Add FreeBSD implementation
Original code (task list) is from Oliver Lehmann and was licensed under FreeBSD (BSD 2-clause.)
This commit is contained in:
Mike Massonnet
239
src/task-manager-freebsd.c
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239
src/task-manager-freebsd.c
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/*
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* Copyright (c) 2010 Mike Massonnet <mmassonnet@xfce.org>
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* Copyright (c) 2006 Oliver Lehmann <oliver@FreeBSD.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <kvm.h>
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#include <sys/user.h>
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#include <sys/proc.h>
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#include <pwd.h>
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#include <fcntl.h>
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#include <paths.h>
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#include <unistd.h>
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#include <glib.h>
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#include "task-manager.h"
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gboolean
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get_memory_usage (guint64 *memory_total, guint64 *memory_free, guint64 *memory_cache, guint64 *memory_buffers, guint64 *swap_total, guint64 *swap_free)
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{
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/* Get memory usage */
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{
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gulong total = 0, free = 0, inactive = 0;
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size_t size;
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size = sizeof (gulong);
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sysctlbyname ("vm.stats.vm.v_page_count", &total, &size, NULL, 0);
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size = sizeof (gulong);
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sysctlbyname ("vm.stats.vm.v_free_count", &free, &size, NULL, 0);
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size = sizeof (gulong);
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sysctlbyname ("vm.stats.vm.v_inactive_count", &inactive, &size, NULL, 0);
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*memory_total = total * getpagesize ();
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*memory_free = free * getpagesize ();
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*memory_cache = inactive * getpagesize ();
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*memory_buffers = 0;
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}
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/* Get swap usage */
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{
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kvm_t *kd;
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struct kvm_swap kswap;
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if ((kd = kvm_openfiles (_PATH_DEVNULL, _PATH_DEVNULL, NULL, O_RDONLY, NULL)) == NULL)
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return FALSE;
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kvm_getswapinfo (kd, &kswap, 1, 0);
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*swap_total = kswap.ksw_total * getpagesize ();
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*swap_free = (kswap.ksw_total - kswap.ksw_used) * getpagesize ();
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kvm_close (kd);
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}
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return TRUE;
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}
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gboolean
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get_cpu_usage (gushort *cpu_count, gfloat *cpu_user, gfloat *cpu_system)
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{
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/* Get CPU count */
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{
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size_t len = sizeof (*cpu_count);
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sysctlbyname ("hw.ncpu", cpu_count, &len, NULL, 0);
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}
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/* Get CPU usage */
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{
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static gulong cp_user = 0, cp_system = 0, cp_total = 0;
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static gulong cp_user_old = 0, cp_system_old = 0, cp_total_old = 0;
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gulong cpu_state[CPUSTATES] = { 0 };
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size_t len = sizeof (cpu_state);
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sysctlbyname ("kern.cp_time", &cpu_state, &len, NULL, 0);
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cp_user_old = cp_user;
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cp_system_old = cp_system;
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cp_total_old = cp_total;
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cp_user = cpu_state[CP_USER] + cpu_state[CP_NICE];
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cp_system = cpu_state[CP_SYS] + cpu_state[CP_INTR];
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cp_total = cpu_state[CP_IDLE] + cp_user + cp_system;
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*cpu_user = (cp_user > cp_user_old) ? (cp_user - cp_user_old) * 100 / (gdouble)(cp_total - cp_total_old) : 0;
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*cpu_system = (cp_system > cp_system_old) ? (cp_system - cp_system_old) * 100 / (gdouble)(cp_total - cp_total_old) : 0;
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}
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return TRUE;
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}
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static gboolean
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get_task_details (kvm_t *kd, struct kinfo_proc *kp, Task *task)
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{
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struct passwd *pw;
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char **argv;
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int i;
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task->pid = kp->ki_pid;
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task->ppid = kp->ki_ppid;
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task->cpu_user = 100 * ((double)kp->ki_pctcpu / FSCALE);
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task->cpu_system = 0;
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task->vsz = kp->ki_size;
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task->rss = kp->ki_rssize * getpagesize ();
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pw = getpwuid (kp->ki_uid);
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task->uid = kp->ki_uid;
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g_strlcpy (task->uid_name, (pw != NULL) ? pw->pw_name : "nobody", sizeof (task->uid_name));
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task->prio = (gushort)kp->ki_nice;
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g_strlcpy (task->name, kp->ki_comm, 256);
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task->cmdline[0] = '\0';
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if ((argv = kvm_getargv (kd, kp, 1024)) != NULL)
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{
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for (i = 0; argv[i] != NULL; i++)
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{
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g_strlcat (task->cmdline, argv[i], 1024);
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g_strlcat (task->cmdline, " ", 1024);
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}
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}
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else
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{
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g_strlcpy (task->cmdline, kp->ki_comm, 1024);
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}
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i = 0;
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switch (kp->ki_stat)
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{
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case SSTOP:
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task->state[i] = 'T';
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break;
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case SSLEEP:
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if (kp->ki_tdflags & TDF_SINTR)
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task->state[i] = kp->ki_slptime >= MAXSLP ? 'I' : 'S';
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else
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task->state[i] = 'D';
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break;
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case SRUN:
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case SIDL:
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task->state[i] = 'R';
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break;
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case SWAIT:
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task->state[i] = 'W';
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break;
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case SLOCK:
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task->state[i] = 'L';
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break;
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case SZOMB:
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task->state[i] = 'Z';
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break;
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default:
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task->state[i] = '?';
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}
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i++;
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if (!(kp->ki_sflag & PS_INMEM))
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task->state[i++] = 'W';
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if (kp->ki_nice < NZERO)
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task->state[i++] = '<';
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else if (kp->ki_nice > NZERO)
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task->state[i++] = 'N';
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if (kp->ki_flag & P_TRACED)
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task->state[i++] = 'X';
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if (kp->ki_flag & P_WEXIT && kp->ki_stat != SZOMB)
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task->state[i++] = 'E';
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if (kp->ki_flag & P_PPWAIT)
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task->state[i++] = 'V';
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if ((kp->ki_flag & P_SYSTEM) || kp->ki_lock > 0)
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task->state[i++] = 'L';
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if (kp->ki_kiflag & KI_SLEADER)
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task->state[i++] = 's';
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if ((kp->ki_flag & P_CONTROLT) && kp->ki_pgid == kp->ki_tpgid)
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task->state[i++] = '+';
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if (kp->ki_flag & P_JAILED)
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task->state[i++] = 'J';
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task->state[i] = '\0';
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return TRUE;
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}
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gboolean
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get_task_list (GArray *task_list)
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{
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kvm_t *kd;
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struct kinfo_proc *kp;
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int cnt, i;
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Task task;
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if ((kd = kvm_openfiles (_PATH_DEVNULL, _PATH_DEVNULL, NULL, O_RDONLY, NULL)) == NULL)
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return FALSE;
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if ((kp = kvm_getprocs (kd, KERN_PROC_PROC, 0, &cnt)) == NULL)
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{
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kvm_close (kd);
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return FALSE;
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}
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for (i = 0; i < cnt; kp++, i++)
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{
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get_task_details (kd, kp, &task);
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g_array_append_val (task_list, task);
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}
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kvm_close (kd);
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return TRUE;
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}
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gboolean
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pid_is_sleeping (guint pid)
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{
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kvm_t *kd;
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struct kinfo_proc *kp;
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gint cnt;
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gboolean ret;
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if ((kd = kvm_openfiles (_PATH_DEVNULL, _PATH_DEVNULL, NULL, O_RDONLY, NULL)) == NULL)
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return FALSE;
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if ((kp = kvm_getprocs (kd, KERN_PROC_PID, pid, &cnt)) == NULL)
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{
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kvm_close (kd);
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return FALSE;
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}
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ret = (kp->ki_stat == SSTOP);
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kvm_close (kd);
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return ret;
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}
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