ref: 8e631b19c4bf009a69489fcdd2e0b8c84a104a15
dir: /hash.h/
typedef union Hkey Hkey; union Hkey { void *p; int v; }; typedef struct Hmap Hmap; struct Hmap { uvlong (*hash)(void*); int (*cmp)(void*,void*); int nbs; int nsz; int len; int cap; uchar *nodes; };