Merge pull request #4797 from Guozhanxin/usleep

[update] usleep supports calling in interrupts.
2021-06-15 18:49:57 +08:00 · 2021-06-15 18:49:57 +08:00 · 302c8bf23f
parent 8a274211f1 66b7289ee7
commit 302c8bf23f
1 changed files with 8 additions and 1 deletions
--- a/components/libc/compilers/common/unistd.c
+++ b/components/libc/compilers/common/unistd.c
@ -55,7 +55,14 @@ RTM_EXPORT(sleep);

 int usleep(useconds_t usec)
 {
+    if (rt_thread_self() != RT_NULL)
+    {
        rt_thread_mdelay(usec / 1000u);
+    }
+    else
+    {
+        rt_hw_us_delay(usec / 1000u);
+    }
    rt_hw_us_delay(usec % 1000u);
    return 0;
 }