Bug 256931

Summary:	[webkitcorepy] Fix race condition in FileLock
Product:	WebKit	Reporter:	Jonathan Bedard <jbedard>
Component:	Tools / Tests	Assignee:	Jonathan Bedard <jbedard>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Jonathan Bedard 2023-05-17 17:15:41 PDT

If a process releases and then imiediately attempts to re-aquire a FileLock, we will end up with a race-condition if another process is also trying to do the same. FileLock should be robust against this race condition, since this is precisely the situation where a FileLock is most useful.

Comment 1 Radar WebKit Bug Importer 2023-05-17 17:16:19 PDT

<rdar://problem/109487762>

Comment 2 Jonathan Bedard 2023-05-17 17:19:21 PDT

Pull request: https://github.com/WebKit/WebKit/pull/13993

Comment 3 EWS 2023-05-22 07:40:06 PDT

Committed 264321@main (1c10cac85558): <https://commits.webkit.org/264321@main>

Reviewed commits have been landed. Closing PR #13993 and removing active labels.