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Idea Re: G4Timer Questions 

Keywords: G4Timer, G4Timer Stop, G4Timer Start
Forum: Run Management
Re: Question G4Timer Questions (Zach Marshall)
Date: 19 Aug, 2006
From: Zach Marshall <zmarshal@caltech.edu>

Hello Again,

Two new concerns about G4Timer:

1) All the Get...Time() functions have a return line:
return diff/sysconf(_SC_CLK_TCK);

But sysconf as it is defined above is:
00057      if( a == _SC_CLK_TCK ) return 1000;
00058      else return 0;

Perhaps there should be some protection against a divide by zero error here?


2) The system variable being used, _SC_CLK_TCK:
"The number of clock ticks per  second;  the  corresponding macro is CLK_TCK."

But various libraries I have seen note the following about CLOCKS_PER_SEC:
CLK_TCK is equivalent, but considered obsolete.

Perhaps this should be changed?


Cheers,
Zach

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