Merge pull request #9289 from liamwhite/fruit-company

general: fix compile for Apple Clang

src/common/fs/file.cpp

@@ -1,6 +1,8 @@
 // SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#include <vector>
+
 #include "common/fs/file.h"
 #include "common/fs/fs.h"
 #include "common/logging/log.h"

src/common/fs/fs_util.cpp

@@ -4,6 +4,7 @@
 #include <algorithm>
 
 #include "common/fs/fs_util.h"
+#include "common/polyfill_ranges.h"
 
 namespace Common::FS {
 

src/common/fs/path_util.cpp

@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <algorithm>
+#include <sstream>
 #include <unordered_map>
 
 #include "common/fs/fs.h"

src/common/input.h

@@ -8,6 +8,7 @@
 #include <string>
 #include <unordered_map>
 #include <utility>
+#include <vector>
 #include "common/logging/log.h"
 #include "common/param_package.h"
 #include "common/uuid.h"

src/common/logging/backend.cpp

@@ -4,7 +4,6 @@
 #include <atomic>
 #include <chrono>
 #include <climits>
-#include <stop_token>
 #include <thread>
 
 #include <fmt/format.h>
@@ -18,6 +17,7 @@
 #include "common/fs/fs_paths.h"
 #include "common/fs/path_util.h"
 #include "common/literals.h"
+#include "common/polyfill_thread.h"
 #include "common/thread.h"
 
 #include "common/logging/backend.h"

src/common/polyfill_ranges.h

@@ -0,0 +1,530 @@
+// SPDX-FileCopyrightText: 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+//
+// TODO: remove this file when ranges are supported by all compilation targets
+//
+
+#pragma once
+
+#include <algorithm>
+#include <utility>
+#include <version>
+
+#ifndef __cpp_lib_ranges
+
+namespace std {
+namespace ranges {
+
+template <typename T>
+concept range = requires(T& t) {
+    begin(t);
+    end(t);
+};
+
+template <typename T>
+concept input_range = range<T>;
+
+template <typename T>
+concept output_range = range<T>;
+
+template <range R>
+using range_difference_t = ptrdiff_t;
+
+//
+// find, find_if, find_if_not
+//
+
+struct find_fn {
+    template <typename Iterator, typename T, typename Proj = std::identity>
+    constexpr Iterator operator()(Iterator first, Iterator last, const T& value,
+                                  Proj proj = {}) const {
+        for (; first != last; ++first) {
+            if (std::invoke(proj, *first) == value) {
+                return first;
+            }
+        }
+        return first;
+    }
+
+    template <ranges::input_range R, typename T, typename Proj = std::identity>
+    constexpr ranges::iterator_t<R> operator()(R&& r, const T& value, Proj proj = {}) const {
+        return operator()(ranges::begin(r), ranges::end(r), value, std::ref(proj));
+    }
+};
+
+struct find_if_fn {
+    template <typename Iterator, typename Proj = std::identity, typename Pred>
+    constexpr Iterator operator()(Iterator first, Iterator last, Pred pred, Proj proj = {}) const {
+        for (; first != last; ++first) {
+            if (std::invoke(pred, std::invoke(proj, *first))) {
+                return first;
+            }
+        }
+        return first;
+    }
+
+    template <ranges::input_range R, typename Proj = std::identity, typename Pred>
+    constexpr ranges::iterator_t<R> operator()(R&& r, Pred pred, Proj proj = {}) const {
+        return operator()(ranges::begin(r), ranges::end(r), std::ref(pred), std::ref(proj));
+    }
+};
+
+struct find_if_not_fn {
+    template <typename Iterator, typename Proj = std::identity, typename Pred>
+    constexpr Iterator operator()(Iterator first, Iterator last, Pred pred, Proj proj = {}) const {
+        for (; first != last; ++first) {
+            if (!std::invoke(pred, std::invoke(proj, *first))) {
+                return first;
+            }
+        }
+        return first;
+    }
+
+    template <ranges::input_range R, typename Proj = std::identity, typename Pred>
+    constexpr ranges::iterator_t<R> operator()(R&& r, Pred pred, Proj proj = {}) const {
+        return operator()(ranges::begin(r), ranges::end(r), std::ref(pred), std::ref(proj));
+    }
+};
+
+inline constexpr find_fn find;
+inline constexpr find_if_fn find_if;
+inline constexpr find_if_not_fn find_if_not;
+
+//
+// any_of, all_of, none_of
+//
+
+struct all_of_fn {
+    template <typename Iterator, typename Proj = std::identity, typename Pred>
+    constexpr bool operator()(Iterator first, Iterator last, Pred pred, Proj proj = {}) const {
+        return ranges::find_if_not(first, last, std::ref(pred), std::ref(proj)) == last;
+    }
+
+    template <ranges::input_range R, typename Proj = std::identity, typename Pred>
+    constexpr bool operator()(R&& r, Pred pred, Proj proj = {}) const {
+        return operator()(ranges::begin(r), ranges::end(r), std::ref(pred), std::ref(proj));
+    }
+};
+
+struct any_of_fn {
+    template <typename Iterator, typename Proj = std::identity, typename Pred>
+    constexpr bool operator()(Iterator first, Iterator last, Pred pred, Proj proj = {}) const {
+        return ranges::find_if(first, last, std::ref(pred), std::ref(proj)) != last;
+    }
+
+    template <ranges::input_range R, typename Proj = std::identity, typename Pred>
+    constexpr bool operator()(R&& r, Pred pred, Proj proj = {}) const {
+        return operator()(ranges::begin(r), ranges::end(r), std::ref(pred), std::ref(proj));
+    }
+};
+
+struct none_of_fn {
+    template <typename Iterator, typename Proj = std::identity, typename Pred>
+    constexpr bool operator()(Iterator first, Iterator last, Pred pred, Proj proj = {}) const {
+        return ranges::find_if(first, last, std::ref(pred), std::ref(proj)) == last;
+    }
+
+    template <ranges::input_range R, typename Proj = std::identity, typename Pred>
+    constexpr bool operator()(R&& r, Pred pred, Proj proj = {}) const {
+        return operator()(ranges::begin(r), ranges::end(r), std::ref(pred), std::ref(proj));
+    }
+};
+
+inline constexpr any_of_fn any_of;
+inline constexpr all_of_fn all_of;
+inline constexpr none_of_fn none_of;
+
+//
+// count, count_if
+//
+
+struct count_fn {
+    template <typename Iterator, typename T, typename Proj = std::identity>
+    constexpr ptrdiff_t operator()(Iterator first, Iterator last, const T& value,
+                                   Proj proj = {}) const {
+        ptrdiff_t counter = 0;
+        for (; first != last; ++first)
+            if (std::invoke(proj, *first) == value)
+                ++counter;
+        return counter;
+    }
+
+    template <ranges::input_range R, typename T, typename Proj = std::identity>
+    constexpr ptrdiff_t operator()(R&& r, const T& value, Proj proj = {}) const {
+        return operator()(ranges::begin(r), ranges::end(r), value, std::ref(proj));
+    }
+};
+
+struct count_if_fn {
+    template <typename Iterator, typename Proj = std::identity, typename Pred>
+    constexpr ptrdiff_t operator()(Iterator first, Iterator last, Pred pred, Proj proj = {}) const {
+        ptrdiff_t counter = 0;
+        for (; first != last; ++first)
+            if (std::invoke(pred, std::invoke(proj, *first)))
+                ++counter;
+        return counter;
+    }
+
+    template <ranges::input_range R, typename Proj = std::identity, typename Pred>
+    constexpr ptrdiff_t operator()(R&& r, Pred pred, Proj proj = {}) const {
+        return operator()(ranges::begin(r), ranges::end(r), std::ref(pred), std::ref(proj));
+    }
+};
+
+inline constexpr count_fn count;
+inline constexpr count_if_fn count_if;
+
+//
+// transform
+//
+
+struct transform_fn {
+    template <typename InputIterator, typename OutputIterator, typename F,
+              typename Proj = std::identity>
+    constexpr void operator()(InputIterator first1, InputIterator last1, OutputIterator result,
+                              F op, Proj proj = {}) const {
+        for (; first1 != last1; ++first1, (void)++result) {
+            *result = std::invoke(op, std::invoke(proj, *first1));
+        }
+    }
+
+    template <ranges::input_range R, typename OutputIterator, typename F,
+              typename Proj = std::identity>
+    constexpr void operator()(R&& r, OutputIterator result, F op, Proj proj = {}) const {
+        return operator()(ranges::begin(r), ranges::end(r), result, std::ref(op), std::ref(proj));
+    }
+};
+
+inline constexpr transform_fn transform;
+
+//
+// sort
+//
+
+struct sort_fn {
+    template <typename Iterator, typename Comp = ranges::less, typename Proj = std::identity>
+    constexpr void operator()(Iterator first, Iterator last, Comp comp = {}, Proj proj = {}) const {
+        if (first == last)
+            return;
+
+        Iterator last_iter = ranges::next(first, last);
+        std::sort(first, last_iter,
+                  [&](auto& lhs, auto& rhs) { return comp(proj(lhs), proj(rhs)); });
+    }
+
+    template <ranges::input_range R, typename Comp = ranges::less, typename Proj = std::identity>
+    constexpr void operator()(R&& r, Comp comp = {}, Proj proj = {}) const {
+        return operator()(ranges::begin(r), ranges::end(r), std::move(comp), std::move(proj));
+    }
+};
+
+inline constexpr sort_fn sort;
+
+//
+// fill
+//
+
+struct fill_fn {
+    template <typename T, typename OutputIterator>
+    constexpr OutputIterator operator()(OutputIterator first, OutputIterator last,
+                                        const T& value) const {
+        while (first != last) {
+            *first++ = value;
+        }
+
+        return first;
+    }
+
+    template <typename T, ranges::output_range R>
+    constexpr ranges::iterator_t<R> operator()(R&& r, const T& value) const {
+        return operator()(ranges::begin(r), ranges::end(r), value);
+    }
+};
+
+inline constexpr fill_fn fill;
+
+//
+// for_each
+//
+
+struct for_each_fn {
+    template <typename Iterator, typename Proj = std::identity, typename Fun>
+    constexpr void operator()(Iterator first, Iterator last, Fun f, Proj proj = {}) const {
+        for (; first != last; ++first) {
+            std::invoke(f, std::invoke(proj, *first));
+        }
+    }
+
+    template <ranges::input_range R, typename Proj = std::identity, typename Fun>
+    constexpr void operator()(R&& r, Fun f, Proj proj = {}) const {
+        return operator()(ranges::begin(r), ranges::end(r), std::move(f), std::ref(proj));
+    }
+};
+
+inline constexpr for_each_fn for_each;
+
+//
+// min_element, max_element
+//
+
+struct min_element_fn {
+    template <typename Iterator, typename Proj = std::identity, typename Comp = ranges::less>
+    constexpr Iterator operator()(Iterator first, Iterator last, Comp comp = {},
+                                  Proj proj = {}) const {
+        if (first == last) {
+            return last;
+        }
+
+        auto smallest = first;
+        ++first;
+        for (; first != last; ++first) {
+            if (!std::invoke(comp, std::invoke(proj, *smallest), std::invoke(proj, *first))) {
+                smallest = first;
+            }
+        }
+        return smallest;
+    }
+
+    template <ranges::input_range R, typename Proj = std::identity, typename Comp = ranges::less>
+    constexpr ranges::iterator_t<R> operator()(R&& r, Comp comp = {}, Proj proj = {}) const {
+        return operator()(ranges::begin(r), ranges::end(r), std::ref(comp), std::ref(proj));
+    }
+};
+
+struct max_element_fn {
+    template <typename Iterator, typename Proj = std::identity, typename Comp = ranges::less>
+    constexpr Iterator operator()(Iterator first, Iterator last, Comp comp = {},
+                                  Proj proj = {}) const {
+        if (first == last) {
+            return last;
+        }
+
+        auto largest = first;
+        ++first;
+        for (; first != last; ++first) {
+            if (std::invoke(comp, std::invoke(proj, *largest), std::invoke(proj, *first))) {
+                largest = first;
+            }
+        }
+        return largest;
+    }
+
+    template <ranges::input_range R, typename Proj = std::identity, typename Comp = ranges::less>
+    constexpr ranges::iterator_t<R> operator()(R&& r, Comp comp = {}, Proj proj = {}) const {
+        return operator()(ranges::begin(r), ranges::end(r), std::ref(comp), std::ref(proj));
+    }
+};
+
+inline constexpr min_element_fn min_element;
+inline constexpr max_element_fn max_element;
+
+//
+// replace, replace_if
+//
+
+struct replace_fn {
+    template <typename Iterator, typename T1, typename T2, typename Proj = std::identity>
+    constexpr Iterator operator()(Iterator first, Iterator last, const T1& old_value,
+                                  const T2& new_value, Proj proj = {}) const {
+        for (; first != last; ++first) {
+            if (old_value == std::invoke(proj, *first)) {
+                *first = new_value;
+            }
+        }
+        return first;
+    }
+
+    template <ranges::input_range R, typename T1, typename T2, typename Proj = std::identity>
+    constexpr ranges::iterator_t<R> operator()(R&& r, const T1& old_value, const T2& new_value,
+                                               Proj proj = {}) const {
+        return operator()(ranges::begin(r), ranges::end(r), old_value, new_value, std::move(proj));
+    }
+};
+
+struct replace_if_fn {
+    template <typename Iterator, typename T, typename Proj = std::identity, typename Pred>
+    constexpr Iterator operator()(Iterator first, Iterator last, Pred pred, const T& new_value,
+                                  Proj proj = {}) const {
+        for (; first != last; ++first) {
+            if (!!std::invoke(pred, std::invoke(proj, *first))) {
+                *first = new_value;
+            }
+        }
+        return std::move(first);
+    }
+
+    template <ranges::input_range R, typename T, typename Proj = std::identity, typename Pred>
+    constexpr ranges::iterator_t<R> operator()(R&& r, Pred pred, const T& new_value,
+                                               Proj proj = {}) const {
+        return operator()(ranges::begin(r), ranges::end(r), std::move(pred), new_value,
+                          std::move(proj));
+    }
+};
+
+inline constexpr replace_fn replace;
+inline constexpr replace_if_fn replace_if;
+
+//
+// copy, copy_if
+//
+
+struct copy_fn {
+    template <typename InputIterator, typename OutputIterator>
+    constexpr void operator()(InputIterator first, InputIterator last,
+                              OutputIterator result) const {
+        for (; first != last; ++first, (void)++result) {
+            *result = *first;
+        }
+    }
+
+    template <ranges::input_range R, typename OutputIterator>
+    constexpr void operator()(R&& r, OutputIterator result) const {
+        return operator()(ranges::begin(r), ranges::end(r), std::move(result));
+    }
+};
+
+struct copy_if_fn {
+    template <typename InputIterator, typename OutputIterator, typename Proj = std::identity,
+              typename Pred>
+    constexpr void operator()(InputIterator first, InputIterator last, OutputIterator result,
+                              Pred pred, Proj proj = {}) const {
+        for (; first != last; ++first) {
+            if (std::invoke(pred, std::invoke(proj, *first))) {
+                *result = *first;
+                ++result;
+            }
+        }
+    }
+
+    template <ranges::input_range R, typename OutputIterator, typename Proj = std::identity,
+              typename Pred>
+    constexpr void operator()(R&& r, OutputIterator result, Pred pred, Proj proj = {}) const {
+        return operator()(ranges::begin(r), ranges::end(r), std::move(result), std::ref(pred),
+                          std::ref(proj));
+    }
+};
+
+inline constexpr copy_fn copy;
+inline constexpr copy_if_fn copy_if;
+
+//
+// generate
+//
+
+struct generate_fn {
+    template <typename Iterator, typename F>
+    constexpr Iterator operator()(Iterator first, Iterator last, F gen) const {
+        for (; first != last; *first = std::invoke(gen), ++first)
+            ;
+        return first;
+    }
+
+    template <typename R, std::copy_constructible F>
+    requires std::invocable<F&> && ranges::output_range<R>
+    constexpr ranges::iterator_t<R> operator()(R&& r, F gen) const {
+        return operator()(ranges::begin(r), ranges::end(r), std::move(gen));
+    }
+};
+
+inline constexpr generate_fn generate;
+
+//
+// lower_bound, upper_bound
+//
+
+struct lower_bound_fn {
+    template <typename Iterator, typename T, typename Proj = std::identity,
+              typename Comp = ranges::less>
+    constexpr Iterator operator()(Iterator first, Iterator last, const T& value, Comp comp = {},
+                                  Proj proj = {}) const {
+        Iterator it;
+        std::ptrdiff_t _count, _step;
+        _count = std::distance(first, last);
+
+        while (_count > 0) {
+            it = first;
+            _step = _count / 2;
+            ranges::advance(it, _step, last);
+            if (comp(std::invoke(proj, *it), value)) {
+                first = ++it;
+                _count -= _step + 1;
+            } else {
+                _count = _step;
+            }
+        }
+        return first;
+    }
+
+    template <ranges::input_range R, typename T, typename Proj = std::identity,
+              typename Comp = ranges::less>
+    constexpr ranges::iterator_t<R> operator()(R&& r, const T& value, Comp comp = {},
+                                               Proj proj = {}) const {
+        return operator()(ranges::begin(r), ranges::end(r), value, std::ref(comp), std::ref(proj));
+    }
+};
+
+struct upper_bound_fn {
+    template <typename Iterator, typename T, typename Proj = std::identity,
+              typename Comp = ranges::less>
+    constexpr Iterator operator()(Iterator first, Iterator last, const T& value, Comp comp = {},
+                                  Proj proj = {}) const {
+        Iterator it;
+        std::ptrdiff_t _count, _step;
+        _count = std::distance(first, last);
+
+        while (_count > 0) {
+            it = first;
+            _step = _count / 2;
+            ranges::advance(it, _step, last);
+            if (!comp(value, std::invoke(proj, *it))) {
+                first = ++it;
+                _count -= _step + 1;
+            } else {
+                _count = _step;
+            }
+        }
+        return first;
+    }
+
+    template <ranges::input_range R, typename T, typename Proj = std::identity,
+              typename Comp = ranges::less>
+    constexpr ranges::iterator_t<R> operator()(R&& r, const T& value, Comp comp = {},
+                                               Proj proj = {}) const {
+        return operator()(ranges::begin(r), ranges::end(r), value, std::ref(comp), std::ref(proj));
+    }
+};
+
+inline constexpr lower_bound_fn lower_bound;
+inline constexpr upper_bound_fn upper_bound;
+
+//
+// adjacent_find
+//
+
+struct adjacent_find_fn {
+    template <typename Iterator, typename Proj = std::identity, typename Pred = ranges::equal_to>
+    constexpr Iterator operator()(Iterator first, Iterator last, Pred pred = {},
+                                  Proj proj = {}) const {
+        if (first == last)
+            return first;
+        auto _next = ranges::next(first);
+        for (; _next != last; ++_next, ++first)
+            if (std::invoke(pred, std::invoke(proj, *first), std::invoke(proj, *_next)))
+                return first;
+        return _next;
+    }
+
+    template <ranges::input_range R, typename Proj = std::identity,
+              typename Pred = ranges::equal_to>
+    constexpr ranges::iterator_t<R> operator()(R&& r, Pred pred = {}, Proj proj = {}) const {
+        return operator()(ranges::begin(r), ranges::end(r), std::ref(pred), std::ref(proj));
+    }
+};
+
+inline constexpr adjacent_find_fn adjacent_find;
+
+} // namespace ranges
+} // namespace std
+
+#endif

src/common/polyfill_thread.h

@@ -0,0 +1,323 @@
+// SPDX-FileCopyrightText: 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+//
+// TODO: remove this file when jthread is supported by all compilation targets
+//
+
+#pragma once
+
+#include <version>
+
+#ifdef __cpp_lib_jthread
+
+#include <stop_token>
+#include <thread>
+
+namespace Common {
+
+template <typename Condvar, typename Lock, typename Pred>
+void CondvarWait(Condvar& cv, Lock& lock, std::stop_token token, Pred&& pred) {
+    cv.wait(lock, token, std::move(pred));
+}
+
+} // namespace Common
+
+#else
+
+#include <atomic>
+#include <functional>
+#include <list>
+#include <memory>
+#include <mutex>
+#include <optional>
+#include <thread>
+#include <type_traits>
+
+namespace std {
+namespace polyfill {
+
+using stop_state_callbacks = list<function<void()>>;
+
+class stop_state {
+public:
+    stop_state() = default;
+    ~stop_state() = default;
+
+    bool request_stop() {
+        stop_state_callbacks callbacks;
+
+        {
+            scoped_lock lk{m_lock};
+
+            if (m_stop_requested.load()) {
+                // Already set, nothing to do
+                return false;
+            }
+
+            // Set as requested
+            m_stop_requested = true;
+
+            // Copy callback list
+            callbacks = m_callbacks;
+        }
+
+        for (auto callback : callbacks) {
+            callback();
+        }
+
+        return true;
+    }
+
+    bool stop_requested() const {
+        return m_stop_requested.load();
+    }
+
+    stop_state_callbacks::const_iterator insert_callback(function<void()> f) {
+        stop_state_callbacks::const_iterator ret{};
+        bool should_run{};
+
+        {
+            scoped_lock lk{m_lock};
+            should_run = m_stop_requested.load();
+            m_callbacks.push_front(f);
+            ret = m_callbacks.begin();
+        }
+
+        if (should_run) {
+            f();
+        }
+
+        return ret;
+    }
+
+    void remove_callback(stop_state_callbacks::const_iterator it) {
+        scoped_lock lk{m_lock};
+        m_callbacks.erase(it);
+    }
+
+private:
+    mutex m_lock;
+    atomic<bool> m_stop_requested;
+    stop_state_callbacks m_callbacks;
+};
+
+} // namespace polyfill
+
+class stop_token;
+class stop_source;
+struct nostopstate_t {
+    explicit nostopstate_t() = default;
+};
+inline constexpr nostopstate_t nostopstate{};
+
+template <class Callback>
+class stop_callback;
+
+class stop_token {
+public:
+    stop_token() noexcept = default;
+
+    stop_token(const stop_token&) noexcept = default;
+    stop_token(stop_token&&) noexcept = default;
+    stop_token& operator=(const stop_token&) noexcept = default;
+    stop_token& operator=(stop_token&&) noexcept = default;
+    ~stop_token() = default;
+
+    void swap(stop_token& other) noexcept {
+        m_stop_state.swap(other.m_stop_state);
+    }
+
+    [[nodiscard]] bool stop_requested() const noexcept {
+        return m_stop_state && m_stop_state->stop_requested();
+    }
+    [[nodiscard]] bool stop_possible() const noexcept {
+        return m_stop_state != nullptr;
+    }
+
+private:
+    friend class stop_source;
+    template <typename Callback>
+    friend class stop_callback;
+    stop_token(shared_ptr<polyfill::stop_state> stop_state) : m_stop_state(move(stop_state)) {}
+
+private:
+    shared_ptr<polyfill::stop_state> m_stop_state;
+};
+
+class stop_source {
+public:
+    stop_source() : m_stop_state(make_shared<polyfill::stop_state>()) {}
+    explicit stop_source(nostopstate_t) noexcept {}
+
+    stop_source(const stop_source&) noexcept = default;
+    stop_source(stop_source&&) noexcept = default;
+    stop_source& operator=(const stop_source&) noexcept = default;
+    stop_source& operator=(stop_source&&) noexcept = default;
+    ~stop_source() = default;
+    void swap(stop_source& other) noexcept {
+        m_stop_state.swap(other.m_stop_state);
+    }
+
+    [[nodiscard]] stop_token get_token() const noexcept {
+        return stop_token(m_stop_state);
+    }
+    [[nodiscard]] bool stop_possible() const noexcept {
+        return m_stop_state != nullptr;
+    }
+    [[nodiscard]] bool stop_requested() const noexcept {
+        return m_stop_state && m_stop_state->stop_requested();
+    }
+    bool request_stop() noexcept {
+        return m_stop_state && m_stop_state->request_stop();
+    }
+
+private:
+    friend class jthread;
+    explicit stop_source(shared_ptr<polyfill::stop_state> stop_state)
+        : m_stop_state(move(stop_state)) {}
+
+private:
+    shared_ptr<polyfill::stop_state> m_stop_state;
+};
+
+template <typename Callback>
+class stop_callback {
+    static_assert(is_nothrow_destructible_v<Callback>);
+    static_assert(is_invocable_v<Callback>);
+
+public:
+    using callback_type = Callback;
+
+    template <typename C>
+    requires constructible_from<Callback, C>
+    explicit stop_callback(const stop_token& st,
+                           C&& cb) noexcept(is_nothrow_constructible_v<Callback, C>)
+        : m_stop_state(st.m_stop_state) {
+        if (m_stop_state) {
+            m_callback = m_stop_state->insert_callback(move(cb));
+        }
+    }
+    template <typename C>
+    requires constructible_from<Callback, C>
+    explicit stop_callback(stop_token&& st,
+                           C&& cb) noexcept(is_nothrow_constructible_v<Callback, C>)
+        : m_stop_state(move(st.m_stop_state)) {
+        if (m_stop_state) {
+            m_callback = m_stop_state->insert_callback(move(cb));
+        }
+    }
+    ~stop_callback() {
+        if (m_stop_state && m_callback) {
+            m_stop_state->remove_callback(*m_callback);
+        }
+    }
+
+    stop_callback(const stop_callback&) = delete;
+    stop_callback(stop_callback&&) = delete;
+    stop_callback& operator=(const stop_callback&) = delete;
+    stop_callback& operator=(stop_callback&&) = delete;
+
+private:
+    shared_ptr<polyfill::stop_state> m_stop_state;
+    optional<polyfill::stop_state_callbacks::const_iterator> m_callback;
+};
+
+template <typename Callback>
+stop_callback(stop_token, Callback) -> stop_callback<Callback>;
+
+class jthread {
+public:
+    using id = thread::id;
+    using native_handle_type = thread::native_handle_type;
+
+    jthread() noexcept = default;
+
+    template <typename F, typename... Args,
+              typename = enable_if_t<!is_same_v<remove_cvref_t<F>, jthread>>>
+    explicit jthread(F&& f, Args&&... args)
+        : m_stop_state(make_shared<polyfill::stop_state>()),
+          m_thread(make_thread(move(f), move(args)...)) {}
+
+    ~jthread() {
+        if (joinable()) {
+            request_stop();
+            join();
+        }
+    }
+
+    jthread(const jthread&) = delete;
+    jthread(jthread&&) noexcept = default;
+    jthread& operator=(const jthread&) = delete;
+
+    jthread& operator=(jthread&& other) noexcept {
+        m_thread.swap(other.m_thread);
+        m_stop_state.swap(other.m_stop_state);
+        return *this;
+    }
+
+    void swap(jthread& other) noexcept {
+        m_thread.swap(other.m_thread);
+        m_stop_state.swap(other.m_stop_state);
+    }
+    [[nodiscard]] bool joinable() const noexcept {
+        return m_thread.joinable();
+    }
+    void join() {
+        m_thread.join();
+    }
+    void detach() {
+        m_thread.detach();
+        m_stop_state.reset();
+    }
+
+    [[nodiscard]] id get_id() const noexcept {
+        return m_thread.get_id();
+    }
+    [[nodiscard]] native_handle_type native_handle() {
+        return m_thread.native_handle();
+    }
+    [[nodiscard]] stop_source get_stop_source() noexcept {
+        return stop_source(m_stop_state);
+    }
+    [[nodiscard]] stop_token get_stop_token() const noexcept {
+        return stop_source(m_stop_state).get_token();
+    }
+    bool request_stop() noexcept {
+        return get_stop_source().request_stop();
+    }
+    [[nodiscard]] static unsigned int hardware_concurrency() noexcept {
+        return thread::hardware_concurrency();
+    }
+
+private:
+    template <typename F, typename... Args>
+    thread make_thread(F&& f, Args&&... args) {
+        if constexpr (is_invocable_v<decay_t<F>, stop_token, decay_t<Args>...>) {
+            return thread(move(f), get_stop_token(), move(args)...);
+        } else {
+            return thread(move(f), move(args)...);
+        }
+    }
+
+    shared_ptr<polyfill::stop_state> m_stop_state;
+    thread m_thread;
+};
+
+} // namespace std
+
+namespace Common {
+
+template <typename Condvar, typename Lock, typename Pred>
+void CondvarWait(Condvar& cv, Lock& lock, std::stop_token token, Pred pred) {
+    if (token.stop_requested()) {
+        return;
+    }
+
+    std::stop_callback callback(token, [&] { cv.notify_all(); });
+    cv.wait(lock, [&] { return pred() || token.stop_requested(); });
+}
+
+} // namespace Common
+
+#endif

src/common/thread_worker.h

@@ -7,13 +7,13 @@
 #include <condition_variable>
 #include <functional>
 #include <mutex>
-#include <stop_token>
 #include <string>
 #include <thread>
 #include <type_traits>
 #include <vector>
 #include <queue>
 
+#include "common/polyfill_thread.h"
 #include "common/thread.h"
 #include "common/unique_function.h"
 
@@ -47,7 +47,8 @@ public:
                         if (requests.empty()) {
                             wait_condition.notify_all();
                         }
-                        condition.wait(lock, stop_token, [this] { return !requests.empty(); });
+                        Common::CondvarWait(condition, lock, stop_token,
+                                            [this] { return !requests.empty(); });
                         if (stop_token.stop_requested()) {
                             break;
                         }

src/common/threadsafe_queue.h

@@ -12,6 +12,8 @@
 #include <mutex>
 #include <utility>
 
+#include "common/polyfill_thread.h"
+
 namespace Common {
 template <typename T, bool with_stop_token = false>
 class SPSCQueue {
@@ -97,7 +99,7 @@ public:
     T PopWait(std::stop_token stop_token) {
         if (Empty()) {
             std::unique_lock lock{cv_mutex};
-            cv.wait(lock, stop_token, [this] { return !Empty(); });
+            Common::CondvarWait(cv, lock, stop_token, [this] { return !Empty(); });
         }
         if (stop_token.stop_requested()) {
             return T{};