hw-ond - #include #include #include...

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Sheet1 Page 1 #include <pthread.h> #include <stdio.h> #include <stdlib.h> #define NUM_THREADS 3 #define TCOUNT 10 #define COUNT_LIMIT 12 int count = 0 int thread_ids[3] = {0,1,2} pthread_mutex_t count_mutex pthread_cond_t count_threshold_cv void *inc_count(void *idp) { int j,i double result=0.0 int *my_id = idp for (i=0 i < TCOUNT i++) { count++ /* Check the value of count and signal waiting thread when condition is reached. Note that this occurs while mutex is locked. */ if (count == COUNT_LIMIT) { printf("inc_count(): thread %d, count = %d Threshold reached.\n", *my_id, count) } printf("inc_count(): thread %d, count = %d, unlocking mutex\n", *my_id, count) /* Do some work so threads can alternate on mutex lock */ for (j=0 j < 1000 j++) result = result + (double)random() } pthread_exit(NULL) } void *watch_count(void *idp) { int *my_id = idp printf("Starting watch_count(): thread %d\n", *my_id)
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hw-ond - #include #include #include...

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