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73 lines
2.8 KiB
C
73 lines
2.8 KiB
C
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/*
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* Copyright © 2008 Ryan Lortie
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* Copyright © 2010 Codethink Limited
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*
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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 of the licence, or (at your option) any later version.
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*
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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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*
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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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Author: Ryan Lortie <desrt@desrt.ca>
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*/
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#ifndef __G_BITLOCK_H__
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#define __G_BITLOCK_H__
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#include <glib/gtypes.h>
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#if defined(G_DISABLE_SINGLE_INCLUDES) && !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
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#error "Only <glib.h> can be included directly."
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#endif
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G_BEGIN_DECLS
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void g_bit_lock (volatile gint *address,
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gint lock_bit);
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gboolean g_bit_trylock (volatile gint *address,
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gint lock_bit);
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void g_bit_unlock (volatile gint *address,
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gint lock_bit);
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void g_pointer_bit_lock (volatile void *address,
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gint lock_bit);
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gboolean g_pointer_bit_trylock (volatile void *address,
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gint lock_bit);
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void g_pointer_bit_unlock (volatile void *address,
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gint lock_bit);
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#ifdef __GNUC__
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#define g_pointer_bit_lock(address, lock_bit) \
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(G_GNUC_EXTENSION ({ \
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G_STATIC_ASSERT (sizeof *(address) == sizeof (gpointer)); \
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g_pointer_bit_lock ((address), (lock_bit)); \
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}))
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#define g_pointer_bit_trylock(address, lock_bit) \
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(G_GNUC_EXTENSION ({ \
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G_STATIC_ASSERT (sizeof *(address) == sizeof (gpointer)); \
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g_pointer_bit_trylock ((address), (lock_bit)); \
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}))
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#define g_pointer_bit_unlock(address, lock_bit) \
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(G_GNUC_EXTENSION ({ \
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G_STATIC_ASSERT (sizeof *(address) == sizeof (gpointer)); \
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g_pointer_bit_unlock ((address), (lock_bit)); \
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}))
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#endif
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G_END_DECLS
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#endif /* __G_BITLOCK_H_ */
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