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/****************************************************************************
* sched_setuppthreadfiles.c
*
* Copyright (C) 2007, 2009 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 <nuttx/fs.h>
#include <nuttx/net.h>
#include <nuttx/lib.h>
#include "os_internal.h"
#if CONFIG_NFILE_DESCRIPTORS > 0 || CONFIG_NSOCKET_DESCRIPTORS > 0
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Function: sched_setuppthreadfiles
*
* Description:
* Configure a newly allocated TCB so that it will inherit
* file descriptors and streams from the parent pthread.
*
* Parameters:
* tcb - tcb of the new task.
*
* Return Value:
* OK (if an error were returned, it would need to be a non-negated
* errno value).
*
* Assumptions:
*
****************************************************************************/
int sched_setuppthreadfiles(FAR _TCB *tcb)
{
FAR _TCB *rtcb = (FAR _TCB*)g_readytorun.head;
#if CONFIG_NFILE_DESCRIPTORS > 0
/* The child thread inherits the parent file descriptors */
tcb->filelist = rtcb->filelist;
files_addreflist(tcb->filelist);
#if CONFIG_NFILE_STREAMS > 0
/* The child thread inherits the parent streams */
tcb->streams = rtcb->streams;
lib_addreflist(tcb->streams);
#endif /* CONFIG_NFILE_STREAMS */
#endif /* CONFIG_NFILE_DESCRIPTORS */
#if CONFIG_NSOCKET_DESCRIPTORS > 0
/* The child thread inherits the parent file descriptors */
tcb->sockets = rtcb->sockets;
net_addreflist(tcb->sockets);
#endif /* CONFIG_NSOCKET_DESCRIPTORS */
return OK;
}
#endif /* CONFIG_NFILE_DESCRIPTORS || CONFIG_NSOCKET_DESCRIPTORS */
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