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Here we have this code #include #include #include long long sum=0,num=2000000; pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; void *mySumFun(void *vargp) { int step=*(int *) vargp; for(int i=0;i

Here we have this code #include #include #include long long sum=0,num=2000000; pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; void *mySumFun(void *vargp) { int step=*(int *) vargp; for(int i=0;i

Computer Networking: A Top-Down Approach (7th Edition)
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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Here we have this code

#include <stdio.h> #include <stdlib.h> #include <pthread.h> long long sum=0,num=2000000; pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; void *mySumFun(void *vargp) { int step=*(int *) vargp; for(int i=0;i<num;i++) { //pthread_mutex_lock(&mutex); sum+=step; // pthread_mutex_unlock(&mutex); } return NULL; } int main() { pthread_t tid1,tid2; int step1=1, step2=-1; pthread_create(&tid1, NULL, mySumFun, &step1); pthread_create(&tid2, NULL, mySumFun, &step2); pthread_join(tid2, NULL); pthread_join(tid1, NULL); printf("The sum is = %lld \n", sum); exit(0); }

 

Use hardware mechanism test and set or swap to solve synchronization for the same problem that solved by that code.

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