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/******************************************************************************
*
* Copyright (c) 2009 Citrix Systems, Inc. (Grzegorz Milos)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __SHM_H__
#define __SHM_H__
#include <pthread.h>
#include <unistd.h>
#define MAX_NAME_LEN 1000
typedef struct vbd_image_info {
char file[MAX_NAME_LEN];
int ref_cnt;
uint16_t next;
uint16_t prev;
} vbd_image_info_t;
#define MAX_NR_VBD_IMAGES 4096
typedef struct shared_memshr_info {
unsigned long magic;
pthread_mutex_t lock;
int fgprtshr_hash_inited;
int blockshr_hash_inited;
vbd_image_info_t vbd_images[MAX_NR_VBD_IMAGES];
} shared_memshr_info_t;
shared_memshr_info_t * shm_shared_info_open(int unlink);
struct fgprtshr_hash * shm_fgprtshr_hash_open(int unlink);
struct blockshr_hash * shm_blockshr_hash_open(int unlink);
uint16_t shm_vbd_image_get(const char* file, vbd_image_info_t *vbd_imgs);
void shm_vbd_image_put(uint16_t memshr_id, vbd_image_info_t *vbd_imgs);
#endif /* __SHM_H__ */
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