1/*-------------------------------------------------------------------------
2 * drawElements Utility Library
3 * ----------------------------
4 *
5 * Copyright 2014 The Android Open Source Project
6 *
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
10 *
11 *      http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 *
19 *//*!
20 * \file
21 * \brief Periodic timer test.
22 *//*--------------------------------------------------------------------*/
23
24#include "deTimerTest.h"
25
26#include "deTimer.h"
27#include "deRandom.h"
28#include "deThread.h"
29
30#include <stdio.h>
31
32static void timerCallback (void* arg)
33{
34	volatile int* numCalls = (volatile int*)arg;
35	++(*numCalls);
36}
37
38void deTimer_selfTest (void)
39{
40	const int		numIters				= 25;
41	const int		minInterval				= 1;
42	const int		maxInterval				= 100;
43	const int		intervalSleepMultiplier	= 5;
44	int				iter;
45	deRandom		rnd;
46	deTimer*		timer					= DE_NULL;
47	volatile int	numCalls				= 0;
48
49	deRandom_init(&rnd, 6789);
50
51	timer = deTimer_create(timerCallback, (void*)&numCalls);
52	DE_TEST_ASSERT(timer);
53
54	for (iter = 0; iter < numIters; iter++)
55	{
56		deBool	isSingle		= deRandom_getFloat(&rnd) < 0.25f;
57		int		interval		= minInterval + (int)(deRandom_getUint32(&rnd) % (deUint32)(maxInterval-minInterval+1));
58		int		expectedCalls	= isSingle ? 1 : intervalSleepMultiplier;
59		deBool	scheduleOk		= DE_FALSE;
60
61		printf("Iter %d / %d: %d ms %s timer\n", iter+1, numIters, interval, (isSingle ? "single" : "interval"));
62		numCalls = 0;
63
64		if (isSingle)
65			scheduleOk = deTimer_scheduleSingle(timer, interval);
66		else
67			scheduleOk = deTimer_scheduleInterval(timer, interval);
68
69		DE_TEST_ASSERT(scheduleOk);
70
71		deSleep(interval*intervalSleepMultiplier);
72		deTimer_disable(timer);
73		deSleep(interval);
74
75		printf("  timer fired %d times, expected %d\n", numCalls, expectedCalls);
76		DE_TEST_ASSERT(!isSingle || numCalls == 1);
77	}
78
79	deTimer_destroy(timer);
80}
81