Chris@184: #include <stdio.h>
Chris@184: #include <stdlib.h>
Chris@184: #include <sys/times.h>
Chris@184: #include <sys/types.h>
Chris@184: #include <unistd.h>
Chris@184: 
Chris@184: #include "pstats.h"
Chris@184: 
Chris@184: static struct tms tms_beg;
Chris@184: static struct tms tms_end;
Chris@184: static int has_times = 0;
Chris@184: 
Chris@184: 
Chris@184: void pstats_init(void)
Chris@184: {
Chris@184:     has_times = times(&tms_beg) != -1;
Chris@184: }
Chris@184: 
Chris@184: static void tms_report(void)
Chris@184: {
Chris@184:     double cputime;
Chris@184:     if (! has_times )
Chris@184:         return;
Chris@184:     times(&tms_end);
Chris@184:     cputime = ( ((float)tms_end.tms_utime + tms_end.tms_stime + tms_end.tms_cutime + tms_end.tms_cstime ) -
Chris@184:                 ((float)tms_beg.tms_utime + tms_beg.tms_stime + tms_beg.tms_cutime + tms_beg.tms_cstime ) )
Chris@184:                / sysconf(_SC_CLK_TCK);
Chris@184:     fprintf(stderr,"\tcputime=%.3f\n" , cputime);
Chris@184: }
Chris@184: 
Chris@184: static void ps_report(void)
Chris@184: {
Chris@184:     char buf[1024];
Chris@184: #ifdef __APPLE__ /*  MAC OS X */
Chris@184:     sprintf(buf,"ps -o command,majflt,minflt,rss,pagein,vsz -p %d 1>&2",getpid() );
Chris@184: #else /* GNU/Linux */
Chris@184:     sprintf(buf,"ps -o comm,majflt,minflt,rss,drs,pagein,sz,trs,vsz %d 1>&2",getpid() );
Chris@184: #endif    
Chris@184:     if (system( buf )==-1) {
Chris@184:         perror("system call to ps failed");
Chris@184:     }
Chris@184: }
Chris@184: 
Chris@184: void pstats_report()
Chris@184: {
Chris@184:     ps_report();
Chris@184:     tms_report();
Chris@184: }
Chris@184: