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<?xml version="1.0"?> |
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<!DOCTYPE methoddef SYSTEM "rpc-method.dtd"> |
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<!-- |
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Generated automatically by etc\make_method v1.09, Fri May 31 04:39:52 2002 |
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|
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Any changes made here will be lost. |
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--> |
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<methoddef> |
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<name>system.multicall</name> |
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<version>1.0</version> |
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<signature>array array</signature> |
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<help> |
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Execute a set of one or more procedure calls on the server as a single |
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request. The only supported call signature takes an ARRAY of STRUCT values. |
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Each STRUCT should have two members: |
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|
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methodName The name of the method/routine to invoke as a STRING |
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params An ARRAY of the parameters to pass to the routine |
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|
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If the "params" member is absent, a call with no parameters is assumed. The |
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ARRAY of parameters will be expanded prior to the call, otherwise all the |
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called routines would have to have a signature allowing for a single ARRAY |
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input. Thus, any routine taking such an input will have to nest it within an |
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outer containing ARRAY. |
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|
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The return value is an ARRAY of the return values from the calls, or a fault |
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response if one of the calls failed. Because the specification does not allow |
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for faults as first-class datatypes, all other results are discarded upon an |
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error, and any remaining calls will not get executed. |
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</help> |
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<code language="perl"> |
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<![CDATA[ |
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#!perl |
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############################################################################### |
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# |
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# Sub Name: multicall |
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# |
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# Description: Execute multiple method calls in a single request |
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# |
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# Arguments: NAME IN/OUT TYPE DESCRIPTION |
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# $srv in ref Server object instance |
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# $list in ref List of struct's with the call |
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# data within. |
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# |
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# Globals: None. |
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# |
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# Environment: None. |
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# |
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# Returns: Success: listref |
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# Failure: fault object |
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# |
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############################################################################### |
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sub multicall |
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{ |
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use strict; |
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|
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my $srv = shift; |
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my $list = shift; |
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|
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my ($call, $subname, $params, $result, @results); |
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|
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my $name = $srv->{method_name}; |
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|
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for $call (@$list) |
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{ |
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unless (ref($call) eq 'HASH') |
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{ |
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return RPC::XML::fault->new(200, |
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"$name: One of the array elements " . |
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'passed in was not a struct'); |
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} |
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|
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return RPC::XML::fault->new(310, |
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"$name: Request was missing required " . |
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'"methodName" member') |
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unless ($subname = $call->{methodName}); |
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return RPC::XML::fault->new(310, |
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"$name: Recursive calling of $name not " . |
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'allowed') |
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if ($subname eq $name); |
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|
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$params = $call->{params} || []; |
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return RPC::XML::fault->new(200, |
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"$name: Request's value for \"params\" " . |
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'was not an array') |
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unless (ref($params) eq 'ARRAY'); |
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|
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$result = $srv->dispatch([ $subname, @$params ]); |
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return $result if $result->is_fault; |
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|
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push @results, $result->value; |
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} |
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|
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\@results; |
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} |
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|
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__END__ |
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]]></code> |
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</methoddef> |
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