forked from Imagelibrary/rtems
4edf348c33
Elevate the priority of the creating task to the ceiling priority in case a semaphore is created as initially locked.
152 lines
3.6 KiB
C
152 lines
3.6 KiB
C
/*
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* COPYRIGHT (c) 1989-2012.
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* On-Line Applications Research Corporation (OAR).
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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.org/license/LICENSE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <tmacros.h>
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#include <unistd.h>
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const char rtems_test_name[] = "SP 65";
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/* forward declarations to avoid warnings */
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rtems_task Init(rtems_task_argument argument);
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rtems_task Task_1(rtems_task_argument arg);
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#if defined(INHERIT_CEILING)
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#define TEST_NAME "66"
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#define TASK_PRIORITY 2
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#else
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#define TEST_NAME "65"
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#define TASK_PRIORITY 1
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#endif
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static void assert_priority(rtems_task_priority expected)
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{
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rtems_status_code sc;
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rtems_task_priority prio;
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sc = rtems_task_set_priority(RTEMS_SELF, RTEMS_CURRENT_PRIORITY, &prio);
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rtems_test_assert(sc == RTEMS_SUCCESSFUL);
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rtems_test_assert(prio == expected);
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}
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rtems_task Init(
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rtems_task_argument ignored
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)
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{
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int status;
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rtems_id Mutex_id, Task_id;
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TEST_BEGIN();
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/*
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* Verify that an initially locked priority ceiling mutex elevates the
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* priority of the creating task.
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*/
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status = rtems_semaphore_create(
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rtems_build_name( 's','e','m','1' ),
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0,
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RTEMS_BINARY_SEMAPHORE | RTEMS_PRIORITY | RTEMS_PRIORITY_CEILING,
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1,
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&Mutex_id
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);
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rtems_test_assert(status == RTEMS_SUCCESSFUL);
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assert_priority(1);
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status = rtems_semaphore_release(Mutex_id);
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rtems_test_assert(status == RTEMS_SUCCESSFUL);
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assert_priority(TASK_PRIORITY);
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status = rtems_semaphore_delete(Mutex_id);
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rtems_test_assert(status == RTEMS_SUCCESSFUL);
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/*
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* Create binary semaphore (a.k.a. Mutex) with Priority Ceiling
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* attribute.
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*/
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puts( "Creating semaphore" );
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status = rtems_semaphore_create(
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rtems_build_name( 's','e','m','1' ),
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1,
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RTEMS_BINARY_SEMAPHORE | RTEMS_PRIORITY | RTEMS_PRIORITY_CEILING,
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1,
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&Mutex_id
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);
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directive_failed( status, "rtems_semaphore_create" );
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puts( "Calling rtems_semaphore_obtain" );
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status = rtems_semaphore_obtain( Mutex_id, RTEMS_DEFAULT_OPTIONS, 0 );
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directive_failed( status, "rtems_semaphore_obtain" );
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puts( "Calling rtems_task_create" );
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status = rtems_task_create( rtems_build_name( 'T', 'A', 'S', '1' ),
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TASK_PRIORITY,
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RTEMS_MINIMUM_STACK_SIZE,
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RTEMS_DEFAULT_MODES,
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RTEMS_DEFAULT_ATTRIBUTES,
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&Task_id
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);
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directive_failed( status, "rtems_task_create" );
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puts( "Calling rtems_task_start" );
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status = rtems_task_start( Task_id, Task_1, (rtems_task_argument)&Mutex_id );
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directive_failed( status, "rtems_task_start" );
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sleep(1);
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puts( "Calling semaphore release" );
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status = rtems_semaphore_release( Mutex_id );
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directive_failed( status, "rtems_semaphore_release" );
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TEST_END();
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rtems_test_exit(0);
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}
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rtems_task Task_1(
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rtems_task_argument arg
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)
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{
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int status_in_task;
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rtems_id *Mutex_id = (rtems_id *)arg;
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puts( "Init Task_1: Obtaining semaphore" );
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status_in_task = rtems_semaphore_obtain(
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*Mutex_id,
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RTEMS_DEFAULT_OPTIONS,
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0
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);
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directive_failed( status_in_task, "Task_1 rtems_semaphore_obtain" );
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return;
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}
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/* configuration information */
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#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
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#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
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#define CONFIGURE_MAXIMUM_TASKS 2
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#define CONFIGURE_MAXIMUM_SEMAPHORES 1
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#define CONFIGURE_INIT_TASK_PRIORITY TASK_PRIORITY
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#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
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#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
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#define CONFIGURE_INIT
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#include <rtems/confdefs.h>
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/* global variables */
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