// recursivity!!!
void pid_store_cpu(unsigned index, unsigned parent, unsigned *utime, unsigned *stime) {
if (pids[index].level == 1) {
*utime = 0;
*stime = 0;
}
// Remove unused parameter warning
(void)parent;
unsigned utmp = 0;
unsigned stmp = 0;
pid_get_cpu_time(index, &utmp, &stmp);
*utime += utmp;
*stime += stmp;
unsigned i;
for (i = index + 1; i < (unsigned)max_pids; i++) {
if (pids[i].parent == (pid_t)index)
pid_store_cpu(i, index, utime, stime);
}
if (pids[index].level == 1) {
pids[index].utime = *utime;
pids[index].stime = *stime;
}
}
// recursivity!!!
void pid_store_cpu(unsigned index, unsigned parent, unsigned *utime, unsigned *stime) {
if (pids[index].level == 1) {
*utime = 0;
*stime = 0;
}
unsigned utmp = 0;
unsigned stmp = 0;
pid_get_cpu_time(index, &utmp, &stmp);
*utime += utmp;
*stime += stmp;
int i;
for (i = index + 1; i < MAX_PIDS; i++) {
if (pids[i].parent == index)
pid_store_cpu(i, index, utime, stime);
}
if (pids[index].level == 1) {
pids[index].utime = *utime;
pids[index].stime = *stime;
}
}
// recursivity!!!
static char *print_top(unsigned index, unsigned parent, unsigned *utime, unsigned *stime, unsigned itv, float *cpu, int *cnt) {
char *rv = NULL;
char procdir[20];
snprintf(procdir, 20, "/proc/%u", index);
struct stat s;
if (stat(procdir, &s) == -1)
return NULL;
if (pids[index].level == 1) {
pgs_rss = 0;
pgs_shared = 0;
*utime = 0;
*stime = 0;
*cnt = 0;
}
(*cnt)++;
pid_getmem(index, &pgs_rss, &pgs_shared);
unsigned utmp;
unsigned stmp;
pid_get_cpu_time(index, &utmp, &stmp);
*utime += utmp;
*stime += stmp;
int i;
for (i = index + 1; i < MAX_PIDS; i++) {
if (pids[i].parent == index)
print_top(i, index, utime, stime, itv, cpu, cnt);
}
if (pids[index].level == 1) {
// pid
char pidstr[10];
snprintf(pidstr, 10, "%u", index);
// command
char *cmd = pid_proc_cmdline(index);
char *ptrcmd;
if (cmd == NULL) {
if (pids[index].zombie)
ptrcmd = "(zombie)";
else
ptrcmd = "";
}
else
ptrcmd = cmd;
// user
char *user = pid_get_user_name(pids[index].uid);
char *ptruser;
if (user)
ptruser = user;
else
ptruser = "";
char entry[60];
snprintf(entry, 60, "%s:%s:%s", pidstr, ptruser, ptrcmd);
// memory
int pgsz = getpagesize();
char rss[10];
snprintf(rss, 10, "%u", pgs_rss * pgsz / 1024);
char shared[10];
snprintf(shared, 10, "%u", pgs_shared * pgsz / 1024);
// uptime
unsigned long long uptime = pid_get_start_time(index);
if (clocktick == 0)
clocktick = sysconf(_SC_CLK_TCK);
uptime /= clocktick;
uptime = sysuptime - uptime;
unsigned sec = uptime % 60;
uptime -= sec;
uptime /= 60;
unsigned min = uptime % 60;
uptime -= min;
uptime /= 60;
unsigned hour = uptime;
char uptime_str[50];
snprintf(uptime_str, 50, "%02u:%02u:%02u", hour, min, sec);
// cpu
itv *= clocktick;
float ud = (float) (*utime - pids[index].utime) / itv * 100;
float sd = (float) (*stime - pids[index].stime) / itv * 100;
float cd = ud + sd;
// if (cd > 100)
// cd = 99.9;
*cpu = cd;
char cpu_str[10];
snprintf(cpu_str, 10, "%2.1f", cd);
// process count
char prcs_str[10];
snprintf(prcs_str, 10, "%d", *cnt);
if (asprintf(&rv, "%-5.5s %-9.9s %-8.8s %-8.8s %-5.5s %-4.4s %-9.9s %s",
pidstr, ptruser, rss, shared, cpu_str, prcs_str, uptime_str, ptrcmd) == -1)
errExit("asprintf");
if (cmd)
free(cmd);
if (user)
free(user);
}
return rv;
}
