109 lines
3.0 KiB
C
109 lines
3.0 KiB
C
/****************************************************************************
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* sched/group/group_setupidlefiles.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 <stdio.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sched.h>
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#include <assert.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/fs/fs.h>
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#include <nuttx/net/net.h>
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#include "group/group.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: group_setupidlefiles
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*
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* Description:
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* Configure the idle thread's TCB.
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*
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* Input Parameters:
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* tcb - tcb of the idle task.
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*
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* Returned Value:
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* 0 is returned on success; a negated errno value is returned on a
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* failure.
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*
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****************************************************************************/
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int group_setupidlefiles(FAR struct task_tcb_s *tcb)
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{
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#ifdef CONFIG_DEV_CONSOLE
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int fd;
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#endif
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DEBUGASSERT(tcb->cmn.group != NULL);
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/* Open stdin, dup to get stdout and stderr. This should always
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* be the first file opened and, hence, should always get file
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* descriptor 0.
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*/
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#ifdef CONFIG_DEV_CONSOLE
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fd = nx_open("/dev/console", O_RDWR);
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if (fd == 0)
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{
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/* Successfully opened /dev/console as stdin (fd == 0) */
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nx_dup2(0, 1);
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nx_dup2(0, 2);
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}
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else
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{
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/* We failed to open /dev/console OR for some reason, we opened
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* it and got some file descriptor other than 0.
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*/
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if (fd > 0)
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{
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sinfo("Open /dev/console fd: %d\n", fd);
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nx_close(fd);
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}
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else
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{
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serr("ERROR: Failed to open /dev/console: %d\n", fd);
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}
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return -ENFILE;
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}
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#endif
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/* Allocate file/socket streams for the TCB */
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#ifdef CONFIG_FILE_STREAM
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return group_setupstreams(tcb);
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#else
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return OK;
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#endif
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}
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