tree a4d4d88010ab54209c8ca6a2f0d2406d2b25666a
parent e6ce57794fbc8c05c8dc9e3ecab7496fa0880e4f
author ggaren@apple.com <ggaren@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1525022953 +0000
committer ggaren@apple.com <ggaren@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1525022953 +0000

WordLock doesn't need per-thread data
https://bugs.webkit.org/show_bug.cgi?id=185119

Reviewed by Yusuke Suzuki.

The stack is per-thread data, so we can stack-allocate our ThreadData.

This eliminates malloc() and high-level WTF threading primitives from
WordLock, making WordLock more portable to non-WTF code, including
bmalloc.

(NOTE: This patch makes the bug fixed in r231148 100% reproducible.)

* wtf/WordLock.cpp:
(WTF::WordLock::lockSlow): Allocate ThreadData on the stack.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@231151 268f45cc-cd09-0410-ab3c-d52691b4dbfc