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testing/ostest: add hrtimer API functional tests
Add functional tests for the newly added hrtimer APIs, including hrtimer_init(), hrtimer_start(), and hrtimer_cancel(). Signed-off-by: Chengdong Wang <[email protected]>
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‎testing/ostest/CMakeLists.txt‎

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@@ -153,6 +153,10 @@ if(CONFIG_TESTING_OSTEST)
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list(APPEND SRCS nxevent.c)
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endif()
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if(CONFIG_HRTIMER AND CONFIG_BUILD_FLAT)
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list(APPEND SRCS hrtimer.c)
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endif()
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if(CONFIG_BUILD_FLAT)
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list(APPEND SRCS wdog.c)
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endif()

‎testing/ostest/Makefile‎

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@@ -150,6 +150,12 @@ CSRCS += nxevent.c
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endif
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endif
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ifeq ($(CONFIG_HRTIMER),y)
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ifeq ($(CONFIG_BUILD_FLAT),y)
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CSRCS += hrtimer.c
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endif
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endif
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ifeq ($(CONFIG_BUILD_FLAT),y)
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CSRCS += wdog.c
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endif

‎testing/ostest/hrtimer.c‎

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/****************************************************************************
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* apps/testing/ostest/hrtimer.c
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/hrtimer.h>
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#include <stdio.h>
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#include <sched.h>
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#include "ostest.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define NSEC_PER_500MS (500 * NSEC_PER_MSEC)
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#define NSEC_MARGIN (5)
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/* Simple assertion macro for HRTimer test cases */
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#define HRTIMER_TEST(expr, value) \
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do \
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{ \
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ret = (expr); \
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if (ret != (value)) \
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{ \
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printf("ERROR: HRTimer test failed, line=%d ret=%d\n", \
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__LINE__, ret); \
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ASSERT(false); \
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} \
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} \
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while (0)
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/* Structure for HRTimer test tracking */
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struct hrtimer_test_s
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{
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hrtimer_t timer; /* HRTimer instance */
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uint64_t previous; /* Previous timestamp in nanoseconds */
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uint64_t now; /* Current timestamp in nanoseconds */
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uint32_t count; /* Number of timer expirations */
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uint32_t period; /* Expected period between expirations */
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bool active; /* True while the test is still running */
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};
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: hrtimer_test_init
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*
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* Description:
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* Initialize a hrtimer_test_s structure for a new test.
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*
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* Input Parameters:
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* test_hrtimer - Pointer to the test structure to initialize
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* period - Expected timer period in nanoseconds
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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static void hrtimer_test_init(FAR struct hrtimer_test_s *test_hrtimer,
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uint32_t period)
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{
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test_hrtimer->previous = 0;
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test_hrtimer->now = 0;
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test_hrtimer->count = 0;
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test_hrtimer->active = true;
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test_hrtimer->period = period;
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}
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/****************************************************************************
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* Name: test_hrtimer_callback
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*
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* Description:
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* HRTimer callback function for test.
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*
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* - Verifies the timer interval is exactly 500ms (nanosecond precision)
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* - Stops the test after 15 expirations
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* - Re-arms the timer in absolute mode
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*
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* Input Parameters:
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* hrtimer - Pointer to the expired HRTimer instance
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*
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* Returned Value:
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* Timer period in nanoseconds (NSEC_PER_500MS)
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*
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****************************************************************************/
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static uint32_t test_hrtimer_callback(FAR hrtimer_t *hrtimer)
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{
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struct timespec ts;
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uint32_t diff;
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int ret;
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FAR struct hrtimer_test_s *test =
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(FAR struct hrtimer_test_s *)hrtimer;
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/* Increment expiration count */
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test->count++;
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/* Get current system time */
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clock_systime_timespec(&ts);
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test->now = clock_time2nsec(&ts);
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/* Skip comparison for first two invocations */
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if (test->count > 2)
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{
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/* Verify the timer interval is exactly
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* 500ms with nsec resolution
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*/
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diff = (uint32_t)(test->now - test->previous);
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HRTIMER_TEST(NSEC_PER_500MS < diff + NSEC_MARGIN, true);
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HRTIMER_TEST(NSEC_PER_500MS > diff - NSEC_MARGIN, true);
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}
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test->previous = test->now;
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/* Stop the test after 15 expirations */
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if (test->count >= 15)
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{
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ret = hrtimer_cancel(hrtimer);
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HRTIMER_TEST(ret, 0);
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test->active = false;
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}
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return test->period;
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: hrtimer_test
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*
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* Description:
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* Entry point for high-resolution timer functional test.
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*
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* - Initializes a HRTimer
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* - Starts it with a 500ms relative timeout
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* - Verifies subsequent expirations occur at 500ms intervals
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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void hrtimer_test(void)
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{
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int ret;
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struct hrtimer_test_s test_hrtimer_500ms;
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/* Initialize test structure */
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hrtimer_test_init(&test_hrtimer_500ms, NSEC_PER_500MS);
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/* Initialize the high-resolution timer */
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hrtimer_init(&test_hrtimer_500ms.timer,
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test_hrtimer_callback,
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NULL);
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/* Start the timer with 500ms relative timeout */
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ret = hrtimer_start(&test_hrtimer_500ms.timer,
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test_hrtimer_500ms.period,
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HRTIMER_MODE_REL);
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HRTIMER_TEST(ret, OK);
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/* Wait until the test completes */
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while (test_hrtimer_500ms.active)
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{
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usleep(500 * USEC_PER_MSEC);
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}
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}

‎testing/ostest/ostest.h‎

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@@ -304,4 +304,8 @@ int sem_nfreeholders(void);
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void nxevent_test(void);
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#endif
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#if defined(CONFIG_SCHED_EVENTS) && defined(CONFIG_BUILD_FLAT)
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void hrtimer_test(void);
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#endif
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#endif /* __APPS_TESTING_OSTEST_OSTEST_H */

‎testing/ostest/ostest_main.c‎

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@@ -625,6 +625,14 @@ static int user_main(int argc, char *argv[])
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check_test_memory_usage();
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#endif
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#if defined(CONFIG_HRTIMER) && defined(CONFIG_BUILD_FLAT)
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/* Verify hrtimer */
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printf("\nuser_main: hrtimer test\n");
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hrtimer_test();
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check_test_memory_usage();
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#endif
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/* Compare memory usage at time ostest_main started until
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* user_main exits. These should not be identical, but should
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* be similar enough that we can detect any serious OS memory
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stdio_test();
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#ifdef SDCC
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/* I am not yet certain why SDCC does not like the following initilizers.
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/* I am not yet certain why SDCC does not like the following initializers.
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* It involves some issues with 2- vs 3-byte pointer types.
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*/
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