/****************************************************************************
* sched/group_setupidlefiles.c
*
* Copyright (C) 2007-2010, 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 <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <sched.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/fs/fs.h>
#include <nuttx/net/net.h>
#include "os_internal.h"
#include "group_internal.h"
#if CONFIG_NFILE_DESCRIPTORS > 0 || CONFIG_NSOCKET_DESCRIPTORS > 0
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: group_setupidlefiles
*
* Description:
* Configure the idle thread's TCB.
*
* Parameters:
* tcb - tcb of the idle task.
*
* Return Value:
* None
*
* Assumptions:
*
****************************************************************************/
int group_setupidlefiles(FAR struct task_tcb_s *tcb)
{
#if CONFIG_NFILE_DESCRIPTORS > 0 || CONFIG_NSOCKET_DESCRIPTORS > 0
FAR struct task_group_s *group = tcb->cmn.group;
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_DEV_CONSOLE)
int fd;
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0 || CONFIG_NSOCKET_DESCRIPTORS > 0
DEBUGASSERT(group);
#endif
#if CONFIG_NFILE_DESCRIPTORS > 0
/* Initialize file descriptors for the TCB */
files_initlist(&group->tg_filelist);
#endif
#if CONFIG_NSOCKET_DESCRIPTORS > 0
/* Allocate socket descriptors for the TCB */
net_initlist(&group->tg_socketlist);
#endif
/* Open stdin, dup to get stdout and stderr. This should always
* be the first file opened and, hence, should always get file
* descriptor 0.
*/
#if CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_DEV_CONSOLE)
fd = open("/dev/console", O_RDWR);
if (fd == 0)
{
/* Successfully opened /dev/console as stdin (fd == 0) */
(void)file_dup2(0, 1);
(void)file_dup2(0, 2);
}
else
{
/* We failed to open /dev/console OR for some reason, we opened
* it and got some file descriptor other than 0.
*/
if (fd > 0)
{
slldbg("Open /dev/console fd: %d\n", fd);
(void)close(fd);
}
else
{
slldbg("Failed to open /dev/console: %d\n", errno);
}
return -ENFILE;
}
#endif
/* Allocate file/socket streams for the TCB */
#if CONFIG_NFILE_STREAMS > 0
return group_setupstreams(tcb);
#else
return OK;
#endif
}
#endif /* CONFIG_NFILE_DESCRIPTORS || CONFIG_NSOCKET_DESCRIPTORS */
