[Webkit-unassigned] [Bug 174081] New: [WTF] Implemet WTF::ThreadGroup

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=174081

            Bug ID: 174081
           Summary: [WTF] Implemet WTF::ThreadGroup
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: utatane.tea at gmail.com

Currently, JSC has MachineThreads, which is a thread group.
However, it's implementation is a bit hacky: removing a dead thread from this group depends on per-MachineThreads' TLS destructor.
But it is not good. It exhausts so many TLS if we have many MachineThreads, which is not considered in Windows environment right now.

Let's move this to WTF.

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