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sttuff

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This commit is contained in:
p-w-rs
2022-09-22 14:34:03 -05:00
parent c506ca8b3b
commit ed1585d26b
32 changed files with 253 additions and 52 deletions
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20
Examples/pthreads/pthreads5.c
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@@ -17,8 +17,10 @@
// Returns 1 if prime, 0 if not prime
int is_prime(int v)
{
for(int i = 2; i < v; i++) {
if(v % i == 0) {
for (int i = 2; i < v; i++)
{
if (v % i == 0)
{
return 0;
}
}
@@ -29,12 +31,15 @@ int is_prime(int v)
// calls is_prime to check if the input argument is prime
//
// NOTE: that parameters and return value are pointers
void* thread_routine(void* args)
void *thread_routine(void *args)
{
int* val = (int*)args;
if(is_prime(*val)) {
int *val = (int *)args;
if (is_prime(*val))
{
printf("THREAD %lu FOUND that %d is prime\n", pthread_self(), *val);
} else {
}
else
{
printf("THREAD %lu FOUND that %d is not prime\n", pthread_self(), *val);
}
return NULL;
@@ -49,7 +54,8 @@ pthread_t start_thread(int val)
{
pthread_t thr;
printf("Before thread creation val=%d\n", val);
if(pthread_create(&thr, NULL, thread_routine, (void*)&val) == -1) {
if (pthread_create(&thr, NULL, thread_routine, (void *)&val) == -1)
{
printf("COULD NOT CREATE A THREAD\n");
exit(EXIT_FAILURE);
}