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add way to log where lock conflicts are #55120

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add way to log where lock conflicts are #55120

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add way to print where lock conflicts are
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@IanButterworth
IanButterworth committed Jul 14, 2024
commit 1543d06bd8b6bfb99fe534975b9d5c1f3fd80bdc
9 changes: 9 additions & 0 deletions base/lock.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -134,6 +134,8 @@ end
return false
end

const TRACE_LOCK_CONFLICTS = Ref{Bool}(false)

"""
lock(lock)

Expand All @@ -160,6 +162,13 @@ Each `lock` must be matched by an [`unlock`](@ref).
finally
unlock(c.lock)
end
if TRACE_LOCK_CONFLICTS[]
try
error()
catch
println("lock conflict", sprint(show_backtrace, catch_backtrace()))
end
end
end)(rl)
return
end
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