/**

 * hdr_decoder.c

 * Written by Michael Barker and released to the public domain,

 * as explained at http://creativecommons.org/publicdomain/zero/1.0/

 */

#include <stdint.h>

#include <stdbool.h>

#include <stdio.h>

#include <time.h>

#include <errno.h>

#include <string.h>

#include <hdr_histogram.h>

#include <hdr_histogram_log.h>

#if defined(_MSC_VER)

#pragma warning(push)

#pragma warning(disable: 4996)

#endif

int main(int argc, char** argv)

{

    int rc = 0;

    FILE* f;

    struct hdr_log_reader reader;

    struct hdr_histogram* h = NULL;

    hdr_timespec timestamp, interval;

    if (argc == 1)

    {

        f = stdin;

    }

    else

    {

        f = fopen(argv[1], "r");

    }

    if (!f)

    {

        fprintf(stderr, "Failed to open file(%s):%s\n", argv[1], strerror(errno));

        return -1;

    }

    if (hdr_log_reader_init(&reader))

    {

        fprintf(stderr, "Failed to init reader\n");

        return -1;

    }

    rc = hdr_log_read_header(&reader, f);

    if(rc)

    {

        fprintf(stderr, "Failed to read header: %s\n", hdr_strerror(rc));

        return -1;

    }

    while (true)

    {

        rc = hdr_log_read(&reader, f, &h, &timestamp, &interval);

        if (0 == rc)

        {

            hdr_percentiles_print(h, stdout, 5, 1.0, CLASSIC);

        }

        else if (EOF == rc)

        {

            break;

        }

        else

        {

            fprintf(stderr, "Failed to print histogram: %s\n", hdr_strerror(rc));

            return -1;

        }        

    }

    return 0;

}

#if defined(_MSC_VER)

#pragma warning(pop)

#endif