diff options
| author | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-08-13 21:34:20 +0000 |
|---|---|---|
| committer | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-08-13 21:34:20 +0000 |
| commit | 48b6bd74e2febde095ac85d818e94c0e58677647 (patch) | |
| tree | 73348a2cf6a66b1f1d6620b93109b7f7dfb0ca03 /internal.h | |
| parent | 4d2e0fffb08f0418fa6995be2e15aad7ee11b048 (diff) | |
thread_pthread.c: eliminate timer thread by restructuring GVL
This reverts commit 194a6a2c68e9c8a3536b24db18ceac87535a6051 (r64203).
Race conditions which caused the original reversion will be fixed
in the subsequent commit.
[ruby-core:88360] [Misc #14937]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64352 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'internal.h')
| -rw-r--r-- | internal.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/internal.h b/internal.h index 072c5ce158..fbac11fe9e 100644 --- a/internal.h +++ b/internal.h @@ -77,6 +77,9 @@ extern "C" { # define __has_extension __has_feature #endif +/* Prevent compiler from reordering access */ +#define ACCESS_ONCE(type,x) (*((volatile type *)&(x))) + #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L) # define STATIC_ASSERT(name, expr) _Static_assert(expr, #name ": " #expr) #elif GCC_VERSION_SINCE(4, 6, 0) || __has_extension(c_static_assert) |