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By gst
via fanf.livejournal.com
Published: Aug 10 2007 / 18:51
Erlang is an excellent language for implementing distributed systems. One of the reasons for this is the semantics of its message-passing primitives. (Other reasons include the way it isolates processes and its distributed failure handling.)
Erlang's send operation is non-blocking, and sends a message to a particular process. Its receive operation can block (with an optional timeout) and can selectively pick messages from the process's mailbox out-of-order, which is useful for avoiding state explosion or tedious book-keeping.
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