[Webkit-unassigned] [Bug 125305] New: Incorrect usage of ThreadingOnce class.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=125305

           Summary: Incorrect usage of ThreadingOnce class.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: peavo at outlook.com


I have used the ThreadingOnce class incorrectly.

One cannot rely on that statics are threadsafe, so it can't be used as a static within a function.
On Mac, the class cannot be used as a global static, as global constructors/destructors fails to compile with the current compiler settings.

Based on this, I think the best way is to use the pthread implementation on Mac/Unix/..., and use the ThreadingOnce class for platforms which doesn't use pthreads.

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