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94 lines
3.8 KiB
C
94 lines
3.8 KiB
C
/*
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* cmdlnopts.c - the only function that parse cmdln args and returns glob parameters
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*
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* Copyright 2013 Edward V. Emelianoff <eddy@sao.ru>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#include <assert.h>
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#include <stdio.h>
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#include <string.h>
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#include <strings.h>
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#include <math.h>
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#include <limits.h>
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#include "cmdlnopts.h"
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#include "usefull_macros.h"
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/*
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* here are global parameters initialisation
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*/
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static int help;
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static glob_pars G;
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int quiet = 0; // less messages @ stdout
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// DEFAULTS
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// default global parameters
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glob_pars const Gdefault = {
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.showtemp = 0
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,.comdev = "/dev/ttyUSB0"
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,.rot1angle = -1000.
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,.rot2angle = -1000.
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,.l1steps = INT_MAX
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,.l2steps = INT_MAX
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};
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/*
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* Define command line options by filling structure:
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* name has_arg flag val type argptr help
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*/
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myoption cmdlnopts[] = {
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{"help", NO_ARGS, NULL, 'h', arg_none, APTR(&help), N_("show this help")},
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{"quiet", NO_ARGS, NULL, 'q', arg_none, APTR(&quiet), N_("don't show anything @screen from stdout")},
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{"temp", NO_ARGS, NULL, 't', arg_none, APTR(&G.showtemp), N_("show temperature of both MCU")},
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{"comdev", NEED_ARG, NULL, 'd', arg_string, APTR(&G.comdev), N_("terminal device filename")},
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{"sendraw", NEED_ARG, NULL, 'a', arg_string, APTR(&G.sendraw), N_("send RAW string to port and read the answer")},
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{"rot1", NEED_ARG, NULL, 'R', arg_double, APTR(&G.rot1angle), N_("rotate polaroid to given angle")},
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{"rot2", NEED_ARG, NULL, 'r', arg_double, APTR(&G.rot2angle), N_("rotate lambda/4 to given angle")},
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{"status", NO_ARGS, NULL, 's', arg_none, APTR(&G.getstatus), N_("get device status")},
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{"wait", NO_ARGS, NULL, 'w', arg_none, APTR(&G.waitold), N_("wait while all moving ends")},
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{"async", NO_ARGS, NULL, 'y', arg_none, APTR(&G.dontwait), N_("asyncronous moving - don't wait")},
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{"lin1", NEED_ARG, NULL, 'L', arg_int, APTR(&G.l1steps), N_("move linear stage 1 (polaroid) to N steps")},
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{"lin2", NEED_ARG, NULL, 'l', arg_int, APTR(&G.l2steps), N_("move linear stage 2 (L/4) to N steps")},
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{"absmove", NO_ARGS, NULL, 'A', arg_none, APTR(&G.absmove), N_("absolute move (without this flag moving is relative)")},
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{"stop", NO_ARGS, NULL, 'S', arg_none, APTR(&G.stopall), N_("stop any moving")},
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end_option
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};
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/**
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* Parse command line options and return dynamically allocated structure
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* to global parameters
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* @param argc - copy of argc from main
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* @param argv - copy of argv from main
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* @return allocated structure with global parameters
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*/
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glob_pars *parse_args(int argc, char **argv){
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void *ptr;
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ptr = memcpy(&G, &Gdefault, sizeof(G)); assert(ptr);
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// format of help: "Usage: progname [args]\n"
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// parse arguments
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parseargs(&argc, &argv, cmdlnopts);
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if(help) showhelp(-1, cmdlnopts);
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if(argc > 0){
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WARNX("%d unused parameters:\n", argc);
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for(int i = 0; i < argc; ++i)
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printf("\t%4d: %s\n", i+1, argv[i]);
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}
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return &G;
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}
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