public unsafe bool TryGetLoop(out Loop loop)
{
loop = null;
try
{
IntPtr nativeHandle = this.InternalHandle;
if (nativeHandle == IntPtr.Zero)
{
return(false);
}
IntPtr loopHandle = ((uv_handle_t *)nativeHandle)->loop;
if (loopHandle != IntPtr.Zero)
{
loop = HandleContext.GetTarget <Loop>(loopHandle);
}
return(loop != null);
}
catch (Exception exception)
{
Log.Warn($"{this.HandleType} Failed to get loop.", exception);
return(false);
}
}
protected override unsafe StreamHandle NewStream()
{
IntPtr loopHandle = ((uv_stream_t *)this.InternalHandle)->loop;
var loop = HandleContext.GetTarget <LoopContext>(loopHandle);
return(new Tcp(loop));
}
static void OnWorkCallback(IntPtr handle)
{
if (handle == IntPtr.Zero)
{
return;
}
var workHandle = HandleContext.GetTarget <WorkHandle>(handle);
workHandle?.OnWorkCallback();
}
internal ScheduleHandle(LoopContext loop, uv_handle_type handleType)
{
Contract.Requires(loop != null);
HandleContext initialHandle = NativeMethods.Initialize(loop.Handle, handleType, this);
if (initialHandle == null)
{
throw new InvalidOperationException($"Initialize {handleType} for loop {loop.Handle} failed.");
}
this.handle = initialHandle;
this.HandleType = handleType;
}
static void OnWalkCallback(IntPtr handle, IntPtr loopHandle)
{
if (handle == IntPtr.Zero)
{
return;
}
try
{
var target = HandleContext.GetTarget <IDisposable>(handle);
target?.Dispose();
Log.Info($"Loop {loopHandle} walk callback disposed {handle} {target?.GetType()}");
}
catch (Exception exception)
{
Log.Warn($"Loop {loopHandle} Walk callback attempt to close handle {handle} failed. {exception}");
}
}
static void OnAllocateCallback(IntPtr handle, IntPtr suggestedSize, out uv_buf_t buf)
{
var stream = HandleContext.GetTarget <StreamHandle>(handle);
stream.OnAllocateCallback(out buf);
}
static void OnReadCallback(IntPtr handle, IntPtr nread, ref uv_buf_t buf)
{
var stream = HandleContext.GetTarget <StreamHandle>(handle);
stream.OnReadCallback(ref buf, (int)nread.ToInt64());
}
