Esempi in C++ (Cpp) per rb_write_space

Esempio n. 1

File: cdda.c Progetto: menghun3/aqualung

void
cdda_send_event(int event_type, char * drive) {

	cdda_notify_t notify;

	/* If there is no space for the message, it is dropped.
	 * This may happen if GUI gets blocked (unable to run cdda_timeout_callback()
	 * for several seconds), however it is not anticipated to happen very often.
	 * In such case these events are not very much of use, anyway.
	 */
	if (rb_write_space(cdda_notify_rb) >= sizeof(cdda_notify_t)) {
		notify.event_type = event_type;
		notify.device_path = strdup(drive);
		rb_write(cdda_notify_rb, (char *)&notify, sizeof(cdda_notify_t));
	}
}

Esempio n. 2

File: rb.c Progetto: Spudd86/julia-vis

size_t
rb_write (rb_t * rb, const char *src, size_t cnt)
{
	size_t free_cnt;
	size_t cnt2;
	size_t to_write;
	size_t n1, n2;

	if ((free_cnt = rb_write_space (rb)) == 0) {
		return 0;
	}

	to_write = cnt > free_cnt ? free_cnt : cnt;

	cnt2 = rb->write_ptr + to_write;

	if (cnt2 > rb->size) {
		n1 = rb->size - rb->write_ptr;
		n2 = cnt2 & rb->size_mask;
	} else {
		n1 = to_write;
		n2 = 0;
	}

	memcpy (&(rb->buf[rb->write_ptr]), src, n1);
	rb->write_ptr += n1;
	rb->write_ptr &= rb->size_mask;

	if (n2) {
		memcpy (&(rb->buf[rb->write_ptr]), src + n1, n2);
		rb->write_ptr += n2;
		rb->write_ptr &= rb->size_mask;
	}

	return to_write;
}