110 lines
3.8 KiB
C
110 lines
3.8 KiB
C
/****************************************************************************
|
|
* sched/group/group_exitinfo.c
|
|
*
|
|
* Copyright (C) 2018 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 <errno.h>
|
|
|
|
#include <nuttx/sched.h>
|
|
#include <nuttx/irq.h>
|
|
#include <nuttx/binfmt/binfmt.h>
|
|
|
|
#include "sched/sched.h"
|
|
#include "group/group.h"
|
|
|
|
#ifdef CONFIG_BINFMT_LOADABLE
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: group_exitinfo
|
|
*
|
|
* Description:
|
|
* This function may be called to when a task is loaded into memory. It
|
|
* will setup the to automatically unload the module when the task exits.
|
|
*
|
|
* Input Parameters:
|
|
* pid - The task ID of the newly loaded task
|
|
* bininfo - This structure allocated with kmm_malloc(). This memory
|
|
* persists until the task exits and will be used unloads
|
|
* the module from memory.
|
|
*
|
|
* Returned Value:
|
|
* This is a NuttX internal function so it follows the convention that
|
|
* 0 (OK) is returned on success and a negated errno is returned on
|
|
* failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int group_exitinfo(pid_t pid, FAR struct binary_s *bininfo)
|
|
{
|
|
FAR struct tcb_s *tcb;
|
|
FAR struct task_group_s *group;
|
|
irqstate_t flags;
|
|
|
|
DEBUGASSERT(bininfo != NULL);
|
|
flags = spin_lock_irqsave();
|
|
|
|
/* Get the TCB associated with the PID */
|
|
|
|
tcb = sched_gettcb(pid);
|
|
if (tcb == NULL)
|
|
{
|
|
spin_unlock_irqrestore(flags);
|
|
return -ESRCH;
|
|
}
|
|
|
|
/* Get the group that this task belongs to */
|
|
|
|
group = tcb->group;
|
|
DEBUGASSERT(group != NULL && group->tg_bininfo == NULL);
|
|
|
|
/* Save the binary info for use when the task exits */
|
|
|
|
group->tg_bininfo = bininfo;
|
|
|
|
spin_unlock_irqrestore(flags);
|
|
return OK;
|
|
}
|
|
|
|
#endif /* CONFIG_BINFMT_LOADABLE */
|