static void OnConnectionCallback(IntPtr handle, int status)
{
TcpStream server = HandleContext.GetTarget <TcpStream>(handle);
if (server == null)
{
return;
}
TcpStream client = null;
Exception error = null;
try
{
if (status < 0)
{
error = NativeMethods.CreateError((uv_err_code)status);
}
else
{
client = server.NewStream();
// initialize internal buffer after we can access libuv
// send/recv buffer sizes (which is after connecting)
client.InitializeInternalBuffers();
}
server.onServerConnect(client, error);
}
catch
{
client?.Dispose();
throw;
}
}
static void OnCloseHandle(IntPtr handle)
{
if (handle == IntPtr.Zero)
{
return;
}
TcpStream scheduleHandle = null;
// Get gc handle first
IntPtr pHandle = ((uv_handle_t *)handle)->data;
if (pHandle != IntPtr.Zero)
{
GCHandle nativeHandle = GCHandle.FromIntPtr(pHandle);
if (nativeHandle.IsAllocated)
{
scheduleHandle = nativeHandle.Target as TcpStream;
nativeHandle.Free();
((uv_handle_t *)handle)->data = IntPtr.Zero;
}
}
// Release memory
Marshal.FreeCoTaskMem(handle);
scheduleHandle?.OnHandleClosed();
}
internal HandleContext(
uv_handle_type handleType,
Func <IntPtr, IntPtr, int> initializer,
IntPtr loopHandle,
TcpStream target)
{
if (loopHandle != IntPtr.Zero && initializer != null && target != null)
{
int size = NativeMethods.GetSize(handleType);
IntPtr handle = Marshal.AllocCoTaskMem(size);
try
{
int result = initializer(loopHandle, handle);
NativeMethods.ThrowIfError(result);
}
catch (Exception)
{
Marshal.FreeCoTaskMem(handle);
throw;
}
GCHandle gcHandle = GCHandle.Alloc(target, GCHandleType.Normal);
((uv_handle_t *)handle)->data = GCHandle.ToIntPtr(gcHandle);
Handle = handle;
this.handleType = handleType;
//Logger.Log($"{handleType} {handle} allocated");
}
else
{
throw new ArgumentException($"loopHandle {loopHandle}, initializer {initializer}, target {target} can't be null!");
}
}
// creates a new TcpStream for a connecting client
internal TcpStream NewStream()
{
TcpStream client = new TcpStream(loop);
NativeMethods.StreamAccept(Handle, client.Handle);
client.ReadStart();
//Logger.Log($"TcpStream {InternalHandle} client {client.InternalHandle} accepted.");
return(client);
}
// creates a new TcpStream for a connecting client
internal unsafe TcpStream NewStream()
{
IntPtr loopHandle = ((uv_stream_t *)InternalHandle)->loop;
Loop loop = HandleContext.GetTarget <Loop>(loopHandle);
TcpStream client = new TcpStream(loop);
NativeMethods.StreamAccept(InternalHandle, client.InternalHandle);
client.ReadStart();
//Logger.Log($"{HandleType} {InternalHandle} client {client.InternalHandle} accepted.");
return(client);
}
static void OnConnectionCallback(IntPtr handle, int status)
{
// look up the C# TcpStream for this native handle
if (nativeLookup.TryGetValue(handle, out NativeHandle entry))
{
if (entry is TcpStream server)
{
TcpStream client = null;
Exception error = null;
try
{
if (status < 0)
{
error = NativeMethods.CreateError((uv_err_code)status);
}
else
{
client = server.NewStream();
// initialize internal buffer after we can access libuv
// send/recv buffer sizes (which is after connecting)
client.InitializeInternalBuffers();
}
server.onServerConnect(client, error);
}
catch
{
client?.Dispose();
throw;
}
}
else
{
Log.Error($"TcpStream.OnConnectionCallback: unexpected lookup type: {entry.GetType()}");
}
}
else
{
Log.Error($"TcpStream.OnConnectionCallback: nativeLookup no entry found for handle={handle}");
}
}
static void OnAllocateCallback(IntPtr handle, IntPtr suggestedSize, out uv_buf_t buf)
{
TcpStream stream = HandleContext.GetTarget <TcpStream>(handle);
buf = stream.readBufferStruct;
}
static void OnReadCallback(IntPtr handle, IntPtr nread, ref uv_buf_t buf)
{
TcpStream stream = HandleContext.GetTarget <TcpStream>(handle);
stream.OnReadCallback(stream.readBuffer, (int)nread.ToInt64());
}
