小编Iva*_*res的帖子

我有一个阻塞套接字(至少它在下面的代码中出现):

    sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    if (sock < 0) {
            ERROR("%s: error opening socket", __func__);
            return (RESP_ERROR);
    }

    t.tv_sec = timeout;
    t.tv_usec = 0;

    int rf = fcntl(sock, F_GETFD);
    ERROR("fcntl ret=%d, ret & O_NONBLOCK = %d", rf, rf & O_NONBLOCK);

    if ((setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (char *)&t, sizeof (t)) < 0)
        || (setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (char *)&t, sizeof (t)))) {
            strerror_r(errno, err, 254);
            ERROR("%s: error on setsockopt -> %s", __func__, err);
            close(sock);
            return (RESP_ERROR);
    }

    rf = fcntl(sock, F_GETFD);
    ERROR("after …