src/basic/memfd-util.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 /***
   5   This file is part of systemd.
   6
   7   Copyright 2013 Lennart Poettering
   8
   9   systemd is free software; you can redistribute it and/or modify it
  10   under the terms of the GNU Lesser General Public License as published by
  11   the Free Software Foundation; either version 2.1 of the License, or
  12   (at your option) any later version.
  13
  14   systemd is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   Lesser General Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public License
  20   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  21 ***/
  22
  23 #include <inttypes.h>
  24 #include <stddef.h>
  25 #include <stdint.h>
  26 #include <sys/types.h>
  27
  28 int memfd_new(const char *name);
  29 int memfd_new_and_map(const char *name, size_t sz, void **p);
  30
  31 int memfd_map(int fd, uint64_t offset, size_t size, void **p);
  32
  33 int memfd_set_sealed(int fd);
  34 int memfd_get_sealed(int fd);
  35
  36 int memfd_get_size(int fd, uint64_t *sz);
  37 int memfd_set_size(int fd, uint64_t sz);