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Gary Hale
committed
on 02 Oct 18
Reintroduce some limited synchronization for configuration resolution
This ensures that only one thread is resolving the graph of a given
co… Show more
Reintroduce some limited synchronization for configuration resolution

This ensures that only one thread is resolving the graph of a given

configuration at a time.

When we step over to other projects while resolving configurations, we

will release the current project lock.  This can allow other tasks to

start running.  When they do, there can be issues when they try to

continue resolving the graph of the same configuration as the first

task.  For example, a beforeResolve hook can cause the project lock

to be released (perhaps by resolving another configuration) and then

another task can put the configuration in an unexpected state before

the project lock can be reacquired..

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