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/* perl's struct cv conflicts with the definition in sys/condvar.h (included by sys/proc.h) */
#define cv perl_cv
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#undef cv
#include "os/FreeBSD-kvm.h"
#include <unistd.h>
#include <sys/sysctl.h>
#include <sys/proc.h>
#include <sys/times.h>
#include <sys/user.h>
#include <fcntl.h>
#include <kvm.h>
#include <paths.h>
/* Make sure /proc is mounted and initialize some global vars */
char* OS_initialize(){
return NULL;
}
void OS_get_table(){
kvm_t *kd;
char errbuf[2048];
struct kinfo_proc *procs; /* array of processes */
int count; /* returns number of processes */
int i, j;
char ** argv;
char state[20];
char start[20];
char time[20];
char utime[20];
char stime[20];
char ctime[20];
char cutime[20];
char cstime[20];
char flag[20];
char sflag[20];
char pctcpu[20];
static char format[128];
char cmndline[ARG_MAX];
int priority;
int pagesize;
AV *group_array;
SV *group_ref;
SV *oncpu;
/* Open the kvm interface, get a descriptor */
if ((kd = kvm_openfiles(_PATH_DEVNULL, _PATH_DEVNULL, NULL, O_RDONLY, errbuf)) == NULL) {
/*fprintf(stderr, "kvm_open: %s\n", errbuf);*/
ppt_croak("kvm_open: ", errbuf);
}
/* Get the list of processes. */
if ((procs = kvm_getprocs(kd, KERN_PROC_PROC, 0, &count)) == NULL) {
kvm_close(kd);
/*fprintf(stderr, "kvm_getprocs: %s\n", kvm_geterr(kd));*/
ppt_croak("kvm_getprocs: ", kvm_geterr(kd));
}
pagesize = getpagesize();
/* Iterate through the processes in kinfo_proc, sending proc info */
/* to bless_into_proc for each proc */
for (i=0; i < count; i++) {
static struct pstats ps;
static struct session seslead;
strcpy(format, Defaultformat);
// retrieve the arguments
cmndline[0] = '\0';
argv = kvm_getargv(kd, (const struct kinfo_proc *) &(procs[i]) , 0);
if (argv) {
int j = 0;
while (argv[j] && strlen(cmndline)+strlen(argv[j])+1 <= ARG_MAX) {
strcat(cmndline, argv[j]);
if (argv[j+1]) {
strcat(cmndline, " ");
}
j++;
}
}
switch (procs[i].ki_stat) {
case SSTOP:
strcpy(state, "stop");
break;
case SSLEEP:
strcpy(state, "sleep");
break;
case SRUN:
strcpy(state, "run");
break;
case SIDL:
strcpy(state, "idle");
break;
case SWAIT:
strcpy(state, "wait");
break;
case SLOCK:
strcpy(state, "lock");
break;
case SZOMB:
strcpy(state, "zombie");
break;
default:
strcpy(state, "???");
break;
}
sprintf(start, "%d.%06d", procs[i].ki_start.tv_sec, procs[i].ki_start.tv_usec);
sprintf(time, "%.6f", procs[i].ki_runtime/1000000.0);
sprintf(utime, "%d.%06d", procs[i].ki_rusage.ru_utime.tv_sec, procs[i].ki_rusage.ru_utime.tv_usec);
sprintf(stime, "%d.%06d", procs[i].ki_rusage.ru_stime.tv_sec, procs[i].ki_rusage.ru_stime.tv_usec);
sprintf(ctime, "%d.%06d", procs[i].ki_childtime.tv_sec, procs[i].ki_childtime.tv_usec);
sprintf(cutime, "%d.%06d", procs[i].ki_rusage_ch.ru_utime.tv_sec, procs[i].ki_rusage_ch.ru_utime.tv_usec);
sprintf(cstime, "%d.%06d", procs[i].ki_rusage_ch.ru_stime.tv_sec, procs[i].ki_rusage_ch.ru_stime.tv_usec);
sprintf(flag, "0x%04x", procs[i].ki_flag);
sprintf(sflag, "0x%04x", procs[i].ki_sflag);
/* create groups array */
group_array = newAV();
for (j = 0; j < procs[i].ki_ngroups; j++) {
av_push(group_array, newSViv(procs[i].ki_groups[j]));
}
group_ref = newRV_noinc((SV *) group_array);
oncpu = procs[i].ki_oncpu == 0xff ? &PL_sv_undef : newSViv(procs[i].ki_oncpu);
/* get the current CPU percent usage for this process */
/* copied from FreeBSD sources bin/ps/ps.c and friends */
#define fxtofl(fixpt) ((double)(fixpt) / fscale)
int fscale;
size_t oldlen;
fixpt_t ccpu;
oldlen = sizeof(ccpu);
if (sysctlbyname("kern.ccpu", &ccpu, &oldlen, NULL, 0) == -1)
ppt_croak("cannot get kern.ccpu");
if (sysctlbyname("kern.fscale", &fscale, &oldlen, NULL, 0) == -1)
ppt_croak("cannot get kern.fscale");
double pcpu;
if (procs[i].ki_swtime == 0 || (procs[i].ki_flag & P_INMEM) == 0)
pcpu = 0.0;
else
pcpu = (100.0 * fxtofl(procs[i].ki_pctcpu) / (1.0 - exp(procs[i].ki_swtime * log(fxtofl(ccpu)))));
sprintf(pctcpu,"%.1f",pcpu);
bless_into_proc( format,
Fields,
procs[i].ki_pid,
procs[i].ki_ppid,
procs[i].ki_ruid,
procs[i].ki_uid,
procs[i].ki_rgid,
procs[i].ki_pgid,
procs[i].ki_sid,
procs[i].ki_jid,
flag,
sflag,
start,
time,
utime,
stime,
ctime,
cutime,
cstime,
pctcpu,
procs[i].ki_wmesg,
state,
"??", // will be resolved automatically
procs[i].ki_tdev,
procs[i].ki_comm,
cmndline,
procs[i].ki_pri.pri_user,
procs[i].ki_nice,
procs[i].ki_size, // virtual size
procs[i].ki_size, // alias
procs[i].ki_rssize, // current resident set size in pages
procs[i].ki_rssize*pagesize, // rss in bytes
procs[i].ki_tsize, // text size (pages) XXX
procs[i].ki_dsize, // data size (pages) XXX
procs[i].ki_ssize, // stack size (pages)
procs[i].ki_rusage.ru_majflt,
procs[i].ki_rusage.ru_minflt,
procs[i].ki_rusage_ch.ru_majflt, // XXX - most fields in ki_rusage_ch are not (yet) filled in
procs[i].ki_rusage_ch.ru_minflt, // XXX - most fields in ki_rusage_ch are not (yet) filled in
procs[i].ki_numthreads,
oncpu,
group_ref
);
}
if (kd) kvm_close(kd);
}
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