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/*
* 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.
*/
#include "TZmqServer.h"
#include <thrift/transport/TBufferTransports.h>
#include <boost/scoped_ptr.hpp>
using apache::thrift::std::shared_ptr;
using apache::thrift::transport::TMemoryBuffer;
using apache::thrift::protocol::TProtocol;
namespace apache { namespace thrift { namespace server {
bool TZmqServer::serveOne(int recv_flags) {
zmq::message_t msg;
bool received = sock_.recv(&msg, recv_flags);
if (!received) {
return false;
}
shared_ptr<TMemoryBuffer> inputTransport(new TMemoryBuffer((uint8_t*)msg.data(), msg.size()));
shared_ptr<TMemoryBuffer> outputTransport(new TMemoryBuffer());
shared_ptr<TProtocol> inputProtocol(
inputProtocolFactory_->getProtocol(inputTransport));
shared_ptr<TProtocol> outputProtocol(
outputProtocolFactory_->getProtocol(outputTransport));
shared_ptr<TMemoryBuffer> transport(new TMemoryBuffer);
processor_->process(inputProtocol, outputProtocol, nullptr);
if (zmq_type_ == ZMQ_REP) {
uint8_t* buf;
uint32_t size;
outputTransport->getBuffer(&buf, &size);
msg.rebuild(size);
std::memcpy(msg.data(), buf, size);
(void)sock_.send(msg);
}
return true;
}
void TZmqMultiServer::serveOne(long timeout) {
boost::scoped_ptr<zmq::pollitem_t> items(setupPoll());
serveActive(items.get(), timeout);
}
void TZmqMultiServer::serveForever() {
boost::scoped_ptr<zmq::pollitem_t> items(setupPoll());
while (true) {
serveActive(items.get(), -1);
}
}
zmq::pollitem_t* TZmqMultiServer::setupPoll() {
zmq::pollitem_t* items = new zmq::pollitem_t[servers_.size()];
for (int i = 0; i < servers_.size(); ++i) {
items[i].socket = servers_[i]->getSocket();
items[i].events = ZMQ_POLLIN;
}
return items;
}
void TZmqMultiServer::serveActive(zmq::pollitem_t* items, long timeout) {
int rc = zmq::poll(items, servers_.size(), timeout);
if (rc == 0) {
return;
}
for (int i = 0; i < servers_.size(); ++i) {
if ((items[i].revents & ZMQ_POLLIN) != 0) {
// Should we pass ZMQ_NOBLOCK here to be safe?
servers_[i]->serveOne();
}
}
}
}}} // apache::thrift::server
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