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/*
* myth_sleep_queue.c --- unit test myth_sleep_queue
*/
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
//#include <myth/myth.h>
#include "../src/myth_sleep_queue_func.h"
myth_sleep_queue_t q[1];
typedef struct queue_item {
struct queue_item * next;
long val;
int last;
} queue_item;
typedef struct {
long n;
long id;
long nthreads;
pthread_t tid;
queue_item my_item;
queue_item * last_item;
} arg_t;
void * worker(void * arg_) {
arg_t * arg = (arg_t *)arg_;
long n = arg->n;
long i;
arg->my_item.next = 0;
arg->my_item.val = 0;
arg->my_item.last = 0;
queue_item * item = &arg->my_item;
for (i = 0; i < n; i++) {
myth_sleep_queue_enq(q, (myth_sleep_queue_item *)item);
item = (queue_item *)myth_sleep_queue_deq(q);
assert(item);
/* overwrite next pointer right after dequeued */
item->next = (queue_item *)4;
item->val++;
}
if (item) {
item->last = 1;
}
return 0;
}
int main(int argc, char ** argv) {
long nthreads = (argc > 1 ? atol(argv[1]) : 4);
long n = (argc > 2 ? atol(argv[2]) : 1000);
arg_t args[nthreads];
long i;
myth_sleep_queue_init(q);
for (i = 0; i < nthreads; i++) {
args[i].n = n;
args[i].id = i;
args[i].nthreads = nthreads;
pthread_create(&args[i].tid, 0, worker, &args[i]);
}
for (i = 0; i < nthreads; i++) {
pthread_join(args[i].tid, 0);
}
long vals = 0;
for (i = 0; i < nthreads; i++) {
vals += args[i].my_item.val;
assert(args[i].my_item.last);
}
assert(vals == n * nthreads);
assert(q->head == 0);
assert(q->tail == 0);
myth_sleep_queue_destroy(q);
printf("OK\n");
return 0;
}
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