yaLanTingLibs

A Collection of C++20 libraries, include struct_pack, struct_json, coro_rpc and async_simple

yaLanTingLibs is a collection of C++20 libraries, now it contains struct_pack, struct_json, coro_rpc and async_simple, more and more cool libraries will be added into yaLanTingLibs(such as http.) in the future.

The target of yaLanTingLibs: provide very easy and high performance C++20 libraries for C++ developers, it can help to quickly build high performance applications.

OS (Compiler Version)	Status
Ubuntu 22.04 (clang 14.0.0)
Ubuntu 22.04 (gcc 11.2.0)
macOS Monterey 12 (AppleClang 14.0.0.14000029)
Windows Server 2022 (MSVC 19.33.31630.0)

coro_rpc

Very easy-to-use, coroutine-based, high performance rpc framework with C++20, more than 2000w qps in echo scene. coro_rpc is a header only library.

You can finish a rpc server and rpc client in 5 minutes!

English Introduction | 中文简介

English API(TODO) | 中文API

Talk of coro_rpc on purecpp conference.

Vedio on purecpp conference, start from 04:55:08 of the vedio record.

quick example

1.define a rpc function as a local normal function.

// rpc_service.hpp
inline std::string echo(std::string str) { return str; }

2.register rpc function and start a server

#include "rpc_service.hpp"
#include <coro_rpc/coro_rpc_server.hpp>

int main() {
  coro_rpc_server server(/*thread_num =*/10, /*port =*/9000);
  server.register_handler<echo>();
  server.start();
}

3.rpc client call rpc service

#include "rpc_service.hpp"
#include <coro_rpc/coro_rpc_client.hpp>

Lazy<void> test_client() {
  coro_rpc_client client;
  co_await client.connect("localhost", /*port =*/"9000");

  auto r = co_await client.call<echo>("hello coro_rpc"); //传参数调用rpc函数
  std::cout << r.result.value() << "\n"; //will print "hello coro_rpc"
}

int main() {
  syncAwait(test_client());
}

More examples here.

struct_pack

Based on compile-time reflection, very easy to use, high performance serialization library, struct_pack is a header only library, it is used by coro_rpc now.

Only one line code to finish serialization and deserialization, 10-50x faster than protobuf.

English Introduction | 中文简介

English API(TODO) | 中文API

(Slides) A Faster Serialization Library Based on Compile-time Reflection and C++ 20 of struct_pack on CppCon2022

Slides of struct_pack on purecpp conference.

(Vedio) A Faster Serialization Library Based on Compile-time Reflection and C++ 20 on cppcon2022

Vedio on purecpp conference, start from 01:32:20 of the vedio record.

quick example

struct person {
  int64_t id;
  std::string name;
  int age;
  double salary;
};

person person1{.id = 1, .name = "hello struct pack", .age = 20, .salary = 1024.42};

// one line code serialize
std::vector<char> buffer = struct_pack::serialize(person1);

// one line code deserialization
auto person2 = deserialize<person>(buffer);

See more examples here.

struct_json

reflection-based json lib, very easy to do struct to json and json to struct.

quick example

#include "struct_json/json_reader.h"
#include "struct_json/json_writer.h"

struct person {
  std::string name;
  int age;
};
REFLECTION(person, name, age);

int main() {
  person p{.name = "tom", .age = 20};
  std::string str;
  struct_json::to_json(p, str); // {"name":"tom","age":20}

  person p1;
  struct_json::from_json(p1, str);
}

async_simple

A C++ 20 coroutine library offering simple, light-weight and easy-to-use components to write asynchronous codes. See async_simple

Quick Start of coro_rpc

• clone repo

git clone https://github.com/alibaba/yalantinglibs.git

• build with cmake

mkdir build && cd build
cmake ..
make -j

• run tests

cd tests
ctest .

Benchmark

options:

./benchmark_client [threads] [client_pre_thread] [pipeline_size] [host] [port] [test_data_path] [test_time] [warm_up_time]

Build Options

option	description	default
CMAKE_BUILD_TYPE	build type	Release
BUILD_WITH_LIBCXX	Build with libc++	OFF
USE_CONAN	Use conan package manager to handle dependencies	OFF
ENABLE_SSL	Enable ssl support	OFF
ENABLE_IO_URING	Enable io_uring support	OFF

Dependencies

• doctest
• asio
• openssl (optional)
• async_simple
• iguana

Currently, asio and frozen are put in thirdparty folder. doctest is put in tests folder.

How to generate document

For English document, run

doxygen Doxyfile

All files generated in docs/en.

For Chinese document, run

doxygen Doxyfile_cn

All files generated in docs/cn.

How to Contribute

1. Create an issue in the issue template.
2. Run tests and git-clang-format HEAD^ locally for the change.
3. Create a PR, fill in the PR template.
4. Choose one or more reviewers from contributors: (e.g., qicosmos, poor-circle, PikachuHyA).
5. Get approved and merged.

Discussion group

DingTalk group

License

yaLanTingLibs is distributed under the Apache License (Version 2.0) This product contains various third-party components under other open-source licenses. See the NOTICE file for more information.