source: tools/tracereport/misc_report.c @ 87d0a5b

#include <inttypes.h>
#include <stdio.h>
#include <stdbool.h>
#include <time.h>
#include <string.h>
#include "libtrace.h"
#include "tracereport.h"

static double starttime;
static double endtime;
static bool has_starttime = false;
static bool has_endtime = false;
static uint64_t packets = 0;

void misc_per_packet(struct libtrace_packet_t *packet)
{
        double ts = trace_get_seconds(packet);
        if (!has_starttime || starttime > ts)
                starttime = ts;
        if (!has_endtime || endtime < ts)
                endtime = ts;
        has_starttime = has_endtime = true;
        ++packets;
}

static char *ts_to_date(double ts)
{
        time_t sec = (time_t)ts;
        static char ret[1024];
        strcpy(ret,ctime(&sec));
        ret[strlen(ret)-1]='\0'; /* Get rid of the annoying \n */
        return ret;
}

static char *duration(double ts)
{
        static char ret[1024];
        char tmp[1024];
        ret[0]='\0';
        if (ts == 0) 
                return "0 seconds";
        if (ts>=24*60*60) {
                snprintf(ret,sizeof(ret),"%i days",(int)(ts/(24*60*60)));
                ts-=(int)(ts/(24*60*60))*24*60*60;
        }
        if (ts>=60*60) {
                snprintf(tmp,sizeof(tmp),"%s%i hours",
                                ret[0]?", ":"",
                                (int)ts/(60*60));
                strcat(ret,tmp);
                ts-=(int)(ts/(60*60))*60*60;
        }
        if (ts>=60) {
                snprintf(tmp,sizeof(tmp),"%s%i minutes",
                                ret[0]?", ":"",
                                (int)ts/60);
                strcat(ret,tmp);
                ts-=(int)(ts/60)*60;
        }
        if (ts>0) {
                snprintf(tmp,sizeof(tmp),"%s%.04f seconds",
                                ret[0]?", ":"",
                                ts);
                strcat(ret,tmp);
        }
        return ret;
}

void misc_report(void)
{
        printf("# Misc\n");
        printf("Start time: %.04f (%s)\n",starttime,ts_to_date(starttime));
        printf("End time: %.04f (%s)\n",endtime,ts_to_date(endtime));
        printf("Duration: %.04f (%s)\n",endtime-starttime,
                        duration(endtime-starttime));
        printf("Total Packets: %" PRIu64 "\n",packets);
        printf("Average packet rate: %.02f packets/sec\n",
                        packets/(endtime-starttime));
}