Function prof_try_log

deps/jemalloc/src/prof.c:443–518

}

static void
prof_try_log(tsd_t *tsd, const void *ptr, size_t usize, prof_tctx_t *tctx) {
	malloc_mutex_assert_owner(tsd_tsdn(tsd), tctx->tdata->lock);

	prof_tdata_t *cons_tdata = prof_tdata_get(tsd, false);
	if (cons_tdata == NULL) {
		/*
		 * We decide not to log these allocations. cons_tdata will be
		 * NULL only when the current thread is in a weird state (e.g.
		 * it's being destroyed).
		 */
		return;
	}

	malloc_mutex_lock(tsd_tsdn(tsd), &log_mtx);

	if (prof_logging_state != prof_logging_state_started) {
		goto label_done;
	}

	if (!log_tables_initialized) {
		bool err1 = ckh_new(tsd, &log_bt_node_set, PROF_CKH_MINITEMS,
				prof_bt_node_hash, prof_bt_node_keycomp);
		bool err2 = ckh_new(tsd, &log_thr_node_set, PROF_CKH_MINITEMS,
				prof_thr_node_hash, prof_thr_node_keycomp);
		if (err1 || err2) {
			goto label_done;
		}
		log_tables_initialized = true;
	}

	nstime_t alloc_time = prof_alloc_time_get(tsd_tsdn(tsd), ptr,
			          (alloc_ctx_t *)NULL);
	nstime_t free_time = NSTIME_ZERO_INITIALIZER;
	nstime_update(&free_time);

	size_t sz = sizeof(prof_alloc_node_t);
	prof_alloc_node_t *new_node = (prof_alloc_node_t *)
	    iallocztm(tsd_tsdn(tsd), sz, sz_size2index(sz), false, NULL, true,
	    arena_get(TSDN_NULL, 0, true), true);

	const char *prod_thr_name = (tctx->tdata->thread_name == NULL)?
				        "" : tctx->tdata->thread_name;
	const char *cons_thr_name = prof_thread_name_get(tsd);

	prof_bt_t bt;
	/* Initialize the backtrace, using the buffer in tdata to store it. */
	bt_init(&bt, cons_tdata->vec);
	prof_backtrace(&bt);
	prof_bt_t *cons_bt = &bt;

	/* We haven't destroyed tctx yet, so gctx should be good to read. */
	prof_bt_t *prod_bt = &tctx->gctx->bt;

	new_node->next = NULL;
	new_node->alloc_thr_ind = prof_log_thr_index(tsd, tctx->tdata->thr_uid,
				      prod_thr_name);
	new_node->free_thr_ind = prof_log_thr_index(tsd, cons_tdata->thr_uid,