xref: /freebsd/usr.bin/procstat/procstat_threads.c (revision fd45b686f9d92f583366c75b22c04c7ee49709c0)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2007 Robert N. M. Watson
5  * Copyright (c) 2015 Allan Jude <allanjude@freebsd.org>
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #include <sys/param.h>
31 #include <sys/sysctl.h>
32 #include <sys/user.h>
33 
34 #include <err.h>
35 #include <errno.h>
36 #include <libprocstat.h>
37 #include <stdio.h>
38 #include <stdlib.h>
39 #include <string.h>
40 
41 #include "procstat.h"
42 
43 void
44 procstat_threads(struct procstat *procstat, struct kinfo_proc *kipp)
45 {
46 	struct kinfo_proc *kip;
47 	unsigned int count, i;
48 	const char *str;
49 	char *threadid;
50 
51 	if ((procstat_opts & PS_OPT_NOHEADER) == 0)
52 		xo_emit("{T:/%5s %6s %-19s %-19s %2s %4s %-7s %-9s}\n", "PID",
53 		    "TID", "COMM", "TDNAME", "CPU", "PRI", "STATE", "WCHAN");
54 
55 	xo_emit("{ek:process_id/%d}", kipp->ki_pid);
56 	xo_emit("{e:command/%s}", strlen(kipp->ki_comm) ?
57 		    kipp->ki_comm : "-");
58 	xo_open_container("threads");
59 
60 	kip = procstat_getprocs(procstat, KERN_PROC_PID | KERN_PROC_INC_THREAD,
61 	    kipp->ki_pid, &count);
62 	if (kip == NULL)
63 		return;
64 	kinfo_proc_sort(kip, count);
65 	for (i = 0; i < count; i++) {
66 		kipp = &kip[i];
67 		asprintf(&threadid, "%d", kipp->ki_tid);
68 		if (threadid == NULL)
69 			xo_errc(1, ENOMEM, "Failed to allocate memory in "
70 			    "procstat_threads()");
71 		xo_open_container(threadid);
72 		xo_emit("{dk:process_id/%5d/%d} ", kipp->ki_pid);
73 		xo_emit("{:thread_id/%6d/%d} ", kipp->ki_tid);
74 		xo_emit("{d:command/%-19s/%s} ", strlen(kipp->ki_comm) ?
75 		    kipp->ki_comm : "-");
76 		xo_emit("{:thread_name/%-19s/%s} ",
77 		    kinfo_proc_thread_name(kipp));
78 		if (kipp->ki_oncpu != 255)
79 			xo_emit("{:cpu/%3d/%d} ", kipp->ki_oncpu);
80 		else if (kipp->ki_lastcpu != 255)
81 			xo_emit("{:cpu/%3d/%d} ", kipp->ki_lastcpu);
82 		else
83 			xo_emit("{:cpu/%3s/%s} ", "-");
84 		xo_emit("{:priority/%4d/%d} ", kipp->ki_pri.pri_level);
85 		switch (kipp->ki_stat) {
86 		case SRUN:
87 			str = "run";
88 			break;
89 
90 		case SSTOP:
91 			str = "stop";
92 			break;
93 
94 		case SSLEEP:
95 			str = "sleep";
96 			break;
97 
98 		case SLOCK:
99 			str = "lock";
100 			break;
101 
102 		case SWAIT:
103 			str = "wait";
104 			break;
105 
106 		case SZOMB:
107 			str = "zomb";
108 			break;
109 
110 		case SIDL:
111 			str = "idle";
112 			break;
113 
114 		default:
115 			str = "??";
116 			break;
117 		}
118 		xo_emit("{:run_state/%-7s/%s} ", str);
119 		if (kipp->ki_kiflag & KI_LOCKBLOCK) {
120 			xo_emit("{:lock_name/*%-8s/%s} ",
121 			    strlen(kipp->ki_lockname) ?
122 			    kipp->ki_lockname : "-");
123 		} else {
124 			xo_emit("{:wait_channel/%-9s/%s} ",
125 			    strlen(kipp->ki_wmesg) ? kipp->ki_wmesg : "-");
126 		}
127 		xo_close_container(threadid);
128 		free(threadid);
129 		xo_emit("\n");
130 	}
131 	xo_close_container("threads");
132 	procstat_freeprocs(procstat, kip);
133 }
134