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xrdp-proprietary/common/fifo.h

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1.2 KiB

/**
* xrdp: A Remote Desktop Protocol server.
*
* Copyright (C) Laxmikant Rashinkar 2004-2014
*
* 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.
*
* FIFO implementation to store pointer to data struct
*/
#ifndef _FIFO_H
#define _FIFO_H
#include "arch.h"
typedef struct user_data USER_DATA;
struct user_data
{
USER_DATA *next;
void *item;
};
typedef struct fifo
{
USER_DATA *head;
USER_DATA *tail;
int auto_free;
} FIFO;
FIFO * APP_CC fifo_create(void);
void APP_CC fifo_delete(FIFO *self);
int APP_CC fifo_add_item(FIFO *self, void *item);
void * APP_CC fifo_remove_item(FIFO *self);
int APP_CC fifo_is_empty(FIFO *self);
#endif