_port_query

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bergsma edited this page Sep 26, 2014 · 3 revisions

#port_query

###Sebd a general message query and wait for a reply.

Syntax

status = port_query ( id,data ) ;

Arguments

int id

The device Id. The device id must be port_assign()ed to a port handle created by port_open() or port_service().

list data

The data to send.

Return Value

str status

$ACKNOWLEDGE : The SECS message was sent and a reply SECS message received.

The STATUS variable is set to $ACKNOWLEDGE

%BOUNDS : Device Id is out of range.

The STATUS variable is set to %BOUNDS

%PORT : Device id 'x' is not assigned. Use port_assign(id,fd)

The STATUS variable is set to %PORT

%PORT : No port connection (through port 'x') exists for device 'y'

The STATUS variable is set to %PORT

%PORT : Failed to send port message

The STATUS variable is set to %PORT

Warnings

%BOUNDS : Device Id is out of range.
%PORT : Device id 'x' is not assigned. Use port_assign(id,fd)
%PORT : No port connection (through port 'x') exists for device 'y'
%PORT : Failed to send port message

Exceptions

%ARGUMENT: Invalid arguments. Usage: status = port_query ( id,data ) ;

Description

None

Examples

puts "Create an example for the function 'port_query'" ;

Related Links

None