Michael Brown
8406115834
Access to the gpxe.org and etherboot.org domains and associated resources has been revoked by the registrant of the domain. Work around this problem by renaming project from gPXE to iPXE, and updating URLs to match. Also update README, LOG and COPYRIGHTS to remove obsolete information. Signed-off-by: Michael Brown <mcb30@ipxe.org>
79 lines
1.8 KiB
C
79 lines
1.8 KiB
C
/*
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* Copyright (C) 2007 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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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FILE_LICENCE ( GPL2_OR_LATER );
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#include <stdlib.h>
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#include <ipxe/refcnt.h>
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/** @file
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*
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* Reference counting
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*
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*/
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/**
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* Increment reference count
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*
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* @v refcnt Reference counter, or NULL
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* @ret refcnt Reference counter
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*
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* If @c refcnt is NULL, no action is taken.
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*/
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struct refcnt * ref_get ( struct refcnt *refcnt ) {
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if ( refcnt ) {
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refcnt->refcnt++;
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DBGC2 ( refcnt, "REFCNT %p incremented to %d\n",
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refcnt, refcnt->refcnt );
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}
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return refcnt;
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}
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/**
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* Decrement reference count
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*
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* @v refcnt Reference counter, or NULL
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*
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* If the reference count decreases below zero, the object's free()
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* method will be called.
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*
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* If @c refcnt is NULL, no action is taken.
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*/
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void ref_put ( struct refcnt *refcnt ) {
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if ( ! refcnt )
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return;
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refcnt->refcnt--;
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DBGC2 ( refcnt, "REFCNT %p decremented to %d\n",
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refcnt, refcnt->refcnt );
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if ( refcnt->refcnt >= 0 )
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return;
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if ( refcnt->free ) {
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DBGC ( refcnt, "REFCNT %p being freed via method %p\n",
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refcnt, refcnt->free );
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refcnt->free ( refcnt );
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} else {
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DBGC ( refcnt, "REFCNT %p being freed\n", refcnt );
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free ( refcnt );
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}
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}
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