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Linux/tools/power/cpupower/utils/helpers/bitmask.h

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  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__ */
 34 

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