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// Copyright (c) 2016-2019, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "zmq_server.h"
namespace cryptonote
{
namespace rpc
{
ZmqServer::ZmqServer(RpcHandler& h) :
handler(h),
stop_signal(false),
running(false),
context(DEFAULT_NUM_ZMQ_THREADS) // TODO: make this configurable
{
}
ZmqServer::~ZmqServer()
{
}
void ZmqServer::serve()
{
while (1)
{
try
{
zmq::message_t message;
if (!rep_socket)
{
throw std::runtime_error("ZMQ RPC server reply socket is null");
}
while (rep_socket->recv(&message))
{
std::string message_string(reinterpret_cast<const char *>(message.data()), message.size());
MDEBUG(std::string("Received RPC request: \"") + message_string + "\"");
std::string response = handler.handle(message_string);
zmq::message_t reply(response.size());
memcpy((void *) reply.data(), response.c_str(), response.size());
rep_socket->send(reply);
MDEBUG(std::string("Sent RPC reply: \"") + response + "\"");
}
}
catch (const boost::thread_interrupted& e)
{
MDEBUG("ZMQ Server thread interrupted.");
}
catch (const zmq::error_t& e)
{
MERROR(std::string("ZMQ error: ") + e.what());
}
boost::this_thread::interruption_point();
}
}
bool ZmqServer::addIPCSocket(std::string address, std::string port)
{
MERROR("ZmqServer::addIPCSocket not yet implemented!");
return false;
}
bool ZmqServer::addTCPSocket(std::string address, std::string port)
{
try
{
std::string addr_prefix("tcp://");
rep_socket.reset(new zmq::socket_t(context, ZMQ_REP));
rep_socket->setsockopt(ZMQ_RCVTIMEO, &DEFAULT_RPC_RECV_TIMEOUT_MS, sizeof(DEFAULT_RPC_RECV_TIMEOUT_MS));
if (address.empty())
address = "*";
if (port.empty())
port = "*";
std::string bind_address = addr_prefix + address + std::string(":") + port;
rep_socket->bind(bind_address.c_str());
}
catch (const std::exception& e)
{
MERROR(std::string("Error creating ZMQ Socket: ") + e.what());
return false;
}
return true;
}
void ZmqServer::run()
{
running = true;
run_thread = boost::thread(boost::bind(&ZmqServer::serve, this));
}
void ZmqServer::stop()
{
if (!running) return;
stop_signal = true;
run_thread.interrupt();
run_thread.join();
running = false;
return;
}
} // namespace cryptonote
} // namespace rpc
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