static void
do_xmit_work(struct c8250_serial *device)
{
struct stream_interface *si = &device->tx;
struct stream_pkt *packet = stream_get_head(si);
if (packet == NULL) {
return;
}
assert(packet->data);
while (!tx_ready()) {
thr_write(packet->data[packet->xferred++]);
assert(packet->xferred <= packet->length);
if (packet->xferred == packet->length) {
packet = stream_switch_head(si);
if (packet == NULL) {
break;
}
}
}
ier_set_txie(1);
return;
}
bool
LogSinkImpl::write(const char* s, size_t n)
{
# ifdef LINKO_LOG_THREAD
if (_thread) return thr_write(s, n);
# endif
# if defined LINKO_LOG_WRITE_WO_MUTEX && defined LINKO_LOG_MT
// Without mutex, it's much safer to always return true (success)!
return mx_write(s, n), true;
# else
// It seems that mutex lock is unnecessary here!
// Important is O_APPEND flag on open.
// Performance cost of this lock is very big for high congestions.
// Mutex is only important for correct rotate() operation.
MUTEX_GUARD(_mutex);
return mx_write(s, n);
# endif
}
