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pthread/realtime: export interfaces about pthread ceiling priority
pthread_mutex_setprioceiling and pthread_mutex_getprioceiling refers https://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_mutex_setprioceiling.html Signed-off-by: makejian <[email protected]>
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Sep 9, 2024
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,64 @@ | ||
| /**************************************************************************** | ||
| * libs/libc/pthread/pthread_mutex_getprioceiling.c | ||
| * | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. The | ||
| * ASF licenses this file to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance with the | ||
| * License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT | ||
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the | ||
| * License for the specific language governing permissions and limitations | ||
| * under the License. | ||
| * | ||
| ****************************************************************************/ | ||
|
|
||
| /**************************************************************************** | ||
| * Included Files | ||
| ****************************************************************************/ | ||
|
|
||
| #include <nuttx/config.h> | ||
| #include <nuttx/mutex.h> | ||
|
|
||
| #include <pthread.h> | ||
|
|
||
| /**************************************************************************** | ||
| * Public Functions | ||
| ****************************************************************************/ | ||
|
|
||
| /**************************************************************************** | ||
| * Name: pthread_mutex_getprioceiling | ||
| * | ||
| * Description: | ||
| * Return the mutex priority ceiling from the mutex. | ||
| * | ||
| * Input Parameters: | ||
| * mutex - The mutex to query | ||
| * prioceiling - Location to return the mutex priority ceiling | ||
| * | ||
| * Returned Value: | ||
| * 0, if the mutex type was successfully return in 'prioceiling', or | ||
| * EINVAL, if any NULL pointers provided. | ||
| * | ||
| * Assumptions: | ||
| * | ||
| ****************************************************************************/ | ||
|
|
||
| int pthread_mutex_getprioceiling(FAR const pthread_mutex_t *mutex, | ||
| FAR int *prioceiling) | ||
| { | ||
| #ifdef CONFIG_PRIORITY_PROTECT | ||
| # ifdef CONFIG_PTHREAD_MUTEX_TYPES | ||
| return -nxrmutex_getprioceiling(&mutex->mutex, prioceiling); | ||
| # else | ||
| return -nxmutex_getprioceiling(&mutex->mutex, prioceiling); | ||
| # endif | ||
| #else | ||
| return EINVAL; | ||
| #endif | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| /**************************************************************************** | ||
| * libs/libc/pthread/pthread_mutex_setprioceiling.c | ||
| * | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. The | ||
| * ASF licenses this file to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance with the | ||
| * License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT | ||
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the | ||
| * License for the specific language governing permissions and limitations | ||
| * under the License. | ||
| * | ||
| ****************************************************************************/ | ||
|
|
||
| /**************************************************************************** | ||
| * Included Files | ||
| ****************************************************************************/ | ||
|
|
||
| #include <nuttx/config.h> | ||
| #include <nuttx/mutex.h> | ||
|
|
||
| #include <pthread.h> | ||
|
|
||
| /**************************************************************************** | ||
| * Public Functions | ||
| ****************************************************************************/ | ||
|
|
||
| /**************************************************************************** | ||
| * Name: pthread_mutex_setprioceiling | ||
| * | ||
| * Description: | ||
| * Set the priority ceiling of a mutex. | ||
| * | ||
| * Input Parameters: | ||
| * mutex - The mutex in which to set the mutex priority ceiling. | ||
| * prioceiling - The mutex priority ceiling value to set. | ||
| * old_ceiling - Location to return the mutex ceiling priority set before. | ||
| * | ||
| * Returned Value: | ||
| * 0, indicating the mutex priority ceiling was successfully set, or | ||
| * EINVAL, indicating 'mutex' or 'old_ceiling' is NULL, or 'prioceiling' | ||
| * is out of range. | ||
| * | ||
| * Assumptions: | ||
| * | ||
| ****************************************************************************/ | ||
|
|
||
| int pthread_mutex_setprioceiling(FAR pthread_mutex_t *mutex, | ||
| int prioceiling, FAR int *old_ceiling) | ||
| { | ||
| int ret = EINVAL; | ||
|
|
||
| #ifdef CONFIG_PRIORITY_PROTECT | ||
| ret = pthread_mutex_lock(mutex); | ||
| if (ret != OK) | ||
| { | ||
| return ret; | ||
| } | ||
|
|
||
| # ifdef CONFIG_PTHREAD_MUTEX_TYPES | ||
| ret = -nxrmutex_setprioceiling(&mutex->mutex, prioceiling, old_ceiling); | ||
| # else | ||
| ret = -nxmutex_setprioceiling(&mutex->mutex, prioceiling, old_ceiling); | ||
| # endif | ||
| pthread_mutex_unlock(mutex); | ||
| #endif | ||
| return ret; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| /**************************************************************************** | ||
| * libs/libc/pthread/pthread_mutexattr_getprioceiling.c | ||
| * | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. The | ||
| * ASF licenses this file to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance with the | ||
| * License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT | ||
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the | ||
| * License for the specific language governing permissions and limitations | ||
| * under the License. | ||
| * | ||
| ****************************************************************************/ | ||
|
|
||
| /**************************************************************************** | ||
| * Included Files | ||
| ****************************************************************************/ | ||
|
|
||
| #include <nuttx/config.h> | ||
| #include <pthread.h> | ||
| #include <errno.h> | ||
|
|
||
| /**************************************************************************** | ||
| * Public Functions | ||
| ****************************************************************************/ | ||
|
|
||
| /**************************************************************************** | ||
| * Name: pthread_mutexattr_getprioceiling | ||
| * | ||
| * Description: | ||
| * Return the mutex ceiling priority from the mutex attributes. | ||
| * | ||
| * Input Parameters: | ||
| * attr - The mutex attributes to query | ||
| * prioceiling - Location to return the mutex ceiling priority | ||
| * | ||
| * Returned Value: | ||
| * 0, if the mutex type was successfully return in 'prioceiling', or | ||
| * EINVAL, if any NULL pointers provided. | ||
| * | ||
| * Assumptions: | ||
| * | ||
| ****************************************************************************/ | ||
|
|
||
| int pthread_mutexattr_getprioceiling(FAR const pthread_mutexattr_t *attr, | ||
| FAR int *prioceiling) | ||
| { | ||
| #ifdef CONFIG_PRIORITY_PROTECT | ||
| if (attr != NULL && prioceiling != NULL) | ||
| { | ||
| *prioceiling = attr->ceiling; | ||
| return OK; | ||
| } | ||
| #endif | ||
|
|
||
| return EINVAL; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| /**************************************************************************** | ||
| * libs/libc/pthread/pthread_mutexattr_setprioceiling.c | ||
| * | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. The | ||
| * ASF licenses this file to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance with the | ||
| * License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT | ||
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the | ||
| * License for the specific language governing permissions and limitations | ||
| * under the License. | ||
| * | ||
| ****************************************************************************/ | ||
|
|
||
| /**************************************************************************** | ||
| * Included Files | ||
| ****************************************************************************/ | ||
|
|
||
| #include <nuttx/config.h> | ||
| #include <pthread.h> | ||
| #include <errno.h> | ||
| #include <sched.h> | ||
|
|
||
| /**************************************************************************** | ||
| * Public Functions | ||
| ****************************************************************************/ | ||
|
|
||
| /**************************************************************************** | ||
| * Name: pthread_mutexattr_setprioceiling | ||
| * | ||
| * Description: | ||
| * Set the mutex ceiling priority in the mutex attributes. | ||
| * | ||
| * Input Parameters: | ||
| * attr - The mutex attributes in which to set the mutex type. | ||
| * prioceiling - The mutex ceiling priority value to set. | ||
| * | ||
| * Returned Value: | ||
| * 0, if the mutex type was successfully set in 'attr', or | ||
| * EINVAL, if 'attr' is NULL or 'prioceiling' out of range. | ||
| * | ||
| * Assumptions: | ||
| * | ||
| ****************************************************************************/ | ||
|
|
||
| int pthread_mutexattr_setprioceiling(FAR pthread_mutexattr_t *attr, | ||
| int prioceiling) | ||
| { | ||
| #ifdef CONFIG_PRIORITY_PROTECT | ||
| if (attr && prioceiling >= sched_get_priority_min(SCHED_FIFO) && | ||
| prioceiling <= sched_get_priority_max(SCHED_FIFO)) | ||
| { | ||
| attr->ceiling = prioceiling; | ||
| return OK; | ||
| } | ||
| #endif | ||
|
|
||
| return EINVAL; | ||
| } |
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