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/*
* Copyright (c) 2009-2012 Niels Provos and Nick Mathewson
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdlib.h>
#include "event2/event_struct.h"
#include "tinytest.h"
#include "tinytest_macros.h"
#include "../minheap-internal.h"
static void
set_random_timeout(struct event *ev)
{
ev->ev_timeout.tv_sec = rand();
ev->ev_timeout.tv_usec = rand() & 0xfffff;
ev->ev_timeout_pos.min_heap_idx = -1;
}
static void
check_heap(struct min_heap *heap)
{
unsigned i;
for (i = 1; i < heap->n; ++i) {
unsigned parent_idx = (i-1)/2;
tt_want(evutil_timercmp(&heap->p[i]->ev_timeout,
&heap->p[parent_idx]->ev_timeout, >=));
}
}
static void
test_heap_randomized(void *ptr)
{
struct min_heap heap;
struct event *inserted[1024];
struct event *e, *last_e;
int i;
min_heap_ctor(&heap);
for (i = 0; i < 1024; ++i) {
inserted[i] = malloc(sizeof(struct event));
set_random_timeout(inserted[i]);
min_heap_push(&heap, inserted[i]);
}
check_heap(&heap);
tt_assert(min_heap_size(&heap) == 1024);
for (i = 0; i < 512; ++i) {
min_heap_erase(&heap, inserted[i]);
if (0 == (i % 32))
check_heap(&heap);
}
tt_assert(min_heap_size(&heap) == 512);
last_e = min_heap_pop(&heap);
while (1) {
e = min_heap_pop(&heap);
if (!e)
break;
tt_want(evutil_timercmp(&last_e->ev_timeout,
&e->ev_timeout, <=));
}
tt_assert(min_heap_size(&heap) == 0);
end:
for (i = 0; i < 1024; ++i)
free(inserted[i]);
min_heap_dtor(&heap);
}
struct testcase_t minheap_testcases[] = {
{ "randomized", test_heap_randomized, 0, NULL, NULL },
END_OF_TESTCASES
};
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