THRIFT-923. cpp: Implement a fully nonblocking server and client
There are three major parts of this:
1/ New callback-style interfaces for for a few key Thrift components:
TAsyncProcessor for servers and TAsyncChannel for clients.
2/ Concrete implementations of TAsyncChannel and a server for
TAsyncProcessor based on evhttp.
3/ Async-style code generation for C++
git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@1005127 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/lib/cpp/src/async/TEvhttpClientChannel.h b/lib/cpp/src/async/TEvhttpClientChannel.h
new file mode 100644
index 0000000..d2bc4b3
--- /dev/null
+++ b/lib/cpp/src/async/TEvhttpClientChannel.h
@@ -0,0 +1,76 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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.
+ */
+
+#ifndef _THRIFT_TEVHTTP_CLIENT_CHANNEL_H_
+#define _THRIFT_TEVHTTP_CLIENT_CHANNEL_H_ 1
+
+#include <string>
+#include <boost/shared_ptr.hpp>
+#include "TAsyncChannel.h"
+
+struct event_base;
+struct evhttp_connection;
+struct evhttp_request;
+
+namespace apache { namespace thrift { namespace transport {
+class TMemoryBuffer;
+}}}
+
+namespace apache { namespace thrift { namespace async {
+
+class TEvhttpClientChannel : public TAsyncChannel {
+ public:
+ using TAsyncChannel::VoidCallback;
+
+ TEvhttpClientChannel(
+ const std::string& host,
+ const std::string& path,
+ const char* address,
+ int port,
+ struct event_base* eb);
+ ~TEvhttpClientChannel();
+
+ virtual bool sendAndRecvMessage(const VoidCallback& cob,
+ apache::thrift::transport::TMemoryBuffer* sendBuf,
+ apache::thrift::transport::TMemoryBuffer* recvBuf);
+
+ virtual bool sendMessage(const VoidCallback& cob, apache::thrift::transport::TMemoryBuffer* message);
+ virtual bool recvMessage(const VoidCallback& cob, apache::thrift::transport::TMemoryBuffer* message);
+
+ void finish(struct evhttp_request* req);
+
+ //XXX
+ virtual bool good() const { return true; }
+ virtual bool error() const { return false; }
+ virtual bool timedOut() const { return false; }
+
+ private:
+ static void response(struct evhttp_request* req, void* arg);
+
+ std::string host_;
+ std::string path_;
+ VoidCallback cob_;
+ apache::thrift::transport::TMemoryBuffer* recvBuf_;
+ struct evhttp_connection* conn_;
+
+};
+
+}}} // apache::thrift::async
+
+#endif // #ifndef _THRIFT_TEVHTTP_CLIENT_CHANNEL_H_