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/*
Copyright (c) 2014 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 __SNAP_VIEW_CLIENT_H__
#define __SNAP_VIEW_CLIENT_H__
#ifndef _CONFIG_H
#define _CONFIG_H
#include "config.h"
#endif
#include "glusterfs.h"
#include "logging.h"
#include "dict.h"
#include "xlator.h"
#include "defaults.h"
#include "snapview-client-mem-types.h"
struct __svc_local {
loc_t loc;
xlator_t *subvolume;
fd_t *fd;
void *cookie;
dict_t *xdata;
};
typedef struct __svc_local svc_local_t;
void
svc_local_free (svc_local_t *local);
#define SVC_STACK_UNWIND(fop, frame, params ...) do { \
svc_local_t *__local = NULL; \
if (frame) { \
__local = frame->local; \
frame->local = NULL; \
} \
STACK_UNWIND_STRICT (fop, frame, params); \
svc_local_free (__local); \
} while (0)
#define SVC_ENTRY_POINT_SET(this, xdata, op_ret, op_errno, new_xdata, \
priv, ret, label) \
do { \
if (!xdata) { \
xdata = new_xdata = dict_new (); \
if (!new_xdata) { \
gf_log (this->name, GF_LOG_ERROR, \
"failed to allocate new dict"); \
op_ret = -1; \
op_errno = ENOMEM; \
goto label; \
} \
} \
ret = dict_set_str (xdata, "entry-point", "true"); \
if (ret) { \
gf_log (this->name, GF_LOG_ERROR, \
"failed to set dict"); \
op_ret = -1; \
op_errno = ENOMEM; \
goto label; \
} \
} while (0);
#define SVC_GET_SUBVOL_FROM_CTX(this, op_ret, op_errno, inode_type, ret, \
inode, subvolume, label) \
do { \
ret = svc_inode_ctx_get (this, inode, &inode_type); \
if (ret < 0) { \
gf_log (this->name, GF_LOG_ERROR, \
"inode context not found for gfid %s", \
uuid_utoa (inode->gfid)); \
op_ret = -1; \
op_errno = EINVAL; \
goto label; \
} \
\
subvolume = svc_get_subvolume (this, inode_type); \
} while (0);
struct svc_private {
char *path;
char *special_dir; /* needed for samba */
gf_boolean_t show_entry_point;
};
typedef struct svc_private svc_private_t;
struct svc_fd {
off_t last_offset;
gf_boolean_t entry_point_handled;
gf_boolean_t special_dir;
};
typedef struct svc_fd svc_fd_t;
typedef enum {
NORMAL_INODE = 1,
VIRTUAL_INODE
} inode_type_t;
void svc_local_free (svc_local_t *local);
xlator_t *
svc_get_subvolume (xlator_t *this, int inode_type);
int
__svc_inode_ctx_get (xlator_t *this, inode_t *inode, int *inode_type);
int
svc_inode_ctx_get (xlator_t *this, inode_t *inode, int *inode_type);
int32_t
svc_inode_ctx_set (xlator_t *this, inode_t *inode, int inode_type);
void
svc_local_free (svc_local_t *local);
gf_boolean_t
svc_readdir_on_special_dir (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno,
gf_dirent_t *entries, dict_t *xdata);
#endif /* __SNAP_VIEW_CLIENT_H__ */
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