Ejemplos de g_at_io_set_write_handler en C++ (Cpp)

Ejemplo n.º 1

Archivo: gatrawip.c Proyecto: AndriusA/ofono

static void tun_bytes(struct ring_buffer *rbuf, gpointer user_data)
{
	GAtRawIP *rawip = user_data;

	rawip->write_buffer = rbuf;

	g_at_io_set_write_handler(rawip->io, can_write_data, rawip);
}

Ejemplo n.º 2

Archivo: gathdlc.c Proyecto: yongsu/oFono

gboolean g_at_hdlc_send(GAtHDLC *hdlc, const unsigned char *data, gsize size)
{
	unsigned int avail = ring_buffer_avail(hdlc->write_buffer);
	unsigned int wrap = ring_buffer_avail_no_wrap(hdlc->write_buffer);
	unsigned char *buf = ring_buffer_write_ptr(hdlc->write_buffer, 0);
	unsigned char tail[2];
	unsigned int i = 0;
	guint16 fcs = HDLC_INITFCS;
	gboolean escape = FALSE;
	gsize pos = 0;

	if (avail < size)
		return FALSE;

	i = 0;

	while (pos < avail && i < size) {
		if (escape == TRUE) {
			fcs = HDLC_FCS(fcs, data[i]);
			*buf = data[i++] ^ HDLC_TRANS;
			escape = FALSE;
		} else if (NEED_ESCAPE(hdlc->xmit_accm, data[i])) {
			*buf = HDLC_ESCAPE;
			escape = TRUE;
		} else {
			fcs = HDLC_FCS(fcs, data[i]);
			*buf = data[i++];
		}

		buf++;
		pos++;

		if (pos == wrap)
			buf = ring_buffer_write_ptr(hdlc->write_buffer, pos);
	}

	if (i < size)
		return FALSE;

	fcs ^= HDLC_INITFCS;
	tail[0] = fcs & 0xff;
	tail[1] = fcs >> 8;

	i = 0;

	while (pos < avail && i < sizeof(tail)) {
		if (escape == TRUE) {
			*buf = tail[i++] ^ HDLC_TRANS;
			escape = FALSE;
		} else if (NEED_ESCAPE(hdlc->xmit_accm, tail[i])) {
			*buf = HDLC_ESCAPE;
			escape = TRUE;
		} else {
			*buf = tail[i++];
		}

		buf++;
		pos++;

		if (pos == wrap)
			buf = ring_buffer_write_ptr(hdlc->write_buffer, pos);
	}

	if (i < sizeof(tail))
		return FALSE;

	if (pos + 1 > avail)
		return FALSE;

	*buf = HDLC_FLAG;
	pos++;

	ring_buffer_write_advance(hdlc->write_buffer, pos);

	g_at_io_set_write_handler(hdlc->io, can_write_data, hdlc);

	return TRUE;
}