load_tests/logger/stdout_logger/log_generator.c

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <sys/time.h>
#include <errno.h>    
#include <unistd.h>

// Large text around 1Kb
#define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
#define RUNNING_IN_SECOND 3600

long long timeInMilliseconds(void) {
    struct timeval tv;

    gettimeofday(&tv,NULL);
    return (((long long)tv.tv_sec)*1000)+(tv.tv_usec/1000);
}

/* msleep(): Sleep for the requested number of milliseconds. */
void msleep(long msec)
{
    struct timespec ts;
    int res;

    if (msec < 0)
    {
        errno = EINVAL;
    }

    ts.tv_sec = msec / 1000;
    ts.tv_nsec = (msec % 1000) * 1000000;

    do {
        res = nanosleep(&ts, &ts);
    } while (res && errno == EINTR);
}

int main()  {
    int t = atoi(getenv("TIME"));
    int iteration = atoi(getenv("ITERATION"))*1000;
    int i = 0;
    int idCounter = 10000000;

    while (i < t) {
        int j = 0;
        long long startSeconds;
        long long endSeconds;
        startSeconds = timeInMilliseconds();
        while (j < iteration) {   
            printf("%d_%lld_%s\n", idCounter, startSeconds, ONE_KB_TEXT);
            idCounter=idCounter+1;
            j=j+1;
        }
        i = i + 1;
        endSeconds = timeInMilliseconds();
        msleep(1000+startSeconds-endSeconds);
    }

    // Uncomment below two lines to Keep the generator running for 1 hour
    // fflush(stdout);
    // sleep(RUNNING_IN_SECOND);

    return 0;
}