From 5e0b8d508ed51004bd836384293be00950ee62c9 Mon Sep 17 00:00:00 2001 From: Pasha Date: Tue, 20 Feb 2024 18:49:50 +0000 Subject: init gnumach copy --- include/mach/memory_object.h | 90 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 include/mach/memory_object.h (limited to 'include/mach/memory_object.h') diff --git a/include/mach/memory_object.h b/include/mach/memory_object.h new file mode 100644 index 0000000..7e0c374 --- /dev/null +++ b/include/mach/memory_object.h @@ -0,0 +1,90 @@ +/* + * Mach Operating System + * Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University + * All Rights Reserved. + * + * Permission to use, copy, modify and distribute this software and its + * documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR + * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie Mellon + * the rights to redistribute these changes. + */ +/* + * File: memory_object.h + * Author: Michael Wayne Young + * + * External memory management interface definition. + */ + +#ifndef _MACH_MEMORY_OBJECT_H_ +#define _MACH_MEMORY_OBJECT_H_ + +/* + * User-visible types used in the external memory + * management interface: + */ + +#include + +#ifdef MACH_KERNEL +#include +typedef ipc_port_t memory_object_t; +#else +typedef mach_port_t memory_object_t; +#endif + /* Represents a memory object ... */ + /* Used by user programs to specify */ + /* the object to map; used by the */ + /* kernel to retrieve or store data */ + +typedef memory_object_t *memory_object_array_t; + +typedef mach_port_t memory_object_control_t; + /* Provided to a memory manager; ... */ + /* used to control a memory object */ + +typedef mach_port_t memory_object_name_t; + /* Used to describe the memory ... */ + /* object in vm_regions() calls */ + +typedef int memory_object_copy_strategy_t; + /* How memory manager handles copy: */ +#define MEMORY_OBJECT_COPY_NONE 0 + /* ... No special support */ +#define MEMORY_OBJECT_COPY_CALL 1 + /* ... Make call on memory manager */ +#define MEMORY_OBJECT_COPY_DELAY 2 + /* ... Memory manager doesn't ... */ + /* change data externally. */ +#define MEMORY_OBJECT_COPY_TEMPORARY 3 + /* ... Memory manager doesn't ... */ + /* change data externally, and */ + /* doesn't need to see changes. */ + +typedef int memory_object_return_t; + /* Which pages to return to manager + this time (lock_request) */ +#define MEMORY_OBJECT_RETURN_NONE 0 + /* ... don't return any. */ +#define MEMORY_OBJECT_RETURN_DIRTY 1 + /* ... only dirty pages. */ +#define MEMORY_OBJECT_RETURN_ALL 2 + /* ... dirty and precious pages. */ + +#define MEMORY_OBJECT_NULL MACH_PORT_NULL + +#endif /* _MACH_MEMORY_OBJECT_H_ */ -- cgit v1.2.1