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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-09-17 18:18:44 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-09-17 18:18:44 +0000 |
commit | 57623d42ebb04f0a0b9e6eb7c0847a3ece2aa0ff (patch) | |
tree | 25d07d14e920d31c0b1947c9ca586f2a01fc32d8 /apps/nshlib/nsh_consolemain.c | |
download | px4-firmware-57623d42ebb04f0a0b9e6eb7c0847a3ece2aa0ff.tar.gz px4-firmware-57623d42ebb04f0a0b9e6eb7c0847a3ece2aa0ff.tar.bz2 px4-firmware-57623d42ebb04f0a0b9e6eb7c0847a3ece2aa0ff.zip |
Resync new repository with old repo r5166
git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5153 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'apps/nshlib/nsh_consolemain.c')
-rw-r--r-- | apps/nshlib/nsh_consolemain.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/apps/nshlib/nsh_consolemain.c b/apps/nshlib/nsh_consolemain.c new file mode 100644 index 000000000..6b51be470 --- /dev/null +++ b/apps/nshlib/nsh_consolemain.c @@ -0,0 +1,170 @@ +/**************************************************************************** + * apps/nshlib/nsh_consolemain.c + * + * Copyright (C) 2007-2009, 2011-2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * 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 Gregory Nutt 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 <stdio.h> +#include <assert.h> + +#include <apps/readline.h> + +#include "nsh.h" +#include "nsh_console.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nsh_consolemain + * + * Description: + * This interfaces maybe to called or started with task_start to start a + * single an NSH instance that operates on stdin and stdout (/dev/console). + * This function does not return. + * + * Input Parameters: + * Standard task start-up arguements. These are not used. argc may be + * zero and argv may be NULL. + * + * Returned Values: + * This function does not normally return. exit() is usually called to + * terminate the NSH session. This function will return in the event of + * an error. In that case, a nonzero value is returned (1). + * + ****************************************************************************/ + +int nsh_consolemain(int argc, char *argv[]) +{ + FAR struct console_stdio_s *pstate = nsh_newconsole(); + int ret; + + DEBUGASSERT(pstate); + + /* If we are using a USB serial console, then we will have to wait for the + * USB to be connected to the host. + */ + +#ifdef HAVE_USB_CONSOLE + ret = nsh_usbconsole(); + DEBUGASSERT(ret == OK); +#endif + + /* Present a greeting */ + + fputs(g_nshgreeting, pstate->cn_outstream); + fflush(pstate->cn_outstream); + + /* Execute the startup script */ + +#ifdef CONFIG_NSH_ROMFSETC + (void)nsh_script(&pstate->cn_vtbl, "init", NSH_INITPATH); +#endif + + /* Then enter the command line parsing loop */ + + for (;;) + { + /* For the case of debugging the USB console... dump collected USB trace data */ + + nsh_usbtrace(); + + /* Display the prompt string */ + + fputs(g_nshprompt, pstate->cn_outstream); + fflush(pstate->cn_outstream); + + /* Get the next line of input */ + + ret = readline(pstate->cn_line, CONFIG_NSH_LINELEN, + INSTREAM(pstate), OUTSTREAM(pstate)); + if (ret > 0) + { + /* Parse process the command */ + + (void)nsh_parse(&pstate->cn_vtbl, pstate->cn_line); + fflush(pstate->cn_outstream); + } + + /* Readline normally returns the number of characters read, + * but will return 0 on end of file or a negative value + * if an error occurs. Either will cause the session to + * terminate. + */ + + else + { + fprintf(pstate->cn_outstream, g_fmtcmdfailed, "nsh_consolemain", + "readline", NSH_ERRNO_OF(-ret)); + nsh_exit(&pstate->cn_vtbl, 1); + } + } + + /* Clean up */ + + nsh_exit(&pstate->cn_vtbl, 0); + + /* We do not get here, but this is necessary to keep some compilers happy */ + + return OK; +} |