153 lines
5.4 KiB
C
153 lines
5.4 KiB
C
/****************************************************************************
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* examples/nsh/nsh_main.c
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*
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* Copyright (C) 2007-2011 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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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 <sys/stat.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <sched.h>
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#include <errno.h>
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#include <apps/nsh.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: user_initialize
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****************************************************************************/
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/* In order to support user_initialize if CONFIG_PAGING is defined, this
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* function (and only this function) would need to get moved to the locked
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* text region.
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*/
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#ifndef CONFIG_PAGING
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void user_initialize(void)
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{
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/* stub */
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}
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#endif
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/****************************************************************************
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* Name: user_start
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****************************************************************************/
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int user_start(int argc, char *argv[])
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{
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int mid_priority;
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#if defined(CONFIG_NSH_CONSOLE) && defined(CONFIG_NSH_TELNET)
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int ret;
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#endif
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/* Initialize the NSH library */
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nsh_initialize();
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/* Set the priority of this task to something in the middle so that 'nice'
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* can both raise and lower the priority.
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*/
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mid_priority = (sched_get_priority_max(SCHED_NSH) + sched_get_priority_min(SCHED_NSH)) >> 1;
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{
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struct sched_param param;
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param.sched_priority = mid_priority;
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(void)sched_setscheduler(0, SCHED_NSH, ¶m);
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}
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/* If both the console and telnet are selected as front-ends, then run
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* the telnet front end on another thread.
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*/
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#if defined(CONFIG_NSH_CONSOLE) && defined(CONFIG_NSH_TELNET)
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# ifndef CONFIG_CUSTOM_STACK
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ret = task_create("nsh_telnetmain", mid_priority, CONFIG_NSH_STACKSIZE,
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nsh_telnetmain, NULL);
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# else
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ret = task_create("nsh_telnetmain", mid_priority, nsh_telnetmain, NULL);
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# endif
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if (ret < 0)
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{
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/* The daemon is NOT running. Report the the error then fail...
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* either with the serial console up or just exiting.
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*/
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fprintf(stderr, "ERROR: Failed to start TELNET daemon: %d\n", errno);
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}
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/* If only the telnet front-end is selected, run it on this thread */
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#elif defined(CONFIG_NSH_TELNET)
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return nsh_telnetmain(0, NULL);
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#endif
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/* If the serial console front end is selected, then run it on this thread */
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#ifdef CONFIG_NSH_CONSOLE
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return nsh_consolemain(0, NULL);
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#endif
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}
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