// 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"
#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "net"
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 )
{
MERROR("Failed to invoke command " << command << " return code " << res);
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;
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;
stg.store_to_binary(buff_to_send);
int res = transport.notify(command, buff_to_send, conn_id);
if(res <=0 )
{
MERROR("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("Unknown command:" << command); \
return LEVIN_ERROR_CONNECTION_HANDLER_NOT_DEFINED; \
}
}
}
