Reader/writer: Priority Readers

• Writer:

ForCS.wait();

CS;

ForCS.signal();

• Reader:

ES.wait();

NumRdr = NumRdr + 1;

if NumRdr = 1 ForCS.wait();

ES.signal();

CS;

ES.wait();

NumRdr = NumRdr -1;

If NumRdr = 0 ForCS.signal();

ES.signal();

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