分割错误CORBA C ++ [英] Segmentation fault CORBA C++

问题描述

我正在尝试建立一个CORBA应用程序，它有以下IDL接口：

I am trying to build a CORBA application, which has the following IDL interface:

module Chat {
exception SesionNoIniciada{};
exception UsuarioNoRegistrado{};
exception ErrorServidor{};
exception SesionYaIniciada{};

interface Cliente{
    readonly attribute string nombre;

    oneway void nuevaSolicitudDeAmistad(in string c); //devuelve void, parametro string/char*
    oneway void actualizarListaAmigos();
    oneway void nuevoMensaje(in Cliente usuario, in string men);
};

typedef sequence<string> nombres;
typedef sequence<Cliente> clientes;

interface Servidor{
    nombres iniciarSesion(in Cliente usuario, in string pass) raises (UsuarioNoRegistrado, SesionYaIniciada);
    void cerrarSesion(in Cliente usuario, in string pass) raises (SesionNoIniciada);

    nombres getUsuariosRegistrados(in Cliente usuario, in string pass, in string nombre) raises (SesionNoIniciada);
    nombres getAmigos(in Cliente usuario, in string pass) raises (SesionNoIniciada);
    clientes getAmigosConectados(in Cliente usuario, in string pass) raises (SesionNoIniciada);
    void nuevaSolicitudDeAmistad(in Cliente amigo1, in string pass, in string amigo2) raises (UsuarioNoRegistrado, SesionNoIniciada);
    void aceptarSolicitudDeAmistad(in Cliente amigo1, in string pass, in string amigo2) raises (UsuarioNoRegistrado, SesionNoIniciada);
    void rechazarSolicitudDeAmistad(in Cliente amigo1, in string pass, in string amigo2) raises (UsuarioNoRegistrado, SesionNoIniciada);
    void eliminarAmistad(in Cliente amigo1, in string pass, in string amigo2) raises (UsuarioNoRegistrado, SesionNoIniciada);
};
};

以下方法在返回行中给我一个分段错误：

The following method is giving me a segmentation fault in the return line:

nombres* Servidor_i::getAmigos(Cliente_ptr usuario, const char* pass){

vector<string> aux;
nombres_var result;
Cliente_ptr cliente;

try{
    aux=bd.listarAmigos(usuario->nombre()); //Gets names from DB (currently 0)
    result = new nombres(aux.size());
    for(int i=0; i<aux.size(); i++) //This for is not being executed, since size is 0
        result[i] = aux.at(i).c_str();
} catch(ErrorBD& e){
    throw ErrorServidor();
}
cout << "Ending" << endl;
return result._retn();
}

我认为这将是与动态内存释放相关的东西，但我不是用于CORBA，所以我不确定我是否以正确的方式使用数据类型。

I think it will be something related to dynamic memory freeing, but I am not used to CORBA yet, so I'm not sure if I am using the data types in a proper way.

推荐答案

我不可能找到我的代码是什么错误，并产生我所说的分段错误;我想到了一个替代方法，我可以解决我的问题：我已经重建了IDL接口，以便该函数有一个'out'参数，这允许我返回一个序列没有任何问题。

Since it was impossible for me to find out what was wrong with my code, and generating the segmentation fault I have spoken about; I thought of an alternative way in which I could solve my problem: I have rebuilt the IDL interface so that the function has an 'out' parameter which allows me to return a sequence without any kind of problem.

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