# HG changeset patch
# User Matthew Wild <mwild1@gmail.com>
# Date 1335035343 -3600
# Node ID c1602c07d14dab3023bae9bd84c0ce1fbf4707ea
# Parent  2b3ee52fba32c64209cf30d75b47d2d02c128041
modulemanager: Support for shared modules - function module.add_host(host_module) in a global module

diff -r 2b3ee52fba32 -r c1602c07d14d core/modulemanager.lua
--- a/core/modulemanager.lua	Sat Apr 21 20:04:07 2012 +0100
+++ b/core/modulemanager.lua	Sat Apr 21 20:09:03 2012 +0100
@@ -132,6 +132,21 @@
 		log("warn", "%s is already loaded for %s, so not loading again", module_name, host);
 		return nil, "module-already-loaded";
 	elseif modulemap["*"][module_name] then
+		local mod = modulemap["*"][module_name];
+		if module_has_method(mod, "add_host") then
+			local _log = logger.init(host..":"..module_name);
+			local host_module_api = setmetatable({
+				host = host, event_handlers = {}, items = {};
+				_log = _log, log = function (self, ...) return _log(...); end;
+			},{
+				__index = modulemap["*"][module_name].module;
+			});
+			local ok, result, module_err = call_module_method(mod, "add_host", host_module_api);
+			if not ok or result == false then return nil, ok and module_err or result; end
+			local host_module = setmetatable({ module = host_module_api }, { __index = mod });
+			modulemap[host][module_name] = host_module;
+			return host_module;
+		end
 		return nil, "global-module-already-loaded";
 	end