Linked by Hadrien Grasland on Fri 27th May 2011 11:34 UTC
General Development After having an interesting discussion with Brendan on the topic of deadlocks in threaded and asynchronous event handling systems (see the comments on this blog post), I just had something to ask to the developers on OSnews: could you live without blocking API calls? Could you work with APIs where lengthy tasks like writing to a file, sending a signal, doing network I/O, etc is done in a nonblocking fashion, with only callbacks as a mechanism to return results and notify your software when an operation is done?
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Well you then know not much about how Java and C# synchronisation mechanisms work. If you're into Java I suggest watching some of Cliff Click's tech talks on concurrency and memory model.

Reentrant mutex or lock works by allowing the same thread to acquire it more than one time. Also requires it to be released the number of times it was acquired. It essentially has the owning thread + counter.

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