错误C2280:'std :: thread :: thread(const std :: thread&)':尝试引用已删除的函数

我在尝试创建使用C++ 11标准线程的VC++静态库时遇到问题.

我目前有两个类,我能够声明并稍后在我的起始类(最后声明的)上定义一个线程.在此阶段,代码只是一个套接字侦听器,然后创建另一个类的对象来处理接受的每个客户端.这些子对象应该创建并行数据捕获,编码和传输所需的线程.

问题是:如果我在我的另一个类上声明一个std :: thread,即使我完全像在我的start类上那样,无论如何,我在构建时遇到这个错误 error C2280: 'std::thread::thread(const std::thread &)' : attempting to reference a deleted function [...]\vc\include\functional 1124 1

我能够解决这个错误的唯一方法是std::thread根据我想要它做的事情,根本不在后一个类中声明一个对象,这是不可能的.

我正在使用VS2013,我的来源是:

stdafx.h中

#pragma once
#include "targetver.h"
#define WIN32_LEAN_AND_MEAN             // Exclude rarely-used stuff from Windows headers
#include 
#include 
#include 
#include 
#include 
#include 

StreamServer.h

#pragma once
#define DEFAULT_BUFLEN 65535
#define DEFAULT_PORT "5649"

class StreamServerClient
{
public:
    bool* terminate;
    //std::thread client;     //If I comment this line out, it builds just fine.
    void DoNothing();
    StreamServerClient(SOCKET clientSock, bool* ptTerm);
    StreamServerClient();
    ~StreamServerClient();
};

class StreamServer
{
public:
    bool terminate;
    std::thread Listener;
    std::vector clients;
    void CreateClient(SOCKET, bool*);
    void Listen();
    StreamServer();
    ~StreamServer();
};

StreamServer.cpp

#include "stdafx.h"
#include "StreamServer.h"

StreamServerClient::StreamServerClient(SOCKET clientSock, bool* ptTerm)
{
    terminate = ptTerm;
    //client = std::thread(&StreamServerClient::DoNothing, this);     //Same thing as the declaration
}

StreamServerClient::StreamServerClient()
{
    *terminate = false;
    //client = std::thread(&StreamServerClient::DoNothing, this);     //Same thing as the declaration
}

void StreamServerClient::DoNothing()
{
}

StreamServerClient::~StreamServerClient()
{
}

void StreamServer::Listen()
{
    {...}
    do {
        clients.push_back(StreamServerClient::StreamServerClient(accept(listenSock, NULL, NULL), &terminate));
        std::cout << "accepted a client!" << std::endl;
    } while (!terminate);
}

StreamServer::StreamServer()
{
    terminate = false;
    Listener = std::thread(&StreamServer::Listen, this);
    Listener.detach();
}

StreamServer::~StreamServer()
{
}

Dietmar Kühl.. 11

std::thread无法复制类型的对象.您最好只是初始化成员初始化列表中的对象:

class StreamServerClient
{
public:
    bool* terminate;
    std::thread client;
    void DoNothing();
    StreamServerClient(SOCKET clientSock, bool* ptTerm);
    StreamServerClient(StreamServerClient&& other);
    ~StreamServerClient();
};

StreamServerClient::StreamServerClient(SOCKET clientSock, bool* ptTerm)
    : terminate(ptTerm)
    , client(std::thread(&StreamServerClient::DoNothing, this)) {
}
StreamServerClient::StreamServerClient(StreamServerClient&& other)
    : terminate(other.terminate)
    , client(std::move(other.client)) {
}

我省略了默认构造函数(请注意,您的版本不起作用,因为它试图为取消引用未初始化指针的结果赋值),而是添加了一个移动构造函数:std::vector<...>当提供某些内容时,将推回到此构造函数时看起来像一个临时的东西(即,某些东西是临时的或者看起来像是一个,例如,使用std::move()).