675205a5de
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@584 42af7a65-404d-4744-a932-0658087f49c3
129 lines
4.2 KiB
C
129 lines
4.2 KiB
C
/****************************************************************************
|
|
* sched_setuptaskfiles.c
|
|
*
|
|
* Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|
*
|
|
* 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 <sched.h>
|
|
#include <errno.h>
|
|
|
|
#include <nuttx/fs.h>
|
|
#include <nuttx/net.h>
|
|
|
|
#include "os_internal.h"
|
|
|
|
#if CONFIG_NFILE_DESCRIPTORS > 0 || CONFIG_NSOCKET_DESCRIPTORS > 0
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Function: sched_setuptaskfiles
|
|
*
|
|
* Description:
|
|
* Configure a newly allocated TCB so that it will inherit
|
|
* file descriptors and streams from the parent task.
|
|
*
|
|
* Parameters:
|
|
* tcb - tcb of the new task.
|
|
*
|
|
* Return Value:
|
|
* None
|
|
*
|
|
* Assumptions:
|
|
*
|
|
****************************************************************************/
|
|
|
|
int sched_setuptaskfiles(FAR _TCB *tcb)
|
|
{
|
|
#if CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_DEV_CONSOLE)
|
|
FAR _TCB *rtcb = (FAR _TCB*)g_readytorun.head;
|
|
int i;
|
|
#endif /* CONFIG_DEV_CONSOLE */
|
|
int ret = OK;
|
|
|
|
#if CONFIG_NFILE_DESCRIPTORS > 0
|
|
/* Allocate file descriptors for the TCB */
|
|
|
|
tcb->filelist = files_alloclist();
|
|
if (!tcb->filelist)
|
|
{
|
|
*get_errno_ptr() = ENOMEM;
|
|
return ERROR;
|
|
}
|
|
#endif /* CONFIG_NFILE_DESCRIPTORS */
|
|
|
|
#if CONFIG_NSOCKET_DESCRIPTORS > 0
|
|
/* Allocate socket descriptors for the TCB */
|
|
|
|
tcb->sockets = net_alloclist();
|
|
if (!tcb->sockets)
|
|
{
|
|
*get_errno_ptr() = ENOMEM;
|
|
return ERROR;
|
|
}
|
|
#endif /* CONFIG_NSOCKET_DESCRIPTORS */
|
|
|
|
#if CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_DEV_CONSOLE)
|
|
/* Duplicate the first three file descriptors */
|
|
|
|
if (rtcb->filelist)
|
|
{
|
|
for (i = 0; i < 3; i++)
|
|
{
|
|
(void)files_dup(&rtcb->filelist->fl_files[i],
|
|
&tcb->filelist->fl_files[i]);
|
|
}
|
|
}
|
|
|
|
#if CONFIG_NFILE_STREAMS > 0
|
|
/* Allocate file streams for the TCB */
|
|
|
|
ret = sched_setupstreams(tcb);
|
|
#endif /* CONFIG_NFILE_STREAMS */
|
|
#endif /* CONFIG_NFILE_DESCRIPTORS && CONFIG_DEV_CONSOLE */
|
|
return ret;
|
|
}
|
|
|
|
#endif /* CONFIG_NFILE_DESCRIPTORS || CONFIG_NSOCKET_DESCRIPTORS */
|