27 struct Curl_tree {  struct
28   struct Curl_tree *smaller; /* smaller node */  argument
29   struct Curl_tree *larger;  /* larger node */  argument
30   struct Curl_tree *samen;   /* points to the next node with identical key */  argument
31   struct Curl_tree *samep;   /* points to the prev node with identical key */  argument
36 struct Curl_tree *Curl_splay(struct curltime i,  argument
37                              struct Curl_tree *t);
39 struct Curl_tree *Curl_splayinsert(struct curltime key,
40                                    struct Curl_tree *t,
41                                    struct Curl_tree *newnode);
44 struct Curl_tree *Curl_splayremove(struct curltime key,
45                                    struct Curl_tree *t,
46                                    struct Curl_tree **removed);
49 struct Curl_tree *Curl_splaygetbest(struct curltime key,
50                                     struct Curl_tree *t,
51                                     struct Curl_tree **removed);
53 int Curl_splayremovebyaddr(struct Curl_tree *t,
54                            struct Curl_tree *removenode,
55                            struct Curl_tree **newroot);
63 void Curl_splayprint(struct Curl_tree * t, int d, char output);