internal void Reset()
{
this.status = 0;
this.endOfStream = false;
this.buffer = Unpooled.Empty;
this.error = null;
}
internal void Reset()
{
_status = 0;
_endOfStream = false;
_buffer = Unpooled.Empty;
_error = null;
}
internal void Complete(int statusCode, OperationException operationException)
{
Release();
_status = statusCode;
_endOfStream = statusCode == NativeMethods.EOF;
_error = operationException;
}
internal void Complete(int statusCode, OperationException operationException)
{
this.Release();
this.status = statusCode;
this.endOfStream = statusCode == NativeMethods.EOF;
this.error = operationException;
}
internal void Release()
{
this.ReleaseHandles();
this.nativeUnsafe = null;
this.Error = null;
this.recyclerHandle.Release(this);
}
internal void Complete(int status, OperationException error)
{
this.Release();
this.Status = status;
this.EndOfStream = status == (int)uv_err_code.UV_EOF;
this.Error = error;
this.nativeUnsafe.FinishRead(this);
}
void OnWriteCallback(int status)
{
if (status < 0)
{
OperationException error = NativeMethods.CreateError((uv_err_code)status);
//Logger.Warn($"{nameof(PipeListener)} failed to write server handle to client", error);
}
this.sentHandle.CloseHandle();
this.Dispose();
}
void OnWriteCallback(int status)
{
this.ReleaseHandles();
if (status < 0)
{
this.Error = NativeMethods.CreateError((uv_err_code)status);
}
this.nativeUnsafe.FinishWrite(this);
}
void OnWriteCallback(int status)
{
if (status < 0)
{
OperationException error = NativeMethods.CreateError((uv_err_code)status);
if (Logger.WarnEnabled)
{
Logger.FailedToWriteServerHandleToClient(error);
}
}
_sentHandle.CloseHandle();
Dispose();
}
static void OnReadCallback(IntPtr handle, IntPtr nread, ref uv_buf_t buf)
{
var tcp = GetTarget <Tcp>(handle);
int status = (int)nread.ToInt64();
OperationException error = null;
if (status < 0 && status != NativeMethods.EOF)
{
error = NativeMethods.CreateError((uv_err_code)status);
}
tcp.OnReadCallback(status, error);
}
void OnWriteCallback(int status)
{
NativeChannel.INativeUnsafe @unsafe = this.nativeUnsafe;
int bytesWritten = this.size;
this.Release();
OperationException error = null;
if (status < 0)
{
error = NativeMethods.CreateError((uv_err_code)status);
}
@unsafe.FinishWrite(bytesWritten, error);
}
void OnReadCallback(int statusCode, OperationException error)
{
try
{
this.pendingRead.Complete(statusCode, error);
this.nativeUnsafe.FinishRead(this.pendingRead);
}
catch (Exception exception)
{
//Logger.Warn($"Tcp {this.Handle} read callbcak error.", exception);
}
finally
{
this.pendingRead.Reset();
}
}
void OnReadCallback(int statusCode, OperationException error)
{
try
{
_pendingRead.Complete(statusCode, error);
_nativeUnsafe.FinishRead(_pendingRead);
}
catch (Exception exception)
{
if (Logger.WarnEnabled)
{
Logger.TcpHandleReadCallbcakError(Handle, exception);
}
}
finally
{
_pendingRead.Reset();
}
}
void OnRead(Pipe pipe, int status)
{
// The server connection is never meant to read anything back
// it is only used for passing handles over to different loops
// Therefore the only message should come back is EOF
if (status >= 0)
{
return;
}
this.windowsApi.Dispose();
this.pipes.Remove(pipe);
pipe.CloseHandle();
if (status != NativeMethods.EOF)
{
OperationException error = NativeMethods.CreateError((uv_err_code)status);
//Logger.Warn($"{nameof(PipeListener)} read error", error);
}
}
static void OnReadCallback(IntPtr handle, IntPtr nread, ref uv_buf_t buf)
{
var tcp = GetTarget <Tcp>(handle);
int status = (int)nread.ToInt64();
OperationException error = null;
if (status < 0 && status != (int)uv_err_code.UV_EOF)
{
error = NativeMethods.CreateError((uv_err_code)status);
}
ReadOperation operation = tcp.pendingReads.Poll();
if (operation == null)
{
if (error != null)
{
// It is possible if the client connection resets
// causing errors where there are no pending read
// operations, in this case we just notify the channel
// for errors
operation = new ReadOperation(tcp.unsafeChannel, Unpooled.Empty);
}
else
{
Logger.Warn("Channel read operation completed prematurely.");
return;
}
}
try
{
operation.Complete(status, error);
}
catch (Exception exception)
{
Logger.Warn("Channel read callbcak failed.", exception);
}
}
private void OnRead(Pipe pipe, int status)
{
// The server connection is never meant to read anything back
// it is only used for passing handles over to different loops
// Therefore the only message should come back is EOF
if (status >= 0)
{
return;
}
_windowsApi.Dispose();
_ = _pipes.Remove(pipe);
pipe.CloseHandle();
if (status != NativeMethods.EOF)
{
OperationException error = NativeMethods.CreateError((uv_err_code)status);
if (Logger.WarnEnabled)
{
Logger.ReadError(error);
}
}
}
public void Close()
{
IntPtr loopHandle = this.Handle;
if (loopHandle == IntPtr.Zero)
{
return;
}
// Get gc handle before close loop
IntPtr pHandle = ((uv_loop_t *)loopHandle)->data;
// Close loop
try
{
int retry = 0;
while (retry < 10)
{
// Force close all active handles before close the loop
NativeMethods.uv_walk(loopHandle, WalkCallback, loopHandle);
Logger.Debug($"Loop {loopHandle} walk all handles completed.");
// Loop.Run here actually blocks in some intensive situitions
// and it is highly unpredictable. For now, we rely on the users
// to do the right things before disposing the loop,
// e.g. close all handles before calling this.
// NativeMethods.RunLoop(handle, uv_run_mode.UV_RUN_DEFAULT);
int result = NativeMethods.uv_loop_close(loopHandle);
if (result >= 0)
{
break;
}
else
{
OperationException error = NativeMethods.CreateError((uv_err_code)result);
// Only retry if loop close return busy
if (error.Name != "EBUSY")
{
throw error;
}
}
retry++;
}
}
catch (Exception exception)
{
Logger.Warn($"Loop {loopHandle} error attempt to run loop once before closing. {exception}");
}
Logger.Info($"Loop {loopHandle} closed.");
// Free GCHandle
if (pHandle != IntPtr.Zero)
{
GCHandle nativeHandle = GCHandle.FromIntPtr(pHandle);
if (nativeHandle.IsAllocated)
{
nativeHandle.Free();
((uv_loop_t *)loopHandle)->data = IntPtr.Zero;
Logger.Info($"Loop {loopHandle} GCHandle released.");
}
}
// Release memory
Marshal.FreeHGlobal(loopHandle);
this.Handle = IntPtr.Zero;
Logger.Info($"Loop {loopHandle} memory released.");
}
