public TransportThread(IoUringOptions options)
{
int res = eventfd(0, EFD_CLOEXEC | EFD_NONBLOCK);
if (res == -1)
{
throw new ErrnoException(errno);
}
_eventfd = res;
// Pin buffer for eventfd reads via io_uring
byte[] bytes = new byte[8];
_eventfdBytes = GCHandle.Alloc(bytes, GCHandleType.Pinned);
// Pin iovec used for eventfd reads via io_uring
var eventfdIoVec = new iovec
{
iov_base = (void *)_eventfdBytes.AddrOfPinnedObject(),
iov_len = bytes.Length
};
_eventfdIoVecHandle = GCHandle.Alloc(eventfdIoVec, GCHandleType.Pinned);
_eventfdIoVec = (iovec *)_eventfdIoVecHandle.AddrOfPinnedObject();
var memoryPool = new SlabMemoryPool();
_threadContext = new TransportThreadContext(options, memoryPool, _eventfd, s => Read(s), s => Write(s));
_maxBufferSize = memoryPool.MaxBufferSize;
}
protected IoUringConnectionContext(LinuxSocket socket, EndPoint local, EndPoint remote, TransportThreadContext threadContext)
{
Socket = socket;
LocalEndPoint = local;
RemoteEndPoint = remote;
MemoryPool = threadContext.MemoryPool;
_threadContext = threadContext;
var appScheduler = threadContext.Options.ApplicationSchedulingMode;
var inputOptions = new PipeOptions(MemoryPool, appScheduler, PipeScheduler.Inline, PauseInputWriterThreshold, PauseInputWriterThreshold / 2, useSynchronizationContext: false);
var outputOptions = new PipeOptions(MemoryPool, PipeScheduler.Inline, appScheduler, PauseOutputWriterThreshold, PauseOutputWriterThreshold / 2, useSynchronizationContext: false);
var pair = DuplexPipe.CreateConnectionPair(inputOptions, outputOptions);
Transport = pair.Transport;
Application = pair.Application;
_onOnFlushedToApp = FlushedToAppAsynchronously;
_onReadFromApp = ReadFromAppAsynchronously;
iovec[] vecs = new iovec[ReadIOVecCount + WriteIOVecCount];
var handle = GCHandle.Alloc(vecs, GCHandleType.Pinned);
_iovec = (iovec *)handle.AddrOfPinnedObject();
_iovecHandle = handle;
}
public TransportThread(IoUringOptions options)
{
_ring = new Ring(RingSize);
SetupEventFd();
_threadContext = new TransportThreadContext(options, _readPollQueue, _writePollQueue, _memoryPool, _eventfd);
}
