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Add Atomthreads RTOS source files.

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Kelvin Lawson
2010-01-14 01:53:45 +00:00
parent 8521dcfe06
commit 6d599c6729
63 changed files with 16629 additions and 0 deletions
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tests/sem5.c Normal file
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/*
* Copyright (c) 2010, Kelvin Lawson. All rights reserved.
*
* 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. No personal names or organizations' names associated with the
* Atomthreads project may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE ATOMTHREADS PROJECT AND CONTRIBUTORS
* "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 PROJECT OR CONTRIBUTORS 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 "atom.h"
#include "atomtests.h"
#include "atomsem.h"
/* Test OS objects */
static ATOM_SEM sem1, sem2;
static ATOM_TCB tcb1;
static uint8_t test1_thread_stack[TEST_THREAD_STACK_SIZE];
/* Forward declarations */
static void test_thread_func (uint32_t data);
/**
* \b test_start
*
* Start semaphore test.
*
* This tests basic synchronisation between threads using a semaphore.
*
* A second thread is created, which blocks on a semaphore until posted
* by the main thread. Testing all aspects of this transaction proves
* the basic usage of semaphores as a synchronisation mechanism
* between threads.
*
* @retval Number of failures
*/
uint32_t test_start (void)
{
int failures;
/* Default to zero failures */
failures = 0;
/* Create sem with count zero for second thread to block on */
if (atomSemCreate (&sem1, 0) != ATOM_OK)
{
ATOMLOG (_STR("Error creating test semaphore 1\n"));
failures++;
}
/* Create sem to receive test-passed notification */
else if (atomSemCreate (&sem2, 0) != ATOM_OK)
{
ATOMLOG (_STR("Error creating test semaphore 1\n"));
failures++;
}
else
{
/* Create second thread */
if (atomThreadCreate(&tcb1, TEST_THREAD_PRIO, test_thread_func, 1,
&test1_thread_stack[TEST_THREAD_STACK_SIZE - 1]) != ATOM_OK)
{
/* Fail */
ATOMLOG (_STR("Error creating test thread\n"));
failures++;
}
/*
* The second thread has now been created and should block on
* sem1 until we increment it to 1 (sem1 was created with a
* count of zero). Once the second thread has stopped blocking
* on sem1, it will post sem2 to notify us that it has finished.
*
* We can test the count of sem2 before and after posting sem1
* to ensure that it was the posting of sem1 which caused the
* second thread to wake up.
*/
/*
* Wait a little while, then check the second thread hasn't
* already posted sem2, i.e. did not wait until sem1 was posted.
*/
atomTimerDelay (SYSTEM_TICKS_PER_SEC/4);
if (atomSemGet (&sem2, -1) != ATOM_WOULDBLOCK)
{
ATOMLOG (_STR("Did not wait\n"));
failures++;
}
/* Post sem1 to stop the second thread blocking */
else if (atomSemPut (&sem1) != ATOM_OK)
{
ATOMLOG (_STR("Put fail\n"));
failures++;
}
/* Now check that the second thread has woken up and posted sem2 */
else
{
/* Give the thread some time to wake up and post sem2 */
atomTimerDelay (SYSTEM_TICKS_PER_SEC/4);
/* Check that the second thread has now woken and posted sem2 */
if (atomSemGet (&sem2, -1) != ATOM_OK)
{
ATOMLOG (_STR("Sem2 not posted\n"));
failures++;
}
}
/* Delete semaphores, test finished */
if (atomSemDelete (&sem1) != ATOM_OK)
{
ATOMLOG (_STR("Delete failed\n"));
failures++;
}
if (atomSemDelete (&sem2) != ATOM_OK)
{
ATOMLOG (_STR("Delete failed\n"));
failures++;
}
}
/* Log final status */
if (failures == 0)
{
ATOMLOG (_STR("Pass\n"));
}
else
{
ATOMLOG (_STR("Fail(%d)\n"), failures);
}
/* Quit */
return failures;
}
/**
* \b test_thread_func
*
* Entry point for test thread.
*
* @param[in] data Unused (optional thread entry parameter)
*
* @return None
*/
static void test_thread_func (uint32_t data)
{
uint8_t status;
/* Block on sem1. Main thread will post when we should wake up. */
if ((status = atomSemGet (&sem1, 0)) != ATOM_OK)
{
/* Error getting semaphore, notify the status code */
ATOMLOG (_STR("G%d\n"), status);
}
/* Post sem2 to notify that we received the sem1 notification */
else if ((status = atomSemPut (&sem2)) != ATOM_OK)
{
/* Error putting semaphore, notify the status code */
ATOMLOG (_STR("P%d\n"), status);
}
/* Loop forever */
while (1)
{
atomTimerDelay (SYSTEM_TICKS_PER_SEC);
}
}