tools/perf/util/xyarray.h

   1 #ifndef _PERF_XYARRAY_H_
   2 #define _PERF_XYARRAY_H_ 1
   3
   4 #include <sys/types.h>
   5
   6 struct xyarray {
   7         size_t row_size;
   8         size_t entry_size;
   9         size_t entries;
  10         char contents[];
  11 };
  12
  13 struct xyarray *xyarray__new(int xlen, int ylen, size_t entry_size);
  14 void xyarray__delete(struct xyarray *xy);
  15 void xyarray__reset(struct xyarray *xy);
  16
  17 static inline void *xyarray__entry(struct xyarray *xy, int x, int y)
  18 {
  19         return &xy->contents[x * xy->row_size + y * xy->entry_size];
  20 }
  21
  22 #endif /* _PERF_XYARRAY_H_ */