327 lines
5.4 KiB
Groff
327 lines
5.4 KiB
Groff
.\" Manpage for mqrs
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.TH man 1 "7 July 2021" "0.1.1" "mqrs man page"
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.SH NAME
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mqrs \- Handle POSIX message queues
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.SH SYNOPSIS
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.B mqrs [\-h] [\-\-help] [\-v] [\-\-verbose] [\-V] [\-\-version] [SUBCOMMAND]
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.SH DESCRIPTION
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.B mqrs
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is a small cli program to handle message queues. Depending on which
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backend you want to use there are different subsets of
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subcommands. Following backends are supported:
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.B posix\
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and
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.B sysv\
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.
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If a command is clearly distinguishable from all the others, it does
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not have to be completed further.
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.SH OPTIONS
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.TP 8
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.B \-h, \-\-help
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Prints help information
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.TP 8
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.B \-v, \-\-verbose
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Produce verbose output, multiple -v options increase the verbosity
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(max. 3)
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.TP 8
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.B \-V, \-\-version
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Prints version information
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.SH POSIX MESSAGE QUEUE SUBCOMMANDS
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The POSIX backend supports six commands:
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.B create\
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,
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.B info\
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,
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.B list\
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,
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.B unlink\
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,
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.B send
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and
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.B recv
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.
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.SS posix create [FLAGS] [OPTIONS] \fI<QUEUE>\fP
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Create a new POSIX message queue.
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.TP 8
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.SS ARGS
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.RS
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.TP 8
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.B \fI<QUEUE>\fP
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Name of the new queue
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.RE
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.TP 8
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.SS FLAGS
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.RS
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.TP 8
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.B \-h, \-\-help
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Prints help information
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.TP 8
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.B \-v, \-\-verbose
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Produce verbose output
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.TP 8
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.SS OPTIONS
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.RS
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.TP 8
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.B \-c, \-\-capacity \fI<capacity>\fP
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Maximum number of messages in the queue
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.TP 8
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.B \-s, \-\-msgsize \fI<msgsize>\fP
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Message size in bytes
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.TP 8
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.B \-m, \-\-mode \fI<mode>\fP
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Permissions (octal) to create the queue with
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.RE
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.SS posix help [SUBCOMMAND]
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Prints this message or the help of the given subcommand.
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.TP 8
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.SS ARGS
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.RS
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.TP 8
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.B \fI<SUBCOMMAND>\fP
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Show help for \fISUBCOMMAND\fP
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.RE
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.SS posix info [FLAGS] \fI<QUEUE>\fP
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Print further information about an existing message queue.
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.TP 8
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.SS ARGS
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.RS
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.TP 8
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.B \fI<QUEUE>\fP
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Name of the queue
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.RE
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.TP 8
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.SS FLAGS
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.RS
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.TP 8
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.B \-h, \-\-help
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Prints help information
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.TP 8
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.B \-v, \-\-verbose
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Produce verbose output
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.RE
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.SS posix list [FLAGS]
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Print a list of all existing POSIX message queues.
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.TP 8
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.SS FLAGS
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.RS
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.TP 8
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.B \-h, \-\-help
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Prints help information
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.TP 8
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.B \-v, \-\-verbose
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Produce verbose output
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.TP 8
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.B \-a, \-\-all
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Print all available information
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.RE
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.SS posix recv [FLAGS] [OPTIONS] \fI<QUEUE>\fP
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Receive and print one or more messages message from a message queue.
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.TP 8
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.SS ARGS
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.RS
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.TP 8
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.B \fI<QUEUE>\fP
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Name of the queue
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.RE
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.TP 8
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.SS FLAGS
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.RS
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.TP 8
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.B \-f, \-\-follow
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Print messages as they are received
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.TP 8
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.B \-h, \-\-help
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Prints help information
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.TP 8
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.B \-n, \-\-non\-blocking
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Do not block
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.TP 8
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.B \-t, \-\-timestamp
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Print a timestamp before each message
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.TP 8
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.B \-v, \-\-verbose
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Produce verbose output
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.RE
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.TP 8
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.SS OPTIONS
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.RS
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.TP 8
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.B \-d, \-\-deadline \fI<deadline>\fP
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Deadline until messages are received (format: "%Y-%m-%d %H:%M:%S")
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.TP 8
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.B \-o, \-\-timeout \fI<timeout>\fP
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Timeout as for example in "5h 23min 42ms"
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.RE
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.SS posix send [FLAGS] [OPTIONS] \fI<QUEUE>\fP \fI<MESSAGE>\fP
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Send a message to a message queue.
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.TP 8
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.SS ARGS
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.RS
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.TP 8
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.B \fI<QUEUE>\fP
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Name of the queue
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.TP 8
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.B \fI<MESSAGE>\fP
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Message to be sent to the queue
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.RE
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.TP 8
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.SS FLAGS
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.RS
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.TP 8
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.B \-h, \-\-help
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Prints help information
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.TP 8
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.B \-n, \-\-non\-blocking
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Do not block
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.TP 8
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.B \-v, \-\-verbose
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Produce verbose output
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.RE
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.TP 8
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.SS OPTIONS
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.RS
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.TP 8
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.B \-d, \-\-deadline \fI<deadline>\fP
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Deadline until messages are received (format: "%Y-%m-%d %H:%M:%S")
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.TP 8
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.B \-p, \-\-priority \fI<priority>\fP
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Set a different priority than default, priority >= 0 [default: 0]
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.TP 8
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.B \-o, \-\-timeout \fI<timeout>\fP
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Timeout as for example in "5h 23min 42ms"
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.RE
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.SS posix unlink [FLAGS] \fI<QUEUE>\fP
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Delete an existing POSIX message queue.
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.TP 8
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.SS ARGS
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.RS
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.TP 8
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.B \fI<QUEUE>\fP
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Name of the queue
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.RE
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.TP 8
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.SS FLAGS
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.RS
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.TP 8
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.B \-h, \-\-help
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Prints help information
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.TP 8
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.B \-v, \-\-verbose
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Produce verbose output
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.RE
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.SH SYSV IPC MESSAGE QUEUE SUBCOMMANDS
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The SysV IPC backend supports four commands:
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.B create\
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,
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.B info\
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,
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.B list
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and
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.B unlink\
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.
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.SS sysv create [FLAGS] [OPTIONS] \fI<KEY>\fP
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Create a new SysV IPC message queue.
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.TP 8
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.SS ARGS
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.RS
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.TP 8
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.B \fI<KEY>\fP
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Key of the new queue
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.RE
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.TP 8
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.SS FLAGS
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.RS
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.TP 8
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.B \-h, \-\-help
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Prints help information
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.TP 8
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.B \-v, \-\-verbose
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Produce verbose output
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.TP 8
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.SS OPTIONS
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.RS
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.TP 8
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.B \-m, \-\-mode \fI<mode>\fP
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Permissions (octal) to create the queue with (default: 0644)
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.RE
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.SS sysv help [SUBCOMMAND]
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Prints this message or the help of the given subcommand.
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.TP 8
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.SS ARGS
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.RS
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.TP 8
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.B \fI<SUBCOMMAND>\fP
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Show help for \fISUBCOMMAND\fP
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.RE
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.SS sysv info [FLAGS] [OPTIONS]
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Print further information about an existing message queue. Exactly of
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the OPTION arguments is mandatory.
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.TP 8
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.SS FLAGS
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.RS
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.TP 8
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.B \-h, \-\-help
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Prints help information
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.TP 8
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.B \-v, \-\-verbose
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Produce verbose output
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.RE
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.TP 8
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.SS OPTIONS
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.RS
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.TP 8
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.B \-i, \-\-id \fI<id>\fP
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Id of the queue
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.TP 8
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.B \-k, \-\-key \fI<key>\fP
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Key of the queue
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.RE
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.SS sysv list [FLAGS]
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Print a list of all existing SysV IPC message queues.
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.TP 8
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.SS FLAGS
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.RS
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.TP 8
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.B \-h, \-\-help
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Prints help information
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.TP 8
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.B \-v, \-\-verbose
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Produce verbose output
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.RE
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.SS sysv unlink [FLAGS] [OPTIONS]
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Delete an existing SysV IPC message queue. It is mandatory to pass
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exactly one OPTION.
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.TP 8
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.SS ARGS
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.RS
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.TP 8
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.B \fI<KEY>\fP
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Key of the new queue
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.RE
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.TP 8
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.SS FLAGS
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.RS
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.TP 8
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.B \-h, \-\-help
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Prints help information
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.TP 8
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.B \-v, \-\-verbose
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Produce verbose output
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.TP 8
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.SS OPTIONS
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.RS
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.TP 8
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.B \-i, \-\-id \fI<id>\fP
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Id of the queue
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.TP 8
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.B \-k, \-\-key \fI<key>\fP
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Key of the queue
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.RE
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.SH SEE ALSO
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mq_overview(7), sysvipc(7)
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.SH BUGS
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No known bugs.
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.SH AUTHOR
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finga (mqrs@onders.org)
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