CDN_DNS/radix/radix.h

45 lines
1.1 KiB
C

#ifndef RADIX_HEADER_736213980973149671328765
#define RADIX_HEADER_736213980973149671328765
#include "stdio.h"
#include "stdlib.h"
#include "string.h"
#define VALID_RULE 1
#define INVALID_RULE 0
#define RULE_NOT_FOUND -1
struct routing_record {
unsigned long long _ip;
unsigned short _rule;
unsigned _ip_end_bit:7;
unsigned _rule_valid:1;
};
struct radix_node {
struct radix_node* _l;
struct radix_node* _r;
struct routing_record _data;
};
struct radix_holder {
struct radix_node* _root;
size_t _size;
};
typedef struct radix_node* radix_node_t;
typedef struct radix_holder* radix_holder_t;
typedef struct routing_record* record_t;
struct radix_holder* create_holder();
struct radix_node* create_node(record_t record);
static struct radix_node* clone_node(radix_node_t n);
static void split_node(struct radix_node* n, unsigned bit);
int destory_holder(struct radix_holder*);
int destory_node(struct radix_node*);
int radix_insert(radix_holder_t, record_t);
int radix_search(radix_holder_t, record_t);
#endif