diff options
Diffstat (limited to 'nuttx/sched/prctl.c')
| -rw-r--r-- | nuttx/sched/prctl.c | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/nuttx/sched/prctl.c b/nuttx/sched/prctl.c deleted file mode 100644 index 3db83d3d7..000000000 --- a/nuttx/sched/prctl.c +++ /dev/null @@ -1,173 +0,0 @@ -/************************************************************************ - * sched/prctl.c - * - * Copyright (C) 2012 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * 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 <nuttx/config.h> - -#include <sys/prctl.h> -#include <stdarg.h> -#include <string.h> -#include <errno.h> -#include <debug.h> - -#include <nuttx/sched.h> - -#include "os_internal.h" - -/************************************************************************ - * Private Functions - ************************************************************************/ - -/************************************************************************ - * Public Functions - ************************************************************************/ - -/**************************************************************************** - * Name: prctl - * - * Description: - * prctl() is called with a first argument describing what to do (with - * values PR_* defined above) and with additional arguments depending on - * the specific command. - * - * Returned Value: - * The returned value may depend on the specific commnand. For PR_SET_NAME - * and PR_GET_NAME, the returned value of 0 indicates successful operation. - * On any failure, -1 is retruend and the errno value is set appropriately. - * - * EINVAL The value of 'option' is not recognized. - * EFAULT optional arg1 is not a valid address. - * ESRCH No task/thread can be found corresponding to that specified - * by optional arg1. - * - ****************************************************************************/ - -int prctl(int option, ...) -{ - va_list ap; - int err; - - va_start(ap, option); - switch (option) - { - case PR_SET_NAME: - case PR_GET_NAME: -#if CONFIG_TASK_NAME_SIZE > 0 - { - /* Get the prctl arguments */ - - FAR char *name = va_arg(ap, FAR char *); - int pid = va_arg(ap, int); - FAR _TCB *tcb; - - /* Get the TCB associated with the PID (handling the special case of - * pid==0 meaning "this thread") - */ - - if (!pid) - { - tcb = (FAR _TCB *)g_readytorun.head; - } - else - { - tcb = sched_gettcb(pid); - } - - /* An invalid pid will be indicated by a NULL TCB returned from - * sched_gettcb() - */ - - if (!tcb) - { - sdbg("Pid does not correspond to a task: %d\n", pid); - err = ESRCH; - goto errout; - } - - /* A pointer to the task name storage must also be provided */ - - if (!name) - { - sdbg("No name provide\n"); - err = EFAULT; - goto errout; - } - - /* Now get or set the task name */ - - if (option == PR_SET_NAME) - { - /* tcb->name may not be null-terminated */ - - strncpy(tcb->name, name, CONFIG_TASK_NAME_SIZE); - } - else - { - /* The returned value will be null-terminated, truncating if necessary */ - - strncpy(name, tcb->name, CONFIG_TASK_NAME_SIZE-1); - name[CONFIG_TASK_NAME_SIZE-1] = '\0'; - } - } - break; -#else - sdbg("Option not enabled: %d\n", option); - err = ENOSYS; - goto errout; -#endif - - default: - sdbg("Unrecognized option: %d\n", option); - err = EINVAL; - goto errout; - } - - /* Not reachable unless CONFIG_TASK_NAME_SIZE is > 0. NOTE: This might - * change if additional commands are supported. - */ - -#if CONFIG_TASK_NAME_SIZE > 0 - va_end(ap); - return OK; -#endif - -errout: - va_end(ap); - set_errno(err); - return ERROR; -} |