SIP Router: hslot.c File Reference

USRLOC - Hash table collision slot related functions

Module: Usrloc :: User location module.

#include "hslot.h"

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Functions

void deinit_slot (hslot_t *_s)
Deinitialize given slot structure.
void init_slot (struct udomain *_d, hslot_t *_s, int n)
Initialize cache slot structure.
void slot_add (hslot_t *_s, struct urecord *_r)
Add an element to an slot's linked list.
void slot_rem (hslot_t *_s, struct urecord *_r)
Remove an element from slot linked list.
void ul_destroy_locks (void)
Destroy all locks on the list.
int ul_init_locks (void)
Initialize locks for the hash table.
void ul_lock_idx (int idx)
Lock a lock with a certain index.
void ul_release_idx (int idx)
Release a lock with a certain index.
void ul_unlock_locks (void)
Unlock all locks on the list.

Variables

gen_lock_set_t * ul_locks = 0
global list of locks
int ul_locks_no = 4
number of locks

Detailed Description

Definition in file modules_k/usrloc/hslot.c.

Function Documentation

void deinit_slot ( hslot_t * _s )

Parameters:

_s

hash slot

Definition at line 148 of file modules_k/usrloc/hslot.c.

References free_urecord(), and urecord::next.

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void init_slot	(	struct udomain *	_d,
		hslot_t *	_s,
		int	n
	)

Initialize slot structure.

Parameters:

	_d	domain for the hash slot
	_s	hash slot
	n	used to get the slot number (modulo number or locks)

Definition at line 129 of file modules_k/usrloc/hslot.c.

References ul_locks, and ul_locks_no.

void slot_add	(	hslot_t *	_s,
		struct urecord *	_r
	)

Add an element to slot linked list.

Parameters:

	_s	hash slot
	_r	added record

Definition at line 170 of file modules_k/usrloc/hslot.c.

References urecord::next, urecord::prev, and urecord::slot.

void slot_rem	(	hslot_t *	_s,
		struct urecord *	_r
	)

Parameters:

	_s	hash slot
	_r	removed record

Definition at line 189 of file modules_k/usrloc/hslot.c.

References urecord::next, urecord::prev, and urecord::slot.

int ul_init_locks ( void )

Returns:: 0 on success, -1 on failure

Definition at line 44 of file modules_k/usrloc/hslot.c.

References ul_locks, and ul_locks_no.

void ul_lock_idx ( int idx )

Parameters:

idx

lock index

Definition at line 107 of file modules_k/usrloc/hslot.c.

References ul_locks.

void ul_release_idx ( int idx )

Parameters:

idx

lock index

Definition at line 117 of file modules_k/usrloc/hslot.c.

References ul_locks.

void ul_unlock_locks ( void )

Destroy all locks on the list.

Definition at line 74 of file modules_k/usrloc/hslot.c.

References ul_locks, ul_locks_no, and ul_release_idx().

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