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[add] a macro to be isolated while using signals in rt_mutex_take fun… #3775

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Merged
merged 1 commit into from
Aug 3, 2020
Merged

[add] a macro to be isolated while using signals in rt_mutex_take fun… #3775

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4 changes: 4 additions & 0 deletions src/ipc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -685,7 +685,9 @@ rt_err_t rt_mutex_take(rt_mutex_t mutex, rt_int32_t time)
}
else
{
#ifdef RT_USING_SIGNALS
__again:
#endif /* end of RT_USING_SIGNALS */
/* The value of mutex is 1 in initial status. Therefore, if the
* value is great than 0, it indicates the mutex is avaible.
*/
Expand Down Expand Up @@ -754,8 +756,10 @@ rt_err_t rt_mutex_take(rt_mutex_t mutex, rt_int32_t time)

if (thread->error != RT_EOK)
{
#ifdef RT_USING_SIGNALS
/* interrupt by signal, try it again */
if (thread->error == -RT_EINTR) goto __again;
#endif /* end of RT_USING_SIGNALS */

/* return error */
return thread->error;
Expand Down