add tmr_status()

Author: Richard Aas

include/re_tmr.h

@@ -25,6 +25,7 @@ void     tmr_poll(struct list *tmrl);
 uint64_t tmr_jiffies(void);
 uint64_t tmr_next_timeout(struct list *tmrl);
 void     tmr_debug(void);
+int      tmr_status(struct re_printf *pf, void *unused);
 
 void     tmr_init(struct tmr *tmr);
 void     tmr_start(struct tmr *tmr, uint64_t delay, tmr_h *th, void *arg);

src/tmr/tmr.c

@@ -172,31 +172,43 @@ uint64_t tmr_next_timeout(struct list *tmrl)
 }
 
 
-/**
- * Print timer debug info to stderr
- */
-void tmr_debug(void)
+int tmr_status(struct re_printf *pf, void *unused)
 {
 	struct list *tmrl = tmrl_get();
 	struct le *le;
 	uint32_t n;
+	int err;
+
+	(void)unused;
 
 	n = list_count(tmrl);
 	if (!n)
-		return;
+		return 0;
 
-	(void)re_fprintf(stderr, "Timers (%u):\n", n);
+	err = re_hprintf(pf, "Timers (%u):\n", n);
 
 	for (le = tmrl->head; le; le = le->next) {
 		const struct tmr *tmr = le->data;
 
-		(void)re_fprintf(stderr, "  %p: th=%p expire=%llums\n",
-				 tmr, tmr->th,
-				 (unsigned long long)tmr_get_expire(tmr));
+		err |= re_hprintf(pf, "  %p: th=%p expire=%llums\n",
+				  tmr, tmr->th,
+				  (unsigned long long)tmr_get_expire(tmr));
 	}
 
 	if (n > 100)
-		(void)re_fprintf(stderr, "    (Dumped Timers: %u)\n", n);
+		err |= re_hprintf(pf, "    (Dumped Timers: %u)\n", n);
+
+	return err;
+}
+
+
+/**
+ * Print timer debug info to stderr
+ */
+void tmr_debug(void)
+{
+	if (!list_isempty(tmrl_get()))
+		(void)re_fprintf(stderr, "%H", tmr_status, NULL);
 }