/**

 * FreeRDP: A Remote Desktop Protocol Implementation

 * RemoteFX USB Redirection

 *

 * Copyright 2012 Atrust corp.

 * Copyright 2012 Alfred Liu <alfred.liu@atruscorp.com>

 *

 * 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_URBDRC_CLIENT_ISOCH_QUEUE_H

#define FREERDP_CHANNEL_URBDRC_CLIENT_ISOCH_QUEUE_H

#include "urbdrc_types.h"

typedef struct _ISOCH_CALLBACK_DATA ISOCH_CALLBACK_DATA;

typedef struct _ISOCH_CALLBACK_QUEUE ISOCH_CALLBACK_QUEUE;

struct _ISOCH_CALLBACK_DATA

{

	void * inode;

	void * prev;

	void * next;

	void * device;

	BYTE * out_data;

	UINT32 out_size;

	void * callback;

};

struct _ISOCH_CALLBACK_QUEUE

{

	int isoch_num;

	ISOCH_CALLBACK_DATA* curr; /* current point */

	ISOCH_CALLBACK_DATA* head; /* head point in linked list */

	ISOCH_CALLBACK_DATA* tail; /* tail point in linked list */

	pthread_mutex_t isoch_loading;

	/* Isochronous queue service */

	void (*rewind) (ISOCH_CALLBACK_QUEUE * queue);

	BOOL (*has_next) (ISOCH_CALLBACK_QUEUE * queue);

	int (*unregister_data) (ISOCH_CALLBACK_QUEUE* queue, ISOCH_CALLBACK_DATA* isoch);

	ISOCH_CALLBACK_DATA *(*get_next) (ISOCH_CALLBACK_QUEUE * queue);

	ISOCH_CALLBACK_DATA *(*register_data) (ISOCH_CALLBACK_QUEUE* queue, 

		void * callback, void * dev);

	void (*free) (ISOCH_CALLBACK_QUEUE * queue);

};

ISOCH_CALLBACK_QUEUE* isoch_queue_new(void);

#endif /* FREERDP_CHANNEL_URBDRC_CLIENT_ISOCH_QUEUE_H */