tree 4959b4b8301e749eed138a168f6e833311cd5389
parent 48b60d22bca0158d194b78481ff86b0ac251243f
author Chi Wang <chiwang@google.com> 1647880649 +0800
committer GitHub <noreply@github.com> 1647880649 +0100
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Remote: Fix crashes by InterruptedException when dynamic execution is enabled. (#15091)

Fixes #14433.

The root cause is, inside `RemoteExecutionCache`, the result of `FindMissingDigests` is shared with other threads without considering error handling. For example, if there are two or more threads uploading the same input and one thread got interrupted when waiting for the result of `FindMissingDigests` call, the call is cancelled and others threads still waiting for the upload will receive upload error due to the cancellation which is wrong.

This PR fixes this by effectively applying reference count to the result of `FindMissingDigests` call so that if one thread got interrupted, as long as there are other threads depending on the result, the call won't be cancelled and the upload can continue.

Closes #15001.

PiperOrigin-RevId: 436180205