1 /* 2 * Copyright (c) 2000-2021 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 29 #ifndef _SYS_RESOURCE_PRIVATE_H_ 30 #define _SYS_RESOURCE_PRIVATE_H_ 31 32 #include <os/base.h> 33 #include <stdint.h> 34 #include <sys/cdefs.h> 35 36 /* 37 * The kind of counters to copy into the destination buffer with 38 * `thread_selfcounts`. 39 */ 40 __enum_decl(thread_selfcounts_kind_t, uint32_t, { 41 THSC_CPI = 0x01, 42 }); 43 44 /* 45 * The data structure expected by `thread_selfcounts(THSC_CPI, ...)`. 46 */ 47 struct thsc_cpi { 48 uint64_t tcpi_instructions; 49 uint64_t tcpi_cycles; 50 }; 51 52 #ifndef KERNEL 53 54 #include <stddef.h> 55 #include <AvailabilityInternalPrivate.h> 56 57 __BEGIN_DECLS 58 59 /* 60 * Get the current thread's counters according to a `kind` and store them into 61 * `dst`. 62 */ 63 __SPI_AVAILABLE(macos(12.4), ios(15.4), watchos(8.5), tvos(15.4)) 64 int thread_selfcounts(thread_selfcounts_kind_t kind, void *dst, size_t size); 65 66 /* 67 * Get the current thread's cycles and instructions. May return ENOTSUP on 68 * certain hardware. 69 */ 70 #define thread_selfcounts_cpi(DST) thread_selfcounts(THSC_CPI, (DST), sizeof(struct thsc_cpi)) 71 72 __END_DECLS 73 74 #endif /* !defined(KERNEL) */ 75 76 #endif /* !defined(_SYS_RESOURCE_PRIVATE_H_) */ 77