s3-device.h

开源备份软件源码 AMANDA, the Advanced Maryland Automatic Network Disk Archiver, is a backup system that a

/*
 * Copyright (c) 2005 Zmanda, Inc.  All Rights Reserved.
 * 
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License version 2.1 as 
 * published by the Free Software Foundation.
 * 
 * This library 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.
 * 
 * Contact information: Zmanda Inc., 505 N Mathlida Ave, Suite 120
 * Sunnyvale, CA 94085, USA, or: http://www.zmanda.com
 */

#ifndef __S3_DEVICE_H__
#define __S3_DEVICE_H__
#include <glib.h>
#include <curl/curl.h>
#include <glib-object.h>
#include "s3.h"

/*
 * Constants
 */

/*
 * Type checking and casting macros
 */
#define TYPE_S3_DEVICE	(s3_device_get_type())
#define S3_DEVICE(obj)	G_TYPE_CHECK_INSTANCE_CAST((obj), s3_device_get_type(), S3Device)
#define S3_DEVICE_CONST(obj)	G_TYPE_CHECK_INSTANCE_CAST((obj), s3_device_get_type(), S3Device const)
#define S3_DEVICE_CLASS(klass)	G_TYPE_CHECK_CLASS_CAST((klass), s3_device_get_type(), S3DeviceClass)
#define IS_S3_DEVICE(obj)	G_TYPE_CHECK_INSTANCE_TYPE((obj), s3_device_get_type ())

#define S3_DEVICE_GET_CLASS(obj)	G_TYPE_INSTANCE_GET_CLASS((obj), s3_device_get_type(), S3DeviceClass)

/*
 * Main object structure
 */
typedef struct _S3MetadataFile S3MetadataFile;

#ifndef __TYPEDEF_S3_DEVICE__
#define __TYPEDEF_S3_DEVICE__
typedef struct _S3Device S3Device;
#endif
struct _S3Device {
    Device __parent__;
    
    /* The "easy" curl handle we use to access Amazon S3 */
    S3Handle *s3;

    /* S3 access information */
    char *bucket;
    char *prefix;

    /* The S3 access information. */
    char *secret_key;
    char *access_key;
#ifdef WANT_DEVPAY
    char *user_token;
#endif

    /* a cache for unsuccessful reads (where we get the file but the caller
     * doesn't have space for it or doesn't want it), where we expect the
     * next call will request the same file.
     */
    char *cached_buf;
    char *cached_key;
    int cached_size;

    /* Produce verbose output? */
    gboolean verbose;
    /* Set to FALSE once s3_device_open_device is finished. */
    gboolean initializing;
};

/*
 * Class definition
 */
typedef struct _S3DeviceClass S3DeviceClass;
struct _S3DeviceClass {
    DeviceClass __parent__;
};


/*
 * Public methods
 */
GType	s3_device_get_type	(void);
void    s3_device_register    (void);

#endif