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c1b7f67b82
A user-defined callback is called when the refcount drops to 0. Reference counting is manually coded for several classes deriving from PipeItem, so this change will help to share this code, and allow to remove some ref/unref virtual functions in some interfaces when we can assume every instance derives from this base class. Signed-off-by: Christophe Fergeau <cfergeau@redhat.com> Signed-off-by: Frediano Ziglio <fziglio@redhat.com> Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
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/*
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Copyright (C) 2016 Red Hat, Inc.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _H_RED_PIPE_ITEM
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#define _H_RED_PIPE_ITEM
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#include <glib.h>
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typedef struct {
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RingItem link;
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int type;
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/* private */
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int refcount;
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GDestroyNotify free_func;
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} PipeItem;
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void pipe_item_init_full(PipeItem *item, int type, GDestroyNotify free_func);
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PipeItem *pipe_item_ref(gpointer item);
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void pipe_item_unref(gpointer item);
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static inline int pipe_item_is_linked(PipeItem *item)
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{
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return ring_item_is_linked(&item->link);
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}
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static inline void pipe_item_init(PipeItem *item, int type)
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{
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pipe_item_init_full(item, type, NULL);
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}
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#endif
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