1 krisbash 1.1 /*
2 **==============================================================================
3 **
4 ** Open Management Infrastructure (OMI)
5 **
6 ** Copyright (c) Microsoft Corporation
7 **
8 ** Licensed under the Apache License, Version 2.0 (the "License"); you may not
9 ** use this file except in compliance with the License. You may obtain a copy
10 ** of the License at
11 **
12 ** http://www.apache.org/licenses/LICENSE-2.0
13 **
14 ** THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 ** KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
16 ** WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
17 ** MERCHANTABLITY OR NON-INFRINGEMENT.
18 **
19 ** See the Apache 2 License for the specific language governing permissions
20 ** and limitations under the License.
21 **
22 krisbash 1.1 **==============================================================================
23 */
24
25 #ifndef _pal_cpu_h
26 #define _pal_cpu_h
27
28 #include "palcommon.h"
29
30 #if defined(PAL_HAVE_POSIX)
31 # include <unistd.h>
32 # include <time.h>
33 # include <sys/time.h>
34 # include <sys/types.h>
35 #endif
36
37 PAL_BEGIN_EXTERNC
38
39 PAL_INLINE int CPU_GetCount()
40 {
41 #if defined(_MSC_VER)
42 SYSTEM_INFO info;
43 krisbash 1.1 GetSystemInfo(&info);
44 return info.dwNumberOfProcessors;
45 #elif !defined(_SC_NPROCESSORS_ONLN)
46 return 1; /* ATTN: Not implemented */
47 #else
48 return sysconf(_SC_NPROCESSORS_ONLN);
49 #endif
50 }
51
52 PAL_INLINE int CPU_GetCurrent()
53 {
54 #if defined(_MSC_VER)
55 return GetCurrentProcessorNumber();
56 #elif defined(CONFIG_HAVE_SCHED_GETCPU)
57 int sched_getcpu();
58 return sched_getcpu();
59 #else
60 /* ATTN: sched_getcpu is not implemented! */
61 return 0;
62 #endif
63 }
64 krisbash 1.1
65 PAL_INLINE ptrdiff_t CPU_GetTimeStamp()
66 {
67 #if defined(_MSC_VER) && defined(_ARM_)
68 return (ptrdiff_t)(GetTickCount64() * 1000);
69 #elif defined(_MSC_VER)
70 return (ptrdiff_t)(ReadTimeStampCounter() >> 11);
71 #else
72 struct timeval tv;
73 gettimeofday(&tv, NULL);
74 return (ptrdiff_t)(tv.tv_sec * 1000000 + tv.tv_usec);
75 #endif
76 }
77
78 _Success_(return == 0)
79 int CPU_GetLocalTimestamp(
80 _Out_ PAL_Datetime* current);
81
82 _Success_(return == 0)
83 int CPU_GetUtcTimestamp(
84 _Out_ PAL_Datetime* current);
85 krisbash 1.1
86 PAL_END_EXTERNC
87
88 #endif /* _pal_cpu_h */
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