Chris@366: #include <stdio.h>
Chris@366: #include <stdlib.h>
Chris@366: #include <sys/times.h>
Chris@366: #include <sys/types.h>
Chris@366: #include <unistd.h>
Chris@366: 
Chris@366: #include "pstats.h"
Chris@366: 
Chris@366: static struct tms tms_beg;
Chris@366: static struct tms tms_end;
Chris@366: static int has_times = 0;
Chris@366: 
Chris@366: 
Chris@366: void pstats_init(void)
Chris@366: {
Chris@366:     has_times = times(&tms_beg) != -1;
Chris@366: }
Chris@366: 
Chris@366: static void tms_report(void)
Chris@366: {
Chris@366:     double cputime;
Chris@366:     if (! has_times )
Chris@366:         return;
Chris@366:     times(&tms_end);
Chris@366:     cputime = ( ((float)tms_end.tms_utime + tms_end.tms_stime + tms_end.tms_cutime + tms_end.tms_cstime ) -
Chris@366:                 ((float)tms_beg.tms_utime + tms_beg.tms_stime + tms_beg.tms_cutime + tms_beg.tms_cstime ) )
Chris@366:                / sysconf(_SC_CLK_TCK);
Chris@366:     fprintf(stderr,"\tcputime=%.3f\n" , cputime);
Chris@366: }
Chris@366: 
Chris@366: static void ps_report(void)
Chris@366: {
Chris@366:     char buf[1024];
Chris@366: #ifdef __APPLE__ /*  MAC OS X */
Chris@366:     sprintf(buf,"ps -o command,majflt,minflt,rss,pagein,vsz -p %d 1>&2",getpid() );
Chris@366: #else /* GNU/Linux */
Chris@366:     sprintf(buf,"ps -o comm,majflt,minflt,rss,drs,pagein,sz,trs,vsz %d 1>&2",getpid() );
Chris@366: #endif    
Chris@366:     if (system( buf )==-1) {
Chris@366:         perror("system call to ps failed");
Chris@366:     }
Chris@366: }
Chris@366: 
Chris@366: void pstats_report()
Chris@366: {
Chris@366:     ps_report();
Chris@366:     tms_report();
Chris@366: }
Chris@366: