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/*! @file
* @brief Check the behaviour of rtems_bdbuf_read() function
* with different reports from disk device driver.
*
* Test sequence:
* -# Call rtems_bdbuf_read() function and return 0 from disk device
* driver ioctl() function, and the result of asynchronous read
* complete notification is successful.
* -# Check that rtems_bdbuf_read() returns RTEMS_SUCCESSFUL and
* provides buffer descriptor.
* -# Call rtems_bdbuf_read() function and return -1 from disk device
* driver ioctl() function (there will be no asynchronous read
* complete notification).
* -# Check that rtems_bdbuf_read() returns RTEMS_IO_ERROR.
* -# Call rtems_bdbuf_read() function and return 0 from disk device
* driver ioctl() function, but the result of asynchronous read
* complete notification is faulty (with some erroneous status).
* -# Check that rtems_bdbuf_read() returns that status and does not
* return buffer descriptor.
*
* Copyright (C) 2010 OKTET Labs, St.-Petersburg, Russia
* Author: Oleg Kravtsov <Oleg.Kravtsov@oktetlabs.ru>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <bdbuf_tests.h>
static rtems_task bdbuf_test1_1_thread1(rtems_task_argument arg);
#define TEST_BLK_NUM 10
void
bdbuf_test1_1_main()
{
bdbuf_test_msg msg;
TEST_START("Test 1.1");
/*
* Create working thread that will call rtems_bdbuf_read() function.
*/
START_THREAD(1, bdbuf_test1_1_thread1);
/*
* Step 1:
* Check that rtems_bdbuf_read() returns RTEMS_SUCCESSFUL
* when device driver returns 0 from ioctl() call and
* return RTEMS_SUCCESSFUL status in asynchronous
* callback notification.
*/
WAIT_DRV_MSG(&msg);
SEND_DRV_MSG(0, 0, RTEMS_SUCCESSFUL, 0);
WAIT_THREAD_SYNC(1);
TEST_CHECK_RESULT("2");
CONTINUE_THREAD(1);
/*
* Step 3:
* Check that rtems_bdbuf_read() returns RTEMS_IO_ERROR
* return code, when device driver returns -1 from ioctl() call.
*/
WAIT_DRV_MSG(&msg);
SEND_DRV_MSG(-1, EFAULT, RTEMS_SUCCESSFUL, 0);
WAIT_THREAD_SYNC(1);
TEST_CHECK_RESULT("4");
CONTINUE_THREAD(1);
/*
* Step 5:
* Check that rtems_bdbuf_read() returns status obtained
* from device driver via asynchonous notification.
* On this step device driver returns 0 from ioctl() call,
* but notification callback is called with RTEMS_IO_ERROR status.
*/
WAIT_DRV_MSG(&msg);
SEND_DRV_MSG(0, 0, RTEMS_IO_ERROR, EFAULT);
WAIT_THREAD_SYNC(1);
TEST_CHECK_RESULT("6");
CONTINUE_THREAD(1);
TEST_END();
}
static rtems_task
bdbuf_test1_1_thread1(rtems_task_argument arg)
{
rtems_status_code rc;
rtems_bdbuf_buffer *bd1 = NULL;
rtems_bdbuf_buffer *bd2 = NULL;
/*
* Step 1-2:
* Successful read operation.
*/
rc = rtems_bdbuf_read(test_dd, 0, &bd1);
if (rc != RTEMS_SUCCESSFUL)
{
TEST_FAILED();
}
rc = rtems_bdbuf_release(bd1);
if (rc != RTEMS_SUCCESSFUL)
{
TEST_FAILED();
}
CONTINUE_MAIN(1);
/*
* Step 3-4:
* Read operation fails with RTEMS_IO_ERROR code.
* The function shall not update user pointer.
*/
rc = rtems_bdbuf_read(test_dd, TEST_BLK_NUM, &bd2);
if (rc != RTEMS_IO_ERROR || bd2 != NULL)
{
TEST_FAILED();
}
CONTINUE_MAIN(1);
/*
* Step 5-6:
* Read operation fails with RTEMS_IO_ERROR code.
* The function shall not update user pointer.
*/
rc = rtems_bdbuf_read(test_dd, TEST_BLK_NUM, &bd2);
if (rc != RTEMS_IO_ERROR || bd2 != NULL)
{
TEST_FAILED();
}
CONTINUE_MAIN(1);
THREAD_END();
}
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