C++ (Cpp) GET_NPROCS_CONF_PARSER Beispiele

Beispiel #1

Datei: getsysstats.c Projekt: mikuhatsune001/my_public_repository

/* On some architectures it is possible to distinguish between configured
   and active cpus.  */
int
__get_nprocs_conf ()
{
  /* XXX Here will come a test for the new system call.  */

  /* Try to use the sysfs filesystem.  It has actual information about
     online processors.  */
  DIR *dir = __opendir ("/sys/devices/system/cpu");
  if (dir != NULL)
    {
      int count = 0;
      struct dirent64 *d;

      while ((d = __readdir64 (dir)) != NULL)
	/* NB: the sysfs has d_type support.  */
	if (d->d_type == DT_DIR && strncmp (d->d_name, "cpu", 3) == 0)
	  {
	    char *endp;
	    unsigned long int nr = strtoul (d->d_name + 3, &endp, 10);
	    if (nr != ULONG_MAX && endp != d->d_name + 3 && *endp == '\0')
	      ++count;
	  }

      __closedir (dir);

      return count;
    }

  int result = 1;

#ifdef GET_NPROCS_CONF_PARSER
  /* If we haven't found an appropriate entry return 1.  */
  FILE *fp = fopen ("/proc/cpuinfo", "rce");
  if (fp != NULL)
    {
      char buffer[8192];

      /* No threads use this stream.  */
      __fsetlocking (fp, FSETLOCKING_BYCALLER);
      GET_NPROCS_CONF_PARSER (fp, buffer, result);
      fclose (fp);
    }
#else
  result = __get_nprocs ();
#endif

  return result;
}

Beispiel #2

Datei: getsysstats.c Projekt: KrisChaplin/octeon_toolchain-4.1

/* On some architectures it is possible to distinguish between configured
   and active cpus.  */
int
__get_nprocs_conf ()
{
  char buffer[8192];
  int result = 1;

  /* XXX Here will come a test for the new system call.  */

  /* If we haven't found an appropriate entry return 1.  */
  FILE *fp = fopen ("/proc/cpuinfo", "rc");
  if (fp != NULL)
    {
      /* No threads use this stream.  */
      __fsetlocking (fp, FSETLOCKING_BYCALLER);
      GET_NPROCS_CONF_PARSER (fp, buffer, result);
      fclose (fp);
    }

  return result;
}