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/*
* ***************************************************************************
* MALOC = < Minimal Abstraction Layer for Object-oriented C >
* Copyright (C) 1994--2000 Michael Holst
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
* rcsid="$Id: main.c,v 1.10 2006/05/08 04:39:44 mholst Exp $"
* ***************************************************************************
*/
/*
* ***************************************************************************
* File: main.c
*
* Purpose: Main driver for testing the Vsh_shell.
*
* Author: Michael Holst
* ***************************************************************************
*/
#include <maloc/maloc.h>
#define VEMBED(rctag) VPRIVATE const char* rctag; \
static void* use_rcsid=(0 ? &use_rcsid : (void*)&rcsid);
VEMBED(rcsid="$Id: main.c,v 1.10 2006/05/08 04:39:44 mholst Exp $")
/* Some help to organize the application-specific shell commands */
typedef enum APPcommand {
app_none,
app_help,
app_stat,
app_hello,
app_bye
} APPcommand;
/*
* ***************************************************************************
* Routine: APPgetCmd
*
* Purpose: The application-specific shell parser
*
* Author: Michael Holst
* ***************************************************************************
*/
VPRIVATE APPcommand APPgetCmd(void *thee, int argc, char *argv[])
{
APPcommand theCmd = app_none;
if (!strcmp(argv[0],"")) {
theCmd = app_none;
} else if (!strcmp(argv[0],"help")) {
theCmd = app_help;
} else if (!strcmp(argv[0],"stat")) {
theCmd = app_stat;
} else if (!strcmp(argv[0],"hello")) {
theCmd = app_hello;
} else if (!strcmp(argv[0],"bye")) {
theCmd = app_bye;
} else {
theCmd = app_none;
}
return theCmd;
}
/*
* ***************************************************************************
* Routine: APPsh
*
* Purpose: The application-specific shell for enriching the vsh_shell
* or for overriding the builtin vsh_shell commands.
*
* Return codes (required):
*
* rc=0 --> APPsh does not know about this command
* rc=1 --> APPsh handled this command sucessfully
* rc=2 --> APPsh handled this command sucessfully and wants to exit!
*
* Author: Michael Holst
* ***************************************************************************
*/
VPRIVATE int APPsh(void *pthee, int argc, char *argv[])
{
Vsh *thee = (Vsh*)pthee;
int rc;
APPcommand theCmd;
static int init=0;
/* one-time intialization */
if (!init) {
init=1;
}
/* default return code (success) */
rc = 1;
/* get the command */
theCmd = APPgetCmd(thee, argc, argv);
/* decode and execute the command */
switch (theCmd) {
case app_help:
if (argc==1) {
Vnm_print(1,"%s: Application-layer Help Menu:\n",
Vsh_getenv(thee,"SHELL"));
Vnm_print(1," help --> Print this menu.\n");
Vnm_print(1," stat --> Print some environ variables.\n");
Vnm_print(1," hello --> Print 'Hello, World!'.\n");
Vnm_print(1," bye --> Print 'Bye, World!' and exit.\n");
rc = 0; /* pretend we didn't see it so subshell can help too */
} else {
rc = 0; /* pretend we didn't see it so subshell can help too */
}
break;
case app_stat:
Vnm_print(1,"%s(APPsh): IFNAM=<%s> LMAX=<%d> LTOL=<%e>\n",
Vsh_getenv(thee,"SHELL"),
Vsh_getenv(thee,"IFNAM"),
Vsh_getenvInt(thee,"LMAX"),
Vsh_getenvReal(thee,"LTOL"));
break;
case app_hello:
Vnm_print(1,"%s(APPsh): Hello, World!\n",
Vsh_getenv(thee,"SHELL"));
break;
case app_bye:
Vnm_print(1,"%s(APPsh): Bye, World!\n",
Vsh_getenv(thee,"SHELL"));
rc = 2;
break;
default:
rc = 0;
break;
}
return rc;
}
/*
* ***************************************************************************
* Routine: main
*
* Purpose: The main driver for initiating the Vsh_shell.
*
* Author: Michael Holst
* ***************************************************************************
*/
int main(int argc, char **argv)
{
int rc;
Vsh *vsh;
/* ********************************************************************* */
/* NOTE: avoiding Vnm_print before Vsh_ctor() allows output file tagging */
/* ********************************************************************* */
vsh = Vsh_ctor(VNULL, argc, argv);
rc = Vsh_shell(vsh, VNULL, vsh, &APPsh);
Vsh_dtor(&vsh);
/* some final i/o */
Vnm_print(1,"\n");
Vnm_print(1,"maloc_leaks = [\n");
Vnm_print(1,"%% --------------------------------------"
"--------------------------------------\n");
Vnm_print(1,"%% Footprint Areas Malloc Free"
" Highwater Class\n"),
Vnm_print(1,"%% --------------------------------------"
"--------------------------------------\n");
Vmem_print(VNULL);
Vmem_printTotal();
Vnm_print(1,"%% --------------------------------------"
"--------------------------------------\n");
Vnm_print(1,"];\n");
/* normal return */
return rc;
}
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