Host: Add RunOnGSThread helper

pcsx2-qt/QtHost.cpp

@@ -1212,6 +1212,11 @@ void Host::RunOnCPUThread(std::function<void()> function, bool block /* = false
 		Q_ARG(const std::function<void()>&, std::move(function)));
 }
 
+void Host::RunOnGSThread(std::function<void()> function)
+{
+	RunOnCPUThread([fn = std::move(function)] { MTGS::RunOnGSThread(std::move(fn)); });
+}
+
 void Host::RefreshGameListAsync(bool invalidate_cache)
 {
 	QMetaObject::invokeMethod(g_main_window, "refreshGameList", Qt::QueuedConnection, Q_ARG(bool, invalidate_cache));

pcsx2/Host.h

@@ -84,6 +84,9 @@ namespace Host
 	/// Safely executes a function on the VM thread.
 	void RunOnCPUThread(std::function<void()> function, bool block = false);
 
+	/// Safely executes a function on the GS thread.
+	void RunOnGSThread(std::function<void()> function);
+
 	/// Asynchronously starts refreshing the game list.
 	void RefreshGameListAsync(bool invalidate_cache);
 

tests/ctest/core/StubHost.cpp

@@ -156,6 +156,10 @@ void Host::RunOnCPUThread(std::function<void()> function, bool block /* = false
 {
 }
 
+void Host::RunOnGSThread(std::function<void()> function)
+{
+}
+
 void Host::RefreshGameListAsync(bool invalidate_cache)
 {
 }