fsal_rename.c

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/*
 * vim:expandtab:shiftwidth=8:tabstop=8:
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "fsal.h"
#include "fsal_internal.h"
#include "fsal_convert.h"
#include "fsal_common.h"

#include <hpss_errno.h>

fsal_status_t HPSSFSAL_rename(hpssfsal_handle_t * old_parentdir_handle, /* IN */
                              fsal_name_t * p_old_name, /* IN */
                              hpssfsal_handle_t * new_parentdir_handle, /* IN */
                              fsal_name_t * p_new_name, /* IN */
                              hpssfsal_op_context_t * p_context,        /* IN */
                              fsal_attrib_list_t * src_dir_attributes,  /* [ IN/OUT ] */
                              fsal_attrib_list_t * tgt_dir_attributes   /* [ IN/OUT ] */
    )
{

  int rc;

  /* sanity checks.
   * note : src/tgt_dir_attributes are optional.
   */
  if(!old_parentdir_handle ||
     !new_parentdir_handle || !p_old_name || !p_new_name || !p_context)
    Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_rename);

  TakeTokenFSCall();

  rc = hpss_RenameHandle(&(old_parentdir_handle->data.ns_handle),
                         p_old_name->name,
                         &(new_parentdir_handle->data.ns_handle),
                         p_new_name->name, &(p_context->credential.hpss_usercred));

  ReleaseTokenFSCall();

  /* convert the HPSS EEXIST error to the expected error ENOTEMPTY */
  if(rc == HPSS_EEXIST)
    Return(ERR_FSAL_NOTEMPTY, -rc, INDEX_FSAL_rename);

  /* the source or the target directory handles may be stale */
  if(rc == HPSS_ENOTDIR || rc == HPSS_ENOENT)
    {
      if(HPSSFSAL_IsStaleHandle(&old_parentdir_handle->data.ns_handle,
                                &p_context->credential.hpss_usercred) ||
         HPSSFSAL_IsStaleHandle(&new_parentdir_handle->data.ns_handle,
                                &p_context->credential.hpss_usercred))
        {
          Return(ERR_FSAL_STALE, -rc, INDEX_FSAL_rename);
        }
    }

  /* any other error */
  if(rc)
    Return(hpss2fsal_error(rc), -rc, INDEX_FSAL_rename);

  /* optionnaly get attributes */

  if(src_dir_attributes)
    {

      fsal_status_t st;

      st = HPSSFSAL_getattrs(old_parentdir_handle, p_context, src_dir_attributes);

      if(FSAL_IS_ERROR(st))
        {
          FSAL_CLEAR_MASK(src_dir_attributes->asked_attributes);
          FSAL_SET_MASK(src_dir_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
        }

    }

  if(tgt_dir_attributes)
    {

      fsal_status_t st;

      /* optimization: */

      if(!FSAL_handlecmp(old_parentdir_handle, new_parentdir_handle, &st)
         && src_dir_attributes)
        {

          /* If source dir = target dir, we just copy the attributes.
           * to avoid doing another getattr.
           */

          (*tgt_dir_attributes) = (*src_dir_attributes);

        }
      else
        {

          /* get attributes */
          st = HPSSFSAL_getattrs(new_parentdir_handle, p_context, tgt_dir_attributes);

          if(FSAL_IS_ERROR(st))
            {
              FSAL_CLEAR_MASK(tgt_dir_attributes->asked_attributes);
              FSAL_SET_MASK(tgt_dir_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
            }

        }

    }

  /* OK */
  Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_rename);

}