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Diffstat (limited to 'apps/examples/nsh/nsh_main.c')
-rw-r--r-- | apps/examples/nsh/nsh_main.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/apps/examples/nsh/nsh_main.c b/apps/examples/nsh/nsh_main.c new file mode 100644 index 000000000..6f63308b4 --- /dev/null +++ b/apps/examples/nsh/nsh_main.c @@ -0,0 +1,157 @@ +/**************************************************************************** + * 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 +} |