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rpc_gen_spec.h
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// util
#ifndef RPC_TYPE1
# define RPC_TYPE1(name, type1) type_##name##_##type1
#endif
#ifndef RPC_TYPE2
# define RPC_TYPE2(name, type1, type2) type_##name##_##type1##_##type2
#endif
#ifndef RPC_TYPE3
# define RPC_TYPE3(name, type1, type2, type3) type_##name##_##type1##_##type2##_##type3
#endif
#ifdef _RPC_GEN_TYPE_
// type enum
# define RPC_BEGIN(name) namespace name { enum type_enum {
# define RPC_METHOD(rtype, name, type1, var1) RPC_TYPE1(name, type1),
# define RPC_METHOD2(rtype, name, type1, var1, type2, var2) RPC_TYPE2(name, type1, type2),
# define RPC_METHOD3(rtype, name, type1, var1, type2, var2, type3, var3) RPC_TYPE3(name, type1, type2, type3),
# define RPC_END(name) }; /* enum */ } /* namespace */
# include _RPC_GEN_TARGET_
# undef RPC_END
# undef RPC_METHOD3
# undef RPC_METHOD2
# undef RPC_METHOD1
# undef RPC_BEGIN
#endif
#ifdef _RPC_GEN_SERVER_
// handler prototypes
# define RPC_BEGIN(name) namespace name {
# define RPC_METHOD1(rtype, name, type1, var1) rtype name(type1 var1);
# define RPC_METHOD2(rtype, name, type1, var1, type2, var2) rtype name(type1 var1, type2 var2);
# define RPC_METHOD3(rtype, name, type1, var1, type2, var2, type3, var3) rtype name(type1 var1, type2 var2, type3 var3);
# define RPC_END(name) };
# include _RPC_GEN_TARGET_
# undef RPC_END
# undef RPC_METHOD3
# undef RPC_METHOD2
# undef RPC_METHOD1
# undef RPC_BEGIN
// rpc_server_t impl
# define RPC_BEGIN(name) \
namespace name { \
class name##_rpc_server_t : public rpc_server_t { \
public: \
name##_rpc_server_t(boost::asio::io_service& io_service, int server_port) \
: rpc_server_t(io_service, server_port) { \
initialize_handlers(); \
} \
private: \
void initialize_handlers() {
# define RPC_METHOD1(rtype, name, type1, var1) \
_handler_array[RPC_TYPE1(name, type1)] = [] \
(buffer_reader_t reader, buffer_writer_t writer) -> bool { \
int req_num; \
type1 var1; \
reader >> req_num >> var1; \
rtype result = name(var1); \
writer << sizeof(uint16_t) + sizeof(int) + sizeof(rtype); \
writer << static_cast<uint16_t>(RPC_TYPE1(name, type1)); \
writer << req_num; \
writer << result; \
return true; \
};
# define RPC_METHOD2(rtype, name, type1, var1, type2, var2) \
_handler_array[RPC_TYPE2(name, type1, type2)] = [] \
(buffer_reader_t reader, buffer_writer_t writer) -> bool { \
int req_num; \
type1 var1; \
type2 var2; \
reader >> req_num >> var1 >> var2; \
rtype result = name(var1, var2); \
writer << sizeof(uint16_t) + sizeof(int) + sizeof(rtype); \
writer << static_cast<uint16_t>(RPC_TYPE2(name, type1, type2)); \
writer << req_num; \
writer << result; \
return true; \
};
# define RPC_METHOD3(rtype, name, type1, var1, type2, var2, type3, var3) \
_handler_array[RPC_TYPE3(name, type1, type2, type3)] = [] \
(buffer_reader_t reader, buffer_writer_t writer) -> bool { \
int req_num; \
type1 var1; \
type2 var2; \
type3 var3; \
reader >> req_num >> var1 >> var2 >> var3; \
rtype result = name(var1, var2, var3); \
writer << sizeof(uint16_t) + sizeof(int) + sizeof(rtype); \
writer << static_cast<uint16_t>(RPC_TYPE3(name, type1, type2, type3)); \
writer << req_num; \
writer << result; \
return true; \
};
# define RPC_END(name) \
} /* initialize_handlers */ \
}; /* class */ \
} /* namespace */
# include _RPC_GEN_TARGET_
# undef RPC_END
# undef RPC_METHOD3
# undef RPC_METHOD2
# undef RPC_METHOD1
# undef RPC_BEGIN
#endif
#ifdef _RPC_GEN_CLIENT_
// rpc_client_t impl
# define RPC_BEGIN(name) \
namespace name { \
class name##_rpc_client_t : public rpc_client_t { \
public: \
name##_rpc_client_t(boost::asio::io_service& io_service) \
: rpc_client_t(io_service) { \
}
# define RPC_METHOD1(rtype, name, type1, var1) \
void name(type1 var1, type2 var2, boost::function<void (rtype)> callback) { \
buffer_writer_t writer; \
writer << sizeof(uint16_t) + sizeof(int) + sizeof(type1); \
writer << static_cast<uint16_t>(RPC_TYPE1(name, type1)); \
struct __callback_t : public general_callback_t { \
virtual void operator () (buffer_reader_t reader) { \
rtype result; \
reader >> result; \
_callback(result); \
} \
__callback_t(boost::function<void (rtype)> callback) \
: _callback(callback) {} \
boost::function<void (rtype)> _callback; \
}; \
int req_num = register_callback(general_callback_ptr( \
new __callback_t(callback))); \
writer << req_num << var1; \
_session->request_write(writer.buffer()); \
}
# define RPC_METHOD2(rtype, name, type1, var1, type2, var2) \
void name(type1 var1, type2 var2, boost::function<void (rtype)> callback) { \
buffer_writer_t writer; \
writer << sizeof(uint16_t) + sizeof(int) + sizeof(type1) + sizeof(type2); \
writer << static_cast<uint16_t>(RPC_TYPE2(name, type1, type2)); \
struct __callback_t : public general_callback_t { \
virtual void operator () (buffer_reader_t reader) { \
rtype result; \
reader >> result; \
_callback(result); \
} \
__callback_t(boost::function<void (rtype)> callback) \
: _callback(callback) {} \
boost::function<void (rtype)> _callback; \
}; \
int req_num = register_callback(general_callback_ptr( \
new __callback_t(callback))); \
writer << req_num << var1 << var2; \
_session->request_write(writer.buffer()); \
}
# define RPC_METHOD3(rtype, name, type1, var1, type2, var2, type3, var3) \
void name(type1 var1, type2 var2, type3 var3, boost::function<void (rtype)> callback) { \
buffer_writer_t writer; \
writer << sizeof(uint16_t) + sizeof(int) + sizeof(type1) + sizeof(type2) + sizeof(type3); \
writer << static_cast<uint16_t>(RPC_TYPE3(name, type1, type2, type3)); \
struct __callback_t : public general_callback_t { \
virtual void operator () (buffer_reader_t reader) { \
rtype result; \
reader >> result; \
_callback(result); \
} \
__callback_t(boost::function<void (rtype)> callback) \
: _callback(callback) {} \
boost::function<void (rtype)> _callback; \
}; \
int req_num = register_callback(general_callback_ptr( \
new __callback_t(callback))); \
writer << req_num << var1 << var2 << var3; \
_session->request_write(writer.buffer()); \
}
# define RPC_END(name) \
}; /* class */ \
} /* namespace */
# include _RPC_GEN_TARGET_
# undef RPC_END
# undef RPC_METHOD3
# undef RPC_METHOD2
# undef RPC_METHOD1
# undef RPC_BEGIN
#endif