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