Re: [boost] boost::timers finalization

From: Philippe Vaucher (philippe.vaucher_at_[hidden])
Date: 2007-04-30 21:53:01

On 4/30/07, Sebastian Redl <sebastian.redl_at_[hidden]> wrote:
>
> It is implemented and works. I've got a 2.6.14 kernel 64-bit Gentoo with
> a 2.5 glibc.

I found why my device_doesn't work, it's because I time a usleep(), and for
some reasons I ignore it refuses to work.

Here's a code to illustrate it :

#include <iostream>
#include <cstdio>
#include <ctime>

#include <sys/time.h>

using namespace std;

inline void test_usleep(int milliseconds)
{
    usleep(milliseconds * 1000);
}

inline void do_something()
{

    for(int i = 0; i < 10000; ++i)
        cout << 1 << '\b' << flush;
}

int main ()
{
    cout << "testing with usleep" << endl;
    cout << "before: " << clock() << endl;
    test_usleep(5000);
    cout << "after : " << clock() << endl;

    cout << "testing with code" << endl;
    cout << "before: " << clock() << endl;
    do_something();
    cout << "after : " << clock() << endl;

    return 0;
}

By me it displays :

testing with usleep
before: 0
after : 0
testing with code
before: 0
after : 60000

Is this a known behavior of std::clock() ?
Philippe