sysinfo.h 2.5 KB

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  1. /* Copyright (C) 1996, 1999, 2001 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  3. The GNU C Library is free software; you can redistribute it and/or
  4. modify it under the terms of the GNU Lesser General Public
  5. License as published by the Free Software Foundation; either
  6. version 2.1 of the License, or (at your option) any later version.
  7. The GNU C Library is distributed in the hope that it will be useful,
  8. but WITHOUT ANY WARRANTY; without even the implied warranty of
  9. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  10. Lesser General Public License for more details.
  11. You should have received a copy of the GNU Lesser General Public
  12. License along with the GNU C Library; if not, see
  13. <http://www.gnu.org/licenses/>. */
  14. #ifndef _SYS_SYSINFO_H
  15. #define _SYS_SYSINFO_H 1
  16. #include <features.h>
  17. #ifndef _LINUX_KERNEL_H
  18. /* Include our own copy of struct sysinfo to avoid binary compatability
  19. * problems with Linux 2.4, which changed things. Grumble, grumble. */
  20. #define _LINUX_SYSINFO_H
  21. #define SI_LOAD_SHIFT 16
  22. struct sysinfo {
  23. long uptime; /* Seconds since boot */
  24. unsigned long loads[3]; /* 1, 5, and 15 minute load averages */
  25. unsigned long totalram; /* Total usable main memory size */
  26. unsigned long freeram; /* Available memory size */
  27. unsigned long sharedram; /* Amount of shared memory */
  28. unsigned long bufferram; /* Memory used by buffers */
  29. unsigned long totalswap; /* Total swap space size */
  30. unsigned long freeswap; /* swap space still available */
  31. unsigned short procs; /* Number of current processes */
  32. unsigned short pad; /* Padding needed for m68k */
  33. unsigned long totalhigh; /* Total high memory size */
  34. unsigned long freehigh; /* Available high memory size */
  35. unsigned int mem_unit; /* Memory unit size in bytes */
  36. char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */
  37. };
  38. #endif
  39. __BEGIN_DECLS
  40. /* Returns information on overall system statistics. */
  41. extern int sysinfo (struct sysinfo *__info) __THROW;
  42. /* Return number of configured processors. */
  43. #define get_nprocs_conf() (sysconf(_SC_NPROCESSORS_CONF))
  44. /* Return number of available processors. */
  45. #define get_nprocs() (sysconf(_SC_NPROCESSORS_ONLN))
  46. #if 0
  47. /* Return number of physical pages of memory in the system. */
  48. extern long int get_phys_pages (void) __THROW;
  49. /* Return number of available physical pages of memory in the system. */
  50. extern long int get_avphys_pages (void) __THROW;
  51. #endif
  52. __END_DECLS
  53. #endif /* sys/sysinfo.h */