xref: /freebsd/usr.bin/procstat/procstat_threads.c (revision 6472ac3d8a86336899b6cfb789a4cd9897e3fab5)
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  * $FreeBSD$
27  */
28 
29 #include <sys/param.h>
30 #include <sys/sysctl.h>
31 #include <sys/user.h>
32 
33 #include <err.h>
34 #include <errno.h>
35 #include <libprocstat.h>
36 #include <stdio.h>
37 #include <stdlib.h>
38 #include <string.h>
39 
40 #include "procstat.h"
41 
42 void
43 procstat_threads(struct kinfo_proc *kipp)
44 {
45 	struct kinfo_proc *kip;
46 	int error, name[4];
47 	unsigned int i;
48 	const char *str;
49 	size_t len;
50 
51 	if (!hflag)
52 		printf("%5s %6s %-16s %-16s %2s %4s %-7s %-9s\n", "PID",
53 		    "TID", "COMM", "TDNAME", "CPU", "PRI", "STATE", "WCHAN");
54 
55 	/*
56 	 * We need to re-query for thread information, so don't use *kipp.
57 	 */
58 	name[0] = CTL_KERN;
59 	name[1] = KERN_PROC;
60 	name[2] = KERN_PROC_PID | KERN_PROC_INC_THREAD;
61 	name[3] = kipp->ki_pid;
62 
63 	len = 0;
64 	error = sysctl(name, 4, NULL, &len, NULL, 0);
65 	if (error < 0 && errno != ESRCH) {
66 		warn("sysctl: kern.proc.pid: %d", kipp->ki_pid);
67 		return;
68 	}
69 	if (error < 0)
70 		return;
71 
72 	kip = malloc(len);
73 	if (kip == NULL)
74 		err(-1, "malloc");
75 
76 	if (sysctl(name, 4, kip, &len, NULL, 0) < 0) {
77 		warn("sysctl: kern.proc.pid: %d", kipp->ki_pid);
78 		free(kip);
79 		return;
80 	}
81 
82 	kinfo_proc_sort(kip, len / sizeof(*kipp));
83 	for (i = 0; i < len / sizeof(*kipp); i++) {
84 		kipp = &kip[i];
85 		printf("%5d ", kipp->ki_pid);
86 		printf("%6d ", kipp->ki_tid);
87 		printf("%-16s ", strlen(kipp->ki_comm) ?
88 		    kipp->ki_comm : "-");
89 		printf("%-16s ", (strlen(kipp->ki_tdname) &&
90 		    (strcmp(kipp->ki_comm, kipp->ki_tdname) != 0)) ?
91 		    kipp->ki_tdname : "-");
92 		if (kipp->ki_oncpu != 255)
93 			printf("%3d ", kipp->ki_oncpu);
94 		else if (kipp->ki_lastcpu != 255)
95 			printf("%3d ", kipp->ki_lastcpu);
96 		else
97 			printf("%3s ", "-");
98 		printf("%4d ", kipp->ki_pri.pri_level);
99 		switch (kipp->ki_stat) {
100 		case SRUN:
101 			str = "run";
102 			break;
103 
104 		case SSTOP:
105 			str = "stop";
106 			break;
107 
108 		case SSLEEP:
109 			str = "sleep";
110 			break;
111 
112 		case SLOCK:
113 			str = "lock";
114 			break;
115 
116 		case SWAIT:
117 			str = "wait";
118 			break;
119 
120 		case SZOMB:
121 			str = "zomb";
122 			break;
123 
124 		case SIDL:
125 			str = "idle";
126 			break;
127 
128 		default:
129 			str = "??";
130 			break;
131 		}
132 		printf("%-7s ", str);
133 		if (kipp->ki_kiflag & KI_LOCKBLOCK) {
134 			printf("*%-8s ", strlen(kipp->ki_lockname) ?
135 			    kipp->ki_lockname : "-");
136 		} else {
137 			printf("%-9s ", strlen(kipp->ki_wmesg) ?
138 			    kipp->ki_wmesg : "-");
139 		}
140 		printf("\n");
141 	}
142 	free(kip);
143 }
144