procstat_threads.c revision 174199 
1/*-
2 * Copyright (c) 2007 Robert N. M. Watson
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/usr.bin/procstat/procstat_threads.c 174199 2007-12-02 23:31:45Z rwatson $
27 */
28
29#include <sys/types.h>
30#include <sys/sysctl.h>
31#include <sys/user.h>
32
33#include <err.h>
34#include <errno.h>
35#include <stdio.h>
36#include <stdlib.h>
37#include <string.h>
38
39#include "procstat.h"
40
41void
42procstat_threads(pid_t pid, struct kinfo_proc *kipp)
43{
44	struct kinfo_proc *kip;
45	int error, i, name[4];
46	const char *str;
47	size_t len;
48
49	if (!hflag)
50		printf("%5s %6s %-20s %2s %4s %-7s %-9s\n", "PID", "TID",
51		    "COMM", "CPU", "PRI", "STATE", "WCHAN");
52
53	/*
54	 * We need to re-query for thread information, so don't use *kipp.
55	 */
56	name[0] = CTL_KERN;
57	name[1] = KERN_PROC;
58	name[2] = KERN_PROC_PID | KERN_PROC_INC_THREAD;
59	name[3] = pid;
60
61	len = 0;
62	error = sysctl(name, 4, NULL, &len, NULL, 0);
63	if (error < 0 && errno != ESRCH) {
64		warn("sysctl: kern.proc.pid: %d", pid);
65		return;
66	}
67	if (error < 0)
68		return;
69
70	kip = malloc(len);
71	if (kip == NULL)
72		err(-1, "malloc");
73
74	if (sysctl(name, 4, kip, &len, NULL, 0) < 0) {
75		warn("sysctl: kern.proc.pid: %d", pid);
76		free(kip);
77		return;
78	}
79
80	kinfo_proc_sort(kip, len / sizeof(*kipp));
81	for (i = 0; i < len / sizeof(*kipp); i++) {
82		kipp = &kip[i];
83		printf("%5d ", pid);
84		printf("%6d ", kipp->ki_tid);
85		printf("%-20s ", strlen(kipp->ki_comm) ?
86		    kipp->ki_comm : "-");
87		if (kipp->ki_oncpu != 255)
88			printf("%3d ", kipp->ki_oncpu);
89		else if (kipp->ki_lastcpu != 255)
90			printf("%3d ", kipp->ki_lastcpu);
91		else
92			printf("%3s ", "-");
93		printf("%4d ", kipp->ki_pri.pri_level);
94		switch (kipp->ki_stat) {
95		case SRUN:
96			str = "run";
97			break;
98
99		case SSTOP:
100			str = "stop";
101			break;
102
103		case SSLEEP:
104			str = "sleep";
105			break;
106
107		case SLOCK:
108			str = "lock";
109			break;
110
111		case SWAIT:
112			str = "wait";
113			break;
114
115		case SZOMB:
116			str = "zomb";
117			break;
118
119		case SIDL:
120			str = "idle";
121			break;
122
123		default:
124			str = "??";
125			break;
126		}
127		printf("%-7s ", str);
128		if (kipp->ki_kiflag & KI_LOCKBLOCK) {
129			printf("*%-8s ", strlen(kipp->ki_lockname) ?
130			    kipp->ki_lockname : "-");
131		} else {
132			printf("%-9s ", strlen(kipp->ki_wmesg) ?
133			    kipp->ki_wmesg : "-");
134		}
135		printf("\n");
136	}
137	free(kip);
138}
139