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124 lines
3.4 KiB
124 lines
3.4 KiB
/**
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*
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* Copyright (C) 2008 Elena-Ramona Modroiu (asipto.com)
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*
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* This file is part of kamailio, a free SIP server.
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*
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* Kamailio is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version
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*
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* Kamailio is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _HT_API_H_
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#define _HT_API_H_
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#include <time.h>
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#include "../../usr_avp.h"
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#include "../../locking.h"
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#include "../../pvar.h"
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#include "../../atomic_ops.h"
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#define ht_compute_hash(_s) core_case_hash(_s,0,0)
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#define ht_get_entry(_h,_size) (_h)&((_size)-1)
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typedef struct _ht_cell
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{
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unsigned int cellid;
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unsigned int msize;
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int flags;
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str name;
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int_str value;
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time_t expire;
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struct _ht_cell *prev;
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struct _ht_cell *next;
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} ht_cell_t;
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typedef struct _ht_entry
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{
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unsigned int esize; /* number of items in the slot */
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ht_cell_t *first; /* first item in the slot */
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gen_lock_t lock; /* mutex to access items in the slot */
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atomic_t locker_pid; /* pid of the process that holds the lock */
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int rec_lock_level; /* recursive lock count */
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} ht_entry_t;
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#define HT_MAX_COLS 8
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typedef struct _ht
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{
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str name;
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unsigned int htid;
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unsigned int htexpire;
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str dbtable;
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int dbmode;
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int ncols;
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str scols[HT_MAX_COLS];
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char pack[4];
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int flags;
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int_str initval;
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int updateexpire;
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unsigned int htsize;
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int dmqreplicate;
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int evrt_expired;
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ht_entry_t *entries;
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struct _ht *next;
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} ht_t;
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typedef struct _ht_pv {
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str htname;
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ht_t *ht;
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pv_elem_t *pve;
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} ht_pv_t, *ht_pv_p;
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int ht_add_table(str *name, int autoexp, str *dbtable, str *dbcols, int size,
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int dbmode, int itype, int_str *ival, int updateexpire,
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int dmqreplicate);
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int ht_init_tables(void);
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int ht_destroy(void);
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int ht_set_cell(ht_t *ht, str *name, int type, int_str *val, int mode);
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int ht_del_cell(ht_t *ht, str *name);
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ht_cell_t* ht_cell_value_add(ht_t *ht, str *name, int val, int mode,
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ht_cell_t *old);
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int ht_dbg(void);
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ht_cell_t* ht_cell_pkg_copy(ht_t *ht, str *name, ht_cell_t *old);
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int ht_cell_pkg_free(ht_cell_t *cell);
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int ht_cell_free(ht_cell_t *cell);
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int ht_table_spec(char *spec);
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ht_t* ht_get_table(str *name);
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int ht_db_load_tables(void);
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int ht_db_sync_tables(void);
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int ht_has_autoexpire(void);
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void ht_timer(unsigned int ticks, void *param);
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void ht_handle_expired_record(ht_t *ht, ht_cell_t *cell);
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void ht_expired_run_event_route(int routeid);
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int ht_set_cell_expire(ht_t *ht, str *name, int type, int_str *val);
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int ht_get_cell_expire(ht_t *ht, str *name, unsigned int *val);
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int ht_rm_cell_re(str *sre, ht_t *ht, int mode);
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int ht_count_cells_re(str *sre, ht_t *ht, int mode);
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ht_t *ht_get_root(void);
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int ht_reset_content(ht_t *ht);
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void ht_iterator_init(void);
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int ht_iterator_start(str *iname, str *hname);
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int ht_iterator_next(str *iname);
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int ht_iterator_end(str *iname);
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ht_cell_t* ht_iterator_get_current(str *iname);
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void ht_slot_lock(ht_t *ht, int idx);
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void ht_slot_unlock(ht_t *ht, int idx);
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#endif
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