] == 0xEF && (unsigned char)buffer[1] == 0xBB && (unsigned char)buffer[2] == 0xBF)
{
utf8chars += 3;
}
String *out = m_toplevel->core()->newStringUTF8(utf8chars);
mmfx_delete_array( buffer );
return out;
}
void ByteArrayFile::Read(void *buffer, uint32_t count)
{
CheckEOF(count);
if (count > 0)
{
VMPI_memcpy(buffer, m_array+m_filePointer, count);
m_filePointer += count;
}
}
PLBYTE * PLDataSource::ReadNBytes
( int n
)
{
int OldBytesRead = m_BytesRead;
m_BytesRead += n;
if (m_BytesRead/1024 > OldBytesRead/1024 && m_pNotification)
m_pNotification->OnProgress (double(m_BytesRead)/m_FileSize);
CheckEOF();
return NULL;
}
void SocketFile::ReadOutCache(void *data, uint32_t length)
{
CheckEOF(length);
if (length > 0)
{
VMPI_memcpy(data, m_outCache.GetBuffer() + m_outReadPos, length);
m_outReadPos += length;
}
//if (0 == OutCacheBytesAvailable())
//{
// m_outReadPos = m_outWritePos = 0;
//}
}
void SocketFile::ReadInCache(void *data, uint32_t count)
{
CheckEOF(count);
if (count > 0)
{
AvmAssert(m_inReadPos+count<=m_inCache.GetLength());
VMPI_memcpy(data, m_inCache.GetBuffer() + m_inReadPos, count);
m_inReadPos += count;
}
//if (0 == InCacheBytesAvailable())
//{
// m_inReadPos = m_inWritePos = 0;
//}
}
