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/*
Copyright (c) 2018 Red Hat, Inc. <http://www.redhat.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
General Public License, version 3 or any later version (LGPLv3 or
later), or the GNU General Public License, version 2 (GPLv2), in all
cases as published by the Free Software Foundation.
*/
#ifndef _CLOUDSYNC_COMMON_H
#define _CLOUDSYNC_COMMON_H
#include <glusterfs/glusterfs.h>
#include <glusterfs/call-stub.h>
#include <glusterfs/xlator.h>
#include <glusterfs/syncop.h>
#include <glusterfs/compat-errno.h>
#include "cloudsync-mem-types.h"
#include "cloudsync-messages.h"
typedef struct cs_loc_xattr {
char *file_path;
uuid_t uuid;
uuid_t gfid;
char *volname;
} cs_loc_xattr_t;
typedef struct cs_size_xattr {
uint64_t size;
uint64_t blksize;
uint64_t blocks;
} cs_size_xattr_t;
typedef struct cs_local {
loc_t loc;
fd_t *fd;
call_stub_t *stub;
call_frame_t *main_frame;
int op_errno;
int op_ret;
fd_t *dlfd;
off_t dloffset;
struct iatt stbuf;
dict_t *xattr_rsp;
dict_t *xattr_req;
glusterfs_fop_t fop;
gf_boolean_t locked;
int call_cnt;
inode_t *inode;
char *remotepath;
struct {
/* offset, flags and size are the information needed
* by read fop for remote read operation. These will be
* populated in cloudsync read fop, before being passed
* on to the plugin performing remote read.
*/
off_t offset;
uint32_t flags;
size_t size;
cs_loc_xattr_t *lxattr;
} xattrinfo;
} cs_local_t;
typedef int (*fop_download_t)(call_frame_t *frame, void *config);
typedef int (*fop_remote_read_t)(call_frame_t *, void *);
typedef void *(*store_init)(xlator_t *this);
typedef int (*store_reconfigure)(xlator_t *this, dict_t *options);
typedef void (*store_fini)(void *config);
struct cs_remote_stores {
char *name; /* store name */
void *config; /* store related information */
fop_download_t dlfop; /* store specific download function */
fop_remote_read_t rdfop; /* store specific read function */
store_init init; /* store init to initialize store config */
store_reconfigure reconfigure; /* reconfigure store config */
store_fini fini;
void *handle; /* shared library handle*/
};
typedef struct cs_private {
xlator_t *this;
struct cs_remote_stores *stores;
gf_boolean_t abortdl;
pthread_spinlock_t lock;
gf_boolean_t remote_read;
} cs_private_t;
void
cs_local_wipe(xlator_t *this, cs_local_t *local);
void
cs_xattrinfo_wipe(cs_local_t *local);
#define CS_STACK_UNWIND(fop, frame, params...) \
do { \
cs_local_t *__local = NULL; \
xlator_t *__xl = NULL; \
if (frame) { \
__xl = frame->this; \
__local = frame->local; \
frame->local = NULL; \
} \
STACK_UNWIND_STRICT(fop, frame, params); \
cs_local_wipe(__xl, __local); \
} while (0)
#define CS_STACK_DESTROY(frame) \
do { \
cs_local_t *__local = NULL; \
xlator_t *__xl = NULL; \
__xl = frame->this; \
__local = frame->local; \
frame->local = NULL; \
STACK_DESTROY(frame->root); \
cs_local_wipe(__xl, __local); \
} while (0)
typedef struct store_methods {
int (*fop_download)(call_frame_t *frame, void *config);
int (*fop_remote_read)(call_frame_t *, void *);
/* return type should be the store config */
void *(*fop_init)(xlator_t *this);
int (*fop_reconfigure)(xlator_t *this, dict_t *options);
void (*fop_fini)(void *config);
} store_methods_t;
#endif /* _CLOUDSYNC_COMMON_H */
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