delete folly/wangle

[folly.git] / folly / wangle / channel / Handler.h

diff --git a/folly/wangle/channel/Handler.h b/folly/wangle/channel/Handler.h
deleted file mode 100644 (file)
index 127ac97..0000000
--- a/folly/wangle/channel/Handler.h
+++ /dev/null
@@ -1,173 +0,0 @@
-/*
- * Copyright 2015 Facebook, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <folly/futures/Future.h>
-#include <folly/wangle/channel/Pipeline.h>
-#include <folly/io/IOBuf.h>
-#include <folly/io/IOBufQueue.h>
-
-namespace folly { namespace wangle {
-
-template <class Context>
-class HandlerBase {
- public:
-  virtual ~HandlerBase() = default;
-
-  virtual void attachPipeline(Context* ctx) {}
-  virtual void detachPipeline(Context* ctx) {}
-
-  Context* getContext() {
-    if (attachCount_ != 1) {
-      return nullptr;
-    }
-    CHECK(ctx_);
-    return ctx_;
-  }
-
- private:
-  friend PipelineContext;
-  uint64_t attachCount_{0};
-  Context* ctx_{nullptr};
-};
-
-template <class Rin, class Rout = Rin, class Win = Rout, class Wout = Rin>
-class Handler : public HandlerBase<HandlerContext<Rout, Wout>> {
- public:
-  static const HandlerDir dir = HandlerDir::BOTH;
-
-  typedef Rin rin;
-  typedef Rout rout;
-  typedef Win win;
-  typedef Wout wout;
-  typedef HandlerContext<Rout, Wout> Context;
-  virtual ~Handler() = default;
-
-  virtual void read(Context* ctx, Rin msg) = 0;
-  virtual void readEOF(Context* ctx) {
-    ctx->fireReadEOF();
-  }
-  virtual void readException(Context* ctx, exception_wrapper e) {
-    ctx->fireReadException(std::move(e));
-  }
-  virtual void transportActive(Context* ctx) {
-    ctx->fireTransportActive();
-  }
-  virtual void transportInactive(Context* ctx) {
-    ctx->fireTransportInactive();
-  }
-
-  virtual Future<Unit> write(Context* ctx, Win msg) = 0;
-  virtual Future<Unit> close(Context* ctx) {
-    return ctx->fireClose();
-  }
-
-  /*
-  // Other sorts of things we might want, all shamelessly stolen from Netty
-  // inbound
-  virtual void exceptionCaught(
-      HandlerContext* ctx,
-      exception_wrapper e) {}
-  virtual void channelRegistered(HandlerContext* ctx) {}
-  virtual void channelUnregistered(HandlerContext* ctx) {}
-  virtual void channelReadComplete(HandlerContext* ctx) {}
-  virtual void userEventTriggered(HandlerContext* ctx, void* evt) {}
-  virtual void channelWritabilityChanged(HandlerContext* ctx) {}
-
-  // outbound
-  virtual Future<Unit> bind(
-      HandlerContext* ctx,
-      SocketAddress localAddress) {}
-  virtual Future<Unit> connect(
-          HandlerContext* ctx,
-          SocketAddress remoteAddress, SocketAddress localAddress) {}
-  virtual Future<Unit> disconnect(HandlerContext* ctx) {}
-  virtual Future<Unit> deregister(HandlerContext* ctx) {}
-  virtual Future<Unit> read(HandlerContext* ctx) {}
-  virtual void flush(HandlerContext* ctx) {}
-  */
-};
-
-template <class Rin, class Rout = Rin>
-class InboundHandler : public HandlerBase<InboundHandlerContext<Rout>> {
- public:
-  static const HandlerDir dir = HandlerDir::IN;
-
-  typedef Rin rin;
-  typedef Rout rout;
-  typedef Unit win;
-  typedef Unit wout;
-  typedef InboundHandlerContext<Rout> Context;
-  virtual ~InboundHandler() = default;
-
-  virtual void read(Context* ctx, Rin msg) = 0;
-  virtual void readEOF(Context* ctx) {
-    ctx->fireReadEOF();
-  }
-  virtual void readException(Context* ctx, exception_wrapper e) {
-    ctx->fireReadException(std::move(e));
-  }
-  virtual void transportActive(Context* ctx) {
-    ctx->fireTransportActive();
-  }
-  virtual void transportInactive(Context* ctx) {
-    ctx->fireTransportInactive();
-  }
-};
-
-template <class Win, class Wout = Win>
-class OutboundHandler : public HandlerBase<OutboundHandlerContext<Wout>> {
- public:
-  static const HandlerDir dir = HandlerDir::OUT;
-
-  typedef Unit rin;
-  typedef Unit rout;
-  typedef Win win;
-  typedef Wout wout;
-  typedef OutboundHandlerContext<Wout> Context;
-  virtual ~OutboundHandler() = default;
-
-  virtual Future<Unit> write(Context* ctx, Win msg) = 0;
-  virtual Future<Unit> close(Context* ctx) {
-    return ctx->fireClose();
-  }
-};
-
-template <class R, class W = R>
-class HandlerAdapter : public Handler<R, R, W, W> {
- public:
-  typedef typename Handler<R, R, W, W>::Context Context;
-
-  void read(Context* ctx, R msg) override {
-    ctx->fireRead(std::forward<R>(msg));
-  }
-
-  Future<Unit> write(Context* ctx, W msg) override {
-    return ctx->fireWrite(std::forward<W>(msg));
-  }
-};
-
-typedef HandlerAdapter<IOBufQueue&, std::unique_ptr<IOBuf>>
-BytesToBytesHandler;
-
-typedef InboundHandler<IOBufQueue&, std::unique_ptr<IOBuf>>
-InboundBytesToBytesHandler;
-
-typedef OutboundHandler<std::unique_ptr<IOBuf>>
-OutboundBytesToBytesHandler;
-
-}}