void semWait(semaphore s) s.count--; if (s.count < 0) { /* place this process in s.queue */; /* block this process */;

void semWait(semaphore s) s.count--; if (s.count < 0) { /* place this process in s.queue /; / block this process */;

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

how does the structure if counting semaphore primitives differ frim binary semaphore primitives?

struct semaphore {
int count;
queueType queue;
};
void semWait (semaphore s)
s.count--;
if (s.count < 0) {
/* place this process in s.queue */;
/* block this process */;
void semSignal (semaphore s)
{
s.count++;
if (s.count<= 0) {
/* remove a process P from s.queue */;
/* place process P on ready list */;

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