2 .\" Copyright (c) 1994 SigmaSoft, Th. Lockert
3 .\" All rights reserved.
5 .\" Redistribution and use in source and binary forms, with or without
6 .\" modification, are permitted provided that the following conditions
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13 .\" 3. All advertising materials mentioning features or use of this software
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15 .\" This product includes software developed by SigmaSoft, Th. Lockert.
16 .\" 3. The name of the author may not be used to endorse or promote products
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37 .Nd report System V interprocess communication facilities status
47 utility provides information on System V interprocess communication
48 (IPC) facilities on the system.
50 The options are as follows:
53 Show the maximum amount of information possible when
54 displaying active semaphores, message queues,
55 and shared memory segments.
56 (This is shorthand for specifying the
65 Show the maximum allowed sizes for active semaphores, message queues,
66 and shared memory segments.
68 .Dq maximum allowed size
69 is the maximum number of bytes in a message on a message queue,
70 the size of a shared memory segment,
71 or the number of semaphores in a set of semaphores.
73 Show the creator's name and group for active semaphores, message queues,
74 and shared memory segments.
76 Display information about active shared memory segments.
78 Show outstanding usage for active message queues,
79 and shared memory segments.
82 is the number of messages in a message queue, or the number
83 of processes attached to a shared memory segment.
85 Show the process ID information for active semaphores, message queues,
86 and shared memory segments.
88 .Dq process ID information
89 is the last process to send a message to or receive a message from
91 the process that created a semaphore, or the last process to attach
92 or detach a shared memory segment.
94 Display information about active message queues.
96 Display information about active semaphores.
98 Show access times for active semaphores, message queues,
99 and shared memory segments.
100 The access times is the time
101 of the last control operation on an IPC object,
102 the last send or receive of a message,
103 the last attach or detach of a shared memory segment,
104 or the last operation on a semaphore.
106 Extract values associated with the name list from the specified
107 core instead of the default
112 Display system information about shared memory.
114 Extract the name list from the specified system instead of the
116 .Pa /boot/kernel/kernel .
120 Display system information about messages queues.
122 Display system information about semaphores.
124 Display system information about shared memory, message queues
129 interface instead of the
131 interface to extract the required information.
134 is to operate on the running system,
137 will require read privileges to
140 Display information about IPC mechanisms owned by
142 User specification can be in the form of a numeric UID or
154 options are specified, information about all active IPC facilities is
157 System data structures may change while
159 is running; the output of
161 is not guaranteed to be consistent.
163 This manual page is woefully incomplete, because it does not
164 at all attempt to explain the information printed by
167 .Bl -tag -width /boot/kernel/kernel -compact
169 default kernel memory
170 .It Pa /boot/kernel/kernel
171 default system name list
176 .An Thorsten Lockert Aq tholo@sigmasoft.com