| Monitor |
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| ä | Awaiting
processes are either in the entrance queue |
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| or in
a condition queue |
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| ä | A
process puts itself into condition queue cn by |
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| issuing
cwait(cn) |
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| ä | csignal(cn)
brings into the monitor 1 process in |
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| condition
cn queue |
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| ä | Hence
csignal(cn) blocks the calling process and |
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| puts
it in the urgent queue (unless signal is the last |
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| operation
of the monitor procedure) |
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