115 lines
2.7 KiB
C
115 lines
2.7 KiB
C
/*
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* Copyright (C) 2015 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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
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* 02110-1301, USA.
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*
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* You can also choose to distribute this program under the terms of
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* the Unmodified Binary Distribution Licence (as given in the file
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* COPYING.UBDL), provided that you have satisfied its requirements.
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*/
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FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
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/**
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* @file
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*
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* Pooled connections
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*
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*/
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#include <assert.h>
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#include <ipxe/pool.h>
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/**
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* Recycle this connection after closing
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*
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* @v intf Data transfer interface
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*/
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void pool_recycle ( struct interface *intf ) {
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intf_poke ( intf, pool_recycle );
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}
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/**
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* Reopen a defunct connection
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*
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* @v intf Data transfer interface
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*/
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void pool_reopen ( struct interface *intf ) {
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intf_poke ( intf, pool_reopen );
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}
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/**
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* Add connection to pool
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*
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* @v pool Pooled connection
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* @v list List of pooled connections
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* @v expiry Expiry time
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*/
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void pool_add ( struct pooled_connection *pool, struct list_head *list,
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unsigned long expiry ) {
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/* Sanity check */
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assert ( list_empty ( &pool->list ) );
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assert ( ! timer_running ( &pool->timer ) );
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/* Add to list of pooled connections */
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list_add_tail ( &pool->list, list );
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/* Start expiry timer */
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start_timer_fixed ( &pool->timer, expiry );
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}
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/**
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* Remove connection from pool
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*
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* @v pool Pooled connection
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*/
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void pool_del ( struct pooled_connection *pool ) {
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/* Remove from list of pooled connections */
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list_del ( &pool->list );
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INIT_LIST_HEAD ( &pool->list );
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/* Stop expiry timer */
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stop_timer ( &pool->timer );
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/* Mark as a freshly recycled connection */
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pool->flags = POOL_RECYCLED;
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}
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/**
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* Close expired pooled connection
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*
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* @v timer Expiry timer
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* @v over Failure indicator
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*/
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void pool_expired ( struct retry_timer *timer, int over __unused ) {
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struct pooled_connection *pool =
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container_of ( timer, struct pooled_connection, timer );
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/* Sanity check */
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assert ( ! list_empty ( &pool->list ) );
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/* Remove from connection pool */
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list_del ( &pool->list );
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INIT_LIST_HEAD ( &pool->list );
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/* Close expired connection */
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pool->expired ( pool );
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}
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