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author | hk57.kim <hk57.kim@samsung.com> | 2015-06-03 15:16:56 +0900 |
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committer | hk57.kim <hk57.kim@samsung.com> | 2015-06-03 15:16:56 +0900 |
commit | 4078c98a5d481778482f52d3aaf7a1777ffe6088 (patch) | |
tree | c18ae9d21e2b29c349231c5b61d742e9fca9c1d9 /src/cairo-reference-count-private.h | |
parent | cce6a0e298fac08c588204b085e7a807fa75813d (diff) | |
download | cairo-4078c98a5d481778482f52d3aaf7a1777ffe6088.tar.gz cairo-4078c98a5d481778482f52d3aaf7a1777ffe6088.tar.bz2 cairo-4078c98a5d481778482f52d3aaf7a1777ffe6088.zip |
Cairo 1.12.14
Change-Id: Ibc39e63896ec42cab29fbbbf615a46f2d58319a8
Signed-off-by: hk57.kim <hk57.kim@samsung.com>
Diffstat (limited to 'src/cairo-reference-count-private.h')
-rwxr-xr-x | src/cairo-reference-count-private.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/cairo-reference-count-private.h b/src/cairo-reference-count-private.h new file mode 100755 index 000000000..75fdf3538 --- /dev/null +++ b/src/cairo-reference-count-private.h @@ -0,0 +1,62 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2007 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is University of Southern + * California. + * + * Contributor(s): + * Chris Wilson <chris@chris-wilson.co.uk> + */ + +#ifndef CAIRO_REFRENCE_COUNT_PRIVATE_H +#define CAIRO_REFRENCE_COUNT_PRIVATE_H + +#include "cairo-atomic-private.h" + +/* Encapsulate operations on the object's reference count */ +typedef struct { + cairo_atomic_int_t ref_count; +} cairo_reference_count_t; + +#define _cairo_reference_count_inc(RC) _cairo_atomic_int_inc (&(RC)->ref_count) +#define _cairo_reference_count_dec(RC) _cairo_atomic_int_dec (&(RC)->ref_count) +#define _cairo_reference_count_dec_and_test(RC) _cairo_atomic_int_dec_and_test (&(RC)->ref_count) + +#define CAIRO_REFERENCE_COUNT_INIT(RC, VALUE) ((RC)->ref_count = (VALUE)) + +#define CAIRO_REFERENCE_COUNT_GET_VALUE(RC) _cairo_atomic_int_get (&(RC)->ref_count) + +#define CAIRO_REFERENCE_COUNT_INVALID_VALUE ((cairo_atomic_int_t) -1) +#define CAIRO_REFERENCE_COUNT_INVALID {CAIRO_REFERENCE_COUNT_INVALID_VALUE} + +#define CAIRO_REFERENCE_COUNT_IS_INVALID(RC) (CAIRO_REFERENCE_COUNT_GET_VALUE (RC) == CAIRO_REFERENCE_COUNT_INVALID_VALUE) + +#define CAIRO_REFERENCE_COUNT_HAS_REFERENCE(RC) (CAIRO_REFERENCE_COUNT_GET_VALUE (RC) > 0) + +#endif |