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/cdefs.h>
31 __FBSDID("$FreeBSD$");
32 
33 #include <sys/param.h>
34 #include <sys/sysctl.h>
35 #include <sys/user.h>
36 
37 #include <err.h>
38 #include <errno.h>
39 #include <libprocstat.h>
40 #include <stdio.h>
41 #include <stdlib.h>
42 #include <string.h>
43 
44 #include "procstat.h"
45 
46 void
47 procstat_threads(struct procstat *procstat, struct kinfo_proc *kipp)
48 {
49 	struct kinfo_proc *kip;
50 	unsigned int count, i;
51 	const char *str;
52 	char *threadid;
53 
54 	if ((procstat_opts & PS_OPT_NOHEADER) == 0)
55 		xo_emit("{T:/%5s %6s %-19s %-19s %2s %4s %-7s %-9s}\n", "PID",
56 		    "TID", "COMM", "TDNAME", "CPU", "PRI", "STATE", "WCHAN");
57 
58 	xo_emit("{ek:process_id/%d}", kipp->ki_pid);
59 	xo_emit("{e:command/%s}", strlen(kipp->ki_comm) ?
60 		    kipp->ki_comm : "-");
61 	xo_open_container("threads");
62 
63 	kip = procstat_getprocs(procstat, KERN_PROC_PID | KERN_PROC_INC_THREAD,
64 	    kipp->ki_pid, &count);
65 	if (kip == NULL)
66 		return;
67 	kinfo_proc_sort(kip, count);
68 	for (i = 0; i < count; i++) {
69 		kipp = &kip[i];
70 		asprintf(&threadid, "%d", kipp->ki_tid);
71 		if (threadid == NULL)
72 			xo_errc(1, ENOMEM, "Failed to allocate memory in "
73 			    "procstat_threads()");
74 		xo_open_container(threadid);
75 		xo_emit("{dk:process_id/%5d/%d} ", kipp->ki_pid);
76 		xo_emit("{:thread_id/%6d/%d} ", kipp->ki_tid);
77 		xo_emit("{d:command/%-19s/%s} ", strlen(kipp->ki_comm) ?
78 		    kipp->ki_comm : "-");
79 		xo_emit("{:thread_name/%-19s/%s} ",
80 		    kinfo_proc_thread_name(kipp));
81 		if (kipp->ki_oncpu != 255)
82 			xo_emit("{:cpu/%3d/%d} ", kipp->ki_oncpu);
83 		else if (kipp->ki_lastcpu != 255)
84 			xo_emit("{:cpu/%3d/%d} ", kipp->ki_lastcpu);
85 		else
86 			xo_emit("{:cpu/%3s/%s} ", "-");
87 		xo_emit("{:priority/%4d/%d} ", kipp->ki_pri.pri_level);
88 		switch (kipp->ki_stat) {
89 		case SRUN:
90 			str = "run";
91 			break;
92 
93 		case SSTOP:
94 			str = "stop";
95 			break;
96 
97 		case SSLEEP:
98 			str = "sleep";
99 			break;
100 
101 		case SLOCK:
102 			str = "lock";
103 			break;
104 
105 		case SWAIT:
106 			str = "wait";
107 			break;
108 
109 		case SZOMB:
110 			str = "zomb";
111 			break;
112 
113 		case SIDL:
114 			str = "idle";
115 			break;
116 
117 		default:
118 			str = "??";
119 			break;
120 		}
121 		xo_emit("{:run_state/%-7s/%s} ", str);
122 		if (kipp->ki_kiflag & KI_LOCKBLOCK) {
123 			xo_emit("{:lock_name/*%-8s/%s} ",
124 			    strlen(kipp->ki_lockname) ?
125 			    kipp->ki_lockname : "-");
126 		} else {
127 			xo_emit("{:wait_channel/%-9s/%s} ",
128 			    strlen(kipp->ki_wmesg) ? kipp->ki_wmesg : "-");
129 		}
130 		xo_close_container(threadid);
131 		free(threadid);
132 		xo_emit("\n");
133 	}
134 	xo_close_container("threads");
135 	procstat_freeprocs(procstat, kip);
136 }
137