Code to read:

#include #include #include #include #include

sem_t s1; int c=0,x=0;

void *UpdateC1(void *arg) { int i; for(i=0;i

void *UpdateC2(void *arg) { int i,x=0; for(i=0;i

int main(int argc, char *argv[]) { int rt,i; pthread_t t[2];

if(sem_init(&s1, 0, 1)==-1)//Initialize the semaphore; { fprintf(stderr,"sem_init failed. errno=%d ",errno); exit(1); } rt=pthread_create( &t[0], NULL, UpdateC1, NULL); if( rt!=0 ) fprintf(stderr,"Thread %d creation failed: %d ", 0,rt); rt=pthread_create( &t[1], NULL, UpdateC2, NULL); if( rt!=0 ) fprintf(stderr,"Thread %d creation failed: %d ", 1,rt);

for(i=0;i

printf ("\t%c\t%c ",'a'+(c%2),'a'+(x%2)); return 0; }

3. Read given code RaceOrNot3.c and write all possible outputs of the program. Assume there will be no thread creation or joining failures or semaphore failures. If you believe there is only one possible output, you just need to write that output