prepare_read
Description:
Returns a pointer to memory where the data from segment segment can be found.
This function is mostly used by subclasses.
Parameters:
| this |
the RingBuffer to read from |
| segment |
the segment to read |
| readptr |
the pointer to the memory where samples can be read |
| len |
the number of bytes to read |
Returns:
|
FALSE if the buffer is not started. MT safe. |