[ulog] Optimize code to improve readability.

Guozhanxin · Guozhanxin · commit af702e048d17 · 2022-02-10T10:22:08.000+08:00
diff --git a/components/utilities/ulog/ulog.c b/components/utilities/ulog/ulog.c
@@ -191,7 +191,7 @@ static void output_unlock(void)
         return;
 
     /* If the scheduler is started and in thread context */
-    if (rt_thread_self() && (rt_interrupt_get_nest() == 0))
+    if (rt_interrupt_get_nest() == 0 && rt_thread_self() != RT_NULL)
     {
         rt_sem_release(&ulog.output_locker);
     }
@@ -209,7 +209,7 @@ static void output_lock(void)
         return;
 
     /* If the scheduler is started and in thread context */
-    if (rt_thread_self() && (rt_interrupt_get_nest() == 0))
+    if (rt_interrupt_get_nest() == 0 && rt_thread_self() != RT_NULL)
     {
         rt_sem_take(&ulog.output_locker, RT_WAITING_FOREVER);
     }

Original file line number	Diff line number	Diff line change
`@@ -191,7 +191,7 @@ static void output_unlock(void)`
`191`	`191`	`return;`
`192`	`192`
`193`	`193`	`/* If the scheduler is started and in thread context */`
`194`		`- if (rt_thread_self() && (rt_interrupt_get_nest() == 0))`
	`194`	`+ if (rt_interrupt_get_nest() == 0 && rt_thread_self() != RT_NULL)`
`195`	`195`	`{`
`196`	`196`	`rt_sem_release(&ulog.output_locker);`
`197`	`197`	`}`
`@@ -209,7 +209,7 @@ static void output_lock(void)`
`209`	`209`	`return;`
`210`	`210`
`211`	`211`	`/* If the scheduler is started and in thread context */`
`212`		`- if (rt_thread_self() && (rt_interrupt_get_nest() == 0))`
	`212`	`+ if (rt_interrupt_get_nest() == 0 && rt_thread_self() != RT_NULL)`
`213`	`213`	`{`
`214`	`214`	`rt_sem_take(&ulog.output_locker, RT_WAITING_FOREVER);`
`215`	`215`	`}`