xref: /freebsd/usr.bin/procstat/procstat_threads.c (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
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/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 
41 void
42 procstat_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 %-16s %-16s %2s %4s %-7s %-9s\n", "PID",
51 		    "TID", "COMM", "TDNAME", "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("%-16s ", strlen(kipp->ki_comm) ?
86 		    kipp->ki_comm : "-");
87 		printf("%-16s ", (strlen(kipp->ki_ocomm) &&
88 		    (strcmp(kipp->ki_comm, kipp->ki_ocomm) != 0)) ?
89 		    kipp->ki_ocomm : "-");
90 		if (kipp->ki_oncpu != 255)
91 			printf("%3d ", kipp->ki_oncpu);
92 		else if (kipp->ki_lastcpu != 255)
93 			printf("%3d ", kipp->ki_lastcpu);
94 		else
95 			printf("%3s ", "-");
96 		printf("%4d ", kipp->ki_pri.pri_level);
97 		switch (kipp->ki_stat) {
98 		case SRUN:
99 			str = "run";
100 			break;
101 
102 		case SSTOP:
103 			str = "stop";
104 			break;
105 
106 		case SSLEEP:
107 			str = "sleep";
108 			break;
109 
110 		case SLOCK:
111 			str = "lock";
112 			break;
113 
114 		case SWAIT:
115 			str = "wait";
116 			break;
117 
118 		case SZOMB:
119 			str = "zomb";
120 			break;
121 
122 		case SIDL:
123 			str = "idle";
124 			break;
125 
126 		default:
127 			str = "??";
128 			break;
129 		}
130 		printf("%-7s ", str);
131 		if (kipp->ki_kiflag & KI_LOCKBLOCK) {
132 			printf("*%-8s ", strlen(kipp->ki_lockname) ?
133 			    kipp->ki_lockname : "-");
134 		} else {
135 			printf("%-9s ", strlen(kipp->ki_wmesg) ?
136 			    kipp->ki_wmesg : "-");
137 		}
138 		printf("\n");
139 	}
140 	free(kip);
141 }
142