The solution to the first readers-writers problem in Figure 12.26 gives priority to readers, but this priority

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The solution to the first readers-writers problem in Figure 12.26 gives priority to readers, but this priority is weak in the sense that a writer leaving its critical section might restart a waiting writer instead of a waiting reader. Describe a scenario where this weak priority would allow a collection of writers to starve a reader.

 Figure 12.26

/* Global variables */ int readcnt; /* Initially 0 */ sem_t mutex, w; /* Both initially = 1 */ void reader

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Computer Systems A Programmers Perspective

ISBN: 9781292101767

3rd Global Edition

Authors: Randal E. Bryant, David R. O'Hallaron

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