afb81b8278
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76 lines
1.5 KiB
C++
76 lines
1.5 KiB
C++
// This file is part of Desktop App Toolkit,
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// a set of libraries for developing nice desktop applications.
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//
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// For license and copyright information please follow this link:
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// https://github.com/desktop-app/legal/blob/master/LEGAL
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//
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#pragma once
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#include <crl/common/crl_common_config.h>
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#include <crl/common/crl_common_queue.h>
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#include <atomic>
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#ifndef CRL_USE_COMMON_QUEUE
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#define CRL_USE_COMMON_QUEUE
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#endif // !CRL_USE_COMMON_QUEUE
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namespace crl::details {
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extern queue *MainQueue;
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extern std::atomic<int> MainQueueCounter;
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class main_queue_pointer {
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public:
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main_queue_pointer() {
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grab();
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}
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void create(main_queue_processor processor);
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explicit operator bool() const {
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return _pointer != nullptr;
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}
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queue *operator->() const {
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return _pointer;
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}
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~main_queue_pointer() {
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ungrab();
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}
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private:
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void grab();
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void ungrab();
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queue *_pointer = nullptr;
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};
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} // namespace crl::details
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namespace crl {
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void init_main_queue(main_queue_processor processor);
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inline void wrap_main_queue(main_queue_wrapper wrapper) {
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// If wrapping is needed here, it can be done inside processor.
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}
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template <typename Callable>
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inline void on_main(Callable &&callable) {
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if (const auto main = details::main_queue_pointer()) {
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main->async(std::forward<Callable>(callable));
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}
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}
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template <typename Callable>
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inline void on_main_sync(Callable &&callable) {
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if (const auto main = details::main_queue_pointer()) {
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main->sync(std::forward<Callable>(callable));
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}
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}
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} // namespace crl
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