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| author | Mark Johnston <markj@FreeBSD.org> | 2022-08-09 20:08:29 +0000 |
|---|---|---|
| committer | Mark Johnston <markj@FreeBSD.org> | 2022-08-16 20:34:29 +0000 |
| commit | 3b9fc833707cdcff37faba3625aa7164d6c39dbe (patch) | |
| tree | 72da7bf805a3a3433bd151b3a9df170d229419ba | |
| parent | c8cc66928b8bba07b3c50ab346035848ab685e03 (diff) | |
| download | src-3b9fc833707cdcff37faba3625aa7164d6c39dbe.tar.gz src-3b9fc833707cdcff37faba3625aa7164d6c39dbe.zip | |
atomic: Add plain atomic_load/store_bool()
Reviewed by: kib
Sponsored by: The FreeBSD Foundation
(cherry picked from commit 2bed73739aac352299222a18f669a03544c7c9e2)
| -rw-r--r-- | sys/sys/atomic_common.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/sys/sys/atomic_common.h b/sys/sys/atomic_common.h index a34198fda88a..04281ae8f2ed 100644 --- a/sys/sys/atomic_common.h +++ b/sys/sys/atomic_common.h @@ -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 |