import

Kernel/SingleCore/os_sem.h

@@ -0,0 +1,88 @@
+#ifndef INCLUDED_OS_SEM_H
+#define INCLUDED_OS_SEM_H
+
+#ifndef INCLUDED_OS_TYPES_H
+#include <os_types.h>
+#endif /*INCLUDED_OS_TYPES_H*/
+
+#ifndef INCLUDED_OS_CRITICAL_H
+#include <os_critical.h>
+#endif /*INCLUDED_OS_CRITICAL_H*/
+
+#ifndef INCLUDED_OS_WAITOBJECT_H
+#include <os_waitobject.h>
+#endif /*INCLUDED_OS_WAITOBJECT_H*/
+
+/* ------------------------------------------------------------------------------------------------------------------ */
+/*  */
+
+typedef struct {
+    os_size_t value;
+    os_waitobject_t wait_obj;
+}os_sem_t;
+
+/* ------------------------------------------------------------------------------------------------------------------ */
+/*  */
+
+OS_STATIC_FORCE_INLINE
+void os_sem_init(os_sem_t* self, os_size_t value){
+    self->value = value;
+    os_waitobject_init(&self->wait_obj);
+}
+
+OS_STATIC_FORCE_INLINE
+os_err_t os_sem_timed_wait(os_sem_t* self, os_tick_t ticks){
+    os_critical_enter();
+    if(self->value>0){
+        self->value--;
+        os_critical_leave();
+        return OS_ERR_OK;
+    }
+    os_critical_leave();
+    return os_waitobject_timed_wait(&self->wait_obj,  os_task_self(), ticks);
+}
+
+OS_STATIC_FORCE_INLINE
+void os_sem_wait(os_sem_t* self){
+    os_critical_enter();
+    if(self->value>0){
+        self->value--;
+        os_critical_leave();
+    }
+    os_critical_leave();
+    os_waitobject_wait(&self->wait_obj, os_task_self());
+}
+
+OS_STATIC_FORCE_INLINE
+void os_sem_notify_all(os_sem_t* self){
+    os_critical_enter();
+    self->value++;
+    os_critical_leave();
+    os_waitobject_notify_all(&self->wait_obj);
+}
+
+OS_STATIC_FORCE_INLINE
+void os_sem_notify_one(os_sem_t* self){
+    os_critical_enter();
+    self->value++;
+    os_critical_leave();
+    os_waitobject_notify_one(&self->wait_obj);
+}
+
+OS_STATIC_FORCE_INLINE
+void os_sem_notify_all_in_isr(os_sem_t* self){
+    os_critical_enter_in_isr();
+    self->value++;
+    os_critical_leave_in_isr();
+    os_waitobject_notify_all_in_isr(&self->wait_obj);
+}
+
+OS_STATIC_FORCE_INLINE
+void os_sem_notify_one_in_isr(os_sem_t* self){
+    os_critical_enter_in_isr();
+    self->value++;
+    os_critical_leave_in_isr();
+    os_waitobject_notify_one_in_isr(&self->wait_obj);
+}
+
+#endif /*INCLUDED_OS_SEM_H*/