mes/include/mach/mach-init.h

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/* -*-comment-start: "//";comment-end:""-*-
* GNU Mes --- Maxwell Equations of Software
* Copyright © 1993-2016 Free Software Foundation, Inc.
* Copyright © 2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
*
* This file is part of GNU Mes.
*
* GNU Mes is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or (at
* your option) any later version.
*
* GNU Mes 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
*/
/** Commentary:
Taken from GNU C Library
Declarations and macros for the basic Mach things set at startup.
*/
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#ifndef _MACH_INIT_H
#define _MACH_INIT_H 1
#include <mach/mach_types.h>
/* Return the current task's task port. */
extern mach_port_t mach_task_self (void);
extern mach_port_t mach_host_self (void);
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/* Kernel page size. */
extern vm_size_t __vm_page_size;
extern vm_size_t vm_page_size;
/* Round the address X up to a page boundary. */
#define round_page(x) \
((((vm_offset_t) (x) + __vm_page_size - 1) / __vm_page_size) * \
__vm_page_size)
/* Truncate the address X down to a page boundary. */
#define trunc_page(x) \
((((vm_offset_t) (x)) / __vm_page_size) * __vm_page_size)
#endif /* mach_init.h */