#include <stdlib.h>
#include <stdio.h>
#include <time.h>

typedef unsigned int uint32;

#include "pg_crc.h"
#include "fnv.h"
#include "xxhash.h"

#define VALUES 2000000000

void main() {

    int i;
    int result = FNV0_32_INIT;
    void * state;

    struct timeval start, end;

    gettimeofday(&start, NULL);
    for (i = 0; i < VALUES; i++) {
        result = fnv_32_buf(&i, 4, result);
    }
    gettimeofday(&end, NULL);

    printf("FNV  duration = %.3f\n", (end.tv_sec - start.tv_sec) + (end.tv_usec - start.tv_usec) / 1000000.0);

    gettimeofday(&start, NULL);
    for (i = 0; i < VALUES; i++) {
        result = fnv_32a_buf(&i, 4, result);
    }
    gettimeofday(&end, NULL);

    printf("FNVa duration = %.3f\n", (end.tv_sec - start.tv_sec) + (end.tv_usec - start.tv_usec) / 1000000.0);

    gettimeofday(&start, NULL);
    for (i = 0; i < VALUES; i++) {
        result = jenkins_one_at_a_time_hash(&i, 4);
    }
    gettimeofday(&end, NULL);

    printf("jenkins duration = %.3f\n", (end.tv_sec - start.tv_sec) + (end.tv_usec - start.tv_usec) / 1000000.0);

    gettimeofday(&start, NULL);
    for (i = 0; i < VALUES; i++) {
        INIT_CRC32(result);
        COMP_CRC32(result, &i, 4);
        FIN_CRC32(result);
    }
    gettimeofday(&end, NULL);

    printf("crc32 duration = %.3f\n", (end.tv_sec - start.tv_sec) + (end.tv_usec - start.tv_usec) / 1000000.0);

    gettimeofday(&start, NULL);
    for (i = 0; i < VALUES; i++) {
        state = XXH32_init(result);
        XXH32_update(state, &i, 4);
        XXH32_digest(state);
    }
    gettimeofday(&end, NULL);

    printf("xxhash duration = %.3f\n", (end.tv_sec - start.tv_sec) + (end.tv_usec - start.tv_usec) / 1000000.0);

}