monero/contrib/epee/demo/demo_levin_server/demo_levin_server.cpp

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// Copyright (c) 2014, The Monero Project
//
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// All rights reserved.
//
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// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
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//
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// 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.
//
// Parts of this file are originally copyright (c) 2006-2013, Andrey N. Sabelnikov
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#include "stdafx.h"
#include "demo_levin_server.h"
#include "console_handler.h"
template<class t_request>
bool communicate(net_utils::boosted_levin_async_server& transport, int id, t_request& req, const std::string& ip, const std::string& port, bool use_async)
{
if(use_async)
{
//IMPORTANT: do not pass local parameters from stack by reference! connect_async returns immediately, and callback will call in any thread later
transport.connect_async(ip, port, 10000, [&transport, id, req, ip, port](net_utils::connection_context_base& ctx, const boost::system::error_code& ec_)
{
if(!!ec_)
{
LOG_ERROR("Failed to connect to " << ip << ":" << port);
}else
{//connected ok!
epee::net_utils::async_invoke_remote_command2<demo::COMMAND_EXAMPLE_1::response>(ctx.m_connection_id, id, req, transport.get_config_object(), [&transport, ip, port](int res_code, demo::COMMAND_EXAMPLE_1::response& rsp, net_utils::connection_context_base& ctx)
{
if(res_code < 0)
{
LOG_ERROR("Failed to invoke to " << ip << ":" << port);
}else
{//invoked ok
CHECK_AND_ASSERT_MES(rsp.m_success, false, "wrong response");
CHECK_AND_ASSERT_MES(rsp.subs.size()==1, false, "wrong response");
CHECK_AND_ASSERT_MES(rsp.subs.front() == demo::get_test_data(), false, "wrong response");
LOG_PRINT_GREEN("Client COMMAND_EXAMPLE_1 async invoked ok", LOG_LEVEL_0);
}
transport.get_config_object().close(ctx.m_connection_id);
return true;
});
LOG_PRINT_GREEN("Client COMMAND_EXAMPLE_1 async invoke requested", LOG_LEVEL_0);
}
});
}else
{
net_utils::connection_context_base ctx = AUTO_VAL_INIT(ctx);
bool r = transport.connect(ip, port, 10000, ctx);
CHECK_AND_ASSERT_MES(r, false, "failed to connect to " << ip << ":" << port);
demo::COMMAND_EXAMPLE_1::response rsp = AUTO_VAL_INIT(rsp);
LOG_PRINT_GREEN("Client COMMAND_EXAMPLE_1 sync invoke requested", LOG_LEVEL_0);
r = epee::net_utils::invoke_remote_command2(ctx.m_connection_id, id, req, rsp, transport.get_config_object());
CHECK_AND_ASSERT_MES(r, false, "failed to invoke levin request");
CHECK_AND_ASSERT_MES(rsp.m_success, false, "wrong response");
CHECK_AND_ASSERT_MES(rsp.subs.size()==1, false, "wrong response");
CHECK_AND_ASSERT_MES(rsp.subs.front() == demo::get_test_data(), false, "wrong response");
transport.get_config_object().close(ctx.m_connection_id);
LOG_PRINT_GREEN("Client COMMAND_EXAMPLE_1 sync invoked ok", LOG_LEVEL_0);
}
return true;
}
int main(int argc, char* argv[])
{
TRY_ENTRY();
string_tools::set_module_name_and_folder(argv[0]);
//set up logging options
log_space::get_set_log_detalisation_level(true, LOG_LEVEL_2);
log_space::log_singletone::add_logger(LOGGER_CONSOLE, NULL, NULL);
log_space::log_singletone::add_logger(LOGGER_FILE,
log_space::log_singletone::get_default_log_file().c_str(),
log_space::log_singletone::get_default_log_folder().c_str());
LOG_PRINT("Demo server starting ...", LOG_LEVEL_0);
demo::demo_levin_server srv;
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start_default_console(&srv, "#");
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std::string bind_param = "0.0.0.0";
std::string port = "12345";
if(!srv.init(port, bind_param))
{
LOG_ERROR("Failed to initialize srv!");
return 1;
}
srv.run();
size_t c = 1;
while (!srv.is_stop())
{
demo::COMMAND_EXAMPLE_1::request req;
req.sub = demo::get_test_data();
bool r = communicate(srv.get_server(), demo::COMMAND_EXAMPLE_1::ID, req, "127.0.0.1", port, (c%2 == 0));
misc_utils::sleep_no_w(1000);
++c;
}
bool r = srv.wait_stop();
CHECK_AND_ASSERT_MES(r, 1, "failed to wait server stop");
srv.deinit();
LOG_PRINT("Demo server stoped.", LOG_LEVEL_0);
return 1;
CATCH_ENTRY_L0("main", 1);
}
/************************************************************************/
/* */
/************************************************************************/
namespace demo
{
bool demo_levin_server::init(const std::string& bind_port, const std::string& bind_ip)
{
m_net_server.get_config_object().m_pcommands_handler = this;
LOG_PRINT_L0("Binding on " << bind_ip << ":" << bind_port);
return m_net_server.init_server(bind_port, bind_ip);
}
bool demo_levin_server::run()
{
m_stop = false;
//here you can set worker threads count
int thrds_count = 4;
m_net_server.get_config_object().m_invoke_timeout = 10000;
m_net_server.get_config_object().m_pcommands_handler = this;
//go to loop
LOG_PRINT("Run net_service loop( " << thrds_count << " threads)...", LOG_LEVEL_0);
if(!m_net_server.run_server(thrds_count, false))
{
LOG_ERROR("Failed to run net tcp server!");
}
LOG_PRINT("net_service loop stopped.", LOG_LEVEL_0);
return true;
}
bool demo_levin_server::deinit()
{
return m_net_server.deinit_server();
}
bool demo_levin_server::send_stop_signal()
{
m_net_server.send_stop_signal();
return true;
}
int demo_levin_server::handle_command_1(int command, COMMAND_EXAMPLE_1::request& arg, COMMAND_EXAMPLE_1::response& rsp, const net_utils::connection_context_base& context)
{
CHECK_AND_ASSERT_MES(arg.sub == demo::get_test_data(), false, "wrong request");
rsp.m_success = true;
rsp.subs.push_back(arg.sub);
LOG_PRINT_GREEN("Server COMMAND_EXAMPLE_1 ok", LOG_LEVEL_0);
return 1;
}
int demo_levin_server::handle_command_2(int command, COMMAND_EXAMPLE_2::request& arg, COMMAND_EXAMPLE_2::response& rsp, const net_utils::connection_context_base& context)
{
return 1;
}
int demo_levin_server::handle_notify_1(int command, COMMAND_EXAMPLE_1::request& arg, const net_utils::connection_context_base& context)
{
return 1;
}
int demo_levin_server::handle_notify_2(int command, COMMAND_EXAMPLE_2::request& arg, const net_utils::connection_context_base& context)
{
return 1;
}
}