70 lines
2.0 KiB
C++
70 lines
2.0 KiB
C++
/*
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* Copyright (C) 2023 The Android Open Source Project
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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 "CallbackManager.h"
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#include "DriverBase.h"
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namespace filament::backend {
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CallbackManager::CallbackManager(DriverBase& driver) noexcept
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: mDriver(driver), mCallbacks(1) {
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}
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CallbackManager::~CallbackManager() noexcept = default;
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void CallbackManager::terminate() noexcept {
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for (auto&& item: mCallbacks) {
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if (item.func) {
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mDriver.scheduleCallback(
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item.handler, item.user, item.func);
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}
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}
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}
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CallbackManager::Handle CallbackManager::get() const noexcept {
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Container::const_iterator const curr = getCurrent();
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curr->count.fetch_add(1);
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return curr;
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}
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void CallbackManager::put(Handle& curr) noexcept {
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if (curr->count.fetch_sub(1) == 1) {
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if (curr->func) {
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mDriver.scheduleCallback(
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curr->handler, curr->user, curr->func);
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destroySlot(curr);
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}
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}
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curr = {};
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}
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void CallbackManager::setCallback(
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CallbackHandler* handler, CallbackHandler::Callback func, void* user) {
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assert_invariant(func);
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Container::iterator const curr = allocateNewSlot();
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curr->handler = handler;
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curr->func = func;
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curr->user = user;
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if (curr->count == 0) {
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mDriver.scheduleCallback(
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curr->handler, curr->user, curr->func);
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destroySlot(curr);
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}
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}
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} // namespace filament::backend
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