99 lines
2.9 KiB
C
99 lines
2.9 KiB
C
/* $NetBSD: regress_minheap.c,v 1.1.1.1 2013/04/11 16:43:33 christos Exp $ */
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/*
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* Copyright (c) 2009-2012 Niels Provos and Nick Mathewson
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdlib.h>
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#include "event2/event_struct.h"
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#include "tinytest.h"
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#include "tinytest_macros.h"
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#include "../minheap-internal.h"
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static void
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set_random_timeout(struct event *ev)
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{
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ev->ev_timeout.tv_sec = rand();
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ev->ev_timeout.tv_usec = rand() & 0xfffff;
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ev->ev_timeout_pos.min_heap_idx = -1;
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}
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static void
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check_heap(struct min_heap *heap)
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{
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unsigned i;
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for (i = 1; i < heap->n; ++i) {
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unsigned parent_idx = (i-1)/2;
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tt_want(evutil_timercmp(&heap->p[i]->ev_timeout,
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&heap->p[parent_idx]->ev_timeout, >=));
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}
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}
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static void
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test_heap_randomized(void *ptr)
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{
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struct min_heap heap;
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struct event *inserted[1024];
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struct event *e, *last_e;
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int i;
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min_heap_ctor(&heap);
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for (i = 0; i < 1024; ++i) {
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inserted[i] = malloc(sizeof(struct event));
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set_random_timeout(inserted[i]);
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min_heap_push(&heap, inserted[i]);
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}
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check_heap(&heap);
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tt_assert(min_heap_size(&heap) == 1024);
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for (i = 0; i < 512; ++i) {
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min_heap_erase(&heap, inserted[i]);
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if (0 == (i % 32))
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check_heap(&heap);
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}
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tt_assert(min_heap_size(&heap) == 512);
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last_e = min_heap_pop(&heap);
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while (1) {
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e = min_heap_pop(&heap);
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if (!e)
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break;
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tt_want(evutil_timercmp(&last_e->ev_timeout,
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&e->ev_timeout, <=));
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}
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tt_assert(min_heap_size(&heap) == 0);
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end:
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for (i = 0; i < 1024; ++i)
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free(inserted[i]);
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min_heap_dtor(&heap);
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}
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struct testcase_t minheap_testcases[] = {
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{ "randomized", test_heap_randomized, 0, NULL, NULL },
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END_OF_TESTCASES
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};
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