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/*
Copyright (c) 2008, 2009 Z RESEARCH, Inc. <http://www.zresearch.com>
This file is part of GlusterFS.
GlusterFS 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 3 of the License,
or (at your option) any later version.
GlusterFS 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, see
<http://www.gnu.org/licenses/>.
*/
#ifndef _LIBGLUSTERFSCLIENT_H
#define _LIBGLUSTERFSCLIENT_H
#include <sys/cdefs.h>
__BEGIN_DECLS
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
typedef struct {
struct iovec *vector;
int count;
void *iobref;
void *dictref;
} glusterfs_iobuf_t;
typedef struct {
char *logfile;
char *loglevel;
struct {
char *specfile;
FILE *specfp;
};
char *volume_name;
unsigned long lookup_timeout;
unsigned long stat_timeout;
} glusterfs_init_params_t;
typedef void * glusterfs_handle_t;
/* FIXME: how is glusterfs_file_t different from glusterfs_dir_t? */
typedef void * glusterfs_file_t;
typedef void * glusterfs_dir_t;
typedef
int (*glusterfs_readv_cbk_t) (int op_ret, int op_errno, glusterfs_iobuf_t *buf,
void *cbk_data);
typedef
int (*glusterfs_write_cbk_t) (int op_ret, int op_errno, void *cbk_data);
typedef
int (*glusterfs_get_cbk_t) (int op_ret, int op_errno, glusterfs_iobuf_t *buf,
struct stat *stbuf, void *cbk_data);
/* Used to free the glusterfs_read_buf passed to the application from
glusterfs_read_async_cbk
*/
void
glusterfs_free (glusterfs_iobuf_t *buf);
/* libglusterfsclient initialization function */
glusterfs_handle_t
glusterfs_init (glusterfs_init_params_t *ctx);
int
glusterfs_fini (glusterfs_handle_t handle);
/* For smaller files, application can use just glusterfs_get/glusterfs_get_async
* to read the whole content. Limit of the file-sizes to be read in
* glusterfs_get/glusterfs_get_async is passed in the size argument
*/
/* glusterfs_get:
* @handle : glusterfs handle
* @path : path to be looked upon
* @size : upper limit of file-sizes to be read in lookup
* @stbuf : attribute buffer
*/
int
glusterfs_get (glusterfs_handle_t handle, const char *path, void *buf,
size_t size, struct stat *stbuf);
int
glusterfs_get_async (glusterfs_handle_t handle, const char *path, size_t size,
glusterfs_get_cbk_t cbk, void *cbk_data);
glusterfs_file_t
glusterfs_open (glusterfs_handle_t handle, const char *path, int flags,
mode_t mode);
glusterfs_file_t
glusterfs_creat (glusterfs_handle_t handle, const char *path, mode_t mode);
int
glusterfs_mkdir (glusterfs_handle_t handle, const char *path, mode_t mode);
int
glusterfs_rmdir (glusterfs_handle_t handle, const char *path);
int
glusterfs_close (glusterfs_file_t fd);
int
glusterfs_stat (glusterfs_handle_t handle, const char *path,
struct stat *stbuf);
int
glusterfs_fstat (glusterfs_file_t fd, struct stat *stbuf);
int
glusterfs_setxattr (glusterfs_handle_t handle, const char *path,
const char *name, const void *value, size_t size,
int flags);
int
glusterfs_lsetxattr (glusterfs_handle_t handle, const char *path,
const char *name, const void *value, size_t size,
int flags);
int
glusterfs_fsetxattr (glusterfs_file_t fd, const char *name, const void *value,
size_t size, int flags);
ssize_t
glusterfs_getxattr (glusterfs_handle_t handle, const char *path,
const char *name, void *value, size_t size);
ssize_t
glusterfs_lgetxattr (glusterfs_handle_t handle, const char *path,
const char *name, void *value, size_t size);
ssize_t
glusterfs_fgetxattr (glusterfs_file_t fd, const char *name, void *value,
size_t size);
ssize_t
glusterfs_listxattr (glusterfs_handle_t handle, const char *path, char *list,
size_t size);
ssize_t
glusterfs_llistxattr (glusterfs_handle_t handle, const char *path, char *list,
size_t size);
ssize_t
glusterfs_flistxattr (glusterfs_file_t fd, char *list, size_t size);
int
glusterfs_removexattr (glusterfs_handle_t handle, const char *path,
const char *name);
int
glusterfs_lremovexattr (glusterfs_handle_t handle, const char *path,
const char *name);
int
glusterfs_fremovexattr (glusterfs_file_t fd, const char *name);
ssize_t
glusterfs_read (glusterfs_file_t fd, void *buf, size_t nbytes);
ssize_t
glusterfs_readv (glusterfs_file_t fd, const struct iovec *vec, int count);
int
glusterfs_read_async (glusterfs_file_t fd, size_t nbytes, off_t offset,
glusterfs_readv_cbk_t readv_cbk, void *cbk_data);
ssize_t
glusterfs_write (glusterfs_file_t fd, const void *buf, size_t nbytes);
ssize_t
glusterfs_writev (glusterfs_file_t fd, const struct iovec *vector, int count);
int
glusterfs_write_async (glusterfs_file_t fd, const void *buf, size_t nbytes,
off_t offset, glusterfs_write_cbk_t write_cbk,
void *cbk_data);
int
glusterfs_writev_async (glusterfs_file_t fd, const struct iovec *vector,
int count, off_t offset,
glusterfs_write_cbk_t write_cbk, void *cbk_data);
ssize_t
glusterfs_pread (glusterfs_file_t fd, void *buf, size_t nbytes, off_t offset);
ssize_t
glusterfs_pwrite (glusterfs_file_t fd, const void *buf, size_t nbytes,
off_t offset);
off_t
glusterfs_lseek (glusterfs_file_t fd, off_t offset, int whence);
int
glusterfs_mkdir (glusterfs_handle_t handle, const char *path, mode_t mode);
int
glusterfs_rmdir (glusterfs_handle_t handle, const char *path);
/* FIXME: implement man 3 readdir semantics */
int
glusterfs_readdir (glusterfs_dir_t fd, struct dirent *dirp,
unsigned int count);
/* FIXME: remove getdents */
int
glusterfs_getdents (glusterfs_dir_t fd, struct dirent *dirp,
unsigned int count);
int
glusterfs_mknod(glusterfs_handle_t handle, const char *pathname, mode_t mode,
dev_t dev);
/* FIXME: review the need for these apis */
/* added for log related initialization in booster fork implementation */
void
glusterfs_reset (void);
void
glusterfs_log_lock (void);
void
glusterfs_log_unlock (void);
__END_DECLS
#endif /* !_LIBGLUSTERFSCLIENT_H */
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