/**
* @file
*
* @ingroup test_bdbuf
*
* @brief Bdbuf test for purge.
*/
/*
* Copyright (c) 2010, 2018 embedded brains GmbH.
*
* embedded brains GmbH
* Dornierstr. 4
* D-82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "tmacros.h"
#include <sys/stat.h>
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include <rtems.h>
#include <rtems/bdbuf.h>
#include <rtems/test-info.h>
const char rtems_test_name[] = "BLOCK 10";
#define ASSERT_SC(sc) assert((sc) == RTEMS_SUCCESSFUL)
#define PRIORITY_HIGH 1
#define PRIORITY_INIT 2
#define PRIORITY_MID 3
#define PRIORITY_SWAPOUT 4
#define PRIORITY_LOW 5
#define PRIORITY_IDLE 6
#define BLOCK_SIZE 1
#define BLOCK_COUNT 1
#define DISK_PATH "/disk"
typedef rtems_bdbuf_buffer *(*access_func)(char task);
typedef void (*release_func)(char task, rtems_bdbuf_buffer *bd);
static rtems_disk_device *dd;
static rtems_id task_id_init;
static rtems_id task_id_purger;
static rtems_id task_id_waiter;
static void set_task_prio(rtems_id task, rtems_task_priority prio)
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
rtems_task_priority cur = 0;
sc = rtems_task_set_priority(task, prio, &cur);
ASSERT_SC(sc);
}
static void suspend(rtems_id task)
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
sc = rtems_task_suspend(task);
ASSERT_SC(sc);
}
static void resume(rtems_id task)
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
sc = rtems_task_resume(task);
ASSERT_SC(sc);
}
static int disk_ioctl(rtems_disk_device *dd, uint32_t req, void *arg)
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
if (req == RTEMS_BLKIO_REQUEST) {
rtems_blkdev_request *r = arg;
if (r->req == RTEMS_BLKDEV_REQ_WRITE) {
set_task_prio(RTEMS_SELF, PRIORITY_IDLE);
set_task_prio(RTEMS_SELF, PRIORITY_SWAPOUT);
}
rtems_blkdev_request_done(r, sc);
return 0;
} else {
return rtems_blkdev_ioctl(dd, req, arg);
}
}
static void disk_register(
uint32_t block_size,
rtems_blkdev_bnum block_count,
rtems_disk_device **dd
)
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
int fd;
int rv;
sc = rtems_blkdev_create(
DISK_PATH,
block_size,
block_count,
disk_ioctl,
NULL
);
ASSERT_SC(sc);
fd = open(DISK_PATH, O_RDWR);
rtems_test_assert(fd >= 0);
rv = rtems_disk_fd_get_disk_device(fd, dd);
rtems_test_assert(rv == 0);
rv = close(fd);
rtems_test_assert(rv == 0);
}
static rtems_bdbuf_buffer *do_get(char task)
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
rtems_bdbuf_buffer *bd = NULL;
printf("%c: try get\n", task);
sc = rtems_bdbuf_get(dd, 0, &bd);
ASSERT_SC(sc);
printf("%c: get\n", task);
return bd;
}
static rtems_bdbuf_buffer *do_get_mod(char task)
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
rtems_bdbuf_buffer *bd = NULL;
printf("%c: try get modified\n", task);
sc = rtems_bdbuf_get(dd, 0, &bd);
ASSERT_SC(sc);
sc = rtems_bdbuf_release_modified(bd);
ASSERT_SC(sc);
sc = rtems_bdbuf_get(dd, 0, &bd);
ASSERT_SC(sc);
printf("%c: get modified\n", task);
return bd;
}
static rtems_bdbuf_buffer *do_read(char task)
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
rtems_bdbuf_buffer *bd = NULL;
printf("%c: try read\n", task);
sc = rtems_bdbuf_read(dd, 0, &bd);
ASSERT_SC(sc);
printf("%c: read\n", task);
return bd;
}
static void do_rel(char task, rtems_bdbuf_buffer *bd)
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
printf("%c: release\n", task);
sc = rtems_bdbuf_release(bd);
ASSERT_SC(sc);
printf("%c: release done\n", task);
}
static void do_rel_mod(char task, rtems_bdbuf_buffer *bd)
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
printf("%c: release modified\n", task);
sc = rtems_bdbuf_release_modified(bd);
ASSERT_SC(sc);
printf("%c: release modified done\n", task);
}
static void do_sync(char task, rtems_bdbuf_buffer *bd)
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
printf("%c: sync\n", task);
sc = rtems_bdbuf_sync(bd);
ASSERT_SC(sc);
printf("%c: sync done\n", task);
}
static void purge(char task)
{
printf("%c: purge\n", task);
rtems_bdbuf_purge_dev(dd);
}
static void task_purger(rtems_task_argument arg)
{
while (true) {
suspend(RTEMS_SELF);
set_task_prio(RTEMS_SELF, PRIORITY_HIGH);
purge('P');
}
rtems_task_exit();
}
static void activate_purger(rtems_task_priority prio)
{
set_task_prio(task_id_purger, prio);
resume(task_id_purger);
}
static void task_waiter(rtems_task_argument arg)
{
while (true) {
rtems_bdbuf_buffer *bd = NULL;
suspend(RTEMS_SELF);
bd = do_get('W');
do_rel('W', bd);
}
rtems_task_exit();
}
static void create_waiter(void)
{
resume(task_id_waiter);
set_task_prio(task_id_waiter, PRIORITY_IDLE);
}
static void restore_waiter(void)
{
set_task_prio(task_id_waiter, PRIORITY_HIGH);
}
static void check_access(access_func ac, release_func rel, bool waiter)
{
rtems_bdbuf_buffer *bd = (*ac)('I');
if (waiter) {
create_waiter();
}
purge('I');
(*rel)('I', bd);
if (waiter) {
restore_waiter();
}
}
static void check_intermediate(release_func rel, bool waiter)
{
rtems_bdbuf_buffer *bd = do_read('I');
if (waiter) {
create_waiter();
}
(*rel)('I', bd);
purge('I');
if (waiter) {
restore_waiter();
}
}
static void check_transfer(rtems_task_priority prio, bool waiter)
{
rtems_bdbuf_buffer *bd = do_read('I');
if (waiter) {
create_waiter();
}
activate_purger(prio);
do_sync('I', bd);
if (waiter) {
restore_waiter();
}
}
static const bool waiter_table [] = {
true,
false
};
static const access_func access_table [] = {
do_get,
do_get_mod,
do_read
};
static const release_func release_table [] = {
do_rel,
do_rel_mod,
do_sync
};
static const rtems_task_priority purger_table [] = {
PRIORITY_MID,
PRIORITY_LOW
};
#define ARRAY_COUNT(array) (sizeof(array) / sizeof(array [0]))
#define WAITER_COUNT ARRAY_COUNT(waiter_table)
#define ACCESS_COUNT ARRAY_COUNT(access_table)
#define RELEASE_COUNT ARRAY_COUNT(release_table)
#define PURGER_COUNT ARRAY_COUNT(purger_table)
static const char *waiter_assoc_table [WAITER_COUNT] = {
"with waiter",
"without waiter"
};
static const char *access_assoc_table [ACCESS_COUNT] = {
"get",
"access modified",
"read"
};
static const char *release_assoc_table [RELEASE_COUNT] = {
"release",
"release modified",
"sync"
};
static const char *purger_assoc_table [PURGER_COUNT] = {
"sync",
"transfer"
};
static rtems_task Init(rtems_task_argument argument)
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
size_t i_w = 0;
size_t i_ac = 0;
size_t i_rel = 0;
size_t i_p = 0;
TEST_BEGIN();
task_id_init = rtems_task_self();
disk_register(BLOCK_SIZE, BLOCK_COUNT, &dd);
sc = rtems_task_create(
rtems_build_name('P', 'U', 'R', 'G'),
PRIORITY_HIGH,
0,
RTEMS_DEFAULT_MODES,
RTEMS_DEFAULT_ATTRIBUTES,
&task_id_purger
);
ASSERT_SC(sc);
sc = rtems_task_start(task_id_purger, task_purger, 0);
ASSERT_SC(sc);
set_task_prio(task_id_purger, PRIORITY_LOW);
sc = rtems_task_create(
rtems_build_name('W', 'A', 'I', 'T'),
PRIORITY_HIGH,
0,
RTEMS_DEFAULT_MODES,
RTEMS_DEFAULT_ATTRIBUTES,
&task_id_waiter
);
ASSERT_SC(sc);
sc = rtems_task_start(task_id_waiter, task_waiter, 0);
ASSERT_SC(sc);
for (i_ac = 0; i_ac < ACCESS_COUNT; ++i_ac) {
for (i_rel = 0; i_rel < RELEASE_COUNT; ++i_rel) {
for (i_w = 0; i_w < WAITER_COUNT; ++i_w) {
printf("test case [access]: %s and %s %s\n", access_assoc_table [i_ac], release_assoc_table [i_rel], waiter_assoc_table [i_w]);
check_access(access_table [i_ac], release_table [i_rel], waiter_table [i_w]);
}
}
}
for (i_rel = 0; i_rel < RELEASE_COUNT; ++i_rel) {
for (i_w = 0; i_w < WAITER_COUNT; ++i_w) {
printf("test case [intermediate]: %s %s\n", release_assoc_table [i_rel], waiter_assoc_table [i_w]);
check_intermediate(release_table [i_rel], waiter_table [i_w]);
}
}
for (i_p = 0; i_p < PURGER_COUNT; ++i_p) {
for (i_w = 0; i_w < WAITER_COUNT; ++i_w) {
printf("test case [transfer]: %s %s\n", purger_assoc_table [i_p], waiter_assoc_table [i_w]);
check_transfer(purger_table [i_p], waiter_table [i_w]);
}
}
TEST_END();
exit(0);
}
#define CONFIGURE_INIT
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_LIBBLOCK
#define CONFIGURE_MAXIMUM_FILE_DESCRIPTORS 4
#define CONFIGURE_MAXIMUM_TASKS 3
#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
#define CONFIGURE_INIT_TASK_PRIORITY PRIORITY_INIT
#define CONFIGURE_INIT_TASK_ATTRIBUTES RTEMS_DEFAULT_ATTRIBUTES
#define CONFIGURE_INIT_TASK_INITIAL_MODES RTEMS_DEFAULT_MODES
#define CONFIGURE_SWAPOUT_TASK_PRIORITY PRIORITY_SWAPOUT
#define CONFIGURE_BDBUF_BUFFER_MIN_SIZE BLOCK_SIZE
#define CONFIGURE_BDBUF_BUFFER_MAX_SIZE BLOCK_SIZE
#define CONFIGURE_BDBUF_CACHE_MEMORY_SIZE (BLOCK_SIZE * BLOCK_COUNT)
#include <rtems/confdefs.h>