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1.1 nbrk 1: /*
2: * Copyright (c) 2007, Kohsuke Ohtani
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: * 3. Neither the name of the author nor the names of any co-contributors
14: * may be used to endorse or promote products derived from this software
15: * without specific prior written permission.
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 <prex/prex.h>
31: #include <server/object.h>
32: #include <server/stdmsg.h>
33: #include <server/proc.h>
34:
35: #include <unistd.h>
36: #include <stdlib.h>
37: #include <errno.h>
38: #include <stdio.h>
39:
40: #ifdef CMDBOX
41: #define main(argc, argv) ps_main(argc, argv)
42: #endif
43:
44: #define PSFX 0x01
45: #define PSFL 0x02
46:
47: struct info_proc {
48: pid_t pid;
49: pid_t ppid;
50: int stat;
51: };
52:
53: static object_t procobj;
54:
55: static int
56: pstat(task_t task, struct info_proc *ip)
57: {
58: static struct msg m;
59: int rc;
60:
61: do {
62: m.hdr.code = PS_PSTAT;
63: m.data[0] = task;
64: rc = msg_send(procobj, &m, sizeof(m));
65: } while (rc == EINTR);
66:
67: if (rc || m.hdr.status) {
68: ip->pid = -1;
69: ip->ppid = -1;
70: ip->stat = 1;
71: return -1;
72: }
73:
74: ip->pid = m.data[0];
75: ip->ppid = m.data[1];
76: ip->stat = m.data[2];
77: return 0;
78: }
79:
80: int
81: main(int argc, char *argv[])
82: {
83: int ch, rc, ps_flag = 0;
84: static struct info_thread it;
85: static struct info_proc ip;
86: pid_t last_pid = -2;
87: char stat[][2] = { "R", "Z", "S" };
88: char pol[][5] = { "FIFO", "RR " };
89:
90: while ((ch = getopt(argc, argv, "lx")) != -1)
91: switch(ch) {
92: case 'x':
93: ps_flag |= PSFX;
94: break;
95: case 'l':
96: ps_flag |= PSFL;
97: break;
98:
99: case '?':
100: default:
101: fprintf(stderr, "usage: ps [-lx]\n");
102: exit(1);
103: }
104: argc -= optind;
105: argv += optind;
106:
107: if (object_lookup(OBJNAME_PROC, &procobj))
108: exit(1);
109:
110: if (ps_flag & PSFL)
1.1.1.1.2.1! nbrk 111: printf(" PID PPID PRI STAT POL TIME WCHAN CMD\n");
1.1 nbrk 112: else
113: printf(" PID TIME CMD\n");
114:
115: rc = 0;
116: it.cookie = 0;
117: do {
118: /*
119: * Get thread info from kernel.
120: */
121: rc = sys_info(INFO_THREAD, &it);
122: if (!rc) {
123: /*
124: * Get process info from server.
125: */
126: if (pstat(it.task, &ip) && !(ps_flag & PSFX))
127: continue;
128:
129: if (ps_flag & PSFL) {
130: if (ip.pid == -1)
131: printf(" - -"); /* kernel */
132: else
133: printf("%5d %5d", ip.pid, ip.ppid);
134:
1.1.1.1.2.1! nbrk 135: printf(" %3d %s %s %8d "
1.1 nbrk 136: "%-11s %-11s\n",
137: it.prio, stat[ip.stat-1],
1.1.1.1.2.1! nbrk 138: pol[it.policy],
! 139: it.time, it.slpevt, it.taskname);
1.1 nbrk 140: } else {
141: if (!(ps_flag & PSFX) && (ip.pid == last_pid))
142: continue;
143: if (ip.pid == -1)
144: printf(" -"); /* kernel */
145: else
146: printf("%5d", ip.pid);
147:
1.1.1.1.2.1! nbrk 148: printf(" %8d %-11s\n", it.time, it.taskname);
1.1 nbrk 149: last_pid = ip.pid;
150: }
151: }
152: } while (rc == 0);
153: exit(0);
154: }