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
  10 struct bitmask {
  11         unsigned int size;
  12         unsigned long *maskp;
  13 };
  14
  15 struct bitmask *bitmask_alloc(unsigned int n);
  16 void bitmask_free(struct bitmask *bmp);
  17
  18 struct bitmask *bitmask_setbit(struct bitmask *bmp, unsigned int i);
  19 struct bitmask *bitmask_setall(struct bitmask *bmp);
  20 struct bitmask *bitmask_clearall(struct bitmask *bmp);
  21
  22 unsigned int bitmask_first(const struct bitmask *bmp);
  23 unsigned int bitmask_next(const struct bitmask *bmp, unsigned int i);
  24 unsigned int bitmask_last(const struct bitmask *bmp);
  25 int bitmask_isallclear(const struct bitmask *bmp);
  26 int bitmask_isbitset(const struct bitmask *bmp, unsigned int i);
  27
  28 int bitmask_parselist(const char *buf, struct bitmask *bmp);
  29 int bitmask_displaylist(char *buf, int len, const struct bitmask *bmp);
  30
  31
  32
  33 #endif /*__CPUPOWER_BITMASK__ */