media/experimental/AdapterIO.cpp

92 	status_t WaitForData(off_t position, off_t size)
101 		while (bufferSize < position + size) {
119 		size_t size)
124 			_PositionToRelative(position), buffer, size);
129 		const void* buffer, size_t size)
134 			_PositionToRelative(position), buffer, size);
153 	virtual	status_t SetSize(off_t size)
157 		return fBuffer->SetSize(_PositionToRelative(size));
160 	virtual	status_t GetSize(off_t* size) const
166 		*size = _RelativeToPosition(fBackPosition);
171 	ssize_t BackWrite(const void* buffer, size_t size)
175 		off_t ret = fBuffer->WriteAt(fBackPosition, buffer, size);
276 BAdapterIO::ReadAt(off_t position, void* buffer, size_t size)
280 	status_t ret = _EvaluateWait(position, size);
284 	return fBuffer->ReadAt(position, buffer, size);
289 BAdapterIO::WriteAt(off_t position, const void* buffer, size_t size)
293 	return fBuffer->WriteAt(position, buffer, size);
303 	off_t size = 0;
308 		if (GetSize(&size) != B_OK)
311 		absolutePosition = size-position;
345 BAdapterIO::SetSize(off_t size)
350 		fTotalSize = size;
354 	return fBuffer->SetSize(size);
359 BAdapterIO::GetSize(off_t* size) const
364 		*size = fTotalSize;
368 	return fBuffer->GetSize(size);
443 BAdapterIO::BackWrite(const void* buffer, size_t size)
445 	return fBuffer->BackWrite(buffer, size);
450 BAdapterIO::_EvaluateWait(off_t pos, off_t size)
456 		TRACE("BAdapterIO::ReadAt: Can't get our size!\n");
459 		" S %" B_PRId64 "\n", totalSize, pos, size);
470 	return fBuffer->WaitForData(pos, size);
487 BInputAdapter::Write(const void* buffer, size_t size)
489 	return fIO->BackWrite(buffer, size);