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atomic: Add plain atomic_load/store_bool()

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Reviewed by:	kib
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D36078
This commit is contained in:
Mark Johnston 2022-08-09 16:08:29 -04:00
parent 3ba8e9dc4a
commit 2bed73739a
1 changed files with 11 additions and 0 deletions
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11
sys/sys/atomic_common.h
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@ -39,6 +39,10 @@
#include <sys/cdefs.h>
#include <sys/types.h>
#define __atomic_load_bool_relaxed(p) (*(volatile _Bool *)(p))
#define __atomic_store_bool_relaxed(p, v) \
(*(volatile _Bool *)(p) = (_Bool)(v))
#define __atomic_load_char_relaxed(p) (*(volatile u_char *)(p))
#define __atomic_load_short_relaxed(p) (*(volatile u_short *)(p))
#define __atomic_load_int_relaxed(p) (*(volatile u_int *)(p))
@ -70,6 +74,11 @@
*/
#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) || \
__has_extension(c_generic_selections)
#define atomic_load_bool(p) \
_Generic(*(p), _Bool: __atomic_load_bool_relaxed(p))
#define atomic_store_bool(p, v) \
_Generic(*(p), _Bool: __atomic_store_bool_relaxed(p, v))
#define __atomic_load_generic(p, t, ut, n) \
_Generic(*(p), \
t: __atomic_load_ ## n ## _relaxed(p), ut: __atomic_load_ ## n ## _relaxed(p))
@ -77,6 +86,8 @@
_Generic(*(p), \
t: __atomic_store_ ## n ## _relaxed(p, v), ut: __atomic_store_ ## n ## _relaxed(p, v))
#else
#define atomic_load_bool(p) __atomic_load_bool_relaxed(p)
#define atomic_store_bool(p, v) __atomic_store_bool_relaxed(p, v)
#define __atomic_load_generic(p, t, ut, n) __atomic_load_ ## n ## _relaxed(p)
#define __atomic_store_generic(p, v, t, ut, n) __atomic_store_ ## n ## _relaxed(p, v)
#endif