Function trace_span_slot

common/trace.c:252–262

* Find an empty slot for a new span. */

 * Find an empty slot for a new span.
 */
static struct span *trace_span_slot(void)
{
	/* Look for a free fixed slot. */
	for (size_t i = 0; i < ARRAY_SIZE(fixed_spans); i++) {
		if (fixed_spans[i].key == 0)
			return &fixed_spans[i];
	}

	/* Those are used up, we have to allocate. */
	return tal(spans, struct span);
}

#define MAX_BUF_SIZE 2048