[Webkit-unassigned] [Bug 96858] New: JSC: Windows port needs a proper JSLock implementation

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=96858

           Summary: JSC: Windows port needs a proper JSLock implementation
           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: mark.lam at apple.com


Currently, the JSLock methods are implemented for platforms that support pthreads.  As a result, the Windows port is only using a stub JSLock that does nothing.  This stub implementation causes ASSERT(!m_apiLock.currentThreadIsHoldingLock()) (in JSGlobalData::~JSGlobalData()) to always fail.  In addition, the stub JSLock implementation does not provide the needed synchronization, and as a result, the Windows port crashes or fails in intermittent ways when running the layout tests.

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