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58e84c8bf0
* Re-land "Support multiple shells in a single process. (#4932)" This reverts commit 723c7d01439da4261bc836075fb55651ce9e7f03.
44 lines
1.0 KiB
C++
44 lines
1.0 KiB
C++
// Copyright 2018 The Fuchsia Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "task_observers.h"
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#include <map>
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#include "lib/fsl/tasks/message_loop.h"
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namespace flutter {
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thread_local std::map<intptr_t, fxl::Closure> tTaskObservers;
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static void ExecuteAfterTaskObservers() {
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for (const auto& callback : tTaskObservers) {
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callback.second();
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}
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}
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void CurrentMessageLoopAddAfterTaskObserver(intptr_t key,
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fxl::Closure observer) {
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if (!observer) {
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return;
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}
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if (tTaskObservers.size() == 0) {
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fsl::MessageLoop::GetCurrent()->SetAfterTaskCallback(
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std::bind(&ExecuteAfterTaskObservers));
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}
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tTaskObservers[key] = observer;
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}
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void CurrentMessageLoopRemoveAfterTaskObserver(intptr_t key) {
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tTaskObservers.erase(key);
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if (tTaskObservers.size() == 0) {
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fsl::MessageLoop::GetCurrent()->ClearAfterTaskCallback();
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}
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}
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} // namespace flutter
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