core: remove the unused files - round 2

BUG: 764890
Change-Id: I3eb626eeaa2a09f0e248444f560c2a0eaf46c642
Signed-off-by: Amar Tumballi <amarts@redhat.com>
Reviewed-on: http://review.gluster.com/3660
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>

1 files changed, 0 insertions, 1363 deletions

diff --git a/libglusterfsclient/src/libglusterfsclient.h b/libglusterfsclient/src/libglusterfsclient.h
deleted file mode 100755
index 1691a2faad3..00000000000
--- a/libglusterfsclient/src/libglusterfsclient.h
+++ /dev/null
@@ -1,1363 +0,0 @@
-/*
-  Copyright (c) 2008-2012 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 _LIBGLUSTERFSCLIENT_H
-#define _LIBGLUSTERFSCLIENT_H
-
-#ifndef __BEGIN_DECLS
-#ifdef __cplusplus
-#define __BEGIN_DECLS extern "C" {
-#else
-#define __BEGIN_DECLS
-#endif
-#endif
-
-#ifndef __END_DECLS
-#ifdef __cplusplus
-#define __END_DECLS }
-#else
-#define __END_DECLS
-#endif
-#endif
-
-
-__BEGIN_DECLS
-
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <dirent.h>
-#include <sys/statfs.h>
-#include <sys/statvfs.h>
-#include <utime.h>
-#include <sys/time.h>
-#include <stdint.h>
-
-typedef struct {
-        struct iovec *vector;
-        int           count;
-        void         *iobref;
-        void         *dictref;
-} glusterfs_iobuf_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);
-
-
-/* Data Interface
- * The first section describes the data structures required for
- * using libglusterfsclient.
- */
-
-/* This structure needs to be filled up and
- * passed to te glusterfs_init function which uses
- * the params passed herein to initialize a glusterfs
- * client context and then connect to a glusterfs server.
- */
-typedef struct {
-        char          *logfile;         /* Path to the file which will store
-                                           the log.
-                                           */
-        char          *loglevel;        /* The log level required for
-                                           reporting various events within
-                                           libglusterfsclient.
-                                           */
-        struct {
-                char  *specfile;        /* Users can either open a volume or
-                                           specfile and assign the pointer to
-                                           specfp, or just refer to the volume
-                                           /spec file path in specfile.
-                                           */
-                FILE  *specfp;
-        };
-        char          *volume_name;     /* The volume file could describe many
-                                           volumes but the specific volume
-                                           within that file is chosen by
-                                           specifying the volume name here.
-                                           */
-        unsigned long  lookup_timeout;  /* libglusterclient provides the inode
-                                           numbers to be cached by the library.
-                                           The duration for which these are
-                                           cached are defined by lookup_timeout
-                                           . In Seconds.
-                                           */
-        unsigned long  stat_timeout;    /* The file attributes received from
-                                           a stat syscall can also be cached
-                                           for the duration specified in this
-                                           member. In Seconds.
-                                           */
-} glusterfs_init_params_t;
-
-
-
-/* This is the handle returned by glusterfs_init
- * once the initialization is complete.
- * Users should treat this as an opaque handle.
- */
-typedef void * glusterfs_handle_t;
-
-
-
-/* These identifiers are used as handles for files and dirs.
- * Users of libglusterfsclient should not in anyway try to interpret
- * the actual structures these will point to.
- */
-typedef void * glusterfs_file_t;
-typedef void * glusterfs_dir_t;
-
-
-/* Function Call Interface */
-/* libglusterfsclient initialization function.
- * @ctx : the structure described above filled with required values.
- * @fakefsid: User generated fsid to be used to identify this
- * volume.
- *
- * Returns NULL on failure and the non-NULL pointer on success.
- * On failure, the error description might be present in the logfile
- * depending on the log level.
- */
-glusterfs_handle_t
-glusterfs_init (glusterfs_init_params_t *ctx, uint32_t fakefsid);
-
-
-
-/* Used to destroy a glusterfs client context and the
- * connection to the glusterfs server.
- *
- * @handle      : The glusterfs handle returned by glusterfs_init.
- */
-int
-glusterfs_fini (glusterfs_handle_t handle);
-
-
-
-/* libglusterfs client provides two interfaces.
- * 1. handle-based interface
- * Functions that comprise the handle-based interface accept the
- * glusterfs_handle_t as the first argument. It specifies the
- * glusterfs client context over which to perform the operation.
- *
- * 2. Virtual Mount Point based interface:
- * Functions that do not require a handle to be given in order to
- * identify which client context to operate on. This interface
- * internally determines the corresponding client context for the
- * given path. The down-side is that a virtual mount point (VMP) needs to be
- * registered with the library. A VMP is just a string that maps to a
- * glusterfs_handle_t. The advantage of a VMP based interface is that
- * a user program using multiple client contexts does not need to
- * maintain its own mapping between paths and the corresponding
- * handles.
- */
-
-
-
-/* glusterfs_mount is the function that allows users to register a VMP
- * along with the parameters, which will be used to initialize a
- * context. Applications calling glusterfs_mount do not need to
- * initialized a context using the glusterfs_init interface.
- *
- * @vmp         : The virtual mount point.
- * @ipars       : Initialization parameters populated as described
- *              earlier.
- *
- * Returns 0 on success, and -1 on failure.
- */
-int
-glusterfs_mount (char *vmp, glusterfs_init_params_t *ipars);
-
-
-
-/* glusterfs_umount is the VMP equivalent of glusterfs_fini.
- *
- * @vmp         : The VMP which was initialized using glusterfs_mount.
- *
- * Returns 0 on sucess, and -1 on failure.
- */
-int
-glusterfs_umount (char *vmp);
-
-
-/* glusterfs_umount_all unmounts all the mounts */
-int
-glusterfs_umount_all (void);
-
-
-/* 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_glh_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_glh_get (glusterfs_handle_t handle, const char *path, void *buf,
-	       size_t size, struct stat *stbuf);
-
-int
-glusterfs_get (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);
-
-
-
-/* Opens a file. Corresponds to the open syscall.
- *
- * @handle      : Handle returned from glusterfs_init
- * @path        : Path to the file or directory on the glusterfs
- *              export. Must be absolute to the export on the server.
- * @flags       : flags to control open behaviour.
- * @...         : The mode_t argument that defines the mode for a new
- *              file, in case a new file is being created using the
- *              O_CREAT flag in @flags.
- *
- * Returns a non-NULL handle on success. NULL on failure and sets
- * errno accordingly.
- */
-glusterfs_file_t
-glusterfs_glh_open (glusterfs_handle_t handle, const char *path, int flags,
-                        ...);
-
-
-/* Opens a file without having to specify a handle.
- *
- * @path        : Path to the file to open in the glusterfs export.
- *              The path to the file in glusterfs export must be
- *              pre-fixed with the VMP string registered with
- *              glusterfs_mount.
- * @flags       : flags to control open behaviour.
- * @...         : The mode_t argument that defines the mode for a new
- *              file, in case a new file is being created using the
- *              O_CREAT flag in @flags.
- *
- * Returns 0 on success, -1 on failure with errno set accordingly.
- */
-glusterfs_file_t
-glusterfs_open (const char *path, int flags, ...);
-
-
-
-/* Creates a file. Corresponds to the creat syscall.
- *
- * @handle      : Handle returned from glusterfs_init
- * @path        : Path to the file that needs to be created in the
- *              glusterfs export.
- * @mode        : File creation mode.
- *
- * Returns the file handle on success. NULL on error with errno set as
- * required.
- */
-glusterfs_file_t
-glusterfs_glh_creat (glusterfs_handle_t handle, const char *path, mode_t mode);
-
-
-
-/* VMP-based creat.
- * @path        : Path to the file to be created. Must be
- *              pre-prepended with the VMP string registered with
- *              glusterfs_mount.
- * @mode        : File creation mode.
- *
- * Returns file handle on success. NULL handle on error with errno set
- * accordingly.
- */
-glusterfs_file_t
-glusterfs_creat (const char *path, mode_t mode);
-
-
-
-/* Close the file identified by the handle.
- *
- * @fd          : Closes the file.
- *
- * Returns 0 on success, -1 on error with errno set accordingly.
- */
-int
-glusterfs_close (glusterfs_file_t fd);
-
-
-
-/* Get struct stat for the file in path.
- *
- * @handle      : The handle that identifies a glusterfs client
- *              context.
- * @path        : The file for which we need to get struct stat.
- * @stbuf       : The buffer into which the file's stat is copied.
- *
- * Returns 0 on success and -1 on error with errno set accordingly.
- */
-int
-glusterfs_glh_stat (glusterfs_handle_t handle, const char *path,
-                        struct stat *stbuf);
-
-
-/* Get struct stat for file in path.
- *
- * @path        : The file for which struct stat is required.
- * @sbuf        : The buffer into which the stat structure is copied.
- *
- * Returns 0 on success and -1 on error with errno set accordingly.
- */
-int
-glusterfs_stat (const char *path, struct stat *buf);
-
-
-
-/* Gets stat struct for the file.
- *
- * @handle      : The handle identifying a glusterfs client context.
- * @path        : Path to the file for which stat structure is
- *              required. If path is a symlink, the symlink is
- *              interpreted and the stat structure returned for the
- *              target of the link.
- * @buf         : The buffer into which the stat structure is copied.
- *
- * Returns 0 on success and -1 on error with errno set accordingly.
- */
-int
-glusterfs_glh_lstat (glusterfs_handle_t handle, const char *path,
-                        struct stat *buf);
-
-
-
-/* Gets stat struct for a file.
- *
- * @path        : The file to get the struct stat for.
- * @buf         : The receiving struct stat buffer.
- *
- * Returns 0 on success and -1 on error with errno set accordingly.
- */
-int
-glusterfs_lstat (const char *path, struct stat *buf);
-
-
-
-/* Get stat structure for a file.
- *
- * @fd          : The file handle identifying a file on the glusterfs
- *              server.
- * @stbuf       : The buffer into which the stat data is copied.
- *
- * Returns 0 on success and -1 on error with errno set accordingly.
- */
-int
-glusterfs_fstat (glusterfs_file_t fd, struct stat *stbuf);
-
-int
-glusterfs_glh_setxattr (glusterfs_handle_t handle, const char *path,
-                                const char *name, const void *value,
-                                size_t size, int flags);
-
-int
-glusterfs_glh_lsetxattr (glusterfs_handle_t handle, const char *path,
-                         const char *name, const void *value, size_t size,
-                         int flags);
-
-int
-glusterfs_setxattr (const char *path, const char *name, const void *value,
-                        size_t size, int flags);
-
-int
-glusterfs_lsetxattr (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_glh_getxattr (glusterfs_handle_t handle, const char *path,
-		        const char *name, void *value, size_t size);
-
-ssize_t
-glusterfs_glh_lgetxattr (glusterfs_handle_t handle, const char *path,
-		         const char *name, void *value, size_t size);
-
-ssize_t
-glusterfs_getxattr (const char *path, const char *name, void *value,
-                        size_t size);
-
-ssize_t
-glusterfs_lgetxattr (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);
-
-
-
-/* Read data from a file.
- * @fd          : Handle returned by glusterfs_open or
- *              glusterfs_glh_open.
- * @buf         : Buffer to read the data into.
- * @nbytes      : Number of bytes to read.
- *
- * Returns number of bytes actually read on success or -1 on error
- * with errno set to the appropriate error number.
- */
-ssize_t
-glusterfs_read (glusterfs_file_t fd, void *buf, size_t nbytes);
-
-
-
-/* Read data into an array of buffers.
- *
- * @fd          : File handle returned by glusterfs_open or
- *              glusterfs_glh_open.
- * @vec         : Array of buffers into which the data is read.
- * @count       : Number of iovecs referred to by vec.
- *
- * Returns number of bytes read on success or -1 on error with errno
- * set appropriately.
- */
-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);
-
-
-
-/* Write data into a file.
- *
- * @fd          : File handle returned from glusterfs_open or
- *              glusterfs_glh_open.
- * @buf         : Buffer which is written to the file.
- * @nbytes      : Number bytes of the @buf written to the file.
- *
- * On success, returns number of bytes written. On error, returns -1
- * with errno set appropriately.
- */
-ssize_t
-glusterfs_write (glusterfs_file_t fd, const void *buf, size_t nbytes);
-
-
-
-/* Writes an array of buffers into a file.
- *
- * @fd          : The file handle returned from glusterfs_open or
- *              glusterfs_glh_open.
- * @vector      : Array of buffers to be written to the file.
- * @count       : Number of separate buffers in the @vector array.
- *
- * Returns number of bytes written on success or -1 on error with
- * errno set approriately.
- */
-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);
-
-
-
-/* Read from a file starting at a given offset.
- *
- * @fd          : File handle returned from glusterfs_open or
- *              glusterfs_glh_open.
- * @buf         : Buffer to read the data into.
- * @nbytes      : Number of bytes to read.
- * @offset      : The offset to start reading @nbytes from.
- *
- * Returns number of bytes read on success or -1 on error with errno
- * set appropriately.
- */
-ssize_t
-glusterfs_pread (glusterfs_file_t fd, void *buf, size_t nbytes, off_t offset);
-
-
-
-/* Write to a file starting at a given offset.
- *
- * @fd          : Flie handle returned from glusterfs_open or
- *              glusterfs_glh_open.
- * @buf         : Buffer that will be written to the file.
- * @nbytes      : Number of bytes to write from @buf.
- * @offset      : The starting offset from where @nbytes will be
- *              written.
- *
- * Returns number of bytes written on success and -1 on error with
- * errno set appropriately.
- */
-ssize_t
-glusterfs_pwrite (glusterfs_file_t fd, const void *buf, size_t nbytes,
-		  off_t offset);
-
-
-
-/* Seek to an offset in the file.
- *
- * @fd          : File handle in which to seek to. File handle
- *              returned by glusterfs_open or glusterfs_glh_open.
- * @offset      : Offset to seek to in the given file.
- * @whence      : Determines how the offset is interpreted by this
- *              syscall. The behaviour is similar to the options
- *              provided by the POSIX lseek system call. See man lseek
- *              for more details.
- *
- * On success, returns the resulting absolute offset in the file after the seek
- * operation is performed. ON error, returns -1 with errno set
- * appropriately.
- */
-off_t
-glusterfs_lseek (glusterfs_file_t fd, off_t offset, int whence);
-
-
-
-/* Create a directory.
- *
- * @handle      : The handle of the glusterfs context in which the
- *              directory needs to be created.
- * @path        : The absolute path within the glusterfs context where
- *              the directory needs to be created.
- * @mode        : The mode bits for the newly created directory.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_glh_mkdir (glusterfs_handle_t handle, const char *path, mode_t mode);
-
-
-
-/* Create a directory.
- *
- * @path        : Path to the directory that needs to be created. This
- *              path must be prefixed with the VMP of the particular glusterfs
- *              context.
- * @mode        : Mode flags for the newly created directory.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_mkdir (const char *path, mode_t mode);
-
-
-
-/* Remove a directory.
- *
- * @handle      : Handle of the glusterfs context from which to remove
- *              the directory.
- * @path        : The path of the directory to be removed in the glusterfs
- *              context.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_glh_rmdir (glusterfs_handle_t handle, const char *path);
-
-
-
-/* Remove a directory.
- *
- * @path        : The absolute path to the directory to be removed.
- *              This path must be pre-fixed with the VMP of the
- *              particular glusterfs context in which this directory
- *              resides.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_rmdir (const char *path);
-
-
-
-/* Read directory entries.
- *
- * @fd          : The handle of the directory to be read. This handle
- *              is the one returned by opendir.
- *
- * Returns the directory entry on success and NULL pointer on error
- * with errno set appropriately.
- */
-void *
-glusterfs_readdir (glusterfs_dir_t dirfd);
-
-
-
-/* re-entrant version of glusterfs_readdir.
- *
- * @dirfd       : The handle of directory to be read. This handle is the one
- *                returned by opendir.
- * @entry       : Pointer to storage to store a directory entry. The storage
- *                pointed to by entry shall be large enough for a dirent with 
- *                an array of char d_name members containing at least
- *                {NAME_MAX}+1 elements.
- * @result      : Upon successful return, the pointer returned at *result shall
- *                have the same value as the argument entry. Upon reaching the
- *                end of the directory stream, this pointer shall have the
- *                value NULL.
- */
-int
-glusterfs_readdir_r (glusterfs_dir_t dirfd, struct dirent *entry,
-                     struct dirent **result);
-
-/* Close a directory handle.
- *
- * @fd          : The directory handle to be closed.
- *
- * Returns 0 on success and -1 on error with errno set to 0.
- */
-int
-glusterfs_closedir (glusterfs_dir_t dirfd);
-/* FIXME: remove getdents */
-int
-glusterfs_getdents (glusterfs_dir_t fd, struct dirent *dirp,
-		    unsigned int count);
-
-
-
-/* Create device node.
- *
- * @handle      : glusterfs context in which to create the device
- *              node.
- * @pathname    : The absolute path of the device to be created in the
- *              given glusterfs context.
- *
- * @mode        : Mode flags to apply to the newly created node.
- * @dev         : Device numbers that will apply to the node.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_glh_mknod(glusterfs_handle_t handle, const char *pathname,
-                        mode_t mode, dev_t dev);
-
-
-
-/* Create a device node.
- *
- * @pathname    : The full path of the node to be created. This path
- *              should be pre-pended with the VMP of the glusterfs
- *              context in which this node is to be created.
- * @mode        : Mode flags that will be applied to the newly created
- *              device file.
- * @dev         : The device numbers that will be associated with the
- *              device node.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_mknod(const char *pathname, mode_t mode, dev_t dev);
-
-
-
-/* Returns the real absolute path of the given path.
- *
- * @handle              : The glusterfs context in which the path resides in.
- * @path                : The path to be resolved.
- * @resolved_path       : The resolved path is stored in this buffer
- *                      provided by the caller.
- *
- * Returns a pointer to resolved_path on success and NULL on error
- * with errno set appropriately.
- *
- * See man realpath for details.
- */
-char *
-glusterfs_glh_realpath (glusterfs_handle_t handle, const char *path,
-                        char *resolved_path);
-
-
-/* Returns the real absolute path of the given path.
- *
- * @path                : The path to be resolved. This path must be
- *                      pre-fixed with the VMP of the glusterfs
- *                      context in which the file resides.
- *
- * @resolved_path       : The resolved path is stored in this user
- *                      provided buffer.
- *
- * Returns a pointer to resolved_path on success, and NULL on error
- * with errno set appropriately.
- */
-char *
-glusterfs_realpath (const char *path, char *resolved_path);
-
-
-
-/* Change mode flags on a path.
- *
- * @handle      : Handle of the glusterfs instance in which the path
- *              resides.
- * @path        : The path whose mode bits need to be changed.
- * @mode        : The new mode bits.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_glh_chmod (glusterfs_handle_t handle, const char *path, mode_t mode);
-
-
-
-/* Change mode flags on a path.
- *
- * @path        : The path whose mode bits need to be changed. The
- *              path should be pre-fixed with the VMP that identifies the
- *              glusterfs context within which the path resides.
- * @mode        : The new mode bits.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_chmod (const char *path, mode_t mode);
-
-
-
-/* Change the owner of a path.
- * If @path is a symlink, it is dereferenced and the ownership change
- * happens on the target.
- *
- * @handle      : Handle of the glusterfs context in which the path
- *              resides.
- * @path        : The path whose owner needs to be changed.
- * @owner       : ID of the new owner.
- * @group       : ID of the new group.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_glh_chown (glusterfs_handle_t handle, const char *path, uid_t owner,
-                        gid_t group);
-
-
-
-/* Change the owner of a path.
- *
- * If @path is a symlink, it is dereferenced and the ownership change
- * happens on the target.
- * @path        : The path whose owner needs to be changed. Path must
- *              be pre-fixed with the VMP that identifies the
- *              glusterfs context in which the path resides.
- * @owner       : ID of the new owner.
- * @group       : ID of the new group.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_chown (const char *path, uid_t owner, gid_t group);
-
-
-
-/* Change the owner of the file.
- *
- * @fd          : Handle of the file whose owner needs to be changed.
- * @owner       : ID of the new owner.
- * @group       : ID of the new group.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_fchown (glusterfs_file_t fd, uid_t owner, gid_t group);
-
-
-
-/* Open a directory.
- *
- * @handle      : Handle that identifies a glusterfs context.
- * @path        : Path to the directory in the glusterfs context.
- *
- * Returns a non-NULL handle on success and NULL on failure with errno
- * set appropriately.
- */
-glusterfs_dir_t
-glusterfs_glh_opendir (glusterfs_handle_t handle, const char *path);
-
-
-
-/* Open a directory.
- *
- * @path        : Path to the directory. The path must be prepended
- *              with the VMP in order to identify the glusterfs
- *              context in which path resides.
- *
- * Returns a non-NULL handle on success and NULL on failure with errno
- * set appropriately.
- */
-glusterfs_dir_t
-glusterfs_opendir (const char *path);
-
-
-
-/* Change the mode bits on an open file.
- *
- * @fd          : The file whose mode bits need to be changed.
- * @mode        : The new mode bits.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_fchmod (glusterfs_file_t fd, mode_t mode);
-
-
-
-/* Sync the file contents to storage.
- *
- * @fd          : The file whose contents need to be sync'ed to
- *              storage.
- *
- * Return 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_fsync (glusterfs_file_t *fd);
-
-
-
-/* Truncate an open file.
- *
- * @fd          : The file to truncate.
- * @length      : The length to truncate to.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_ftruncate (glusterfs_file_t fd, off_t length);
-
-
-
-/* Create a hard link between two paths.
- *
- * @handle      : glusterfs context in which both paths should reside.
- * @oldpath     : The existing path to link to.
- * @newpath     : The new path which will be linked to @oldpath.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_glh_link (glusterfs_handle_t handle, const char *oldpath,
-                        const char *newpath);
-
-
-
-/* Create a hard link between two paths.
- *
- * @oldpath     : The existing path to link to.
- * @newpath     : The new path which will be linked to @oldpath.
- *
- * Both paths should exist on the same glusterfs context and should be
- * prefixed with the same VMP.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_link (const char *oldpath, const char *newpath);
-
-
-
-/* Get stats about the underlying file system.
- *
- * @handle      : Identifies the glusterfs context in which resides
- *              the given path.
- * @path        : stats are returned for the file system on which file
- *              is located.
- * @buf         : The buffer into which the stats are copied.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_glh_statfs (glusterfs_handle_t handle, const char *path,
-                        struct statfs *buf);
-
-
-
-/* Get stats about the underlying file system.
- *
- * @path        : stats are returned for the file system on which file
- *              is located. @path must start with the VMP of the
- *              glusterfs context on which the file reside.
- * @buf         : The buffer into which the stats are copied.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_statfs (const char *path, struct statfs *buf);
-
-
-
-/* Get stats about the underlying file system.
- *
- * @handle      : Identifies the glusterfs context in which resides
- *              the given path.
- * @path        : stats are returned for the file system on which file
- *              is located.
- * @buf         : The buffer into which the stats are copied.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_glh_statvfs (glusterfs_handle_t handle, const char *path,
-                   struct statvfs *buf);
-
-
-
-/* Get stats about the underlying file system.
- *
- * @path        : stats are returned for the file system on which file
- *              is located. @path must start with the VMP of the
- *              glusterfs context on which the file reside.
- * @buf         : The buffer into which the stats are copied.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_statvfs (const char *path, struct statvfs *buf);
-
-
-
-/* Set the atime and mtime values for a given path.
- *
- * @handle      : The handle identifying the glusterfs context.
- * @path        : The path for which the times need to be changed.
- * @times       : The array containing new time stamps for the file.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_glh_utimes (glusterfs_handle_t handle, const char *path,
-                        const struct timeval times[2]);
-
-
-
-/* Set the atime and mtime values for a given path.
- *
- * @path        : The path for which the times need to be changed.
- * @times       : The array containing new time stamps for the file.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_utimes (const char *path, const struct timeval times[2]);
-
-
-
-/* Set the atime and mtime values for a given path.
- *
- * @handle      : The handle identifying the glusterfs context.
- * @path        : The path for which the times need to be changed.
- * @buf         : The structure containing new time stamps for the file.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_glh_utime (glusterfs_handle_t handle, const char *path,
-                        const struct utimbuf *buf);
-
-
-
-/* Set the atime and mtime values for a given path.
- *
- * @path        : The path for which the times need to be changed.
- * @buf         : The structure containing new time stamps for the file.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_utime (const char *path, const struct utimbuf *buf);
-
-
-
-/*  Create  FIFO at the given path.
- *
- *  @handle     : The glusterfs context in which to create that FIFO.
- *  @path       : The path within the context where the FIFO is to be
- *              created.
- * @mode        : The mode bits for the newly create FIFO.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_glh_mkfifo (glusterfs_handle_t handle, const char *path,
-                        mode_t mode);
-
-
-
-/*  Create  FIFO at the given path.
- *
- *  @path       : The path within the context where the FIFO is to be
- *              created. @path should begin with the VMP of the
- *              glusterfs context in which the FIFO needs to be
- *              created.
- * @mode        : The mode bits for the newly create FIFO.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_mkfifo (const char *path, mode_t mode);
-
-
-
-/* Unlink a file.
- *
- * @handle      : Handle that identifies a glusterfs instance.
- * @path        : Path in the glusterfs instance that needs to be
- *              unlinked.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_glh_unlink (glusterfs_handle_t handle, const char *path);
-
-
-
-/* Unlink a file.
- *
- * @path        : Path in the glusterfs instance that needs to be
- *              unlinked.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_unlink (const char *path);
-
-
-
-/* Create a symbolic link.
- *
- * @handle      : The handle identifying the glusterfs context.
- * @oldpath     : The existing path to which a symlink needs to be
- *              created.
- * @newpath     : The new path which will be symlinked to the
- *              @oldpath.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_glh_symlink (glusterfs_handle_t handle, const char *oldpath,
-                                const char *newpath);
-
-
-
-/* Create a symbolic link.
- *
- * @oldpath     : The existing path to which a symlink needs to be
- *              created.
- * @newpath     : The new path which will be symlinked to the
- *              @oldpath.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_symlink (const char *oldpath, const char *newpath);
-
-
-
-/* Read a symbolic link.
- *
- * @handle      : Handle identifying the glusterfs context.
- * @path        : The symlink that needs to be read.
- * @buf         : The buffer into which the target of @path will be
- *              stored.
- * @bufsize     : Size of the buffer allocated to @buf.
- *
- * Returns number of bytes copied into @buf and -1 on error with errno
- * set appropriately.
- */
-ssize_t
-glusterfs_glh_readlink (glusterfs_handle_t handle, const char *path, char *buf,
-                                size_t bufsize);
-
-
-
-/* Read a symbolic link.
- *
- * @path        : The symlink that needs to be read.
- * @buf         : The buffer into which the target of @path will be
- *              stored.
- * @bufsize     : Size of the buffer allocated to @buf.
- *
- * Returns number of bytes copied into @buf and -1 on error with errno
- * set appropriately.
- */
-ssize_t
-glusterfs_readlink (const char *path, char *buf, size_t bufsize);
-
-
-
-/* Rename a file or directory.
- *
- * @handle      : The identifier of a glusterfs context.
- * @oldpath     : The path to be renamed.
- * @newpath     : The new name for the @oldpath.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_glh_rename (glusterfs_handle_t handle, const char *oldpath,
-                      const char *newpath);
-
-
-
-/* Rename a file or directory.
- * @oldpath     : The path to be renamed.
- * @newpath     : The new name for the @oldpath.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_rename (const char *oldpath, const char *newpath);
-
-
-
-/* Remove a file or directory in the given glusterfs context.
- *
- * @handle      : Handle identifying the glusterfs context.
- * @path        : Path of the file or directory to be removed.
- *
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_glh_remove (glusterfs_handle_t handle, const char *path);
-
-
-
-/* Remove a file or directory.
- *
- * @path        : Path of the file or directory to be removed. The
- *              path must be pre-fixed with the VMP.
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_remove (const char *path);
-
-
-
-/* Change the owner of the given path.
- *
- * If @path is a symlink, the ownership change happens on the symlink.
- *
- * @handle      : Handle identifying the glusterfs client context.
- * @path        : Path whose owner needs to be changed.
- * @owner       : New owner ID
- * @group       : New Group ID
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-int
-glusterfs_glh_lchown (glusterfs_handle_t handle, const char *path, uid_t owner,
-                      gid_t group);
-
-
-
-/* Change the owner of the given path.
- *
- * If @path is a symlink, the ownership change happens on the symlink.
- *
- * @path        : Path whose owner needs to be changed.
- * @owner       : New owner ID
- * @group       : New Group ID
- *
- * Returns 0 on success and -1 on error with errno set appropriately.
- */
-
-int
-glusterfs_lchown (const char *path, uid_t owner, gid_t group);
-
-
-
-/* Rewind directory stream pointer to beginning of the directory.
- *
- * @dirfd       : Directory handle returned by glusterfs_open on
- *              glusterfs_opendir.
- *
- * Returns no value.
- */
-void
-glusterfs_rewinddir (glusterfs_dir_t dirfd);
-
-
-
-/* Seek to the given offset in the directory handle.
- *
- * @dirfd       : Directory handle returned by glusterfs_open on
- *              glusterfs_opendir.
- * @offset      : The offset to seek to.
- *
- * Returns no value.
- */
-void
-glusterfs_seekdir (glusterfs_dir_t dirfd, off_t offset);
-
-
-
-/* Return the current offset in a directory stream.
- *
- * @dirfd       : Directory handle returned by glusterfs_open on
- *              glusterfs_opendir.
- *
- * Returns the offset in the directory or -1 on error with errno set
- * appropriately.
- */
-off_t
-glusterfs_telldir (glusterfs_dir_t dirfd);
-
-
-/* Write count bytes from in_fd to out_fd, starting at *offset.
- * glusterfs_sendfile aims at eliminating memory copy at the end of
- * each read from in_fd, copying the file directly to out_fd from the buffer 
- * provided by glusterfs.
- *
- * @out_fd: file descriptor opened for writing
- *
- * @in_fd: glusterfs file handle to the file to be read from.
- *
- * @offset: If offset is not NULL, then it points to a variable holding the file
- *          offset  from  which  glusterfs_sendfile()  will  start reading data
- *          from in_fd.  When glusterfs_sendfile() returns, this variable will 
- *          be set to the offset of the byte following the last byte that was 
- *          read.  If offset is  not  NULL, then glusterfs_sendfile()  does  not
- *          modify the current file offset of in_fd; otherwise the current file
- *          offset is adjusted to reflect the number of bytes read from in_fd.
- *
- * @count:  number of bytes to copy between the file descriptors.
- */
-
-ssize_t
-glusterfs_sendfile (int out_fd, glusterfs_file_t in_fd, off_t *offset,
-                    size_t count);
-
-/* manipulate file descriptor
- * This api can have 3 forms similar to fcntl(2).
- *
- * int
- * glusterfs_fcntl (glusterfs_file_t fd, int cmd)
- *
- * int
- * glusterfs_fcntl (glusterfs_file_t fd, int cmd, long arg)
- *
- * int
- * glusterfs_fcntl (glusterfs_file_t fd, int cmd, struct flock *lock)
- *
- * @fd   : file handle returned by glusterfs_open or glusterfs_create.
- * @cmd  : Though the aim is to implement all possible commands supported by
- *         fcntl(2), currently following commands are supported.
- *         F_SETLK, F_SETLKW, F_GETLK -  used to acquire, release, and test for
- *                                       the existence of record locks (also 
- *                                       known as file-segment or file-region
- *                                       locks). More detailed explanation is
- *                                       found in 'man 2 fcntl'
- */
-   
-int
-glusterfs_fcntl (glusterfs_file_t fd, int cmd, ...);
-
-/*
- * Change the current working directory to @path
- * 
- * @path  : path to change the current working directory to.
- *
- * Returns 0 on success and -1 on failure with errno set appropriately.
- */
-int
-glusterfs_chdir (const char *path);
-
-/*
- * Change the current working directory to the path @fd is opened on.
- *
- * @fd   : current working directory will be changed to path @fd is opened on.
- *
- * Returns 0 on success and -1 on  with errno set appropriately.
- */
-int
-glusterfs_fchdir (glusterfs_file_t fd);
-
-/* copies the current working directory into @buf if it is big enough
- *
- * @buf: buffer to copy into it. If @buf is NULL, a buffer will be allocated.
- *       The size of the buffer will be @size if it is not zero, otherwise the
- *       size will be big enough to hold the current working directory.
- * @size: size of the buffer.
- *
- * Returns the pointer to buffer holding current working directory on success
- * and NULL on failure.
- */
-
-char *
-glusterfs_getcwd (char *buf, size_t size);
-
-/*
- * Truncate the file to a specified length.
- *
- * @path   : path to the file.
- * @length : length to which the file has to be truncated.
- *
- * Returns 0 on success and -1 on failure with errno set appropriately 
- */
-
-int
-glusterfs_truncate (const char *path, off_t length);
-
-
-/* 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);
-/* Used to free the glusterfs_read_buf passed to the application from
-   glusterfs_read_async_cbk
-*/
-void
-glusterfs_free (glusterfs_iobuf_t *buf);
-
-__END_DECLS
-
-#endif /* !_LIBGLUSTERFSCLIENT_H */