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#include <stdio.h>
#include <sys/time.h>
#include <pwd.h>
#include <fromtop.h>
#include <global.h>
#include <glibtop.h>
#include <glibtop/union.h>
void
sprint_time (char *s, time_t ti, unsigned long frequency)
{
time_t t = ti / frequency;
time_t centi_sec = (ti % 100) * 100 / 100;
if (t < 0) /* time overflow */
sprintf(s, ">>d");
else if (t >= 48*60*60) /* > 2 days */
sprintf(s, "%5lud", t/(24*60*60));
else if (t >= 60*60) /* > 1 hour */
sprintf(s, "%2lu:%02uh", t/(60*60), (unsigned) ((t/60)%60));
else if (t > 60) /* > 1 minute */
sprintf(s, "%2lu:%02um", t/60, (unsigned) t%60);
else
sprintf(s, "%2lu.%02lus", t, centi_sec);
}
/*
* Finds the current time (in microseconds) and calculates the time
* elapsed since the last update. This is essential for computing
* percent CPU usage.
*/
float get_elapsed_time(void)
{
struct timeval time;
struct timezone timez;
static double oldtime = 0.0;
float elapsed_time;
double newtime;
gettimeofday (&time, &timez);
newtime = ((double) time.tv_sec) + ((double) time.tv_usec / 1000000.0);
elapsed_time = (float) (newtime - oldtime);
oldtime = newtime;
return elapsed_time;
}
char * status(gtop_proc_t* task) {
#if (LIBGTOP_VERSION_CODE >= 1001000)
static char buf[32];
int pos = 0;
if (task->state & GLIBTOP_PROCESS_RUNNING)
buf[pos++] = 'R';
if (task->state & GLIBTOP_PROCESS_INTERRUPTIBLE)
buf[pos++] = 'S';
if (task->state & GLIBTOP_PROCESS_UNINTERRUPTIBLE)
buf[pos++] = 'D';
if (task->state & GLIBTOP_PROCESS_ZOMBIE)
buf[pos++] = 'Z';
if (task->state & GLIBTOP_PROCESS_STOPPED)
buf[pos++] = 'T';
if (((task->rss == 0) && !(task->state & GLIBTOP_PROCESS_ZOMBIE)) ||
(task->state & GLIBTOP_PROCESS_SWAPPING))
buf[pos++] = 'W';
if (task->nice < 0)
buf[pos++] = '<';
else if (task->nice > 0)
buf[pos++] = 'N';
buf[pos] = '\0';
#else
static char buf[4] = " ";
buf[0] = task->state;
if (task->rss == 0 && task->state != 'Z')
buf[1] = 'W';
else
buf[1] = ' ';
if (task->nice < 0)
buf[2] = '<';
else if (task->nice > 0)
buf[2] = 'N';
else
buf[2] = ' ';
#endif
return(buf);
}
gtop_proc_t *
get_proc_data (gtop_proc_t *p, pid_t pid)
{
glibtop_proc_state procstate;
glibtop_proc_time proctime;
glibtop_proc_uid procuid;
glibtop_proc_mem procmem;
glibtop_mem mem;
glibtop_cpu cpu;
unsigned long p_gl_main_mem;
struct passwd *pwd;
if (!p)
p = g_new0 (gtop_proc_t, 1);
p->pid = pid;
glibtop_get_proc_state (&procstate, p->pid);
p->cmd = g_strdup (procstate.cmd);
p->state = procstate.state;
pwd = getpwuid (procstate.uid);
if (pwd)
p->user = g_strdup (pwd->pw_name);
else
p->user = g_strdup_printf ("<%d>", procstate.uid);
glibtop_get_proc_uid (&procuid, p->pid);
p->ppid = procuid.ppid;
p->uid = procuid.uid;
p->nice = procuid.nice;
p->priority = procuid.priority;
glibtop_get_proc_mem (&procmem, p->pid);
p->size = (unsigned long) procmem.size >> 10;
p->rss = (unsigned long) procmem.rss >> 10;
p->resident = (unsigned long) procmem.resident >> 10;
p->share = (unsigned long) procmem.share >> 10;
glibtop_get_proc_time (&proctime, p->pid);
p->frequency = proctime.frequency ? proctime.frequency : 1000000;
p->utime = ((unsigned long) (proctime.utime * 100) / p->frequency);
p->stime = ((unsigned long) (proctime.stime * 100) / p->frequency);
p->cutime = ((unsigned long) (proctime.cutime * 100) / p->frequency);
p->cstime = ((unsigned long) (proctime.cstime * 100) / p->frequency);
p->start_time =
((unsigned long) (proctime.start_time * 100) / p->frequency);
p->state_string = status (p);
glibtop_get_cpu (&cpu);
if (!p->start_cpu_user || !p->start_cpu_system) {
p->start_cpu_user = (unsigned long) cpu.user;
p->start_cpu_system = (unsigned long) cpu.sys;
p->start_utime = p->utime;
p->start_stime = p->stime;
} else {
unsigned long user_diff, system_diff;
unsigned long utime_diff, stime_diff;
unsigned long this_diff, total_diff;
user_diff = (unsigned long) cpu.user - p->start_cpu_user;
system_diff = (unsigned long) cpu.sys - p->start_cpu_system;
utime_diff = p->utime - p->start_utime;
stime_diff = p->stime - p->start_stime;
total_diff = user_diff + system_diff;
this_diff = utime_diff + stime_diff;
#if 0
fprintf (stderr, "WCPU: (%lu,%lu) - (%lu,%lu) - (%lu,%lu)\n",
user_diff, system_diff, utime_diff, stime_diff,
total_diff, this_diff);
#endif
p->wcpu = this_diff * 1000 / total_diff;
}
if (p->cpu_user && p->cpu_system) {
unsigned long user_diff, system_diff;
unsigned long utime_diff, stime_diff;
unsigned long this_diff, total_diff;
user_diff = (unsigned long) cpu.user - p->cpu_user;
system_diff = (unsigned long) cpu.sys - p->cpu_system;
utime_diff = p->utime - p->last_utime;
stime_diff = p->stime - p->last_stime;
total_diff = user_diff + system_diff;
this_diff = utime_diff + stime_diff;
p->pcpu = this_diff * 1000 / total_diff;
#if 0
fprintf (stderr, "CPU: (%lu,%lu) - (%lu,%lu) - (%lu,%lu) - %lu\n",
user_diff, system_diff, utime_diff, stime_diff,
total_diff, this_diff, p->pcpu);
#endif
}
p->cpu_user = (unsigned long) cpu.user;
p->cpu_system = (unsigned long) cpu.sys;
p->last_utime = p->utime;
p->last_stime = p->stime;
glibtop_get_mem (&mem);
p_gl_main_mem = mem.total >> 10;
/* avoid divison by zero later. */
if (!p_gl_main_mem) p_gl_main_mem = 1;
p->pmem = p->rss * 1000 / p_gl_main_mem;
p->update_count++;
return p;
}
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