xref: /freebsd/usr.bin/procstat/procstat_threads.c (revision 9162f64b58d01ec01481d60b6cdc06ffd8e8c7fc)
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 <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, name[4];
46 	unsigned int i;
47 	const char *str;
48 	size_t len;
49 
50 	if (!hflag)
51 		printf("%5s %6s %-16s %-16s %2s %4s %-7s %-9s\n", "PID",
52 		    "TID", "COMM", "TDNAME", "CPU", "PRI", "STATE", "WCHAN");
53 
54 	/*
55 	 * We need to re-query for thread information, so don't use *kipp.
56 	 */
57 	name[0] = CTL_KERN;
58 	name[1] = KERN_PROC;
59 	name[2] = KERN_PROC_PID | KERN_PROC_INC_THREAD;
60 	name[3] = pid;
61 
62 	len = 0;
63 	error = sysctl(name, 4, NULL, &len, NULL, 0);
64 	if (error < 0 && errno != ESRCH) {
65 		warn("sysctl: kern.proc.pid: %d", pid);
66 		return;
67 	}
68 	if (error < 0)
69 		return;
70 
71 	kip = malloc(len);
72 	if (kip == NULL)
73 		err(-1, "malloc");
74 
75 	if (sysctl(name, 4, kip, &len, NULL, 0) < 0) {
76 		warn("sysctl: kern.proc.pid: %d", pid);
77 		free(kip);
78 		return;
79 	}
80 
81 	kinfo_proc_sort(kip, len / sizeof(*kipp));
82 	for (i = 0; i < len / sizeof(*kipp); i++) {
83 		kipp = &kip[i];
84 		printf("%5d ", pid);
85 		printf("%6d ", kipp->ki_tid);
86 		printf("%-16s ", strlen(kipp->ki_comm) ?
87 		    kipp->ki_comm : "-");
88 		printf("%-16s ", (strlen(kipp->ki_ocomm) &&
89 		    (strcmp(kipp->ki_comm, kipp->ki_ocomm) != 0)) ?
90 		    kipp->ki_ocomm : "-");
91 		if (kipp->ki_oncpu != 255)
92 			printf("%3d ", kipp->ki_oncpu);
93 		else if (kipp->ki_lastcpu != 255)
94 			printf("%3d ", kipp->ki_lastcpu);
95 		else
96 			printf("%3s ", "-");
97 		printf("%4d ", kipp->ki_pri.pri_level);
98 		switch (kipp->ki_stat) {
99 		case SRUN:
100 			str = "run";
101 			break;
102 
103 		case SSTOP:
104 			str = "stop";
105 			break;
106 
107 		case SSLEEP:
108 			str = "sleep";
109 			break;
110 
111 		case SLOCK:
112 			str = "lock";
113 			break;
114 
115 		case SWAIT:
116 			str = "wait";
117 			break;
118 
119 		case SZOMB:
120 			str = "zomb";
121 			break;
122 
123 		case SIDL:
124 			str = "idle";
125 			break;
126 
127 		default:
128 			str = "??";
129 			break;
130 		}
131 		printf("%-7s ", str);
132 		if (kipp->ki_kiflag & KI_LOCKBLOCK) {
133 			printf("*%-8s ", strlen(kipp->ki_lockname) ?
134 			    kipp->ki_lockname : "-");
135 		} else {
136 			printf("%-9s ", strlen(kipp->ki_wmesg) ?
137 			    kipp->ki_wmesg : "-");
138 		}
139 		printf("\n");
140 	}
141 	free(kip);
142 }
143