xref: /xnu-11417.140.69/libsyscall/mach/port_obj.c (revision 43a90889846e00bfb5cf1d255cdc0a701a1e05a4)
1*43a90889SApple OSS Distributions /*
2*43a90889SApple OSS Distributions  * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
3*43a90889SApple OSS Distributions  *
4*43a90889SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*43a90889SApple OSS Distributions  *
6*43a90889SApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*43a90889SApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*43a90889SApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
9*43a90889SApple OSS Distributions  * compliance with the License. The rights granted to you under the License
10*43a90889SApple OSS Distributions  * may not be used to create, or enable the creation or redistribution of,
11*43a90889SApple OSS Distributions  * unlawful or unlicensed copies of an Apple operating system, or to
12*43a90889SApple OSS Distributions  * circumvent, violate, or enable the circumvention or violation of, any
13*43a90889SApple OSS Distributions  * terms of an Apple operating system software license agreement.
14*43a90889SApple OSS Distributions  *
15*43a90889SApple OSS Distributions  * Please obtain a copy of the License at
16*43a90889SApple OSS Distributions  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*43a90889SApple OSS Distributions  *
18*43a90889SApple OSS Distributions  * The Original Code and all software distributed under the License are
19*43a90889SApple OSS Distributions  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*43a90889SApple OSS Distributions  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*43a90889SApple OSS Distributions  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*43a90889SApple OSS Distributions  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*43a90889SApple OSS Distributions  * Please see the License for the specific language governing rights and
24*43a90889SApple OSS Distributions  * limitations under the License.
25*43a90889SApple OSS Distributions  *
26*43a90889SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*43a90889SApple OSS Distributions  */
28*43a90889SApple OSS Distributions /*
29*43a90889SApple OSS Distributions  * @OSF_COPYRIGHT@
30*43a90889SApple OSS Distributions  */
31*43a90889SApple OSS Distributions 
32*43a90889SApple OSS Distributions /*
33*43a90889SApple OSS Distributions  * Define a service to map from a kernel-generated port name
34*43a90889SApple OSS Distributions  * to server-defined "type" and "value" data to be associated
35*43a90889SApple OSS Distributions  * with the port.
36*43a90889SApple OSS Distributions  */
37*43a90889SApple OSS Distributions #include <mach/port_obj.h>
38*43a90889SApple OSS Distributions #include <mach/mach.h>
39*43a90889SApple OSS Distributions 
40*43a90889SApple OSS Distributions #define DEFAULT_TABLE_SIZE      (64 * 1024)
41*43a90889SApple OSS Distributions 
42*43a90889SApple OSS Distributions struct port_obj_tentry *port_obj_table;
43*43a90889SApple OSS Distributions int port_obj_table_size = DEFAULT_TABLE_SIZE;
44*43a90889SApple OSS Distributions 
45*43a90889SApple OSS Distributions void
port_obj_init(int maxsize)46*43a90889SApple OSS Distributions port_obj_init(int maxsize)
47*43a90889SApple OSS Distributions {
48*43a90889SApple OSS Distributions 	kern_return_t kr;
49*43a90889SApple OSS Distributions 
50*43a90889SApple OSS Distributions 	kr = vm_allocate(mach_task_self_,
51*43a90889SApple OSS Distributions 	    (vm_offset_t *)&port_obj_table,
52*43a90889SApple OSS Distributions 	    (vm_size_t)(maxsize * sizeof(*port_obj_table)),
53*43a90889SApple OSS Distributions 	    TRUE);
54*43a90889SApple OSS Distributions 	if (kr != KERN_SUCCESS) {
55*43a90889SApple OSS Distributions 		panic("port_obj_init: can't vm_allocate");
56*43a90889SApple OSS Distributions 	}
57*43a90889SApple OSS Distributions }
58