/*
* Copyright (c) 2012, 2019 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Dornierstr. 4
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 <machine/rtems-bsd-kernel-space.h>
#include <assert.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/interrupt.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#define SWI_TEST_THREAD_PRIO (0)
// Time to wait for swi-test-handler
#define SWI_SLEEP_TIME (1)
enum arg {
HANDLER_NOT_VISITED,
HANDLER_VISITED,
};
// The swi handler function, that will be called by all tests.
void swi_test_handler(void *arg)
{
enum arg* argument = arg;
printf("This is swi_test_handler.\n");
*argument = HANDLER_VISITED;
}
void swi_test_normal_handler()
{
struct intr_event *test_intr_event = NULL;
enum arg argument = HANDLER_NOT_VISITED;
void *test_ih = NULL;
int retval = 0;
printf("== Create thread and install a functional handler.\n");
retval = swi_add(&test_intr_event, "swi_test", swi_test_handler, &argument,
SWI_TEST_THREAD_PRIO, 0, &test_ih);
assert(retval == 0);
swi_sched(test_ih, 0);
sleep(SWI_SLEEP_TIME);
assert(argument == HANDLER_VISITED);
}
void swi_test_exclusive_handler()
{
struct intr_event *test_intr_event = NULL;
enum arg argument = HANDLER_NOT_VISITED;
void *test_ih = NULL;
int retval = 0;
printf("== Create a thread with a exclusive handler.\n");
retval = swi_add(&test_intr_event, "swi_test", swi_test_handler, &argument,
SWI_TEST_THREAD_PRIO, INTR_EXCL, &test_ih);
assert(retval == 0);
swi_sched(test_ih, 0);
sleep(SWI_SLEEP_TIME);
assert(argument == HANDLER_VISITED);
}
void swi_test_error_number_of_processes_exceeded()
{
// [EAGAIN] The system-imposed limit on the total number of processes
// under execution would be exceeded. The limit is given by the
// sysctl(3) MIB variable KERN_MAXPROC.
#warning TODO: write test case
}
void swi_test_error_intr_entropy_set()
{
struct intr_event *test_intr_event = NULL;
enum arg argument = HANDLER_NOT_VISITED;
void *test_ih = NULL;
int retval = 0;
printf("== Set the INTR_ENTROPY flag.\n");
retval = swi_add(&test_intr_event, "swi_test", swi_test_handler, &argument,
SWI_TEST_THREAD_PRIO, INTR_ENTROPY, &test_ih);
assert(retval == EINVAL);
sleep(SWI_SLEEP_TIME);
assert(argument == HANDLER_NOT_VISITED);
}
void swi_test_error_point_to_hardware_interrupt_thread()
{
//[EINVAL] The ithdp argument points to a hardware interrupt thread.
#warning TODO: write test case
}
void swi_test_error_name_null()
{
struct intr_event *test_intr_event = NULL;
enum arg argument = HANDLER_NOT_VISITED;
void *test_ih = NULL;
int retval = 0;
printf("== Set name to NULL.\n");
retval = swi_add(&test_intr_event, NULL, swi_test_handler, &argument,
SWI_TEST_THREAD_PRIO, 0, &test_ih);
assert(retval == EINVAL);
sleep(SWI_SLEEP_TIME);
assert(argument == HANDLER_NOT_VISITED);
}
void swi_test_error_handler_null()
{
struct intr_event *test_intr_event = NULL;
enum arg argument = HANDLER_NOT_VISITED;
void *test_ih = NULL;
int retval = 0;
printf("== Set handler to NULL.\n");
retval = swi_add(&test_intr_event, "swi_test", NULL, &argument,
SWI_TEST_THREAD_PRIO, 0, &test_ih);
assert(retval == EINVAL);
sleep(SWI_SLEEP_TIME);
assert(argument == HANDLER_NOT_VISITED);
}
void swi_test_error_has_allready_exclusive()
{
struct intr_event *test_intr_event = NULL;
enum arg argument = HANDLER_NOT_VISITED;
void *test_ih1 = NULL;
void *test_ih2 = NULL;
int retval = 0;
printf("== Create a thread with a exclusive handler and try to add another handler.\n");
retval = swi_add(&test_intr_event, "swi_test1", swi_test_handler, &argument,
SWI_TEST_THREAD_PRIO, INTR_EXCL, &test_ih1);
assert(retval == 0);
retval = swi_add(&test_intr_event, "swi_test2", swi_test_handler, &argument,
SWI_TEST_THREAD_PRIO, 0, &test_ih2);
assert(retval == EINVAL);
sleep(SWI_SLEEP_TIME);
assert(argument == HANDLER_NOT_VISITED);
}
static void
ich_func(void *arg)
{
int *invocations;
invocations = arg;
++(*invocations);
}
static void
test_config_intrhook_establish(void)
{
int invocations;
struct intr_config_hook hook = {
.ich_func = ich_func,
.ich_arg = &invocations
};
printf("== Test config_intrhook_establish().\n");
invocations = 0;
config_intrhook_establish(&hook);
assert(invocations == 1);
}
void swi_test(void)
{
swi_test_normal_handler();
swi_test_exclusive_handler();
swi_test_error_number_of_processes_exceeded();
swi_test_error_intr_entropy_set();
swi_test_error_point_to_hardware_interrupt_thread();
swi_test_error_name_null();
swi_test_error_handler_null();
swi_test_error_has_allready_exclusive();
test_config_intrhook_establish();
}
