long RingBuffer_AdvanceWriteIndex( RingBuffer *rbuf, long numBytes )
{
#ifdef MPSAFE
/* we need to ensure that previous writes are seen before we update the write index */
WriteMemoryBarrier();
return rbuf->writeIndex = (rbuf->writeIndex + numBytes) & rbuf->bigMask;
#else
return rbuf->writeIndex = (rbuf->writeIndex + numBytes) & rbuf->bigMask;
#endif
}
long RingBuffer_AdvanceReadIndex( RingBuffer *rbuf, long numBytes )
{
#ifdef MPSAFE
/* we need to ensure that previous writes are always seen before updating the index. */
WriteMemoryBarrier();
return rbuf->readIndex = (rbuf->readIndex + numBytes) & rbuf->bigMask;
#else
return rbuf->readIndex = (rbuf->readIndex + numBytes) & rbuf->bigMask;
#endif
}
LogStream& StdLogStream()
{
static LogStream *s;
ReadMemoryBarrier();
if(!s) {
static StaticCriticalSection lock;
lock.Enter();
if(!s) {
static byte lb[sizeof(LogStream)];
LogStream *strm = new(lb) LogStream;
if(!*__logfilename)
sOpenVppLog(strm);
WriteMemoryBarrier();
s = strm;
}
lock.Leave();
}
return *s;
}
