thomas at gazagnaire
Aug 2, 2012, 3:44 AM
Post #1 of 1
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Hi,
I am wondering why the subtask field is not protected in the function with_subtask in xen-api/ocaml/xenops/task_server.ml. It is not clear to me that the invariant "only one thread per task" is enforced in xenopsd (where there are *a lot* of asynchronous processes) and in the storage layer (ok, there is only one call to with_subtask here, and it seems relatively safe as the main task is short-lived and not passed around, but how do you ensure it will still be enforced in future changes). Is there any good reason to that ?
Thomas
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