posix/tst-sysconf.c

   1 #include <stdbool.h>
   2 #include <stdio.h>
   3 #include <unistd.h>
   4
   5 static struct
   6 {
   7   long int _P_val;
   8   const char *name;
   9   int _SC_val;
  10   bool positive;
  11   bool posix2;
  12 } posix_options[] =
  13   {
  14 #define N_(name, pos) { _POSIX_##name, #name, _SC_##name, pos, false }
  15 #define NP(name) N_ (name, true)
  16 #define N(name) N_ (name, false)
  17 #define N2(name) { _POSIX2_##name, #name, _SC_2_##name, false, true }
  18     N (ADVISORY_INFO),
  19     N (ASYNCHRONOUS_IO),
  20     N (BARRIERS),
  21     N (CLOCK_SELECTION),
  22     N (CPUTIME),
  23     N (FSYNC),
  24     N (IPV6),
  25     NP (JOB_CONTROL),
  26     N (MAPPED_FILES),
  27     N (MEMLOCK),
  28     N (MEMLOCK_RANGE),
  29     N (MEMORY_PROTECTION),
  30     N (MESSAGE_PASSING),
  31     N (MONOTONIC_CLOCK),
  32 #ifdef _POSIX_PRIORITIZED_IO
  33     N (PRIORITIZED_IO),
  34 #endif
  35 #ifdef _POSIX_PRIORITY_SCHEDULING
  36     N (PRIORITY_SCHEDULING),
  37 #endif
  38     N (RAW_SOCKETS),
  39     N (READER_WRITER_LOCKS),
  40     N (REALTIME_SIGNALS),
  41     NP (REGEXP),
  42     NP (SAVED_IDS),
  43     N (SEMAPHORES),
  44     N (SHARED_MEMORY_OBJECTS),
  45     NP (SHELL),
  46     N (SPAWN),
  47     N (SPIN_LOCKS),
  48     N (SPORADIC_SERVER),
  49 #ifdef _POSIX_SYNCHRONIZED_IO
  50     N (SYNCHRONIZED_IO),
  51 #endif
  52     N (THREAD_ATTR_STACKADDR),
  53     N (THREAD_ATTR_STACKSIZE),
  54     N (THREAD_CPUTIME),
  55     N (THREAD_PRIO_INHERIT),
  56     N (THREAD_PRIO_PROTECT),
  57     N (THREAD_PRIORITY_SCHEDULING),
  58     N (THREAD_PROCESS_SHARED),
  59     N (THREAD_SAFE_FUNCTIONS),
  60     N (THREAD_SPORADIC_SERVER),
  61     N (THREADS),
  62     N (TIMEOUTS),
  63     N (TIMERS),
  64     N (TRACE),
  65     N (TRACE_EVENT_FILTER),
  66     N (TRACE_INHERIT),
  67     N (TRACE_LOG),
  68     N (TYPED_MEMORY_OBJECTS),
  69     N2 (C_BIND),
  70     N2 (C_DEV),
  71     N2 (CHAR_TERM)
  72   };
  73 #define nposix_options (sizeof (posix_options) / sizeof (posix_options[0]))
  74
  75 static int
  76 do_test (void)
  77 {
  78   int result = 0;
  79
  80   for (int i = 0; i < nposix_options; ++i)
  81     {
  82       long int scret = sysconf (posix_options[i]._SC_val);
  83
  84       if (scret == 0)
  85         {
  86           printf ("sysconf(_SC_%s%s) returned zero\n",
  87                   posix_options[i].posix2 ? "2_" : "", posix_options[i].name);
  88           result = 1;
  89         }
  90       if (posix_options[i]._P_val != 0 && posix_options[i]._P_val != scret)
  91         {
  92           printf ("sysconf(_SC_%s%s) = %ld does not match _POSIX%s_%s = %ld\n",
  93                   posix_options[i].posix2 ? "2_" : "", posix_options[i].name,
  94                   scret,
  95                   posix_options[i].posix2 ? "2" : "", posix_options[i].name,
  96                   posix_options[i]._P_val);
  97           result = 1;
  98         }
  99       else if (posix_options[i].positive && scret < 0)
 100         {
 101           printf ("sysconf(_SC_%s%s) must be > 0\n",
 102                   posix_options[i].posix2 ? "2_" : "", posix_options[i].name);
 103           result = 1;
 104         }
 105
 106 #define STDVER 200809L
 107       if (scret > 0 && scret != STDVER && !posix_options[i].positive)
 108         {
 109           printf ("sysconf(_SC_%s%s) must be %ldL\n",
 110                   posix_options[i].posix2 ? "2_" : "", posix_options[i].name,
 111                   STDVER);
 112           result = 1;
 113         }
 114     }
 115
 116   return result;
 117 }
 118
 119 #define TEST_FUNCTION do_test ()
 120 #include "../test-skeleton.c"