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/TEvhttpServer.h b/lib/cpp/src/async/TEvhttpServer.h
new file mode 100644
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--- /dev/null
+++ b/lib/cpp/src/async/TEvhttpServer.h
@@ -0,0 +1,71 @@
+/*
+ * 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_SERVER_H_
+#define _THRIFT_TEVHTTP_SERVER_H_ 1
+
+#include <boost/shared_ptr.hpp>
+
+struct event_base;
+struct evhttp;
+struct evhttp_request;
+
+namespace apache { namespace thrift { namespace async {
+
+class TAsyncBufferProcessor;
+
+class TEvhttpServer {
+ public:
+ /**
+ * Create a TEvhttpServer for use with an external evhttp instance.
+ * Must be manually installed with evhttp_set_cb, using
+ * TEvhttpServer::request as the callback and the
+ * address of the server as the extra arg.
+ * Do not call "serve" on this server.
+ */
+ TEvhttpServer(boost::shared_ptr<TAsyncBufferProcessor> processor);
+
+ /**
+ * Create a TEvhttpServer with an embedded event_base and evhttp,
+ * listening on port and responding on the endpoint "/".
+ * Call "serve" on this server to serve forever.
+ */
+ TEvhttpServer(boost::shared_ptr<TAsyncBufferProcessor> processor, int port);
+
+ ~TEvhttpServer();
+
+ static void request(struct evhttp_request* req, void* self);
+ int serve();
+
+ struct event_base* getEventBase();
+
+ private:
+ struct RequestContext;
+
+ void process(struct evhttp_request* req);
+ void complete(RequestContext* ctx, bool success);
+
+ boost::shared_ptr<TAsyncBufferProcessor> processor_;
+ struct event_base* eb_;
+ struct evhttp* eh_;
+};
+
+}}} // apache::thrift::async
+
+#endif // #ifndef _THRIFT_TEVHTTP_SERVER_H_