91 lines
2.4 KiB
C
91 lines
2.4 KiB
C
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// Copyright (c) 2006- Facebook
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// Distributed under the Thrift Software License
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//
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// See accompanying file LICENSE or visit the Thrift site at:
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// http://developers.facebook.com/thrift/
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#ifndef THRIFT_TASYNCPROCESSOR_H
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#define THRIFT_TASYNCPROCESSOR_H 1
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#include <tr1/functional>
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#include <boost/shared_ptr.hpp>
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#include "thrift/lib/cpp/TProcessor.h"
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#include "thrift/lib/cpp/server/TConnectionContext.h"
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#include "thrift/lib/cpp/protocol/TProtocol.h"
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using apache::thrift::server::TConnectionContext;
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namespace apache { namespace thrift { namespace async {
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/**
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* Async version of a TProcessor. It is not expected to complete by the time
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* the call to process returns. Instead, it calls a cob to signal completion.
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*
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* @author David Reiss <dreiss@facebook.com>
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*/
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class TEventServer; // forward declaration
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class TAsyncProcessor : public TProcessorBase {
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public:
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virtual ~TAsyncProcessor() {}
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virtual void process(std::tr1::function<void(bool success)> _return,
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boost::shared_ptr<protocol::TProtocol> in,
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boost::shared_ptr<protocol::TProtocol> out,
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TConnectionContext* context = NULL) = 0;
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void process(std::tr1::function<void(bool success)> _return,
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boost::shared_ptr<apache::thrift::protocol::TProtocol> io) {
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return process(_return, io, io);
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}
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const TEventServer* getAsyncServer() {
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return asyncServer_;
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}
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protected:
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TAsyncProcessor() {}
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const TEventServer* asyncServer_;
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private:
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friend class TEventServer;
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void setAsyncServer(const TEventServer* server) {
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asyncServer_ = server;
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}
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};
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class TAsyncProcessorFactory {
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public:
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virtual ~TAsyncProcessorFactory() {}
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/**
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* Get the TAsyncProcessor to use for a particular connection.
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*/
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virtual boost::shared_ptr<TAsyncProcessor> getProcessor(
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server::TConnectionContext* ctx) = 0;
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};
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class TAsyncSingletonProcessorFactory : public TAsyncProcessorFactory {
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public:
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explicit TAsyncSingletonProcessorFactory(
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const boost::shared_ptr<TAsyncProcessor>& processor) :
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processor_(processor) {}
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boost::shared_ptr<TAsyncProcessor> getProcessor(server::TConnectionContext*) {
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return processor_;
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}
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private:
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boost::shared_ptr<TAsyncProcessor> processor_;
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};
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}}} // apache::thrift::async
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// XXX I'm lazy for now
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namespace apache { namespace thrift {
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using apache::thrift::async::TAsyncProcessor;
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}}
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#endif // #ifndef THRIFT_TASYNCPROCESSOR_H
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