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Diffstat (limited to 'nuttx/sched/sched_releasetcb.c')
| -rw-r--r-- | nuttx/sched/sched_releasetcb.c | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/nuttx/sched/sched_releasetcb.c b/nuttx/sched/sched_releasetcb.c deleted file mode 100644 index 02f7170c2..000000000 --- a/nuttx/sched/sched_releasetcb.c +++ /dev/null @@ -1,184 +0,0 @@ -/************************************************************************ - * sched/sched_releasetcb.c - * - * Copyright (C) 2007, 2009, 2012-2013 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/types.h> -#include <sched.h> -#include <errno.h> -#include <nuttx/arch.h> - -#include "os_internal.h" -#include "group_internal.h" -#include "timer_internal.h" - -/************************************************************************ - * Private Functions - ************************************************************************/ - -/************************************************************************ - * Name: sched_releasepid - * - * Description: When a task is destroyed, this function must - * be called to make its process ID available for re-use. - ************************************************************************/ - -static void sched_releasepid(pid_t pid) -{ - int hash_ndx = PIDHASH(pid); - - /* Make any pid associated with this hash available. Note: - * no special precautions need be taken here because the - * following action is atomic - */ - - g_pidhash[hash_ndx].tcb = NULL; - g_pidhash[hash_ndx].pid = INVALID_PROCESS_ID; -} - -/************************************************************************ - * Public Functions - ************************************************************************/ - -/************************************************************************ - * Name: sched_releasetcb - * - * Description: - * Free all resources contained in a TCB - * - * Parameters: - * None - * - * Return Value: - * OK on success; ERROR on failure - * - * Assumptions: - * Interrupts are disabled. - * - ************************************************************************/ - -int sched_releasetcb(FAR _TCB *tcb) -{ - int ret = OK; - int i; - - if (tcb) - { - /* Relase any timers that the task might hold. We do this - * before release the PID because it may still be trying to - * deliver signals (although interrupts are should be - * disabled here). - */ - -#ifndef CONFIG_DISABLE_POSIX_TIMERS -#ifdef CONFIG_HAVE_WEAKFUNCTIONS - if (timer_deleteall != NULL) -#endif - { - timer_deleteall(tcb->pid); - } -#endif - - /* Release the task's process ID if one was assigned. PID - * zero is reserved for the IDLE task. The TCB of the IDLE - * task is never release so a value of zero simply means that - * the process ID was never allocated to this TCB. - */ - - if (tcb->pid) - { - sched_releasepid(tcb->pid); - } - - /* Delete the thread's stack if one has been allocated */ - -#ifndef CONFIG_CUSTOM_STACK - if (tcb->stack_alloc_ptr) - { - up_release_stack(tcb); - } -#endif - - /* Delete the tasks's allocated DSpace region (external modules only) */ - -#ifdef CONFIG_PIC - if (tcb->dspace) - { - if (tcb->dspace->crefs <= 1) - { - sched_free(tcb->dspace); - } - else - { - tcb->dspace->crefs--; - } - } -#endif - - /* Release command line arguments that were allocated for task - * start/re-start. - */ - - if ((tcb->flags & TCB_FLAG_TTYPE_MASK) == TCB_FLAG_TTYPE_TASK) - { - for (i = 1; i < CONFIG_MAX_TASK_ARGS+1 && tcb->argv[i]; i++) - { - sched_free((FAR void*)tcb->argv[i]); - } - } - - /* Release this thread's reference to the address environment */ - -#ifdef CONFIG_ADDRENV - ret = up_addrenv_release(tcb); -#endif - - /* Leave the group (if we did not already leady in task_exithook.c) */ - -#ifdef HAVE_TASK_GROUP - group_leave(tcb); -#endif - /* And, finally, release the TCB itself */ - - sched_free(tcb); - } - - return ret; -} - |