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[Kernel] mutex can be used before scheduler startup.

This commit is contained in:
bernard 2017-09-29 10:23:49 +08:00
parent b47994cb42
commit e9a77b513f
1 changed files with 11 additions and 9 deletions
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20
src/ipc.c
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@ -644,16 +644,17 @@ rt_err_t rt_mutex_take(rt_mutex_t mutex, rt_int32_t time)
register rt_base_t temp;
struct rt_thread *thread;
/* this function must not be used in interrupt even if time = 0 */
RT_DEBUG_IN_THREAD_CONTEXT;
RT_ASSERT(mutex != RT_NULL);
/* disable interrupt */
temp = rt_hw_interrupt_disable();
/* get current thread */
thread = rt_thread_self();
if (!thread) return RT_EOK; /* return directory if scheduler not started */
/* this function must not be used in interrupt even if time = 0 */
RT_DEBUG_IN_THREAD_CONTEXT;
/* disable interrupt */
temp = rt_hw_interrupt_disable();
RT_OBJECT_HOOK_CALL(rt_object_trytake_hook, (&(mutex->parent.parent)));
@ -777,11 +778,12 @@ rt_err_t rt_mutex_release(rt_mutex_t mutex)
need_schedule = RT_FALSE;
/* only thread could release mutex because we need test the ownership */
RT_DEBUG_IN_THREAD_CONTEXT;
/* get current thread */
thread = rt_thread_self();
if (!thread) return RT_EOK;
/* only thread could release mutex because we need test the ownership */
RT_DEBUG_IN_THREAD_CONTEXT;
/* disable interrupt */
temp = rt_hw_interrupt_disable();