/* direct_compress for fusecompress.
 * Copyright (C) 2005 Anders Aagaard <aagaande@gmail.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General
 * Public License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307, USA.
 */
 
#include "list.h"
#include "structs.h"

typedef struct {
    char *filename;
    unsigned int filename_hash;
    pthread_mutex_t *lock;
    int accesses; // Number of threads accessing this.
    struct compress_module *compressor; // NULL if file isn't compressed
    struct list_head list; // kernel linked list
} database_entry_h;

#define COMPRESSOR_READ filedata->database->compressor->read
#define COMPRESSOR_WRITE filedata->database->compressor->write
#define COMPRESSOR_OPEN filedata->database->compressor->open
#define COMPRESSOR_CLOSE filedata->database->compressor->close

/* TODO : */
#define LOCK_DATABASE
#define UNLOCK_DATABASE
#define LOCK_ENTRY
#define UNLOCK_ENTRY
#define _CACHE_MSG(fmt,...)
#define _TODO_



// DEFINES THAT SHOULD BE MOVED ELSEWHERE

// This is from fusecompress.c:
int decompress(int fd_source, const char *source, struct compress_module *compressor);


/* This should be moved to fusecompress, and fi->fh should point to this instead of a fd */
typedef struct {
    database_entry_h *database; // link to database, can't be free'd until accesses = 0
    int fd; // file descriptor
    
    void *compressor_data; // for example gzFile
    int offset; // offset in file (this if for compression data)
} filedata_h;

#define FALSE 0
#define TRUE 1
#define FAIL -1