wownero/contrib/epee/include/storages/levin_abstract_invoke2.h
rfree2monero 5ce4256e3d 2014 network limit 1.1 +utils +toc -doc -drmonero
Update of the PR with network limits

works very well for all speeds
(but remember that low download speed can stop upload
because we then slow down downloading of blockchain
requests too)

more debug options

fixed pedantic warnings in our code
should work again on Mac OS X and FreeBSD
fixed warning about size_t
tested on Debian, Ubuntu, Windows(testing now)

TCP options and ToS (QoS) flag
FIXED peer number limit
FIXED some spikes in ingress/download
FIXED problems when other up and down limit
2015-02-20 22:13:00 +01:00

289 lines
11 KiB
C++

// Copyright (c) 2006-2013, Andrey N. Sabelnikov, www.sabelnikov.net
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * 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.
// * Neither the name of the Andrey N. Sabelnikov 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 OWNER 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.
//
#pragma once
#include "portable_storage_template_helper.h"
#include <boost/utility/value_init.hpp>
#include "net/levin_base.h"
namespace epee
{
namespace net_utils
{
template<class t_arg, class t_result, class t_transport>
bool invoke_remote_command2(int command, const t_arg& out_struct, t_result& result_struct, t_transport& transport)
{
if(!transport.is_connected())
return false;
serialization::portable_storage stg;
out_struct.store(stg);
std::string buff_to_send, buff_to_recv;
stg.store_to_binary(buff_to_send);
int res = transport.invoke(command, buff_to_send, buff_to_recv);
if( res <=0 )
{
LOG_PRINT_RED("Failed to invoke command " << command << " return code " << res, LOG_LEVEL_1);
return false;
}
serialization::portable_storage stg_ret;
if(!stg_ret.load_from_binary(buff_to_recv))
{
LOG_ERROR("Failed to load_from_binary on command " << command);
return false;
}
result_struct.load(stg_ret);
return true;
}
template<class t_arg, class t_transport>
bool notify_remote_command2(int command, const t_arg& out_struct, t_transport& transport)
{
if(!transport.is_connected())
return false;
serialization::portable_storage stg;
out_struct.store(&stg);
std::string buff_to_send;
stg.store_to_binary(buff_to_send);
int res = transport.notify(command, buff_to_send);
if(res <=0 )
{
LOG_ERROR("Failed to notify command " << command << " return code " << res);
return false;
}
return true;
}
template<class t_arg, class t_result, class t_transport>
bool invoke_remote_command2(boost::uuids::uuid conn_id, int command, const t_arg& out_struct, t_result& result_struct, t_transport& transport)
{
typename serialization::portable_storage stg;
out_struct.store(stg);
std::string buff_to_send, buff_to_recv;
stg.store_to_binary(buff_to_send);
int res = transport.invoke(command, buff_to_send, buff_to_recv, conn_id);
if( res <=0 )
{
LOG_PRINT_L1("Failed to invoke command " << command << " return code " << res);
return false;
}
typename serialization::portable_storage stg_ret;
if(!stg_ret.load_from_binary(buff_to_recv))
{
LOG_ERROR("Failed to load_from_binary on command " << command);
return false;
}
result_struct.load(stg_ret);
return true;
}
template<class t_result, class t_arg, class callback_t, class t_transport>
bool async_invoke_remote_command2(boost::uuids::uuid conn_id, int command, const t_arg& out_struct, t_transport& transport, callback_t cb, size_t inv_timeout = LEVIN_DEFAULT_TIMEOUT_PRECONFIGURED)
{
typename serialization::portable_storage stg;
const_cast<t_arg&>(out_struct).store(stg);//TODO: add true const support to searilzation
std::string buff_to_send, buff_to_recv;
stg.store_to_binary(buff_to_send);
int res = transport.invoke_async(command, buff_to_send, conn_id, [cb, command](int code, const std::string& buff, typename t_transport::connection_context& context)->bool
{
t_result result_struct = AUTO_VAL_INIT(result_struct);
if( code <=0 )
{
LOG_PRINT_L1("Failed to invoke command " << command << " return code " << code);
cb(code, result_struct, context);
return false;
}
serialization::portable_storage stg_ret;
if(!stg_ret.load_from_binary(buff))
{
LOG_ERROR("Failed to load_from_binary on command " << command);
cb(LEVIN_ERROR_FORMAT, result_struct, context);
return false;
}
result_struct.load(stg_ret);
cb(code, result_struct, context);
return true;
}, inv_timeout);
if( res <=0 )
{
LOG_PRINT_L1("Failed to invoke command " << command << " return code " << res);
return false;
}
return true;
}
template<class t_arg, class t_transport>
bool notify_remote_command2(boost::uuids::uuid conn_id, int command, const t_arg& out_struct, t_transport& transport)
{
serialization::portable_storage stg;
out_struct.store(stg);
std::string buff_to_send, buff_to_recv;
stg.store_to_binary(buff_to_send);
int res = transport.notify(command, buff_to_send, conn_id);
if(res <=0 )
{
LOG_PRINT_RED_L0("Failed to notify command " << command << " return code " << res);
return false;
}
return true;
}
//----------------------------------------------------------------------------------------------------
//----------------------------------------------------------------------------------------------------
template<class t_owner, class t_in_type, class t_out_type, class t_context, class callback_t>
int buff_to_t_adapter(int command, const std::string& in_buff, std::string& buff_out, callback_t cb, t_context& context )
{
serialization::portable_storage strg;
if(!strg.load_from_binary(in_buff))
{
LOG_ERROR("Failed to load_from_binary in command " << command);
return -1;
}
boost::value_initialized<t_in_type> in_struct;
boost::value_initialized<t_out_type> out_struct;
static_cast<t_in_type&>(in_struct).load(strg);
int res = cb(command, static_cast<t_in_type&>(in_struct), static_cast<t_out_type&>(out_struct), context);
serialization::portable_storage strg_out;
static_cast<t_out_type&>(out_struct).store(strg_out);
if(!strg_out.store_to_binary(buff_out))
{
LOG_ERROR("Failed to store_to_binary in command" << command);
return -1;
}
return res;
}
template<class t_owner, class t_in_type, class t_context, class callback_t>
int buff_to_t_adapter(t_owner* powner, int command, const std::string& in_buff, callback_t cb, t_context& context)
{
serialization::portable_storage strg;
if(!strg.load_from_binary(in_buff))
{
LOG_ERROR("Failed to load_from_binary in notify " << command);
return -1;
}
boost::value_initialized<t_in_type> in_struct;
static_cast<t_in_type&>(in_struct).load(strg);
return cb(command, in_struct, context);
}
#define CHAIN_LEVIN_INVOKE_MAP2(context_type) \
int invoke(int command, const std::string& in_buff, std::string& buff_out, context_type& context) \
{ \
bool handled = false; \
return handle_invoke_map(false, command, in_buff, buff_out, context, handled); \
}
#define CHAIN_LEVIN_NOTIFY_MAP2(context_type) \
int notify(int command, const std::string& in_buff, context_type& context) \
{ \
bool handled = false; std::string fake_str;\
return handle_invoke_map(true, command, in_buff, fake_str, context, handled); \
}
#define CHAIN_LEVIN_INVOKE_MAP() \
int invoke(int command, const std::string& in_buff, std::string& buff_out, epee::net_utils::connection_context_base& context) \
{ \
bool handled = false; \
return handle_invoke_map(false, command, in_buff, buff_out, context, handled); \
}
#define CHAIN_LEVIN_NOTIFY_MAP() \
int notify(int command, const std::string& in_buff, epee::net_utils::connection_context_base& context) \
{ \
bool handled = false; std::string fake_str;\
return handle_invoke_map(true, command, in_buff, fake_str, context, handled); \
}
#define CHAIN_LEVIN_NOTIFY_STUB() \
int notify(int command, const std::string& in_buff, epee::net_utils::connection_context_base& context) \
{ \
return -1; \
}
#define BEGIN_INVOKE_MAP2(owner_type) \
template <class t_context> int handle_invoke_map(bool is_notify, int command, const std::string& in_buff, std::string& buff_out, t_context& context, bool& handled) \
{ \
typedef owner_type internal_owner_type_name;
#define HANDLE_INVOKE2(command_id, func, type_name_in, typename_out) \
if(!is_notify && command_id == command) \
{handled=true;return epee::net_utils::buff_to_t_adapter<internal_owner_type_name, type_name_in, typename_out>(this, command, in_buff, buff_out, boost::bind(func, this, _1, _2, _3, _4), context);}
#define HANDLE_INVOKE_T2(COMMAND, func) \
if(!is_notify && COMMAND::ID == command) \
{handled=true;return epee::net_utils::buff_to_t_adapter<internal_owner_type_name, typename COMMAND::request, typename COMMAND::response>(command, in_buff, buff_out, boost::bind(func, this, _1, _2, _3, _4), context);}
#define HANDLE_NOTIFY2(command_id, func, type_name_in) \
if(is_notify && command_id == command) \
{handled=true;return epee::net_utils::buff_to_t_adapter<internal_owner_type_name, type_name_in>(this, command, in_buff, boost::bind(func, this, _1, _2, _3), context);}
#define HANDLE_NOTIFY_T2(NOTIFY, func) \
if(is_notify && NOTIFY::ID == command) \
{handled=true;return epee::net_utils::buff_to_t_adapter<internal_owner_type_name, typename NOTIFY::request>(this, command, in_buff, boost::bind(func, this, _1, _2, _3), context);}
#define CHAIN_INVOKE_MAP2(func) \
{ \
int res = func(is_notify, command, in_buff, buff_out, context, handled); \
if(handled) \
return res; \
}
#define CHAIN_INVOKE_MAP_TO_OBJ2(obj) \
{ \
int res = obj.handle_invoke_map(is_notify, command, in_buff, buff_out, context, handled); \
if(handled) \
return res; \
}
#define CHAIN_INVOKE_MAP_TO_OBJ_FORCE_CONTEXT(obj, context_type) \
{ \
int res = obj.handle_invoke_map(is_notify, command, in_buff, buff_out, static_cast<context_type>(context), handled); \
if(handled) return res; \
}
#define END_INVOKE_MAP2() \
LOG_ERROR("Unkonown command:" << command); \
return LEVIN_ERROR_CONNECTION_HANDLER_NOT_DEFINED; \
}
}
}