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