C++ MsgPack:链接器错误

Question

我正在尝试编译message (http://msgpack.org/)示例代码，并继续获取这些错误，而这些错误是我无法理解的：

g++ -o"MsgPack2" ./src/MsgPack2.o -lmsgpack -lmsgpackc

/src/msgPack2.o:在函数main': /mnt/eoh/workspace/MsgPack2/Debug/../src/MsgPack2.cpp:38: undefined reference tomsgpack::rpc::server::listen(std::basicstring

&，‘./src/MsgPack2.o: In functionloop': /usr/local/include/msgpack/rpc/loop.h:30: undefined reference tomp::wavy::loop::loop()’./src/MsgPack2.o: In functionbase': /usr/local/include/msgpack/rpc/server.h:59: undefined reference tomsgpack::rpc::server::server(msgpack::rpc::loop)‘/usr/local/functionbase': /usr/local/include/msgpack/rpc/server.h:59: undefined reference tomsgpack：：rpc：：server：：server(msgpack：：rpc：：loop)’/msgpack/rpc/server.h:59:未定义引用tomsgpack::rpc::server::serve(msgpack::rpc::dispatcher\*)' /usr/local/include/msgpack/rpc/server.h:59: undefined reference tomsgpack::rpc::server::~server()‘./src/MsgPack2.o: In functionD7<‘./src/MsgPack2.o: In functionmyserver::dispatch(msgpack::rpc::request)': /mnt/eoh/workspace/MsgPack2/Debug/../src/MsgPack2.cpp:14: undefined reference tomsgpack::rpc::request::method()’/mnt/eoh/workspace/MsgPack2/Debug/../src/MsgPack2.cpp:18:未定义的引用tomsgpack::rpc::request::params()' ./src/MsgPack2.o: In functionmsgpack::rpc::loop_util::run(unsigned long)：/usr/tomsgpack::rpc::request::params()' ./src/MsgPack2.o: In functionmsgpack：：rpc：：loop_util：：run(unsigned/include/msgpack/rpc/loop_util.h:34:未定义引用tomsgpack::rpc::session\_pool::get\_loop()' /usr/local/include/msgpack/rpc/loop\_util.h:34: undefined reference tomp::wavy::loop::run(unsigned long) ./src/MsgPack2.o: In functionvoid msgpack::rpc::request::call(int&, msgpack::type::nil&)': /usr/local/include/msgpack/rpc/request.h:119: undefined reference tomsgpack::rpc::request::is_sent() const‘/usr/functionvoid msgpack::rpc::request::call(int&, msgpack::type::nil&)': /usr/local/include/msgpack/rpc/request.h:119: undefined reference tomsgpack：：rpc：：request：：is_sent()/functionvoid msgpack::rpc::request::call(int&, msgpack::type::nil&)': /usr/local/include/msgpack/rpc/request.h:119: undefined reference tomsgpack：：rpc：：request：：is_sent()/msgpack/rpc/request.h:122:未定义引用tomsgpack::rpc::request::get\_msgid() const' /usr/local/include/msgpack/rpc/request.h:125: undefined reference tomsgpack::rpc::request::send_data(msgpack::sbuffer)’./src/MsgPack2.o:函数void msgpack::rpc::request::call(msgpack::type::nil&, unsigned char&)': /usr/local/include/msgpack/rpc/request.h:119: undefined reference tomsgpack：：rpc：() const‘/usr/local/include/msgpack/rpc/request.h:122:未定义的引用tomsgpack::rpc::request::get\_msgid() const' /usr/local/include/msgpack/rpc/request.h:125: undefined reference tomsgpack::rpc::request::send_data(msgpack::sbuffer)’./src/MsgPack2.o: In functionvoid msgpack::rpc::request::call, std::allocator > (msgpack::type::nil&, std::basic\_string, std::allocator >&)': /usr/local/include/msgpack/rpc/request.h:119: undefined reference tomsgpack::rpc::request::is_sent() const‘/usr/functionvoid msgpack::rpc::request::call, std::allocator > (msgpack::type::nil&, std::basic\_string, std::allocator >&)': /usr/local/include/msgpack/rpc/request.h:119: undefined reference tomsgpack：：rpc：：request：：is_sent()/include/msgpack/rpc/request.h:122:未定义的对msgpack::rpc::request::get\_msgid() const' /usr/local/include/msgpack/rpc/request.h:125: undefined reference tomsgpack的引用：：rpc：/src/msgPack2.o:在function\_\_shared\_count': /usr/include/c++/4.5/tr1/shared\_ptr.h:121: undefined reference tomp::wavy::loop::~loop()‘./src/MsgPack2.o:在functionstd::tr1::\_Sp\_deleter::operator()(mp::wavy::loop\*) const': /usr/include/c++/4.5/tr1/shared\_ptr.h:99: undefined reference tomp::wavy::loop::~loop()’中，collect2: ld返回一个退出状态：*_ MsgPack2 Error 1

这是密码：

#include <msgpack/rpc/server.h>

class myserver : public msgpack::rpc::server::base {
public:
    void add(msgpack::rpc::request req, int a1, int a2)
    {
            req.result(a1 + a2);
    }

public:
    void dispatch(msgpack::rpc::request req)
    try {
            std::string method;
            req.method().convert(&method);

            if(method == "add") {
                    msgpack::type::tuple<int, int> params;
                    req.params().convert(&params);
                    add(req, params.get<0>(), params.get<1>());

            } else {
                    req.error(msgpack::rpc::NO_METHOD_ERROR);
            }

    } catch (msgpack::type_error& e) {
            req.error(msgpack::rpc::ARGUMENT_ERROR);
            return;

    } catch (std::exception& e) {
            req.error(std::string(e.what()));
            return;
    }
};

int main(void)
{
    myserver svr;
    svr.instance.listen("127.0.0.1", 80800);
    svr.instance.run(4);  // run 4 threads

    return 0;
}

如果有人有任何想法，我们将不胜感激。

事先非常感谢，

Answer 1

你需要-lmsgpack-rpc。

附带注意：80800不是一个有效的端口。