Start implementing unit tests for timers

src/core/timeouts.c

@@ -113,6 +113,14 @@ const int lwip_num_cyclic_timers = LWIP_ARRAYSIZE(lwip_cyclic_timers);
 static struct sys_timeo *next_timeout;
 static u32_t timeouts_last_time;
 
+#if LWIP_TESTMODE
+struct sys_timeo**
+lwip_sys_timers_get_next_timout(void)
+{
+  return &next_timeout;
+}
+#endif
+
 #if LWIP_TCP
 /** global variable that shows if the tcp timer is currently scheduled or not */
 static int tcpip_tcp_timer_active;
@@ -313,7 +321,7 @@ sys_untimeout(sys_timeout_handler handler, void *arg)
  *
  * Must be called periodically from your main loop.
  */
-#if !NO_SYS && !defined __DOXYGEN__
+#if !LWIP_TESTMODE && !NO_SYS && !defined __DOXYGEN__
 static
 #endif /* !NO_SYS */
 void
@@ -377,7 +385,7 @@ sys_restart_timeouts(void)
 /** Return the time left before the next timeout is due. If no timeouts are
  * enqueued, returns 0xffffffff
  */
-#if !NO_SYS
+#if !LWIP_TESTMODE && !NO_SYS
 static
 #endif /* !NO_SYS */
 u32_t

src/include/lwip/timeouts.h

@@ -106,13 +106,17 @@ void sys_timeout(u32_t msecs, sys_timeout_handler handler, void *arg);
 
 void sys_untimeout(sys_timeout_handler handler, void *arg);
 void sys_restart_timeouts(void);
-#if NO_SYS
+#if LWIP_TESTMODE || NO_SYS
 void sys_check_timeouts(void);
 u32_t sys_timeouts_sleeptime(void);
-#else /* NO_SYS */
+#endif
+#if !NO_SYS
 void sys_timeouts_mbox_fetch(sys_mbox_t *mbox, void **msg);
 #endif /* NO_SYS */
 
+#if LWIP_TESTMODE
+struct sys_timeo** lwip_sys_timers_get_next_timout(void);
+#endif
 
 #endif /* LWIP_TIMERS */