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diff --git a/grpc-proxy/grpc-async-cb.h b/grpc-proxy/grpc-async-cb.h
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+++ b/grpc-proxy/grpc-async-cb.h
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+/*
+ * Copyright © 2022 Collabora, Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#pragma once
+
+#include <memory>
+
+#define GRPC_CALLBACK_API_NONEXPERIMENTAL
+
+#include <grpc/grpc.h>
+#include <grpcpp/grpcpp.h>
+#include <grpcpp/server.h>
+#include <grpcpp/server_builder.h>
+#include <grpcpp/server_context.h>
+
+#include <mutex>
+#include <condition_variable>
+
+#include <grpcpp/ext/proto_server_reflection_plugin.h>
+#include <grpcpp/health_check_service_interface.h>
+
+#include "shell.h"
+#include "agl_shell.grpc.pb.h"
+
+namespace {
+       const char kDefaultGrpcServiceAddress[] = "127.0.0.1:14005";
+}
+
+class Lister : public grpc::ServerWriteReactor<::agl_shell_ipc::AppStateResponse> {
+public:
+	Lister(Shell *aglShell);
+	void OnDone() override;
+	void OnWriteDone(bool ok) override;
+	void NextWrite(void);
+	bool Writting(void);
+private:
+	Shell *m_shell;
+	bool m_writting;
+};
+
+class GrpcServiceImpl final : public agl_shell_ipc::AglShellManagerService::CallbackService {
+public:
+	GrpcServiceImpl(Shell *aglShell) : m_aglShell(aglShell) {}
+
+	grpc::ServerUnaryReactor *ActivateApp(grpc::CallbackServerContext *context,
+			const ::agl_shell_ipc::ActivateRequest* request,
+			::agl_shell_ipc::ActivateResponse* /*response*/) override;
+
+	grpc::ServerUnaryReactor *DeactivateApp(grpc::CallbackServerContext *context,
+			const ::agl_shell_ipc::DeactivateRequest* request,
+			::agl_shell_ipc::DeactivateResponse* /*response*/) override;
+
+	grpc::ServerUnaryReactor *SetAppFloat(grpc::CallbackServerContext *context,
+			const ::agl_shell_ipc::FloatRequest* request,
+			::agl_shell_ipc::FloatResponse* /*response*/) override;
+
+	grpc::ServerUnaryReactor *SetAppSplit(grpc::CallbackServerContext *context,
+			const ::agl_shell_ipc::SplitRequest* request,
+			::agl_shell_ipc::SplitResponse* /*response*/) override;
+
+	grpc::ServerUnaryReactor *GetOutputs(grpc::CallbackServerContext *context,
+			const ::agl_shell_ipc::OutputRequest* /* request */,
+			::agl_shell_ipc::ListOutputResponse* response) override;
+
+	grpc::ServerWriteReactor< ::agl_shell_ipc::AppStateResponse>* AppStatusState(
+	      ::grpc::CallbackServerContext* /*context*/,
+	      const ::agl_shell_ipc::AppStateRequest* /*request*/)  override;
+
+private:
+       Shell *m_aglShell;
+};