59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
#ifndef _SESSION_TABLE_H
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#define _SESSION_TABLE_H
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#ifdef __cpluscplus
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extern "C"
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{
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#endif
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#include <stdint.h>
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#include <sys/types.h>
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#include "uthash.h"
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#include "addr_tuple4.h"
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// Note: session_addr must be initialized by memset(0) before use !!!
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typedef void fn_free_cb(void *args);
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struct session_node
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{
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uint64_t session_id; /* first key */
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struct addr_tuple4 session_addr; /* second key */
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void *val_data;
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fn_free_cb *val_freecb;
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UT_hash_handle hh1; /* handle for first hash table */
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UT_hash_handle hh2; /* handle for second hash table */
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};
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struct session_table;
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struct session_table *session_table_create();
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void session_table_destory(struct session_table *table);
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void session_table_reset(struct session_table *table);
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uint64_t session_table_count(struct session_table *table);
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// session_addr : deep copy
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// val_data : shallow copy (malloc by user, free by val_freecb)
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// return 0 : suceess
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// return -1 : key exists
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int session_table_insert(struct session_table *table, uint64_t session_id, const struct addr_tuple4 *session_addr, void *val_data, const fn_free_cb *val_freecb);
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// return 0 : success
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// return -1 : key not exists
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int session_table_delete_by_id(struct session_table *table, uint64_t session_id);
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int session_table_delete_by_addr(struct session_table *table, const struct addr_tuple4 *session_addr);
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// return NULL : key not exists
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// return UnNULL : success
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struct session_node *session_table_search_by_id(struct session_table *table, uint64_t session_id);
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struct session_node *session_table_search_by_addr(struct session_table *table, const struct addr_tuple4 *session_addr);
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#ifdef __cpluscplus
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}
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#endif
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#endif
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