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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
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/types.h>
#include <sys/stat.h>
//#include <unistd.h>
#include <dirent.h>
#include <errno.h>
/* #include <logging.h> */
typedef struct {
int op_ret;
int op_errno;
struct iovec *vector;
int count;
void *ref;
}glusterfs_read_buf_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_ctx_t;
typedef struct libglusterfs_client_ctx *libglusterfs_handle_t;
typedef int (*glusterfs_readv_cbk_t) (glusterfs_read_buf_t *buf,
void *cbk_data);
typedef int (*glusterfs_writev_cbk_t) (int op_ret,
int op_errno,
void *cbk_data);
typedef int (*glusterfs_lookup_cbk_t) (int op_ret,
int op_errno,
void *buf,
struct stat *st,
void *cbk_data);
/* Used to free the glusterfs_read_buf passed to the application from glusterfs_read_async_cbk */
void
glusterfs_free (glusterfs_read_buf_t *buf);
/* libglusterfsclient initialization function */
libglusterfs_handle_t
glusterfs_init (glusterfs_init_ctx_t *ctx);
int
glusterfs_fini (libglusterfs_handle_t handle);
/* added for log related initialization for fork implementation in booster */
void
glusterfs_reset (void);
void
glusterfs_log_lock (void);
void
glusterfs_log_unlock (void);
/* For smaller files, application can use just glusterfs_lookup/glusterfs_lookup_async to read
* the whole content. Limit of the file-sizes to be read in
* glusterfs_lookup/glusterfs_lookup_async is passed in the size argument */
/* glusterfs_lookup:
* @handle: glusterfs handle
* @path: path to be looked upon
* @buf: pointer to pre-allocated buf, in which the file content is returned for files with sizes * less than the size argument.
* @size: upper limit of file-sizes to be read in lookup
* @stbuf: stat buffer
*/
int
glusterfs_lookup (libglusterfs_handle_t handle,
const char *path,
void *buf,
size_t size,
struct stat *stbuf);
int
glusterfs_lookup_async (libglusterfs_handle_t handle,
const char *path,
void *buf,
size_t size,
glusterfs_lookup_cbk_t cbk,
void *cbk_data);
unsigned long
glusterfs_open (libglusterfs_handle_t handle,
const char *path,
int flags,
mode_t mode);
unsigned long
glusterfs_creat (libglusterfs_handle_t handle,
const char *path,
mode_t mode);
int
glusterfs_close (unsigned long fd);
int
glusterfs_stat (libglusterfs_handle_t handle,
const char *path,
struct stat *buf);
int
glusterfs_fstat (unsigned long fd,
struct stat *buf) ;
int
glusterfs_setxattr (libglusterfs_handle_t handle,
const char *path,
const char *name,
const void *value,
size_t size,
int flags);
int
glusterfs_lsetxattr (libglusterfs_handle_t handle,
const char *path,
const char *name,
const void *value,
size_t size,
int flags);
int
glusterfs_fsetxattr (unsigned long fd,
const char *name,
const void *value,
size_t size,
int flags);
ssize_t
glusterfs_getxattr (libglusterfs_handle_t handle,
const char *path,
const char *name,
void *value,
size_t size);
ssize_t
glusterfs_lgetxattr (libglusterfs_handle_t handle,
const char *path,
const char *name,
void *value,
size_t size);
ssize_t
glusterfs_fgetxattr (unsigned long fd,
const char *name,
void *value,
size_t size);
ssize_t
glusterfs_listxattr (libglusterfs_handle_t handle,
const char *path,
char *list,
size_t size);
ssize_t
glusterfs_llistxattr (libglusterfs_handle_t handle,
const char *path,
char *list,
size_t size);
ssize_t
glusterfs_flistxattr (unsigned long fd,
char *list,
size_t size);
int
glusterfs_removexattr (libglusterfs_handle_t handle,
const char *path,
const char *name);
int
glusterfs_lremovexattr (libglusterfs_handle_t handle,
const char *path,
const char *name);
int
glusterfs_fremovexattr (unsigned long fd,
const char *name);
ssize_t
glusterfs_read (unsigned long fd,
void *buf,
size_t nbytes);
ssize_t
glusterfs_readv (unsigned long fd,
const struct iovec *vec,
int count);
int
glusterfs_read_async (unsigned long fd,
size_t nbytes,
off_t offset,
glusterfs_readv_cbk_t readv_cbk,
void *cbk_data);
ssize_t
glusterfs_write (unsigned long fd,
const void *buf,
size_t n);
ssize_t
glusterfs_writev (unsigned long fd,
const struct iovec *vector,
size_t count);
int
glusterfs_write_async (unsigned long fd,
const void *buf,
size_t nbytes,
off_t offset,
glusterfs_writev_cbk_t writev_cbk,
void *cbk_data);
int
glusterfs_readdir (unsigned long fd,
struct dirent *dirp,
unsigned int count);
int
glusterfs_getdents (unsigned long fd,
struct dirent *dirp,
unsigned int count);
ssize_t
glusterfs_pread (unsigned long fd,
void *buf,
size_t count,
off_t offset);
ssize_t
glusterfs_pwrite (unsigned long fd,
const void *buf,
size_t count,
off_t offset);
off_t
glusterfs_lseek (unsigned long fd, off_t offset, int whence);
#ifdef __cplusplus
}
#endif
#endif
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