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95 lines
3.2 KiB
Groff
95 lines
3.2 KiB
Groff
.\"
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.\" dbus-send manual page.
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.\" Copyright (C) 2003 Red Hat, Inc.
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.\"
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.TH dbus-send 1
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.SH NAME
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dbus-send \- Send a message to a message bus
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.SH SYNOPSIS
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.PP
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.B dbus-send
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[\-\-system | \-\-session] [\-\-dest=NAME] [\-\-print-reply]
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[\-\-type=TYPE] <destination object path> <message name> [contents ...]
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.SH DESCRIPTION
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The \fIdbus-send\fP command is used to send a message to a D-Bus message
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bus. See http://www.freedesktop.org/software/dbus/ for more
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information about the big picture.
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.PP
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There are two well-known message buses: the systemwide message bus
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(installed on many systems as the "messagebus" service) and the
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per-user-login-session message bus (started each time a user logs in).
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The \-\-system and \-\-session options direct \fIdbus-send\fP to send
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messages to the system or session buses respectively. If neither is
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specified, \fIdbus-send\fP sends to the session bus.
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.PP
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Nearly all uses of \fIdbus-send\fP must provide the \-\-dest argument
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which is the name of a connection on the bus to send the message to. If
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\-\-dest is omitted, no destination is set.
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.PP
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The object path and the name of the message to send must always be
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specified. Following arguments, if any, are the message contents
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(message arguments). These are given as type-specified values and
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may include containers (arrays, dicts, and variants) as described below.
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.nf
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<contents> ::= <item> | <container> [ <item> | <container>...]
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<item> ::= <type>:<value>
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<container> ::= <array> | <dict> | <variant>
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<array> ::= array:<type>:<value>[,<value>...]
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<dict> ::= dict:<type>:<type>:<key>,<value>[,<key>,<value>...]
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<variant> ::= variant:<type>:<value>
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<type> ::= string | int16 | uint 16 | int32 | uint32 | int64 | uint64 | double | byte | boolean | objpath
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.fi
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D-Bus supports more types than these, but \fIdbus-send\fP currently
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does not. Also, \fIdbus-send\fP does not permit empty containers
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or nested containers (e.g. arrays of variants).
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.PP
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Here is an example invocation:
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.nf
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dbus-send \-\-dest=org.freedesktop.ExampleName \\
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/org/freedesktop/sample/object/name \\
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org.freedesktop.ExampleInterface.ExampleMethod \\
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int32:47 string:'hello world' double:65.32 \\
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array:string:"1st item","next item","last item" \\
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dict:string:int32:"one",1,"two",2,"three",3 \\
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variant:int32:-8 \\
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objpath:/org/freedesktop/sample/object/name
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.fi
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Note that the interface is separated from a method or signal
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name by a dot, though in the actual protocol the interface
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and the interface member are separate fields.
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.SH OPTIONS
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The following options are supported:
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.TP
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.I "--dest=NAME"
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Specify the name of the connection to receive the message.
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.TP
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.I "--print-reply"
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Block for a reply to the message sent, and print any reply received.
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.TP
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.I "--system"
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Send to the system message bus.
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.TP
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.I "--session"
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Send to the session message bus. (This is the default.)
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.TP
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.I "--type=TYPE"
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Specify "method_call" or "signal" (defaults to "signal").
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.SH AUTHOR
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dbus-send was written by Philip Blundell.
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.SH BUGS
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Please send bug reports to the D-Bus mailing list or bug tracker,
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see http://www.freedesktop.org/software/dbus/
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