debug.c

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/*
 * Copyright (C) 2013 Alexander Zimmermann <alexander.zimmermann@netapp.com>
 * Copyright (C) 2010-2013 Christian Samsel <christian.samsel@rwth-aachen.de>
 * Copyright (C) 2009 Tim Kosse <tim.kosse@gmx.de>
 * Copyright (C) 2007-2008 Daniel Schaffrath <daniel.schaffrath@mac.com>
 *
 * This file is part of Flowgrind.
 *
 * Flowgrind 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.
 *
 * Flowgrind 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 Flowgrind.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 
#include "debug.h"
 
#ifdef DEBUG
 
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */
 
#include <stdio.h>
#include <time.h>
#include <string.h>
 
#include "fg_time.h"
#include "fg_string.h"
 
inline void decrease_debuglevel()
{
        debug_level--;
        printf("DEBUG_LEVEL=%u", debug_level);
}
 
inline void increase_debuglevel()
{
        debug_level++;
        printf("DEBUG_LEVEL=%u\n", debug_level);
}
 
int debug_timestamp(char **strp)
{
        struct timespec now = {.tv_sec = 0, .tv_nsec = 0};
        static struct timespec first = {.tv_sec = 0, .tv_nsec = 0};
        static struct timespec last = {.tv_sec = 0, .tv_nsec = 0};
 
        gettime(&now);
 
        /* Save time of first call */
        if (!first.tv_sec && !first.tv_nsec)
                first = last = now;
 
        char timestamp[30] = "";
        ctimespec_r(&now, timestamp, sizeof(timestamp), true);
 
        if (asprintf(strp, "%s [+%8.6lf] (%8.6lf)", timestamp,
                     time_diff(&last, &now), time_diff(&first, &now)) == -1)
                return -1;
 
        last = now;
        return 0;
}
 
#endif /* DEBUG */