int anetAccept(char *err, int serversock, char *ip, int *port){	//世界人民大团结万岁    int fd;    struct sockaddr_in sa;    unsigned int saLen;    while(1) 	{        saLen = sizeof(sa);        fd = accept(serversock, (struct sockaddr*)&sa, &saLen);        if (fd == -1) {            if (errno == EINTR)                continue;            else {                anetSetError(err, "accept: %s\n", strerror(errno));                return ANET_ERR;            }        }        break;    }	    if (ip) strcpy(ip,inet_ntoa(sa.sin_addr));    if (port) *port = ntohs(sa.sin_port);	    return fd;

if ((flags = fcntl(fd, F_GETFL)) == -1) {        anetSetError(err, "fcntl(F_GETFL): %s\n", strerror(errno));        return ANET_ERR;    }    if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) == -1) {        anetSetError(err, "fcntl(F_SETFL,O_NONBLOCK): %s\n", strerror(errno));        return ANET_ERR;    }

int yes = 1;    if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &yes, sizeof(yes)) == -1)