pointgreycam/aux.c

59 lines
1.8 KiB
C

/*
* This file is part of the grasshopper project.
* Copyright 2020 Edward V. Emelianov <edward.emelianoff@gmail.com>.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include <linux/limits.h> // PATH_MAX
#include <stdio.h>
#include <stdarg.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "aux.h"
#include "cmdlnopts.h"
// print messages for given verbose_level
int verbose(verblevel levl, const char *fmt, ...){
if((unsigned)verbose_level < levl) return 0;
va_list ar; int i;
va_start(ar, fmt);
i = vprintf(fmt, ar);
va_end(ar);
printf("\n");
fflush(stdout);
return i;
}
/**
* @brief check_filename - find file name "outfile_xxxx.suff" NOT THREAD-SAFE!
* @param outfile - file name prefix
* @param suff - file name suffix
* @return NULL or next free file name like "outfile_0010.suff" (don't free() it!)
*/
char *check_filename(char *outfile, char *suff){
static char buff[PATH_MAX];
struct stat filestat;
int num;
for(num = 1; num < 10000; num++){
if(snprintf(buff, PATH_MAX, "%s_%04d.%s", outfile, num, suff) < 1)
return NULL;
if(stat(buff, &filestat)) // OK, file not exists
return buff;
}
return NULL;
}