tango-tsg-service-chaining-engine/common/include/session_table.h

#ifndef _SESSION_TABLE_H
#define _SESSION_TABLE_H

#ifdef __cplusplus
extern "C"
{
#endif

#include <stdint.h>
#include <sys/types.h>

#include "tuple.h"

typedef void fn_free_cb(void *args);

struct session_table;
struct session_table *session_table_create();
void session_table_destory(struct session_table *table);
void session_table_reset(struct session_table *table);
uint64_t session_table_count(struct session_table *table);

// addr  : deep copy
// value : shallow copy (malloc by user, free by free_cb)
// Note  : addr must be initialized by memset(0) before use !!!
// return  0 : suceess
// return -1 : key exists
int session_table_insert(struct session_table *table, uint64_t id, const struct four_tuple *addr, void *value, const fn_free_cb *free_cb);

// return  0 : success
// return -1 : key not exists
int session_table_delete_by_id(struct session_table *table, uint64_t id);
int session_table_delete_by_addr(struct session_table *table, const struct four_tuple *addr);

// return  NULL : key not exists
// return value : success
void *session_table_search_by_id(struct session_table *table, uint64_t id);
void *session_table_search_by_addr(struct session_table *table, const struct four_tuple *addr);

#ifdef __cplusplus
}
#endif

#endif