3472de3500
Since up_release_stack auto detect whether the memory come from builtin heap
if (ttype == TCB_FLAG_TTYPE_KERNEL)
{
if (kmm_heapmember(dtcb->stack_alloc_ptr))
{
kmm_free(dtcb->stack_alloc_ptr);
}
}
else
{
/* Use the user-space allocator if this is a task or pthread */
if (umm_heapmember(dtcb->stack_alloc_ptr))
{
kumm_free(dtcb->stack_alloc_ptr);
}
}
This reverts commit 124e6ee53d.
176 lines
5.1 KiB
C
176 lines
5.1 KiB
C
/****************************************************************************
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* sched/sched/sched_releasetcb.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <sched.h>
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#include <errno.h>
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#include <nuttx/arch.h>
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#include <nuttx/sched.h>
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#include "sched/sched.h"
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#include "group/group.h"
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#include "timer/timer.h"
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxsched_releasepid
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*
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* Description: When a task is destroyed, this function must
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* be called to make its process ID available for re-use.
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****************************************************************************/
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static void nxsched_releasepid(pid_t pid)
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{
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int hash_ndx = PIDHASH(pid);
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/* Make any pid associated with this hash available. Note:
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* no special precautions need be taken here because the
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* following action is atomic
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*/
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g_pidhash[hash_ndx].tcb = NULL;
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g_pidhash[hash_ndx].pid = INVALID_PROCESS_ID;
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#ifdef CONFIG_SCHED_CPULOAD
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/* Decrement the total CPU load count held by this thread from the
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* total for all threads. Then we can reset the count on this
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* defunct thread to zero.
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*/
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g_cpuload_total -= g_pidhash[hash_ndx].ticks;
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g_pidhash[hash_ndx].ticks = 0;
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#endif
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxsched_release_tcb
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*
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* Description:
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* Free all resources contained in a TCB
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*
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* Input Parameters:
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* tcb - The TCB to be released
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* ttype - The type of the TCB to be released
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*
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* This thread type is normally available in the flags field of the TCB,
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* however, there are certain error recovery contexts where the TCB my
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* not be fully initialized when nxsched_release_tcb is called.
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*
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* Returned Value:
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* OK on success; ERROR on failure
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*
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* Assumptions:
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* Interrupts are disabled.
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*
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****************************************************************************/
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int nxsched_release_tcb(FAR struct tcb_s *tcb, uint8_t ttype)
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{
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int ret = OK;
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if (tcb)
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{
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#ifndef CONFIG_DISABLE_POSIX_TIMERS
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/* Release any timers that the task might hold. We do this
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* before release the PID because it may still be trying to
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* deliver signals (although interrupts are should be
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* disabled here).
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*/
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#ifdef CONFIG_HAVE_WEAKFUNCTIONS
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if (timer_deleteall != NULL)
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#endif
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{
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timer_deleteall(tcb->pid);
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}
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#endif
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/* Release the task's process ID if one was assigned. PID
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* zero is reserved for the IDLE task. The TCB of the IDLE
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* task is never release so a value of zero simply means that
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* the process ID was never allocated to this TCB.
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*/
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if (tcb->pid)
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{
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nxsched_releasepid(tcb->pid);
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}
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/* Delete the thread's stack if one has been allocated */
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if (tcb->stack_alloc_ptr)
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{
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up_release_stack(tcb, ttype);
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}
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#ifdef CONFIG_PIC
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/* Delete the task's allocated DSpace region (external modules only) */
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if (tcb->dspace != NULL)
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{
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if (tcb->dspace->crefs <= 1)
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{
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kmm_free(tcb->dspace);
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}
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else
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{
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tcb->dspace->crefs--;
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}
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}
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#endif
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#if defined(CONFIG_ARCH_ADDRENV) && defined(CONFIG_ARCH_KERNEL_STACK)
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/* Release the kernel stack */
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up_addrenv_kstackfree(tcb);
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#endif
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#ifdef CONFIG_ARCH_ADDRENV
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/* Release this thread's reference to the address environment */
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ret = up_addrenv_detach(tcb->group, tcb);
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#endif
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/* Leave the group (if we did not already leave in task_exithook.c) */
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group_leave(tcb);
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/* And, finally, release the TCB itself */
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kmm_free(tcb);
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}
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return ret;
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}
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