SenexCrenshaw
commented
7 months ago int dataInBuffer = (_writeIndex - _oldestDataIndex + _buffer.Length) % _buffer.Length;
This line calculates the amount of data in the buffer assuming a circular buffer. Here's the breakdown:
_writeIndex - _oldestDataIndex: This calculates the difference between where data is being written and the oldest data in the buffer. If _writeIndex is ahead of _oldestDataIndex, this gives the size of the data between them. Adding _buffer.Length: This ensures that the result is positive even if _oldestDataIndex is greater than _writeIndex (which can happen in a circular buffer). Taking the modulo % _buffer.Length: This adjusts the result to be within the bounds of the buffer size.
int dataInBuffer = _oldestDataIndex > 0 ? _buffer.Length : _writeIndex;
This line uses a ternary operator to set dataInBuffer:
If _oldestDataIndex is greater than 0, it sets dataInBuffer to _buffer.Length. This seems to assume that if the oldest data index is not at the start of the buffer, the buffer is completely full. If _oldestDataIndex is 0 or less, it sets dataInBuffer to _writeIndex. This seems to assume that all data from the start of the buffer to _writeIndex is valid, ignoring _oldestDataIndex. In summary, the first line accurately calculates the amount of data in a circular buffer, while the second line makes a simplified assumption that might not always hold true, especially in a circular buffer scenario where _oldestDataIndex and _writeIndex can vary independently.
Description
Updates to write the stream contents to the circular buffer is chunks instead of one byte at a time. When reading from the buffer, wait until data is available instead of polling & using semaphores.
Issues Fixed or Closed
Type of Change
Please delete options that are not relevant.
Checklist