InSituBuffer has a fixed-size (set at compile time) buffer inside it.
alloc() may move data on wrap
FallbackBuffer contains two buffers and uses the first one until it fails to alloc() the requested size. FallbackBuffer then tries to alloc() using the other buffer and moves the data to it, if successful.
InSituBuffer has a fixed-size (set at compile time) buffer inside it.
alloc() may move data on wrap
FallbackBuffer contains two buffers and uses the first one until it fails to alloc() the requested size. FallbackBuffer then tries to alloc() using the other buffer and moves the data to it, if successful.