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/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012,2013 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "ch.h"
#include "test.h"
/**
* @page test_threads Threads and Scheduler test
*
* File: @ref testthd.c
*
* <h2>Description</h2>
* This module implements the test sequence for the @ref scheduler,
* @ref threads and @ref time subsystems.<br>
* Note that the tests on those subsystems are formally required but most of
* their functionality is already demonstrated because the test suite itself
* depends on them, anyway double check is good.
*
* <h2>Objective</h2>
* Objective of the test module is to cover 100% of the subsystems code.
*
* <h2>Preconditions</h2>
* None.
*
* <h2>Test Cases</h2>
* - @subpage test_threads_001
* - @subpage test_threads_002
* - @subpage test_threads_003
* - @subpage test_threads_004
* .
* @file testthd.c
* @brief Threads and Scheduler test source file
* @file testthd.h
* @brief Threads and Scheduler test header file
*/
/**
* @page test_threads_001 Ready List functionality #1
*
* <h2>Description</h2>
* Five threads, with increasing priority, are enqueued in the ready list
* and atomically executed.<br>
* The test expects the threads to perform their operations in increasing
* priority order regardless of the initial order.
*/
static msg_t thread(void *p) {
test_emit_token(*(char *)p);
return 0;
}
static void thd1_execute(void) {
threads[0] = chThdCreateStatic(wa[0], WA_SIZE, chThdGetPriority()-5, thread, "E");
threads[1] = chThdCreateStatic(wa[1], WA_SIZE, chThdGetPriority()-4, thread, "D");
threads[2] = chThdCreateStatic(wa[2], WA_SIZE, chThdGetPriority()-3, thread, "C");
threads[3] = chThdCreateStatic(wa[3], WA_SIZE, chThdGetPriority()-2, thread, "B");
threads[4] = chThdCreateStatic(wa[4], WA_SIZE, chThdGetPriority()-1, thread, "A");
test_wait_threads();
test_assert_sequence(1, "ABCDE");
}
ROMCONST struct testcase testthd1 = {
"Threads, enqueuing test #1",
NULL,
NULL,
thd1_execute
};
/**
* @page test_threads_002 Ready List functionality #2
*
* <h2>Description</h2>
* Five threads, with pseudo-random priority, are enqueued in the ready list
* and atomically executed.<br>
* The test expects the threads to perform their operations in increasing
* priority order regardless of the initial order.
*/
static void thd2_execute(void) {
threads[1] = chThdCreateStatic(wa[1], WA_SIZE, chThdGetPriority()-4, thread, "D");
threads[0] = chThdCreateStatic(wa[0], WA_SIZE, chThdGetPriority()-5, thread, "E");
threads[4] = chThdCreateStatic(wa[4], WA_SIZE, chThdGetPriority()-1, thread, "A");
threads[3] = chThdCreateStatic(wa[3], WA_SIZE, chThdGetPriority()-2, thread, "B");
/* Done this way for coverage of chThdCreateI() and chThdResume().*/
chSysLock();
threads[2] = chThdCreateI(wa[2], WA_SIZE, chThdGetPriority()-3, thread, "C");
chSysUnlock();
chThdResume(threads[2]);
test_wait_threads();
test_assert_sequence(1, "ABCDE");
}
ROMCONST struct testcase testthd2 = {
"Threads, enqueuing test #2",
NULL,
NULL,
thd2_execute
};
/**
* @page test_threads_003 Threads priority change test
*
* <h2>Description</h2>
* A series of priority changes are performed on the current thread in order
* to verify that the priority change happens as expected.<br>
* If the @p CH_USE_MUTEXES option is enabled then the priority changes are
* also tested under priority inheritance boosted priority state.
*/
static void thd3_execute(void) {
tprio_t prio, p1;
prio = chThdGetPriority();
p1 = chThdSetPriority(prio + 1);
test_assert(1, p1 == prio,
"unexpected returned priority level");
test_assert(2, chThdGetPriority() == prio + 1,
"unexpected priority level");
p1 = chThdSetPriority(p1);
test_assert(3, p1 == prio + 1,
"unexpected returned priority level");
test_assert(4, chThdGetPriority() == prio,
"unexpected priority level");
#if CH_USE_MUTEXES || defined(__DOXYGEN__)
/* Simulates a priority boost situation (p_prio > p_realprio).*/
chSysLock();
chThdSelf()->p_prio += 2;
chSysUnlock();
test_assert(5, chThdGetPriority() == prio + 2,
"unexpected priority level");
/* Tries to raise but below the boost level. */
p1 = chThdSetPriority(prio + 1);
test_assert(6, p1 == prio,
"unexpected returned priority level");
test_assert(7, chThdSelf()->p_prio == prio + 2,
"unexpected priority level");
test_assert(8, chThdSelf()->p_realprio == prio + 1,
"unexpected returned real priority level");
/* Tries to raise above the boost level. */
p1 = chThdSetPriority(prio + 3);
test_assert(9, p1 == prio + 1,
"unexpected returned priority level");
test_assert(10, chThdSelf()->p_prio == prio + 3,
"unexpected priority level");
test_assert(11, chThdSelf()->p_realprio == prio + 3,
"unexpected real priority level");
chSysLock();
chThdSelf()->p_prio = prio;
chThdSelf()->p_realprio = prio;
chSysUnlock();
#endif
}
ROMCONST struct testcase testthd3 = {
"Threads, priority change",
NULL,
NULL,
thd3_execute
};
/**
* @page test_threads_004 Threads delays test
*
* <h2>Description</h2>
* Delay APIs and associated macros are tested, the invoking thread is verified
* to wake up at the exact expected time.
*/
static void thd4_execute(void) {
systime_t time;
test_wait_tick();
/* Timeouts in microseconds.*/
time = chTimeNow();
chThdSleepMicroseconds(100000);
test_assert_time_window(1, time + US2ST(100000), time + US2ST(100000) + 1);
/* Timeouts in milliseconds.*/
time = chTimeNow();
chThdSleepMilliseconds(100);
test_assert_time_window(2, time + MS2ST(100), time + MS2ST(100) + 1);
/* Timeouts in seconds.*/
time = chTimeNow();
chThdSleepSeconds(1);
test_assert_time_window(3, time + S2ST(1), time + S2ST(1) + 1);
/* Absolute timelines.*/
time = chTimeNow() + MS2ST(100);
chThdSleepUntil(time);
test_assert_time_window(4, time, time + 1);
}
ROMCONST struct testcase testthd4 = {
"Threads, delays",
NULL,
NULL,
thd4_execute
};
/**
* @brief Test sequence for threads.
*/
ROMCONST struct testcase * ROMCONST patternthd[] = {
&testthd1,
&testthd2,
&testthd3,
&testthd4,
NULL
};
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