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104 lines
2.7 KiB
C++
104 lines
2.7 KiB
C++
/* Copyright (c) 2016 ARM Limited
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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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#ifndef _JERRYSCRIPT_MBED_EVENT_LOOP_EVENT_LOOP_H
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#define _JERRYSCRIPT_MBED_EVENT_LOOP_EVENT_LOOP_H
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#include <vector>
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#include "jerry-core/jerry-api.h"
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#include "Callback.h"
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#include "mbed_assert.h"
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#include "mbed-events/EventQueue.h"
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#include "jerryscript-mbed-util/logging.h"
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#include "jerryscript-mbed-event-loop/BoundCallback.h"
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extern "C" void exit(int return_code);
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namespace mbed {
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namespace js {
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static const uint32_t EVENT_INTERVAL_MS = 1;
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class EventLoop {
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private:
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static EventLoop instance;
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public:
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static EventLoop& getInstance() {
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return instance;
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}
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void go() {
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while (true) {
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queue.dispatch();
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}
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}
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Callback<void()> wrapFunction(jerry_value_t f) {
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MBED_ASSERT(jerry_value_is_function(f));
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// not sure if this is necessary?
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jerry_acquire_value(f);
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// we need to return a callback that'll schedule this
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Callback<void(uint32_t)> cb_raw(this, &EventLoop::callback);
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BoundCallback<void(uint32_t)> *cb = new BoundCallback<void(uint32_t)>(cb_raw, f);
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bound_callbacks.push_back(std::make_pair(f, cb));
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return *cb;
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}
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void dropCallback(jerry_value_t f) {
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jerry_release_value(f);
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for (std::vector<std::pair<jerry_value_t, BoundCallback<void(uint32_t)>*> >::iterator it = bound_callbacks.begin(); it != bound_callbacks.end(); it++) {
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std::pair<jerry_value_t, BoundCallback<void(uint32_t)>*> element = *it;
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if (element.first == f) {
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delete element.second;
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break;
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}
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}
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}
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void callback(jerry_value_t f) {
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queue.call(jerry_call_function, f, jerry_create_null(), (const jerry_value_t*)NULL, 0);
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}
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void nativeCallback(Callback<void()> cb) {
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queue.call(cb);
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}
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events::EventQueue& getQueue() {
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return queue;
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}
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private:
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EventLoop() {}
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std::vector<std::pair<jerry_value_t, BoundCallback<void(uint32_t)>*> > bound_callbacks;
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events::EventQueue queue;
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};
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void event_loop();
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} // namespace js
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} // namespace mbed
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#endif // _JERRYSCRIPT_MBED_EVENT_LOOP_EVENT_LOOP_H
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