c++11, high performance, simple, easy to use rpc framework.
It's so easy to love RPC.
Modern C++开发的RPC库就是这么简单好用！
Here are the performance test result
server code
#include "rpc_server.h"
using namespace rest_rpc;
using namespace rpc_service;
struct dummy{
int add(connection* conn, int a, int b) { return a + b; }
};
std::string translate(connection* conn, const std::string& orignal) {
std::string temp = orignal;
for (auto& c : temp) {
c = std::toupper(c);
}
return temp;
}
void hello(connection* conn, const std::string& str) {
std::cout << "hello " << str << std::endl;
}
int main() {
rpc_server server(9000, 4);
dummy d;
server.register_handler("add", &dummy::add, &d);
server.register_handler("translate", translate);
server.register_handler("hello", hello);
server.run();
std::string str;
std::cin >> str;
}
通用的rpc_client用法_
#include <iostream>
#include <rpc_client.hpp>
#include <chrono>
#include <fstream>
#include "codec.h"
using namespace rest_rpc;
using namespace rest_rpc::rpc_service;
void test_add() {
try{
rpc_client client("127.0.0.1", 9000);
bool r = client.connect();
if (!r) {
std::cout << "connect timeout" << std::endl;
return;
}
auto result = client.call<int>("add", 1, 2);
std::cout << result << std::endl;
}
catch (const std::exception& e){
std::cout << e.what() << std::endl;
}
}
void test_translate() {
try {
rpc_client client("127.0.0.1", 9000);
bool r = client.connect();
if (!r) {
std::cout << "connect timeout" << std::endl;
return;
}
auto result = client.call<std::string>("translate", "hello");
std::cout << result << std::endl;
}
catch (const std::exception& e) {
std::cout << e.what() << std::endl;
}
}
void test_hello() {
try {
rpc_client client("127.0.0.1", 9000);
bool r = client.connect();
if (!r) {
std::cout << "connect timeout" << std::endl;
return;
}
client.call("hello", "purecpp");
}
catch (const std::exception& e) {
std::cout << e.what() << std::endl;
}
}
int main() {
test_add();
test_translate();
test_hello();
return 0;
}
如果希望client使用的时候更加安全，可以自己对通用的rpc_client做一个简单的封装，就可以更安全的使用接口了，具体可以参考example中的app_client. 在app_client中不需要输入rpc服务名称，需要输入的参数也做了类型限定，可以保证不会传入错误的参数。
app_client的用法
#include <iostream>
#include "client.hpp"
void test_client() {
client cl("127.0.0.1", 9000);
bool r = cl.connect();
if (!r) {
std::cout << "connect failed" << std::endl;
return;
}
try {
int result = cl.add(2, 3);
cl.hello("purecpp");
auto str = cl.translate("purecpp");
auto name = cl.get_person_name({ 1, "tom", 20 });
auto p = cl.get_person();
std::cout << result << '\n';
std::cout << str << '\n';
std::cout << name << '\n';
std::cout << p.name << '\n';
{
auto future = cl.async_add(4, 5);
if (future.wait_for(std::chrono::milliseconds(50)) == std::future_status::timeout) {
std::cout << "timeout" << std::endl;
}
else {
auto result = future.get().as<int>();
std::cout << result << std::endl;
}
}
{
auto future = cl.async_translate("modern c++");
if (future.wait_for(std::chrono::milliseconds(50)) == std::future_status::timeout) {
std::cout << "timeout" << std::endl;
}
else {
auto result = future.get().as<std::string>();
std::cout << result << std::endl;
}
}
}
catch (const std::exception& ex) {
std::cout << ex.what() << std::endl;
}
}
int main() {
test_client();
std::string str;
std::cin >> str;
}
除了简单好用，没什么多余的要说的。
make an IDL tool to genrate the client code.
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