C++ (Cpp) io_channel_send_full Exemples

Exemple #1

Fichier : char-socket.c Projet : artyom-tarasenko/qemu

/* Called with chr_write_lock held.  */
static int tcp_chr_write(Chardev *chr, const uint8_t *buf, int len)
{
    SocketChardev *s = SOCKET_CHARDEV(chr);

    if (s->connected) {
        int ret =  io_channel_send_full(s->ioc, buf, len,
                                        s->write_msgfds,
                                        s->write_msgfds_num);

        /* free the written msgfds, no matter what */
        if (s->write_msgfds_num) {
            g_free(s->write_msgfds);
            s->write_msgfds = 0;
            s->write_msgfds_num = 0;
        }

        if (ret < 0 && errno != EAGAIN) {
            if (tcp_chr_read_poll(chr) <= 0) {
                tcp_chr_disconnect(chr);
                return len;
            } /* else let the read handler finish it properly */
        }

        return ret;
    } else {
        /* XXX: indicate an error ? */
        return len;
    }
}

Exemple #2

Fichier : char-socket.c Projet : evandowning/panda

/* Called with chr_write_lock held.  */
static int tcp_chr_write(Chardev *chr, const uint8_t *buf, int len)
{
    SocketChardev *s = SOCKET_CHARDEV(chr);

    if (s->connected) {
        int ret =  io_channel_send_full(s->ioc, buf, len,
                                        s->write_msgfds,
                                        s->write_msgfds_num);

        /* free the written msgfds, no matter what */
        if (s->write_msgfds_num) {
            g_free(s->write_msgfds);
            s->write_msgfds = 0;
            s->write_msgfds_num = 0;
        }

        return ret;
    } else {
        /* XXX: indicate an error ? */
        return len;
    }
}

Exemple #3

Fichier : char-io.c Projet : CTU-IIG/qemu

int io_channel_send_full(QIOChannel *ioc,
                         const void *buf, size_t len,
                         int *fds, size_t nfds)
{
    size_t offset = 0;

    while (offset < len) {
        ssize_t ret = 0;
        struct iovec iov = { .iov_base = (char *)buf + offset,
                             .iov_len = len - offset };

        ret = qio_channel_writev_full(
            ioc, &iov, 1,
            fds, nfds, NULL);
        if (ret == QIO_CHANNEL_ERR_BLOCK) {
            if (offset) {
                return offset;
            }

            errno = EAGAIN;
            return -1;
        } else if (ret < 0) {
            errno = EINVAL;
            return -1;
        }

        offset += ret;
    }

    return offset;
}

int io_channel_send(QIOChannel *ioc, const void *buf, size_t len)
{
    return io_channel_send_full(ioc, buf, len, NULL, 0);
}