我正在尝试使用C ++制作Linux tcp服务器应用程序。我在每个客户端使用线程,并在线程中从客户端套接字接收recv数据,但在recv上却收到了sigabrt。
我试图将缓冲区更改为memset,但失败了。然后,我尝试从线程外部创建缓冲区,但它也失败了。首先,我以为recv函数是一个问题,但是memset和简单的内存更改(例如buffer [0] = 0;也变得很辛辣。
void TcpServer::connectAction()
{
while (is_started) {
// Listen new connection from socket
if (listen(relay_socket, max_client) < 0) {
onError("Cannot listen from socket");
break;
}
// Accept connection from socket
sockaddr_in client_address_in;
int client_address_size = sizeof(client_address_in);
int client_socket = accept(relay_socket, reinterpret_cast<sockaddr*>(&client_address_in),
reinterpret_cast<socklen_t*>(&client_address_size));
if(client_socket < 0) {
onWarning("Client socket accept failed");
continue;
}
sockaddr *client_address = reinterpret_cast<sockaddr*>(&client_address_in);
clients[client_socket] = *client_address;
onNewClient(client_socket, *client_address);
thread client_thread(&TcpServer::listenAction, this, client_socket);
}
}
void TcpServer::listenAction(int client_socket)
{
while (is_started) {
uint8_t buffer[1024];
// This line gets SIGABRT
memset(&buffer, 0, 1024);
if(recv(client_socket, buffer, sizeof(buffer), 0) > 0)
onPayloadReceived(client_socket, reinterpret_cast<uint8_t*>(buffer));
}
}
答案 0 :(得分:0)
我认为您应该detach
线程,因为这会导致SIGABRT。
所以,进入主线程,在
之后 thread client_thread(&TcpServer::listenAction, this, client_socket);
行,放在client_thread.detach();
原因是线程的析构函数将检查线程是连接还是分离。如果都不成立,它将调用std::terminate()
(这会导致中止)。
(因此问题与在客户端线程上访问buffer
无关)