edde746
0e3c592205
close #1453 Events were delivered to the Flutter event sink directly on the mpv event thread while method replies were already marshaled; concurrent messenger use from two threads intermittently crashed guests during the event burst of an in-place media switch. Also joins the event thread before draining platform tasks in the plugin destructor (reverse member destruction order would otherwise let the event thread enqueue into a destroyed queue) and coalesces the wakeup PostMessage behind a retry-safe flag.
62 lines
1.8 KiB
C++
62 lines
1.8 KiB
C++
#ifndef MPV_PLUGIN_H_
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#define MPV_PLUGIN_H_
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#include <flutter/encodable_value.h>
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#include <flutter/event_channel.h>
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#include <flutter/event_stream_handler_functions.h>
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#include <flutter/method_channel.h>
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#include <flutter/plugin_registrar_windows.h>
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#include <flutter/standard_method_codec.h>
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#include <functional>
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#include <memory>
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#include <mutex>
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#include <optional>
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#include <queue>
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#include "display_mode_manager.h"
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#include "mpv_player.h"
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// C-style registration function for the plugin.
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void MpvPlayerPluginRegisterWithRegistrar(FlutterDesktopPluginRegistrarRef registrar);
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namespace mpv {
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class MpvPlayerPlugin : public flutter::Plugin {
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public:
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static void RegisterWithRegistrar(flutter::PluginRegistrarWindows* registrar);
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MpvPlayerPlugin(flutter::PluginRegistrarWindows* registrar);
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virtual ~MpvPlayerPlugin();
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private:
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void HandleMethodCall(
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const flutter::MethodCall<flutter::EncodableValue>& method_call,
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std::unique_ptr<flutter::MethodResult<flutter::EncodableValue>> result);
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void SendEvent(const flutter::EncodableValue& event);
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void PostToPlatformThread(std::function<void()> task);
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void DrainPlatformTasks();
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HWND GetWindow();
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HWND GetChildWindow();
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flutter::PluginRegistrarWindows* registrar_;
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DWORD platform_thread_id_;
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HWND flutter_window_ = nullptr;
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std::unique_ptr<flutter::MethodChannel<flutter::EncodableValue>> method_channel_;
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std::unique_ptr<flutter::EventChannel<flutter::EncodableValue>> event_channel_;
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std::unique_ptr<flutter::EventSink<flutter::EncodableValue>> event_sink_;
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std::unique_ptr<MpvPlayer> player_;
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DisplayModeManager display_mode_manager_;
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std::optional<int32_t> proc_id_;
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std::mutex platform_tasks_mutex_;
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std::queue<std::function<void()>> platform_tasks_;
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bool wakeup_posted_ = false; // guarded by platform_tasks_mutex_
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};
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} // namespace mpv
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#endif // MPV_PLUGIN_H_
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