1*f6217f89SApple OSS Distributions /*
2*f6217f89SApple OSS Distributions * Copyright (c) 2024 Apple Computer, Inc. All rights reserved.
3*f6217f89SApple OSS Distributions *
4*f6217f89SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*f6217f89SApple OSS Distributions *
6*f6217f89SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*f6217f89SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*f6217f89SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*f6217f89SApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*f6217f89SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*f6217f89SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*f6217f89SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*f6217f89SApple OSS Distributions * terms of an Apple operating system software license agreement.
14*f6217f89SApple OSS Distributions *
15*f6217f89SApple OSS Distributions * Please obtain a copy of the License at
16*f6217f89SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*f6217f89SApple OSS Distributions *
18*f6217f89SApple OSS Distributions * The Original Code and all software distributed under the License are
19*f6217f89SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*f6217f89SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*f6217f89SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*f6217f89SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*f6217f89SApple OSS Distributions * Please see the License for the specific language governing rights and
24*f6217f89SApple OSS Distributions * limitations under the License.
25*f6217f89SApple OSS Distributions *
26*f6217f89SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*f6217f89SApple OSS Distributions */
28*f6217f89SApple OSS Distributions #include <darwintest.h>
29*f6217f89SApple OSS Distributions #include <stdint.h>
30*f6217f89SApple OSS Distributions #include <sys/proc_info.h>
31*f6217f89SApple OSS Distributions #include <libproc.h>
32*f6217f89SApple OSS Distributions
33*f6217f89SApple OSS Distributions /** Retrieve current CSW count for the calling PID. */
34*f6217f89SApple OSS Distributions static int32_t
get_csw_count(void)35*f6217f89SApple OSS Distributions get_csw_count(void)
36*f6217f89SApple OSS Distributions {
37*f6217f89SApple OSS Distributions struct proc_taskinfo taskinfo;
38*f6217f89SApple OSS Distributions int rv;
39*f6217f89SApple OSS Distributions
40*f6217f89SApple OSS Distributions rv = proc_pidinfo(getpid(), PROC_PIDTASKINFO, 0, &taskinfo, sizeof(taskinfo));
41*f6217f89SApple OSS Distributions T_QUIET; T_ASSERT_POSIX_SUCCESS(rv, "PROC_PIDTASKINFO");
42*f6217f89SApple OSS Distributions
43*f6217f89SApple OSS Distributions return taskinfo.pti_csw;
44*f6217f89SApple OSS Distributions }
45