diff --git a/libc/pthread/pthread_mutexattr_getrobust.c b/libc/pthread/pthread_mutexattr_getrobust.c new file mode 100644 index 00000000000..8d5e4c10607 --- /dev/null +++ b/libc/pthread/pthread_mutexattr_getrobust.c @@ -0,0 +1,82 @@ +/**************************************************************************** + * libc/pthread/pthread_mutexattr_getrobust.c + * + * Copyright (C) 2017 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * 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. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include +#include +#include + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Function: pthread_mutexattr_getrobust + * + * Description: + * Return the mutex robustneess from the mutex attributes. + * + * Parameters: + * attr - The mutex attributes to query + * robust - Location to return the robustness indication + * + * Return Value: + * 0, if the robustness was successfully return in 'robust', or + * EINVAL, if any NULL pointers provided. + * + * Assumptions: + * + ****************************************************************************/ + +int pthread_mutexattr_getrobust(FAR const pthread_mutexattr_t *attr, + FAR int *robust) +{ + if (attr != NULL && robust != NULL) + { +#if defined(CONFIG_PTHREAD_MUTEX_UNSAFE) + *robust = PTHREAD_MUTEX_STALLED; +#elif defined(CONFIG_PTHREAD_MUTEX_BOTH) + *robust = attr->robust; +#else /* Default: CONFIG_PTHREAD_MUTEX_ROBUST */ + *robust = PTHREAD_MUTEX_ROBUST; +#endif + return 0; + } + + return EINVAL; +} diff --git a/libc/pthread/pthread_mutexattr_setrobust.c b/libc/pthread/pthread_mutexattr_setrobust.c new file mode 100644 index 00000000000..42930fa0b73 --- /dev/null +++ b/libc/pthread/pthread_mutexattr_setrobust.c @@ -0,0 +1,96 @@ +/**************************************************************************** + * libc/pthread/pthread_mutexattr_setrobust.c + * + * Copyright (C) 201t Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * 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. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include +#include +#include + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Function: pthread_mutexattr_setrobust + * + * Description: + * Set the mutex robustness in the mutex attributes. + * + * Parameters: + * attr - The mutex attributes in which to set the mutex type. + * robust - The mutex type value to set. + * + * Return Value: + * 0, if the mutex robustness was successfully set in 'attr', or + * EINVAL, if 'attr' is NULL or 'robust' unrecognized. + * + * Assumptions: + * + ****************************************************************************/ + +int pthread_mutexattr_setrobust(pthread_mutexattr_t *attr, int robust) +{ +#if defined(CONFIG_PTHREAD_MUTEX_UNSAFE) + + if (attr != NULL && robust == PTHREAD_MUTEX_STALLED) + { + return OK; + } + + return EINVAL; + +#elif defined(CONFIG_PTHREAD_MUTEX_BOTH) + + if (attr != NULL && (robust == PTHREAD_MUTEX_STALLED || robust == _PTHREAD_MFLAGS_ROBUST)) + { + attr->robust = robust; + return OK; + } + + return EINVAL; + +#else /* Default: CONFIG_PTHREAD_MUTEX_ROBUST */ + + if (attr != NULL && robust == _PTHREAD_MFLAGS_ROBUST) + { + return OK; + } + + return EINVAL; +#endif +}