Intel(R) Threading Building Blocks Doxygen Documentation  version 4.2.3
macos_common.h
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1 /*
2  Copyright (c) 2005-2019 Intel Corporation
3 
4  Licensed under the Apache License, Version 2.0 (the "License");
5  you may not use this file except in compliance with the License.
6  You may obtain a copy of the License at
7 
8  http://www.apache.org/licenses/LICENSE-2.0
9 
10  Unless required by applicable law or agreed to in writing, software
11  distributed under the License is distributed on an "AS IS" BASIS,
12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  See the License for the specific language governing permissions and
14  limitations under the License.
15 
16 
17 
18 
19 */
20 
21 #if !defined(__TBB_machine_H) || defined(__TBB_machine_macos_common_H)
22 #error Do not #include this internal file directly; use public TBB headers instead.
23 #endif
24 
25 #define __TBB_machine_macos_common_H
26 
27 #include <sched.h>
28 #define __TBB_Yield() sched_yield()
29 
30 // __TBB_HardwareConcurrency
31 
32 #include <sys/types.h>
33 #include <sys/sysctl.h>
34 
35 static inline int __TBB_macos_available_cpu() {
36  int name[2] = {CTL_HW, HW_AVAILCPU};
37  int ncpu;
38  size_t size = sizeof(ncpu);
39  sysctl( name, 2, &ncpu, &size, NULL, 0 );
40  return ncpu;
41 }
42 
43 #define __TBB_HardwareConcurrency() __TBB_macos_available_cpu()
44 
45 #ifndef __TBB_full_memory_fence
46  // TBB has not recognized the architecture (none of the architecture abstraction
47  // headers was included).
48  #define __TBB_UnknownArchitecture 1
49 #endif
50 
51 #if __TBB_UnknownArchitecture
52 // Implementation of atomic operations based on OS provided primitives
53 #include <libkern/OSAtomic.h>
54 
55 static inline int64_t __TBB_machine_cmpswp8_OsX(volatile void *ptr, int64_t value, int64_t comparand)
56 {
57  __TBB_ASSERT( tbb::internal::is_aligned(ptr,8), "address not properly aligned for macOS* atomics");
58  int64_t* address = (int64_t*)ptr;
59  while( !OSAtomicCompareAndSwap64Barrier(comparand, value, address) ){
60 #if __TBB_WORDSIZE==8
61  int64_t snapshot = *address;
62 #else
63  int64_t snapshot = OSAtomicAdd64( 0, address );
64 #endif
65  if( snapshot!=comparand ) return snapshot;
66  }
67  return comparand;
68 }
69 
70 #define __TBB_machine_cmpswp8 __TBB_machine_cmpswp8_OsX
71 
72 #endif /* __TBB_UnknownArchitecture */
73 
74 #if __TBB_UnknownArchitecture
75 
76 #ifndef __TBB_WORDSIZE
77 #define __TBB_WORDSIZE __SIZEOF_POINTER__
78 #endif
79 
80 #ifdef __TBB_ENDIANNESS
81  // Already determined based on hardware architecture.
82 #elif __BIG_ENDIAN__
83  #define __TBB_ENDIANNESS __TBB_ENDIAN_BIG
84 #elif __LITTLE_ENDIAN__
85  #define __TBB_ENDIANNESS __TBB_ENDIAN_LITTLE
86 #else
87  #define __TBB_ENDIANNESS __TBB_ENDIAN_UNSUPPORTED
88 #endif
89 
95 #define __TBB_control_consistency_helper() OSMemoryBarrier()
96 #define __TBB_acquire_consistency_helper() OSMemoryBarrier()
97 #define __TBB_release_consistency_helper() OSMemoryBarrier()
98 #define __TBB_full_memory_fence() OSMemoryBarrier()
99 
100 static inline int32_t __TBB_machine_cmpswp4(volatile void *ptr, int32_t value, int32_t comparand)
101 {
102  __TBB_ASSERT( tbb::internal::is_aligned(ptr,4), "address not properly aligned for macOS atomics");
103  int32_t* address = (int32_t*)ptr;
104  while( !OSAtomicCompareAndSwap32Barrier(comparand, value, address) ){
105  int32_t snapshot = *address;
106  if( snapshot!=comparand ) return snapshot;
107  }
108  return comparand;
109 }
110 
111 static inline int32_t __TBB_machine_fetchadd4(volatile void *ptr, int32_t addend)
112 {
113  __TBB_ASSERT( tbb::internal::is_aligned(ptr,4), "address not properly aligned for macOS atomics");
114  return OSAtomicAdd32Barrier(addend, (int32_t*)ptr) - addend;
115 }
116 
117 static inline int64_t __TBB_machine_fetchadd8(volatile void *ptr, int64_t addend)
118 {
119  __TBB_ASSERT( tbb::internal::is_aligned(ptr,8), "address not properly aligned for macOS atomics");
120  return OSAtomicAdd64Barrier(addend, (int64_t*)ptr) - addend;
121 }
122 
123 #define __TBB_USE_GENERIC_PART_WORD_CAS 1
124 #define __TBB_USE_GENERIC_PART_WORD_FETCH_ADD 1
125 #define __TBB_USE_GENERIC_FETCH_STORE 1
126 #define __TBB_USE_GENERIC_HALF_FENCED_LOAD_STORE 1
127 #define __TBB_USE_GENERIC_RELAXED_LOAD_STORE 1
128 #if __TBB_WORDSIZE == 4
129  #define __TBB_USE_GENERIC_DWORD_LOAD_STORE 1
130 #endif
131 #define __TBB_USE_GENERIC_SEQUENTIAL_CONSISTENCY_LOAD_STORE 1
132 
133 #endif /* __TBB_UnknownArchitecture */
#define __TBB_ASSERT(predicate, comment)
No-op version of __TBB_ASSERT.
Definition: tbb_stddef.h:169
static int32_t __TBB_machine_fetchadd4(volatile void *ptr, int32_t addend)
Definition: macos_common.h:111
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void * address
static int32_t __TBB_machine_cmpswp4(volatile void *ptr, int32_t value, int32_t comparand)
Definition: macos_common.h:100
static int __TBB_macos_available_cpu()
Definition: macos_common.h:35
bool is_aligned(T *pointer, uintptr_t alignment)
A function to check if passed in pointer is aligned on a specific border.
Definition: tbb_stddef.h:353
static int64_t __TBB_machine_cmpswp8_OsX(volatile void *ptr, int64_t value, int64_t comparand)
Definition: macos_common.h:55
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t ITT_FORMAT d void ITT_FORMAT p void ITT_FORMAT p __itt_model_site __itt_model_site_instance ITT_FORMAT p __itt_model_task __itt_model_task_instance ITT_FORMAT p void ITT_FORMAT p void ITT_FORMAT p void size_t ITT_FORMAT d void ITT_FORMAT p const wchar_t ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s const char ITT_FORMAT s no args void ITT_FORMAT p size_t ITT_FORMAT d no args const wchar_t const wchar_t ITT_FORMAT s __itt_heap_function void size_t int ITT_FORMAT d __itt_heap_function void ITT_FORMAT p __itt_heap_function void void size_t int ITT_FORMAT d no args no args unsigned int ITT_FORMAT u const __itt_domain __itt_id ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain __itt_id ITT_FORMAT p const __itt_domain __itt_id __itt_timestamp __itt_timestamp ITT_FORMAT lu const __itt_domain __itt_id __itt_id __itt_string_handle ITT_FORMAT p const __itt_domain ITT_FORMAT p const __itt_domain __itt_string_handle unsigned long long value
void const char const char int ITT_FORMAT __itt_group_sync x void const char ITT_FORMAT __itt_group_sync s void ITT_FORMAT __itt_group_sync p void ITT_FORMAT p void ITT_FORMAT p no args __itt_suppress_mode_t unsigned int void size_t size
void const char const char int ITT_FORMAT __itt_group_sync x void const char * name
static int64_t __TBB_machine_fetchadd8(volatile void *ptr, int64_t addend)
Definition: macos_common.h:117

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