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62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
/*
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* Copyright (c) 2024, Tim Flynn <trflynn89@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Platform.h>
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#include <LibCore/FileWatcher.h>
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#include <LibCore/TimeZoneWatcher.h>
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#if !defined(AK_OS_LINUX)
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static_assert(false, "This file must only be used for Linux");
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#endif
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namespace Core {
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static constexpr auto time_zone_files = Array {
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"/etc/localtime"sv,
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"/etc/timezone"sv,
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"/etc/TZ"sv,
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};
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static constexpr auto time_zone_mask = FileWatcherEvent::Type::ContentModified
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| FileWatcherEvent::Type::Deleted
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| FileWatcherEvent::Type::DoNotFollowLink;
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class TimeZoneWatcherImpl final : public TimeZoneWatcher {
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public:
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static ErrorOr<NonnullOwnPtr<TimeZoneWatcherImpl>> create()
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{
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auto file_watcher = TRY(FileWatcher::create());
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for (auto time_zone_file : time_zone_files) {
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if (auto result = file_watcher->add_watch(time_zone_file, time_zone_mask); !result.is_error())
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break;
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}
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return adopt_own(*new TimeZoneWatcherImpl(move(file_watcher)));
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}
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private:
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explicit TimeZoneWatcherImpl(NonnullRefPtr<FileWatcher> file_watcher)
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: m_file_watcher(move(file_watcher))
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{
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m_file_watcher->on_change = [this](Core::FileWatcherEvent const& event) {
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if (on_time_zone_changed)
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on_time_zone_changed();
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if (has_flag(event.type, FileWatcherEvent::Type::Deleted))
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(void)m_file_watcher->add_watch(event.event_path, time_zone_mask);
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};
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}
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NonnullRefPtr<FileWatcher> m_file_watcher;
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};
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ErrorOr<NonnullOwnPtr<TimeZoneWatcher>> TimeZoneWatcher::create()
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{
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return TimeZoneWatcherImpl::create();
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}
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}
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