Ticket #15585: FileTest.cpp

#include <stdio.h>

enum {
    fileCnt = 10000
};

#if defined(__HAIKU__)

#include <OS.h>

typedef bigtime_t Time;

enum {
    second = 1000000
};

inline bigtime_t Now()
{
    return system_time();
}

#elif defined(_WIN32)

#include <windows.h>

typedef __int64 Time;

Time second;

class InitTime {
public:
    InitTime() {
        QueryPerformanceFrequency((LARGE_INTEGER*)&second);
    }
} initTime;

inline Time Now()
{
    __int64 res;
    QueryPerformanceCounter((LARGE_INTEGER*)&res);
    return res;
}

#else
#error "Unsupported OS"
#endif

int main(int argCnt, char **args)
{
    FILE *f;
    char name[256];
    Time t, t2, times[fileCnt];
    if (argCnt != 2)
        return 1;
    
    t = Now();
    for (int i = 0; i < fileCnt; i++) {
        sprintf(name, "%s/%d", args[1], i);
        f = fopen(name, "w");
        fprintf(f, "File %d/n", i);
        fclose(f); f = NULL;
        t2 = Now();
        times[i] = t2 - t;
        t = t2;
    }
    for (int i = 0; i < fileCnt; i++) {
        printf("%.16E\n", double(times[i]) / double(second));
    }
    return  0;
}