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49ff8b123a
To ensure there are no include path collisions the C and C++ header include paths should include 'thrift' as the root leaf. This will prevent having to place /usr/include/thrift into the compilers include header search path, which might otherwise result in the compiler accidentally picking up headers that it shouldn't. e.g. #include <foo/bar.h> should be #include <thrift/foo/bar.h> Change-Id: I48f2b0f549bda0fc81e85506ac857adc800b98a1 git-svn-id: https://svn.apache.org/repos/asf/thrift/trunk@1325674 13f79535-47bb-0310-9956-ffa450edef68
98 lines
3.0 KiB
C++
98 lines
3.0 KiB
C++
#include <tr1/functional>
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#include <thrift/protocol/TBinaryProtocol.h>
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#include <thrift/async/TAsyncProtocolProcessor.h>
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#include <thrift/async/TEvhttpServer.h>
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#include <thrift/async/TEvhttpClientChannel.h>
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#include "Aggr.h"
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using std::tr1::bind;
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using std::tr1::placeholders::_1;
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using apache::thrift::TException;
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using apache::thrift::protocol::TBinaryProtocolFactory;
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using apache::thrift::protocol::TProtocolFactory;
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using apache::thrift::async::TEvhttpServer;
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using apache::thrift::async::TAsyncProcessor;
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using apache::thrift::async::TAsyncBufferProcessor;
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using apache::thrift::async::TAsyncProtocolProcessor;
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using apache::thrift::async::TAsyncChannel;
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using apache::thrift::async::TEvhttpClientChannel;
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class AggrAsyncHandler : public AggrCobSvIf {
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protected:
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struct RequestContext {
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std::tr1::function<void(std::vector<int32_t> const& _return)> cob;
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std::vector<int32_t> ret;
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int pending_calls;
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};
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public:
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AggrAsyncHandler()
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: eb_(NULL)
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, pfact_(new TBinaryProtocolFactory())
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{
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leaf_ports_.push_back(8081);
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leaf_ports_.push_back(8082);
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}
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void addValue(std::tr1::function<void()> cob, const int32_t value) {
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// Silently drop writes to the aggrgator.
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return cob();
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}
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void getValues(std::tr1::function<void(
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std::vector<int32_t> const& _return)> cob,
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std::tr1::function<void(::apache::thrift::TDelayedException* _throw)> exn_cob) {
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RequestContext* ctx = new RequestContext();
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ctx->cob = cob;
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ctx->pending_calls = leaf_ports_.size();
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for (std::vector<int>::iterator it = leaf_ports_.begin();
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it != leaf_ports_.end(); ++it) {
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boost::shared_ptr<TAsyncChannel> channel(
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new TEvhttpClientChannel(
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"localhost", "/", "127.0.0.1", *it, eb_));
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AggrCobClient* client = new AggrCobClient(channel, pfact_.get());
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client->getValues(std::tr1::bind(&AggrAsyncHandler::clientReturn, this, ctx, _1));
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}
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}
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void setEventBase(struct event_base* eb) {
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eb_ = eb;
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}
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void clientReturn(RequestContext* ctx, AggrCobClient* client) {
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ctx->pending_calls -= 1;
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try {
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std::vector<int32_t> subret;
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client->recv_getValues(subret);
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ctx->ret.insert(ctx->ret.end(), subret.begin(), subret.end());
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} catch (TException& exn) {
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// TODO: Log error
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}
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delete client;
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if (ctx->pending_calls == 0) {
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ctx->cob(ctx->ret);
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delete ctx;
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}
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}
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protected:
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struct event_base* eb_;
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std::vector<int> leaf_ports_;
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boost::shared_ptr<TProtocolFactory> pfact_;
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};
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int main() {
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boost::shared_ptr<AggrAsyncHandler> handler(new AggrAsyncHandler());
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boost::shared_ptr<TAsyncProcessor> proc(new AggrAsyncProcessor(handler));
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boost::shared_ptr<TProtocolFactory> pfact(new TBinaryProtocolFactory());
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boost::shared_ptr<TAsyncBufferProcessor> bufproc(new TAsyncProtocolProcessor(proc, pfact));
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boost::shared_ptr<TEvhttpServer> server(new TEvhttpServer(bufproc, 8080));
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handler->setEventBase(server->getEventBase());
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server->serve();
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}
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