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Re: Little problem in util.cpp and simple solution [message #35995 is a reply to message #35992]

Tue, 17 April 2012 09:45

Zbych
Messages: 332
Registered: July 2009

Senior Member

Removing sign bit like this:

int msecs(int from) { return int((GetTickCount() - (dword)from) & 0x7fffffff); }
                                                                ^^^^^^^^^^^^^^^^

is not a good idea. There are some places in upp that rely on sign bit (e.g. httcli):

if(msecs(end_time) >= 0) {
^^^^^^^^^^^^^^^^^^^^^^^^^^
	error = NFormat("Timeout reading footer block (%d B).", body.GetLength());
	break;
}

While in other places msecs is used incorrectly (httpcli again):

while(msecs() < end_time) {

Someone forgot that ticks wrap every ~50 days (or ~25 days if sign bit is masked).

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[Message index]

		Little problem in util.cpp and simple solution By: koldo on Sun, 15 April 2012 22:16
		Re: Little problem in util.cpp and simple solution By: mirek on Mon, 16 April 2012 21:55
		Re: Little problem in util.cpp and simple solution By: Zbych on Tue, 17 April 2012 09:45
		Re: Little problem in util.cpp and simple solution By: Zbych on Tue, 17 April 2012 09:52
		Re: Little problem in util.cpp and simple solution By: mirek on Tue, 17 April 2012 10:03

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