tools.h

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#ifndef TOOLS_HEADER_GUARD 
#define TOOLS_HEADER_GUARD
 
/*
 * tools.h : Auxiliary routines
 * 
 * (c) Copyright 2017-2024 Sampsa Riikonen
 * 
 * Authors: Sampsa Riikonen <sampsa.riikonen@iki.fi>
 * 
 * This file is part of the Valkka library.
 * 
 * Valkka is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>
 *
 */
 
#include "common.h"
#include "constant.h"
#include "logging.h"
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
 
static const int64_t NANOSEC_PER_SEC = 1000000000;
 
long int getCurrentMsTimestamp(); 
 
long int getMsDiff(timeval tv1, timeval tv2); 
 
struct timeval msToTimeval(long int mstimestamp); 
 
long int timevalToMs(struct timeval time); 
 
bool slotOk(SlotNumber n_slot); 
 
void normalize_timespec(struct timespec *ts, time_t sec, int64_t nanosec);
 
static char oneval[4] = {1,0,0,0};
static uint32_t* isLittleEndian = (uint32_t*)(oneval);
 
inline uint32_t deserialize_uint32_big_endian(unsigned char *buffer) {
    uint32_t value = 0;
    if (*isLittleEndian==1) {
        value |= buffer[0] << 24;
        value |= buffer[1] << 16;
        value |= buffer[2] << 8;
        value |= buffer[3];
    }
    else {
        value |= buffer[3] << 24;
        value |= buffer[2] << 16;
        value |= buffer[1] << 8;
        value |= buffer[0];
    }
    return value;
}
 
/*
// this was removed from live555 at some point
unsigned our_inet_addr(const char* cp)
{
        return inet_addr(cp);
}
*/
 
#endif