C++ (Cpp) qio_channel_file_new_fd Exemples

Exemple #1

Fichier : char-pty.c Projet : pfliu/qemu

static void char_pty_open(Chardev *chr,
                          ChardevBackend *backend,
                          bool *be_opened,
                          Error **errp)
{
    PtyChardev *s;
    int master_fd, slave_fd;
    char pty_name[PATH_MAX];
    char *name;

    master_fd = qemu_openpty_raw(&slave_fd, pty_name);
    if (master_fd < 0) {
        error_setg_errno(errp, errno, "Failed to create PTY");
        return;
    }

    close(slave_fd);
    qemu_set_nonblock(master_fd);

    chr->filename = g_strdup_printf("pty:%s", pty_name);
    error_report("char device redirected to %s (label %s)",
                 pty_name, chr->label);

    s = PTY_CHARDEV(chr);
    s->ioc = QIO_CHANNEL(qio_channel_file_new_fd(master_fd));
    name = g_strdup_printf("chardev-pty-%s", chr->label);
    qio_channel_set_name(QIO_CHANNEL(s->ioc), name);
    g_free(name);
    s->timer_src = NULL;
    *be_opened = false;
}

Exemple #2

Fichier : char-fd.c Projet : mdroth/qemu

/* open a character device to a unix fd */
void qemu_chr_open_fd(Chardev *chr,
                      int fd_in, int fd_out)
{
    FDChardev *s = FD_CHARDEV(chr);
    char *name;

    s->ioc_in = QIO_CHANNEL(qio_channel_file_new_fd(fd_in));
    name = g_strdup_printf("chardev-file-in-%s", chr->label);
    qio_channel_set_name(QIO_CHANNEL(s->ioc_in), name);
    g_free(name);
    s->ioc_out = QIO_CHANNEL(qio_channel_file_new_fd(fd_out));
    name = g_strdup_printf("chardev-file-out-%s", chr->label);
    qio_channel_set_name(QIO_CHANNEL(s->ioc_out), name);
    g_free(name);
    qemu_set_nonblock(fd_out);
    s->chr = chr;
}

Exemple #3

Fichier : test-io-channel-file.c Projet : brianmcmichael/qemu

static void test_io_channel_pipe(bool async)
{
    QIOChannel *src, *dst;
    QIOChannelTest *test;
    int fd[2];

    if (pipe(fd) < 0) {
        perror("pipe");
        abort();
    }

    src = QIO_CHANNEL(qio_channel_file_new_fd(fd[1]));
    dst = QIO_CHANNEL(qio_channel_file_new_fd(fd[0]));

    test = qio_channel_test_new();
    qio_channel_test_run_threads(test, async, src, dst);
    qio_channel_test_validate(test);

    object_unref(OBJECT(src));
    object_unref(OBJECT(dst));
}

Exemple #4

Fichier : test-vmstate.c Projet : JunaidLoonat/qemu

/* Duplicate temp_fd and seek to the beginning of the file */
static QEMUFile *open_test_file(bool write)
{
    int fd = dup(temp_fd);
    QIOChannel *ioc;
    QEMUFile *f;

    lseek(fd, 0, SEEK_SET);
    if (write) {
        g_assert_cmpint(ftruncate(fd, 0), ==, 0);
    }
    ioc = QIO_CHANNEL(qio_channel_file_new_fd(fd));
    if (write) {
        f = qemu_fopen_channel_output(ioc);
    } else {
        f = qemu_fopen_channel_input(ioc);
    }
    object_unref(OBJECT(ioc));
    return f;
}