C++ (Cpp) g_at_util_setup_ioの例

コード例 #1

ファイル: gatio.c プロジェクト: AndriusA/ofono

static GAtIO *create_io(GIOChannel *channel, GIOFlags flags)
{
	GAtIO *io;

	if (channel == NULL)
		return NULL;

	io = g_try_new0(GAtIO, 1);
	if (io == NULL)
		return io;

	io->ref_count = 1;
	io->debugf = NULL;

	if (flags & G_IO_FLAG_NONBLOCK) {
		io->max_read_attempts = 3;
		io->use_write_watch = TRUE;
	} else {
		io->max_read_attempts = 1;
		io->use_write_watch = FALSE;
	}

	io->buf = ring_buffer_new(8192);

	if (!io->buf)
		goto error;

	if (!g_at_util_setup_io(channel, flags))
		goto error;

	io->channel = channel;
	io->read_watch = g_io_add_watch_full(channel, G_PRIORITY_DEFAULT,
				G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
				received_data, io,
				read_watcher_destroy_notify);

	return io;

error:
	if (io->buf)
		ring_buffer_free(io->buf);

	g_free(io);

	return NULL;
}

コード例 #2

ファイル: ppp_net.c プロジェクト: Conjuror/ofono

struct ppp_net *ppp_net_new(GAtPPP *ppp, int fd)
{
	struct ppp_net *net;
	GIOChannel *channel = NULL;
	struct ifreq ifr;
	int err;

	net = g_try_new0(struct ppp_net, 1);
	if (net == NULL)
		goto badalloc;

	net->ppp_packet = ppp_packet_new(MAX_PACKET, PPP_IP_PROTO);
	if (net->ppp_packet == NULL)
		goto error;

	/*
	 * If the fd value is still the default one,
	 * open the tun interface and configure it.
	 */
	memset(&ifr, 0, sizeof(ifr));

	if (fd < 0) {
		/* open a tun interface */
		fd = open("/dev/net/tun", O_RDWR);
		if (fd < 0)
			goto error;

		ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
		strcpy(ifr.ifr_name, "ppp%d");

		err = ioctl(fd, TUNSETIFF, (void *) &ifr);
		if (err < 0)
			goto error;
	} else {
		err = ioctl(fd, TUNGETIFF, (void *) &ifr);
		if (err < 0)
			goto error;
	}

	net->if_name = strdup(ifr.ifr_name);

	/* create a channel for reading and writing to this interface */
	channel = g_io_channel_unix_new(fd);
	if (channel == NULL)
		goto error;

	if (!g_at_util_setup_io(channel, 0))
		goto error;

	g_io_channel_set_buffered(channel, FALSE);

	net->channel = channel;
	net->watch = g_io_add_watch(channel,
			G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
			ppp_net_callback, net);
	net->ppp = ppp;

	net->mtu = MAX_PACKET;
	return net;

error:
	if (channel)
		g_io_channel_unref(channel);

	g_free(net->if_name);
	g_free(net->ppp_packet);
	g_free(net);

badalloc:
	if (fd >= 0)
		close(fd);

	return NULL;
}