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   1 /****************************************************************************/
   2 #if( defined _WIN32 && !defined KERNEL_MODE && NTDDI_VERSION >= NTDDI_WINXP )
   3
   4   #ifdef LIBBENCHMARK_PAL_OPERATING_SYSTEM
   5     #error More than one porting abstraction layer matches current platform. in "libbenchmark_porting_abstraction_layer_operating_system.h".
   6   #endif
   7
   8   #define LIBBENCHMARK_PAL_OPERATING_SYSTEM
   9
  10   #define LIBBENCHMARK_PAL_OS_STRING  "Windows"
  11
  12   #include <windows.h>
  13
  14   #define LIBBENCHMARK_PAL_TIME_UNITS_PER_SECOND( pointer_to_time_units_per_second )  QueryPerformanceFrequency( (LARGE_INTEGER *)(pointer_to_time_units_per_second) )
  15
  16   #define LIBBENCHMARK_PAL_GET_HIGHRES_TIME( pointer_to_time )                        QueryPerformanceCounter( (LARGE_INTEGER *)(pointer_to_time) );
  17
  18 #endif
  19
  20
  21
  22
  23
  24 /****************************************************************************/
  25 #if( defined _WIN32 && defined KERNEL_MODE && NTDDI_VERSION >= NTDDI_WINXP )
  26
  27   #ifdef LIBBENCHMARK_PAL_OPERATING_SYSTEM
  28     #error More than one porting abstraction layer matches current platform. in "libbenchmark_porting_abstraction_layer_operating_system.h".
  29   #endif
  30
  31   #define LIBBENCHMARK_PAL_OPERATING_SYSTEM
  32
  33   #define LIBBENCHMARK_PAL_OS_STRING  "Windows"
  34
  35   #include <wdm.h>
  36
  37   #define LIBBENCHMARK_PAL_TIME_UNITS_PER_SECOND( pointer_to_time_units_per_second )  KeQueryPerformanceCounter( (LARGE_INTEGER *)(pointer_to_time_units_per_second) )
  38
  39   #define LIBBENCHMARK_PAL_GET_HIGHRES_TIME( pointer_to_time )                        *( (LARGE_INTEGER *) pointer_to_time ) = KeQueryPerformanceCounter( NULL );
  40
  41 #endif
  42
  43
  44
  45
  46
  47 /****************************************************************************/
  48 #if( defined __linux__ && !defined KERNEL_MODE )
  49
  50   #ifdef LIBBENCHMARK_PAL_OPERATING_SYSTEM
  51     #error More than one porting abstraction layer matches current platform. in "libbenchmark_porting_abstraction_layer_operating_system.h".
  52   #endif
  53
  54   #define LIBBENCHMARK_PAL_OPERATING_SYSTEM
  55
  56   #define LIBBENCHMARK_PAL_OS_STRING  "Linux"
  57
  58   #define _GNU_SOURCE
  59
  60   #include <unistd.h>
  61   #include <stdarg.h>
  62   #include <stdio.h>
  63
  64   #if( defined _POSIX_THREADS && _POSIX_TIMERS >= 0 && _POSIX_MONOTONIC_CLOCK >= 0 )
  65     #define LIBBENCHMARK_PAL_TIME_UNITS_PER_SECOND( pointer_to_time_units_per_second )  *(pointer_to_time_units_per_second) = NUMBER_OF_NANOSECONDS_IN_ONE_SECOND
  66
  67     #define LIBBENCHMARK_PAL_GET_HIGHRES_TIME( pointer_to_time )                          \
  68     {                                                                                     \
  69       struct timespec tp;                                                                 \
  70       clock_gettime( CLOCK_MONOTONIC_RAW, &tp );                                          \
  71       *(pointer_to_time) = tp.tv_sec * NUMBER_OF_NANOSECONDS_IN_ONE_SECOND + tp.tv_nsec;  \
  72     }
  73   #else
  74     #error Linux without high resolution timers.
  75   #endif
  76
  77 #endif
  78
  79
  80
  81
  82
  83 /****************************************************************************/
  84 #if( defined __linux__ && defined KERNEL_MODE )
  85
  86   #ifdef LIBBENCHMARK_PAL_OPERATING_SYSTEM
  87     #error More than one porting abstraction layer matches current platform. in "libbenchmark_porting_abstraction_layer_operating_system.h".
  88   #endif
  89
  90   #define LIBBENCHMARK_PAL_OPERATING_SYSTEM
  91
  92   #define LIBBENCHMARK_PAL_OS_STRING  "Linux"
  93
  94   #define _GNU_SOURCE
  95
  96   #include <linux/module.h>
  97
  98   /* TRD : not clear to me how to obtain high res freq and current count, in Linux kernel
  99            it doesn't matter right now because it becamse clear earlier there's no wait-for-thread-to-complete
 100            function either, which breaks the lfds thread abstraction, and until I sort that out, benchmark
 101            can't run anyway
 102   */
 103
 104   #error No high resolution time abstraction for the Linux kernel.
 105
 106 #endif
 107
 108
 109
 110
 111
 112 /****************************************************************************/
 113 #if( !defined LIBBENCHMARK_PAL_OPERATING_SYSTEM )
 114
 115   #error No matching porting abstraction layer in "libbenchmark_porting_abstraction_layer_operating_system.h".
 116
 117 #endif
 118