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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-12-06 09:57:01 +0100 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-12-07 14:22:01 +0100 |
commit | 7ee64376ef8a1189cb03174fa902a335d1f96919 (patch) | |
tree | 665c9b0d8c2512b816efc7bd50ae6678c7d42f7d | |
parent | Simplify _CPU_Counter_difference() (diff) | |
download | rtems-7ee64376ef8a1189cb03174fa902a335d1f96919.tar.bz2 |
rtems: Add rtems_scheduler_get_maximum_priority()
Update #3636.
-rw-r--r-- | cpukit/Makefile.am | 1 | ||||
-rw-r--r-- | cpukit/include/rtems/rtems/tasks.h | 15 | ||||
-rw-r--r-- | cpukit/rtems/src/schedulergetmaxprio.c | 53 | ||||
-rw-r--r-- | testsuites/sptests/spscheduler01/init.c | 26 |
4 files changed, 94 insertions, 1 deletions
diff --git a/cpukit/Makefile.am b/cpukit/Makefile.am index 188001aed7..3b917f019d 100644 --- a/cpukit/Makefile.am +++ b/cpukit/Makefile.am @@ -755,6 +755,7 @@ librtemscpu_a_SOURCES += rtems/src/rtemsobjectidgetnode.c librtemscpu_a_SOURCES += rtems/src/rtemsobjectsetname.c librtemscpu_a_SOURCES += rtems/src/rtemstimer.c librtemscpu_a_SOURCES += rtems/src/scheduleraddprocessor.c +librtemscpu_a_SOURCES += rtems/src/schedulergetmaxprio.c librtemscpu_a_SOURCES += rtems/src/schedulergetprocessorset.c librtemscpu_a_SOURCES += rtems/src/scheduleridentbyprocessor.c librtemscpu_a_SOURCES += rtems/src/scheduleridentbyprocessorset.c diff --git a/cpukit/include/rtems/rtems/tasks.h b/cpukit/include/rtems/rtems/tasks.h index b75ec3ed50..aa1f5a417c 100644 --- a/cpukit/include/rtems/rtems/tasks.h +++ b/cpukit/include/rtems/rtems/tasks.h @@ -654,6 +654,21 @@ rtems_status_code rtems_scheduler_remove_processor( uint32_t cpu_index ); +/** + * @brief Gets the maximum task priority of the specified scheduler instance. + * + * @param[in] scheduler_id Identifier of the scheduler instance. + * @param[out] priority Pointer to a task priority value. + * + * @retval RTEMS_SUCCESSFUL Successful operation. + * @retval RTEMS_INVALID_ADDRESS The @a priority parameter is @c NULL. + * @retval RTEMS_INVALID_ID Invalid scheduler instance identifier. + */ +rtems_status_code rtems_scheduler_get_maximum_priority( + rtems_id scheduler_id, + rtems_task_priority *priority +); + /**@}*/ #ifdef __cplusplus diff --git a/cpukit/rtems/src/schedulergetmaxprio.c b/cpukit/rtems/src/schedulergetmaxprio.c new file mode 100644 index 0000000000..a1eef31761 --- /dev/null +++ b/cpukit/rtems/src/schedulergetmaxprio.c @@ -0,0 +1,53 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (C) 2018 embedded brains GmbH + * + * 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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. + */ + +#if HAVE_CONFIG_H +#include "config.h" +#endif + +#include <rtems/rtems/tasks.h> +#include <rtems/score/schedulerimpl.h> + +rtems_status_code rtems_scheduler_get_maximum_priority( + rtems_id scheduler_id, + rtems_task_priority *priority +) +{ + uint32_t index; + + if ( priority == NULL ) { + return RTEMS_INVALID_ADDRESS; + } + + index = _Scheduler_Get_index_by_id( scheduler_id ); + if ( index >= _Scheduler_Count ) { + return RTEMS_INVALID_ID; + } + + *priority = _Scheduler_Table[ index ].maximum_priority; + return RTEMS_SUCCESSFUL; +} diff --git a/testsuites/sptests/spscheduler01/init.c b/testsuites/sptests/spscheduler01/init.c index fc03d0348d..04d65fcdd0 100644 --- a/testsuites/sptests/spscheduler01/init.c +++ b/testsuites/sptests/spscheduler01/init.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2014, 2017 embedded brains GmbH. All rights reserved. + * Copyright (c) 2014, 2018 embedded brains GmbH. All rights reserved. * * embedded brains GmbH * Dornierstr. 4 @@ -474,6 +474,29 @@ static void test_scheduler_ident(void) rtems_test_assert(scheduler_id == expected_id); } +static void test_scheduler_get_max_prio(void) +{ + rtems_status_code sc; + rtems_task_priority priority; + rtems_id scheduler_id; + + priority = 0; + sc = rtems_scheduler_get_maximum_priority(invalid_id, &priority); + rtems_test_assert(sc == RTEMS_INVALID_ID); + rtems_test_assert(priority == 0); + + sc = rtems_task_get_scheduler(RTEMS_SELF, &scheduler_id); + rtems_test_assert(sc == RTEMS_SUCCESSFUL); + + sc = rtems_scheduler_get_maximum_priority(scheduler_id, NULL); + rtems_test_assert(sc == RTEMS_INVALID_ADDRESS); + + priority = 0; + sc = rtems_scheduler_get_maximum_priority(scheduler_id, &priority); + rtems_test_assert(sc == RTEMS_SUCCESSFUL); + rtems_test_assert(priority == 255); +} + static void test_scheduler_get_processors(void) { rtems_status_code sc; @@ -601,6 +624,7 @@ static void Init(rtems_task_argument arg) test_task_get_set_affinity(); test_task_get_set_scheduler(); test_scheduler_ident(); + test_scheduler_get_max_prio(); test_scheduler_get_processors(); test_scheduler_add_remove_processors(); test_task_get_priority(); |