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/****************************************************************************
* examples/nsh/nsh_main.c
*
* Copyright (C) 2007-2011 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 <sys/stat.h>
#include <stdint.h>
#include <stdio.h>
#include <sched.h>
#include <errno.h>
#include <apps/nsh.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#ifndef CONFIG_BUILTIN_APPS
# warning "This example requires CONFIG_BUILTIN_APPS..."
# warning " You must have an appconfig file in your config directory to use this example"
#endif
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: user_initialize
****************************************************************************/
/* In order to support user_initialize if CONFIG_PAGING is defined, this
* function (and only this function) would need to get moved to the locked
* text region.
*/
#ifndef CONFIG_PAGING
void user_initialize(void)
{
/* stub */
}
#endif
/****************************************************************************
* Name: user_start
****************************************************************************/
int user_start(int argc, char *argv[])
{
int mid_priority;
#if defined(CONFIG_NSH_CONSOLE) && defined(CONFIG_NSH_TELNET)
int ret;
#endif
/* Initialize the NSH library */
nsh_initialize();
/* Set the priority of this task to something in the middle so that 'nice'
* can both raise and lower the priority.
*/
mid_priority = (sched_get_priority_max(SCHED_NSH) + sched_get_priority_min(SCHED_NSH)) >> 1;
{
struct sched_param param;
param.sched_priority = mid_priority;
(void)sched_setscheduler(0, SCHED_NSH, ¶m);
}
/* If both the console and telnet are selected as front-ends, then run
* the telnet front end on another thread.
*/
#if defined(CONFIG_NSH_CONSOLE) && defined(CONFIG_NSH_TELNET)
# ifndef CONFIG_CUSTOM_STACK
ret = task_create("nsh_telnetmain", mid_priority, CONFIG_NSH_STACKSIZE,
nsh_telnetmain, NULL);
# else
ret = task_create("nsh_telnetmain", mid_priority, nsh_telnetmain, NULL);
# endif
if (ret < 0)
{
/* The daemon is NOT running. Report the the error then fail...
* either with the serial console up or just exiting.
*/
fprintf(stderr, "ERROR: Failed to start TELNET daemon: %d\n", errno);
}
/* If only the telnet front-end is selected, run it on this thread */
#elif defined(CONFIG_NSH_TELNET)
return nsh_telnetmain(0, NULL);
#endif
/* If the serial console front end is selected, then run it on this thread */
#ifdef CONFIG_NSH_CONSOLE
return nsh_consolemain(0, NULL);
#endif
}
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