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| author | Koichi Sasada <ko1@atdot.net> | 2020-10-19 16:47:32 +0900 |
|---|---|---|
| committer | Koichi Sasada <ko1@atdot.net> | 2020-10-20 01:05:06 +0900 |
| commit | 319afed20fba8f9b44611d16e4930260f7b56b86 (patch) | |
| tree | 39d24da0464a39a2bfbc93f4ab5849945bc6f652 /thread_pthread.h | |
| parent | 3f97940252a37db6e601b4bb1aa1e87204f769df (diff) | |
| download | ruby-319afed20fba8f9b44611d16e4930260f7b56b86.tar.gz | |
Use language TLS specifier if it is possible.
To access TLS, it is faster to use language TLS specifier instead
of using pthread_get/setspecific functions.
Original proposal is: Use native thread locals. #3665
Diffstat (limited to 'thread_pthread.h')
| -rw-r--r-- | thread_pthread.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/thread_pthread.h b/thread_pthread.h index d14857b05a..fa375b3e55 100644 --- a/thread_pthread.h +++ b/thread_pthread.h @@ -83,6 +83,14 @@ typedef struct rb_global_vm_lock_struct { int wait_yield; } rb_global_vm_lock_t; + +#if __STDC_VERSION__ >= 201112 + #define RB_THREAD_LOCAL_SPECIFIER _Thread_local +#elif defined(__GNUC__) + /* note that ICC (linux) and Clang are covered by __GNUC__ */ + #define RB_THREAD_LOCAL_SPECIFIER __thread +#else + typedef pthread_key_t native_tls_key_t; static inline void * @@ -102,5 +110,20 @@ native_tls_set(native_tls_key_t key, void *ptr) rb_bug("pthread_setspecific error"); } } +#endif + +RUBY_SYMBOL_EXPORT_BEGIN +#ifdef RB_THREAD_LOCAL_SPECIFIER + #if __APPLE__ + // on Darwin, TLS can not be accessed across .so + struct rb_execution_context_struct *rb_current_ec(); + void rb_current_ec_set(struct rb_execution_context_struct *); + #else + RUBY_EXTERN RB_THREAD_LOCAL_SPECIFIER struct rb_execution_context_struct *ruby_current_ec; + #endif +#else + RUBY_EXTERN native_tls_key_t ruby_current_ec_key; +#endif +RUBY_SYMBOL_EXPORT_END #endif /* RUBY_THREAD_PTHREAD_H */ |