chaco_seconds.cpp

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/*This is needed, because the chaco library defines a "C" function seconds that conflicts with the Metis version.: */
 
#ifdef _INTEL_WIN_
#include   <time.h>
#else
#include   <sys/time.h>
#include   <sys/resource.h>
#endif
 
double chaco_seconds(void){
 
   double    curtime;
 
#ifdef RUSAGE_SELF
 
/* This timer is faster and more robust (if it exists). */
    struct rusage rusage;
    /*int getrusage(); commenting this out. not sure why it's there anymore
    *as it clobbers the prototype int getrusag(int target,rusage* results) which 
    *is defined in the <sys/time.h> and <sys/resource.h> header files. Leaving it 
    *for reference in case we have a problem here in the future*/
 
    getrusage(RUSAGE_SELF, &rusage);
    curtime = ((rusage.ru_utime.tv_sec + rusage.ru_stime.tv_sec) +
       1.0e-6 * (rusage.ru_utime.tv_usec + rusage.ru_stime.tv_usec));
 
#else
 
/* ANSI timer, but lower resolution & wraps around after ~36 minutes. */
 
    curtime = clock()/((double) CLOCKS_PER_SEC);
 
#endif
 
    return (curtime);
}