diff options
author | Jenkins2 <jenkins2@gerrit.asterisk.org> | 2018-01-30 06:54:00 -0600 |
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committer | Gerrit Code Review <gerrit2@gerrit.digium.api> | 2018-01-30 06:54:00 -0600 |
commit | 652dc0d38cffd0d88d6cd9931a0c2cbb805a5aec (patch) | |
tree | 4791216674305e6a90418888aea86af12347537d /include | |
parent | a231e1d155130f49f0235a20e6974b4be91c729f (diff) | |
parent | 6fbd85522896c9c94281ed775c98a041721de424 (diff) |
Merge "Build System: Add support for __atomic built-in operators."
Diffstat (limited to 'include')
-rw-r--r-- | include/asterisk/autoconfig.h.in | 5 | ||||
-rw-r--r-- | include/asterisk/lock.h | 14 |
2 files changed, 16 insertions, 3 deletions
diff --git a/include/asterisk/autoconfig.h.in b/include/asterisk/autoconfig.h.in index f8bd0e376..18f9d4e75 100644 --- a/include/asterisk/autoconfig.h.in +++ b/include/asterisk/autoconfig.h.in @@ -188,6 +188,9 @@ /* Define to 1 if you have the curses library. */ #undef HAVE_CURSES +/* Define to 1 if your C compiler provides __atomic operations. */ +#undef HAVE_C_ATOMICS + /* Define if your system has the DAHDI headers. */ #undef HAVE_DAHDI @@ -292,7 +295,7 @@ /* Define to 1 if you have the `ftruncate' function. */ #undef HAVE_FTRUNCATE -/* Define to 1 if your GCC C compiler provides atomic operations. */ +/* Define to 1 if your GCC C compiler provides __sync atomic operations. */ #undef HAVE_GCC_ATOMICS /* Define to 1 if you have the `getcwd' function. */ diff --git a/include/asterisk/lock.h b/include/asterisk/lock.h index 58c9a8383..d912b56d3 100644 --- a/include/asterisk/lock.h +++ b/include/asterisk/lock.h @@ -640,7 +640,12 @@ int ast_atomic_fetchadd_int_slow(volatile int *p, int v); * can be used to generate unique identifiers. */ -#if defined(HAVE_GCC_ATOMICS) +#if defined(HAVE_C_ATOMICS) +AST_INLINE_API(int ast_atomic_fetchadd_int(volatile int *p, int v), +{ + return __atomic_fetch_add(p, v, __ATOMIC_RELAXED); +}) +#elif defined(HAVE_GCC_ATOMICS) AST_INLINE_API(int ast_atomic_fetchadd_int(volatile int *p, int v), { return __sync_fetch_and_add(p, v); @@ -687,7 +692,12 @@ AST_INLINE_API(int ast_atomic_fetchadd_int(volatile int *p, int v), /*! \brief decrement *p by 1 and return true if the variable has reached 0. * Useful e.g. to check if a refcount has reached 0. */ -#if defined(HAVE_GCC_ATOMICS) +#if defined(HAVE_C_ATOMICS) +AST_INLINE_API(int ast_atomic_dec_and_test(volatile int *p), +{ + return __atomic_sub_fetch(p, 1, __ATOMIC_RELAXED) == 0; +}) +#elif defined(HAVE_GCC_ATOMICS) AST_INLINE_API(int ast_atomic_dec_and_test(volatile int *p), { return __sync_sub_and_fetch(p, 1) == 0; |