LXR linux/tools/power/cpupower/utils/helpers/bitmask.h

   1#ifndef __CPUPOWER_BITMASK__
   2#define __CPUPOWER_BITMASK__
   3
   4/* Taken over from libbitmask, a project initiated from sgi:
   5 * Url:            http://oss.sgi.com/projects/cpusets/
   6 * Unfortunately it's not very widespread, therefore relevant parts are
   7 * pasted here.
   8 */
   9
  10struct bitmask {
  11        unsigned int size;
  12        unsigned long *maskp;
  13};
  14
  15struct bitmask *bitmask_alloc(unsigned int n);
  16void bitmask_free(struct bitmask *bmp);
  17
  18struct bitmask *bitmask_setbit(struct bitmask *bmp, unsigned int i);
  19struct bitmask *bitmask_setall(struct bitmask *bmp);
  20struct bitmask *bitmask_clearall(struct bitmask *bmp);
  21
  22unsigned int bitmask_first(const struct bitmask *bmp);
  23unsigned int bitmask_next(const struct bitmask *bmp, unsigned int i);
  24unsigned int bitmask_last(const struct bitmask *bmp);
  25int bitmask_isallclear(const struct bitmask *bmp);
  26int bitmask_isbitset(const struct bitmask *bmp, unsigned int i);
  27
  28int bitmask_parselist(const char *buf, struct bitmask *bmp);
  29int bitmask_displaylist(char *buf, int len, const struct bitmask *bmp);
  30
  31
  32
  33#endif /*__CPUPOWER_BITMASK__ */
  34