usr.bin/procstat/procstat_cs.c

   1 /*-
   2  * Copyright (c) 2007 Robert N. M. Watson
   3  * Copyright (c) 2015 Allan Jude <allanjude@freebsd.org>
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25  * SUCH DAMAGE.
  26  *
  27  * $FreeBSD$
  28  */
  29
  30 #include <sys/param.h>
  31 #include <sys/cpuset.h>
  32 #include <sys/sbuf.h>
  33 #include <sys/sysctl.h>
  34 #include <sys/user.h>
  35
  36 #include <err.h>
  37 #include <errno.h>
  38 #include <libprocstat.h>
  39 #include <stdio.h>
  40 #include <stdlib.h>
  41 #include <string.h>
  42
  43 #include "procstat.h"
  44
  45 void
  46 procstat_cs(struct procstat *procstat, struct kinfo_proc *kipp)
  47 {
  48         cpusetid_t cs;
  49         cpuset_t mask;
  50         struct kinfo_proc *kip;
  51         struct sbuf *cpusetbuf;
  52         unsigned int count, i;
  53         int once, twice, lastcpu, cpu;
  54
  55         if ((procstat_opts & PS_OPT_NOHEADER) == 0)
  56                 xo_emit("{T:/%5s %6s %-19s %-19s %2s %4s %-7s}\n", "PID",
  57                     "TID", "COMM", "TDNAME", "CPU", "CSID", "CPU MASK");
  58
  59         kip = procstat_getprocs(procstat, KERN_PROC_PID | KERN_PROC_INC_THREAD,
  60             kipp->ki_pid, &count);
  61         if (kip == NULL)
  62                 return;
  63         kinfo_proc_sort(kip, count);
  64         for (i = 0; i < count; i++) {
  65                 kipp = &kip[i];
  66                 xo_emit("{k:process_id/%5d/%d} ", kipp->ki_pid);
  67                 xo_emit("{:thread_id/%6d/%d} ", kipp->ki_tid);
  68                 xo_emit("{:command/%-19s/%s} ", strlen(kipp->ki_comm) ?
  69                     kipp->ki_comm : "-");
  70                 xo_emit("{:thread_name/%-19s/%s} ",
  71                     kinfo_proc_thread_name(kipp));
  72                 if (kipp->ki_oncpu != 255)
  73                         xo_emit("{:cpu/%3d/%d} ", kipp->ki_oncpu);
  74                 else if (kipp->ki_lastcpu != 255)
  75                         xo_emit("{:cpu/%3d/%d} ", kipp->ki_lastcpu);
  76                 else
  77                         xo_emit("{:cpu/%3s/%s} ", "-");
  78                 if (cpuset_getid(CPU_LEVEL_CPUSET, CPU_WHICH_TID,
  79                     kipp->ki_tid, &cs) != 0) {
  80                         cs = CPUSET_INVALID;
  81                 }
  82                 xo_emit("{:cpu_set_id/%4d/%d} ", cs);
  83                 if ((cs != CPUSET_INVALID) &&
  84                     (cpuset_getaffinity(CPU_LEVEL_WHICH, CPU_WHICH_TID,
  85                     kipp->ki_tid, sizeof(mask), &mask) == 0)) {
  86                         lastcpu = -1;
  87                         once = 0;
  88                         twice = 0;
  89                         cpusetbuf = sbuf_new_auto();
  90                         for (cpu = 0; cpu < CPU_SETSIZE; cpu++) {
  91                                 if (CPU_ISSET(cpu, &mask)) {
  92                                         if (once == 0) {
  93                                                 sbuf_printf(cpusetbuf, "%d",
  94                                                     cpu);
  95                                                 once = 1;
  96                                         } else if (cpu == lastcpu + 1) {
  97                                                 twice = 1;
  98                                         } else if (twice == 1) {
  99                                                 sbuf_printf(cpusetbuf, "-%d,%d",
 100                                                     lastcpu, cpu);
 101                                                 twice = 0;
 102                                         } else
 103                                                 sbuf_printf(cpusetbuf, ",%d",
 104                                                     cpu);
 105                                         lastcpu = cpu;
 106                                 }
 107                         }
 108                         if (once && twice)
 109                                 sbuf_printf(cpusetbuf, "-%d", lastcpu);
 110                         if (sbuf_finish(cpusetbuf) != 0)
 111                                 xo_err(1, "Could not generate output");
 112                         xo_emit("{:cpu_set/%s}", sbuf_data(cpusetbuf));
 113                         sbuf_delete(cpusetbuf);
 114                 }
 115                 xo_emit("\n");
 116         }
 117         procstat_freeprocs(procstat, kip);
 118 }