DEF_BUFFER_SIZE
memset(fReadBuffer, 'z', DEF_BUFFER_SIZE);
memset(fWriteBuffer, 'z', DEF_BUFFER_SIZE);
size_t bytesLeft = DEF_BUFFER_SIZE - atomic_get(&fWriteBufferAvail);
bytesLeft = MIN(bytesLeft, DEF_BUFFER_SIZE - fWriteBufferIn);
fWriteBufferIn %= DEF_BUFFER_SIZE;
char fReadBuffer[DEF_BUFFER_SIZE];
char fWriteBuffer[DEF_BUFFER_SIZE];
fReadBufferSize(ROUNDUP(DEF_BUFFER_SIZE, 16)),
fOutputBufferSize(ROUNDUP(DEF_BUFFER_SIZE, 16)),
fWriteBufferSize(ROUNDUP(DEF_BUFFER_SIZE, 16)),