Function init_span

common/trace.c:107–132

static struct span *current;

static void init_span(struct span *s, size_t key, const char *name,
		      struct span *parent)
{
	struct timeabs now =
	    time_now(); /* discouraged: but tracing wants non-dev time */

	s->key = key;
	s->id = pseudorand_u64();
	s->start_time = (now.ts.tv_sec * 1000000) + now.ts.tv_nsec / 1000;
	s->parent = parent;
	s->name = name;
	s->suspended = false;
	for (size_t i = 0; i < SPAN_MAX_TAGS; i++)
		s->tags[i].name = NULL;

	/* If this is a new root span we also need to associate a new
	 * trace_id with it. */
	if (!s->parent) {
		s->trace_id_hi = pseudorand_u64();
		s->trace_id_lo = pseudorand_u64();
	} else {
		s->trace_id_hi = current->trace_id_hi;
		s->trace_id_lo = current->trace_id_lo;
	}
	span_htable_add(spans, s);
}

/* FIXME: forward decls for minimal patch size */
static struct span *trace_span_slot(void);