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/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once
/***
This file is part of systemd.
Copyright 2013 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include "sd-bus.h"
#define MEMFD_CACHE_MAX 32
/* When we cache a memfd block for reuse, we will truncate blocks
* longer than this in order not to keep too much data around. */
#define MEMFD_CACHE_ITEM_SIZE_MAX (128*1024)
/* This determines at which minimum size we prefer sending memfds over
* sending vectors */
#define MEMFD_MIN_SIZE (512*1024)
struct memfd_cache {
int fd;
void *address;
size_t mapped;
size_t allocated;
};
#if 0 /// UNNEEDED by elogind
#endif // 0
void close_and_munmap(int fd, void *address, size_t size);
void bus_flush_memfd(sd_bus *bus);
#if 0 /// UNNEEDED by elogind
#endif // 0
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