Hello all!
Just wondering if there is a platform independent, or C++ standard,
function that can 'sleep' a single-threaded app for x milliseconds?
Cheers,
Jon
8  3264 
Jon Rea wrote:
Just wondering if there is a platform independent, or C++ standard,
function that can 'sleep' a single-threaded app for x milliseconds?
No.
V
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Reetesh Mukul wrote:
You can use boost::asio::deadline_timer for this purpose. This is
system independent,
It's not "system independent". It simply exists on more than one
system. There are systems on which *there is no* timer. Those
systems would still support a C++ implementation, but 'sleep' or
some such functionality just isn't available.
though you have to use boost package for such
purposes. Just check
http://asio.sourceforge.net/boost_as...tuttimer1.html.
Regards,
RM
V
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Victor Bazarov wrote:
It's not "system independent". It simply exists on more than one
system. There are systems on which *there is no* timer. Those
systems would still support a C++ implementation, but 'sleep' or
some such functionality just isn't available.
Would these system have no <ctimeinclude ?
(only worked with PC's, I'm a beginner :)
Ek.H
Ek.H wrote:
Victor Bazarov wrote:
>It's not "system independent". It simply exists on more than one
system. There are systems on which *there is no* timer. Those
systems would still support a C++ implementation, but 'sleep' or
some such functionality just isn't available.
Would these system have no <ctimeinclude ?
(only worked with PC's, I'm a beginner :)
What would <ctimehave to do with 'sleep'?
V
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Victor Bazarov wrote:
Ek.H wrote:
>Victor Bazarov wrote:
>>It's not "system independent". It simply exists on more than one
system. There are systems on which *there is no* timer. Those
systems would still support a C++ implementation, but 'sleep' or
some such functionality just isn't available.
Would these system have no <ctimeinclude ?
(only worked with PC's, I'm a beginner :)
What would <ctimehave to do with 'sleep'?
Nothing, but you mentioned the possibility of a C++ implementation on
a system "where there is no timer". That raises the question as to how
one could implement std::clock() from <ctimeon such a system.
I guess, one standard conforming way would be to make clock() return 0 all
the time and have CLOCKS_PER_SEC = 0. However, such an implementation sure
would go against expectations.
Best
Kai-Uwe Bux
Kai-Uwe Bux wrote:
Victor Bazarov wrote:
>Ek.H wrote:
>>Victor Bazarov wrote:
It's not "system independent". It simply exists on more than one
system. There are systems on which *there is no* timer. Those
systems would still support a C++ implementation, but 'sleep' or
some such functionality just isn't available.
Would these system have no <ctimeinclude ?
(only worked with PC's, I'm a beginner :)
What would <ctimehave to do with 'sleep'?
Nothing, but you mentioned the possibility of a C++ implementation on
a system "where there is no timer". That raises the question as to how
one could implement std::clock() from <ctimeon such a system.
I guess, one standard conforming way would be to make clock() return
0 all the time and have CLOCKS_PER_SEC = 0.
No, it would be to make 'clock()' return (clock_t)(-1), as the C
Standard says.
However, such an
implementation sure would go against expectations.
Why would it go against expectations? What expectations does one have
when it says "implementation's best approximation"?
V
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Victor Bazarov wrote:
Kai-Uwe Bux wrote:
>Victor Bazarov wrote:
>>Ek.H wrote:
Victor Bazarov wrote:
It's not "system independent". It simply exists on more than one
system. There are systems on which *there is no* timer. Those
systems would still support a C++ implementation, but 'sleep' or
some such functionality just isn't available.
>
Would these system have no <ctimeinclude ?
(only worked with PC's, I'm a beginner :)
What would <ctimehave to do with 'sleep'?
Nothing, but you mentioned the possibility of a C++ implementation on
a system "where there is no timer". That raises the question as to how
one could implement std::clock() from <ctimeon such a system.
I guess, one standard conforming way would be to make clock() return
0 all the time and have CLOCKS_PER_SEC = 0.
No, it would be to make 'clock()' return (clock_t)(-1), as the C
Standard says.
Thanks.
>However, such an
implementation sure would go against expectations.
Why would it go against expectations? What expectations does one have
when it says "implementation's best approximation"?
Well, I guess expectations are a somewhat subjective matter. My expectations
clearly were not in line with the C standard :-(
Best
Kai-Uwe Bux This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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