forked from Imagelibrary/rtems
162 lines
3.4 KiB
C
162 lines
3.4 KiB
C
/*! @file
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* @brief Check how rtems_bdbuf_sync() works.
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*
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* Test sequence:
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* -# Call rtems_bdbuf_read(#N) in thread #1.
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* -# Call rtems_bdbuf_sync(#N) in thread #1.
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* -# After a while disk driver gets write request for block #N.
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* -# Call rtems_bdbuf_read(#N) from thread #2 (before reply from the driver).
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* Thread #2 blocks on this call.
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* -# Notify bdbuf library about write complete event.
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* -# Check that rtems_bdbuf_sync(#N) in thread #1 unlocked after this.
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* (in fact a thread to unlock might be any).
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* -# Check that thread #2 unblocks and get buffer #N.
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* -# Release buffer in thread #2.
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* .
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*
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* Copyright (C) 2010 OKTET Labs, St.-Petersburg, Russia
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* Author: Oleg Kravtsov <Oleg.Kravtsov@oktetlabs.ru>
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*
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* $Id$
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*/
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#include <bdbuf_tests.h>
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static rtems_task bdbuf_test4_2_thread1(rtems_task_argument arg);
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static rtems_task bdbuf_test4_2_thread2(rtems_task_argument arg);
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/* Block number used in the test */
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#define TEST_BLK_NUM_N 114
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void
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bdbuf_test4_2_main()
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{
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bdbuf_test_msg msg;
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TEST_START("Test 4.2");
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START_THREAD(1, bdbuf_test4_2_thread1);
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START_THREAD(2, bdbuf_test4_2_thread2);
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/*
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* Step 1:
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* Call rtems_bdbuf_read(#N) in thread #1.
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* Wait for read request in disk driver.
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*/
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WAIT_DRV_MSG(&msg);
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SEND_DRV_MSG(0, 0, RTEMS_SUCCESSFUL, 0);
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/*
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* Step 2, 3:
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* Call rtems_bdbuf_sync(#N) in thread #1.
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* As the result buffer is asked to be flashed onto the disk.
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*/
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WAIT_DRV_MSG_WR(&msg);
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TEST_CHECK_RESULT("3");
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/*
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* Step 4:
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* Call rtems_bdbuf_read(#N) in thread #2
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*/
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CONTINUE_THREAD(2);
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/* Make sure that thread #2 blocks */
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CHECK_THREAD_BLOCKED(2);
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/*
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* Step 5:
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* Notify bdbuf library about write complete event.
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*/
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SEND_DRV_MSG(0, 0, RTEMS_SUCCESSFUL, 0);
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/* Check that rtems_bdbuf_sync() is unlocked in thread #1 */
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WAIT_THREAD_SYNC(1);
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/*
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* Step 7:
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* Check that rtems_bdbuf_read(#N) call is unlocked in thread #2.
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*/
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WAIT_THREAD_SYNC(2);
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TEST_CHECK_RESULT("7");
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/*
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* Step 8:
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* Release buffer in thread #2
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*/
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CONTINUE_THREAD(2);
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/* Exit from thread #1 */
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CONTINUE_THREAD(1);
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TEST_END();
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}
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static rtems_task
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bdbuf_test4_2_thread1(rtems_task_argument arg)
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{
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rtems_status_code rc;
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rtems_bdbuf_buffer *bd = NULL;
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/*
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* Step 1:
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* Call rtems_bdbuf_read(#N) in thread #1;
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*/
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rc = rtems_bdbuf_read(test_dev, TEST_BLK_NUM_N, &bd);
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if (rc != RTEMS_SUCCESSFUL)
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{
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TEST_FAILED();
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}
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/*
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* Step 2:
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* Call rtems_bdbuf_sync(#N)
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*/
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rc = rtems_bdbuf_sync(bd);
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if (rc != RTEMS_SUCCESSFUL)
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{
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TEST_FAILED();
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}
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CONTINUE_MAIN(1);
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THREAD_END();
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}
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static rtems_task
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bdbuf_test4_2_thread2(rtems_task_argument arg)
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{
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rtems_status_code rc;
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rtems_bdbuf_buffer *bd = NULL;
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WAIT_MAIN_SYNC(2);
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/*
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* Step 4:
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* In thread #2 call read(#N).
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* We will block on this call.
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*/
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rc = rtems_bdbuf_read(test_dev, TEST_BLK_NUM_N, &bd);
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if (rc != RTEMS_SUCCESSFUL)
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{
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TEST_FAILED();
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}
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CONTINUE_MAIN(2);
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/*
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* Release buffer.
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*/
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rc = rtems_bdbuf_release(bd);
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if (rc != RTEMS_SUCCESSFUL)
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{
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TEST_FAILED();
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}
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THREAD_END();
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}
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