Import Mbed OS hard-float snapshot

events/source/EventQueue.cpp

@@ -0,0 +1,88 @@
+/* events
+ * Copyright (c) 2016-2019 ARM Limited
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "events/EventQueue.h"
+#include "events/mbed_events.h"
+
+using mbed::Callback;
+
+namespace events {
+
+EventQueue::EventQueue(unsigned event_size, unsigned char *event_pointer)
+{
+    if (event_size == 0) {
+        // As static queue (EventQueue(0)) won't perform any access to its data buffer
+        // we can pass (0, NULL)
+        equeue_create_inplace(&_equeue, 0, NULL);
+    } else {
+        if (!event_pointer) {
+            equeue_create(&_equeue, event_size);
+        } else {
+            equeue_create_inplace(&_equeue, event_size, event_pointer);
+        }
+    }
+}
+
+EventQueue::~EventQueue()
+{
+    equeue_destroy(&_equeue);
+}
+
+void EventQueue::dispatch(int ms)
+{
+    return equeue_dispatch(&_equeue, ms);
+}
+
+void EventQueue::break_dispatch()
+{
+    return equeue_break(&_equeue);
+}
+
+unsigned EventQueue::tick()
+{
+    return equeue_tick();
+}
+
+bool EventQueue::cancel(int id)
+{
+    return equeue_cancel(&_equeue, id);
+}
+
+int EventQueue::time_left(int id)
+{
+    return equeue_timeleft(&_equeue, id);
+}
+
+void EventQueue::background(Callback<void(int)> update)
+{
+    _update = update;
+
+    if (_update) {
+        equeue_background(&_equeue, &Callback<void(int)>::thunk, &_update);
+    } else {
+        equeue_background(&_equeue, 0, 0);
+    }
+}
+
+int EventQueue::chain(EventQueue *target)
+{
+    if (target) {
+        return equeue_chain(&_equeue, &target->_equeue);
+    } else {
+        return equeue_chain(&_equeue, 0);
+    }
+}
+}