We've written a small test case against Mono 2.7 (r146315) that confirms that WaitAny() does not return in a consistent amount of time, or sometimes at all when waiting on more than one WaitHandle. It also appears that there are no test cases in Mono for this case.
Our attached program takes 2 arguments. The first is the number of milliseconds to wait before the wait handles are set, the second is the number of milliseconds to wait in before exiting to give the thread pool time to notify. We're running these tests on Mac OS X, if that helps. Example of Failure case: ws1048:Mono Patches tom.philpot$ /opt/mono/bin/mono WaitAnyTest.exe 35000 10000 Setup wait handles, sleeping for 35s... Wait2: Calling WaitAny with 2 WaitHandles Wait1: Calling WaitAny with 1 WaitHandle done sleeping. Setting event 2. Sleeping for 10s to see if wait handles respond. Wait1: WaitAny(1) returned 0. Example of Successful case: ws1048:Mono Patches tom.philpot$ /opt/mono/bin/mono WaitAnyTest.exe 5000 10000 Setup wait handles, sleeping for 5s... Wait1: Calling WaitAny with 1 WaitHandle Wait2: Calling WaitAny with 2 WaitHandles done sleeping. Setting event 2. Sleeping for 10s to see if wait handles respond. Wait1: WaitAny(1) returned 0. Wait2: WaitAny(2) returned 1. RegisteredWaitForSingleObjectCallback called.
WaitAnyTest.cs
Description: Binary data
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