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libglusterfsclient: Add statfs API

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Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
This commit is contained in:
Shehjar Tikoo 2009-04-16 23:56:29 -07:00 committed by Anand V. Avati
parent f199ebf5d0
commit ff2bacf346
1 changed files with 99 additions and 0 deletions
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99
libglusterfsclient/src/libglusterfsclient.c
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@ -40,6 +40,7 @@
#include "libglusterfsclient-internals.h"
#include "compat.h"
#include "compat-errno.h"
#include <sys/vfs.h>
#define LIBGF_XL_NAME "libglusterfsclient"
#define LIBGLUSTERFS_INODE_TABLE_LRU_LIMIT 1000 //14057
@ -3957,6 +3958,104 @@ out:
return op_ret;
}
int32_t
libgf_client_statfs_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, struct statvfs *buf)
{
libgf_client_local_t *local = frame->local;
local->reply_stub = fop_statfs_cbk_stub (frame, NULL, op_ret, op_errno,
buf);
LIBGF_REPLY_NOTIFY (local);
return 0;
}
int32_t
libgf_client_statvfs (libglusterfs_client_ctx_t *ctx, loc_t *loc,
struct statvfs *buf)
{
call_stub_t *stub = NULL;
libgf_client_local_t *local = NULL;
int32_t op_ret = -1;
/* statfs fop receives struct statvfs as an argument */
/* libgf_client_statfs_cbk will be the callback, not
libgf_client_statvfs_cbk. see definition of LIBGF_CLIENT_FOP
*/
LIBGF_CLIENT_FOP (ctx, stub, statfs, local, loc);
op_ret = stub->args.statfs_cbk.op_ret;
errno = stub->args.statfs_cbk.op_errno;
if (op_ret == -1)
goto out;
if (buf)
memcpy (buf, &stub->args.statfs_cbk.buf, sizeof (*buf));
out:
call_stub_destroy (stub);
return op_ret;
}
int
glusterfs_statfs (glusterfs_handle_t handle, const char *path,
struct statfs *buf)
{
struct statvfs stvfs = {0, };
int32_t op_ret = -1;
loc_t loc = {0, };
libglusterfs_client_ctx_t *ctx = handle;
char *name = NULL;
GF_VALIDATE_OR_GOTO (LIBGF_XL_NAME, ctx, out);
GF_VALIDATE_ABSOLUTE_PATH_OR_GOTO (LIBGF_XL_NAME, path, out);
loc.path = strdup (path);
op_ret = libgf_client_path_lookup (&loc, ctx, 1);
if (op_ret == -1) {
gf_log ("libglusterfsclient", GF_LOG_ERROR,
"path lookup failed for (%s)", path);
goto out;
}
name = strdup (path);
op_ret = libgf_client_loc_fill (&loc, ctx, 0, loc.parent->ino,
basename (name));
if (op_ret == -1) {
gf_log ("libglusterfsclient", GF_LOG_ERROR,
"libgf_client_loc_fill returned -1, "
"returning EINVAL");
errno = EINVAL;
goto out;
}
op_ret = libgf_client_statvfs (ctx, &loc, &stvfs);
if (op_ret == 0) {
buf->f_type = 0;
buf->f_bsize = stvfs.f_bsize;
buf->f_blocks = stvfs.f_blocks;
buf->f_bfree = stvfs.f_bfree;
buf->f_bavail = stvfs.f_bavail;
buf->f_files = stvfs.f_bavail;
buf->f_ffree = stvfs.f_ffree;
/* FIXME: buf->f_fsid has either "val" or "__val" as member
based on conditional macro expansion. see definition of
fsid_t - Raghu
It seems have different structure member names on
different archs, so I am stepping down to doing a struct
to struct copy. :Shehjar
*/
memcpy (&buf->f_fsid, &stvfs.f_fsid, sizeof (stvfs.f_fsid));
buf->f_namelen = stvfs.f_namemax;
}
out:
if (name)
FREE (name);
libgf_client_loc_wipe (&loc);
return op_ret;
}
static struct xlator_fops libgf_client_fops = {
};