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/**
 * FreeRDP: A Remote Desktop Protocol Implementation
 * Telemetry Virtual Channel Extension
 *
 * Copyright 2022 Pascal Nowack <Pascal.Nowack@gmx.de>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *	 http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef FREERDP_CHANNEL_TELEMETRY_SERVER_TELEMETRY_H
#define FREERDP_CHANNEL_TELEMETRY_SERVER_TELEMETRY_H

#include <freerdp/channels/telemetry.h>
#include <freerdp/channels/wtsvc.h>

#ifdef __cplusplus
extern "C"
{
#endif

	typedef struct s_telemetry_server_context TelemetryServerContext;

	typedef UINT (*psTelemetryServerOpen)(TelemetryServerContext* context);
	typedef UINT (*psTelemetryServerClose)(TelemetryServerContext* context);

	typedef BOOL (*psTelemetryServerChannelIdAssigned)(TelemetryServerContext* context,
	                                                   UINT32 channelId);

	typedef UINT (*psTelemetryServerInitialize)(TelemetryServerContext* context,
	                                            BOOL externalThread);
	typedef UINT (*psTelemetryServerPoll)(TelemetryServerContext* context);
	typedef BOOL (*psTelemetryServerChannelHandle)(TelemetryServerContext* context, HANDLE* handle);

	typedef UINT (*psTelemetryServerRdpTelemetry)(TelemetryServerContext* context,
	                                              const TELEMETRY_RDP_TELEMETRY_PDU* rdpTelemetry);

	struct s_telemetry_server_context
	{
		HANDLE vcm;

		/* Server self-defined pointer. */
		void* userdata;

		/*** APIs called by the server. ***/

		/**
		 * Optional: Set thread handling.
		 * When externalThread=TRUE, the application is responsible to call
		 * Poll() periodically to process channel events.
		 *
		 * Defaults to externalThread=FALSE
		 */
		psTelemetryServerInitialize Initialize;

		/**
		 * Open the telemetry channel.
		 */
		psTelemetryServerOpen Open;

		/**
		 * Close the telemetry channel.
		 */
		psTelemetryServerClose Close;

		/**
		 * Poll
		 * When externalThread=TRUE, call Poll() periodically from your main loop.
		 * If externalThread=FALSE do not call.
		 */
		psTelemetryServerPoll Poll;

		/**
		 * Retrieve the channel handle for use in conjunction with Poll().
		 * If externalThread=FALSE do not call.
		 */
		psTelemetryServerChannelHandle ChannelHandle;

		/*** Callbacks registered by the server. ***/

		/**
		 * Callback, when the channel got its id assigned
		 */
		psTelemetryServerChannelIdAssigned ChannelIdAssigned;
		/**
		 * Callback for the RDP Telemetry PDU.
		 */
		psTelemetryServerRdpTelemetry RdpTelemetry;

		rdpContext* rdpcontext;
	};

	FREERDP_API void telemetry_server_context_free(TelemetryServerContext* context);

	WINPR_ATTR_MALLOC(telemetry_server_context_free, 1)
	FREERDP_API TelemetryServerContext* telemetry_server_context_new(HANDLE vcm);

#ifdef __cplusplus
}
#endif

#endif /* FREERDP_CHANNEL_TELEMETRY_SERVER_TELEMETRY_H */