diff options
| -rw-r--r-- | IkiWiki/Plugin/external.pm | 2 | ||||
| -rw-r--r-- | doc/plugins/write/external.mdwn | 6 | ||||
| -rwxr-xr-x | plugins/externaldemo | 5 |
3 files changed, 10 insertions, 3 deletions
diff --git a/IkiWiki/Plugin/external.pm b/IkiWiki/Plugin/external.pm index e3504a30d..9c31a70eb 100644 --- a/IkiWiki/Plugin/external.pm +++ b/IkiWiki/Plugin/external.pm @@ -107,6 +107,7 @@ sub rpc_call ($$;@) { #{{{ } #}}} package IkiWiki::RPC::XML; +use Memoize; sub getvar ($$$) { #{{{ my $plugin=shift; @@ -142,6 +143,7 @@ sub inject ($@) { #{{{ IkiWiki::Plugin::external::rpc_call($plugin, $params{call}, @_) }; eval qq{*$params{name}=\$sub}; + memoize($params{name}) if $params{memoize}; return 1; } #}}} diff --git a/doc/plugins/write/external.mdwn b/doc/plugins/write/external.mdwn index ca30dd229..3612dd9c3 100644 --- a/doc/plugins/write/external.mdwn +++ b/doc/plugins/write/external.mdwn @@ -78,6 +78,9 @@ example, make an RPC call to `inject`. Pass it named parameters "name" and "Ikiwiki::rcs_update" and "call" is the RPC call ikiwiki will make whenever that function is run. +If the RPC call is memoizable, you can also pass a "memoize" parameter, set +to 1. + ## Limitations of XML RPC Since XML RPC can't pass around references to objects, it can't be used @@ -112,7 +115,8 @@ number of calls. Injecting a replacement for a commonly called ikiwiki function could result in a lot more RPC calls than expected and slow eveything down. `pagetitle`, for instance, is called about 100 times -per page build. +per page build. Memoizing injected functions whenever possible is a very +good idea. In general, use common sense, and your external plugin will probably perform ok. diff --git a/plugins/externaldemo b/plugins/externaldemo index 6bbced30e..1321a4bc5 100755 --- a/plugins/externaldemo +++ b/plugins/externaldemo @@ -102,8 +102,9 @@ sub import { # Here's an example of how to inject an arbitrary function into # ikiwiki. Ikiwiki will be able to call bob() just like any other - # function. - rpc_call("inject", name => "IkiWiki::bob", call => "bob"); + # function. Note use of automatic memoization. + rpc_call("inject", name => "IkiWiki::bob", call => "bob", + memoize => 1); # Here's an exmaple of how to access values in %IkiWiki::config. print STDERR "url is set to: ". |