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Description

rpclib is a RPC library for C++, providing both a client and server implementation. It is built using modern C++14, and as such, requires a recent compiler. Using the library, you can:

- Expose functions of your program to be called via RPC with minimal boilerplate - Or call function through RPC with a syntax that is as natural as C++ permits (without code generation)

Code Quality Rank: L1
Programming language: C++
License: GNU General Public License v3.0 or later
Latest version: v2.2.1

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README

rpclib MIT Build Status Build status Coverage Status Coverity Gitter

waffle

rpclib is a RPC library for C++, providing both a client and server implementation. It is built using modern C++14, and as such, requires a recent compiler. Main highlights:

  • Expose functions of your program to be called via RPC (from any language implementing msgpack-rpc)
  • Call functions through RPC (of programs written in any language)
  • No IDL to learn
  • No code generation step to integrate in your build, just C++

Look&feel

Server

#include <iostream>
#include "rpc/server.h"

void foo() {
    std::cout << "foo was called!" << std::endl;
}

int main(int argc, char *argv[]) {
    // Creating a server that listens on port 8080
    rpc::server srv(8080);

    // Binding the name "foo" to free function foo.
    // note: the signature is automatically captured
    srv.bind("foo", &foo);

    // Binding a lambda function to the name "add".
    srv.bind("add", [](int a, int b) {
        return a + b;
    });

    // Run the server loop.
    srv.run();

    return 0;
}

When srv.run() is called, rpclib starts the server loop which listens to incoming connections and tries to dispatch calls to the bound functions. The functions are called from the thread where run was called from. There is also async_run that spawns worker threads and returns immediately.

Client

#include <iostream>
#include "rpc/client.h"

int main() {
    // Creating a client that connects to the localhost on port 8080
    rpc::client client("127.0.0.1", 8080);

    // Calling a function with paramters and converting the result to int
    auto result = client.call("add", 2, 3).as<int>();
    std::cout << "The result is: " << result << std::endl;
    return 0;
}

Status

All planned 1.0.0 features are done and tested; the current state is production-ready.

Who uses rpclib?

This list is updated as I learn about more people using the library; let me know if you don't want your project listed here.

Thanks

rpclib builds on the efforts of fantastic C++ projects. In no particular order:

Shoutouts to


*Note that all licence references and agreements mentioned in the rpclib README section above are relevant to that project's source code only.