在gettimeofday函数中添加对RTC设备不可用时使用滴答计数的处理

Bluebear233 · Bluebear233 · commit 3c4bff5c8a3d · 2025-06-30T16:16:04.000+08:00
diff --git a/components/libc/compilers/common/ctime.c b/components/libc/compilers/common/ctime.c
@@ -497,6 +497,11 @@ int gettimeofday(struct timeval *tv, struct timezone *tz)
             {
                 return 0;
             }
+            else
+            {
+                // if RTC device is not available, use tick count
+                tv->tv_sec = rt_tick_get() / RT_TICK_PER_SECOND;
+            }
         }
     }
 #endif /* RT_USING_RTC */

Original file line number	Diff line number	Diff line change
`@@ -497,6 +497,11 @@ int gettimeofday(struct timeval tv, struct timezone tz)`
`497`	`497`	`{`
`498`	`498`	`return 0;`
`499`	`499`	`}`
	`500`	`+ else`
	`501`	`+ {`
	`502`	`+ // if RTC device is not available, use tick count`
	`503`	`+ tv->tv_sec = rt_tick_get() / RT_TICK_PER_SECOND;`
	`504`	`+ }`
`500`	`505`	`}`
`501`	`506`	`}`
`502`	`507`	`#endif /* RT_USING_RTC */`