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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__ */