70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
#include "module.h"
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#include "modulemanager.h"
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#include <framework/otml/otml.h>
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#include <framework/luascript/luainterface.h>
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void Module::discover(const OTMLNodePtr& moduleNode)
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{
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const static std::string none = "none";
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m_description = moduleNode->valueAt("description", none);
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m_author = moduleNode->valueAt("author", none);
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m_website = moduleNode->valueAt("website", none);
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m_version = moduleNode->valueAt("version", none);
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m_autoLoad = moduleNode->valueAt<bool>("autoLoad", false);
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if(OTMLNodePtr node = moduleNode->get("dependencies")) {
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for(const OTMLNodePtr& tmp : node->children())
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m_dependencies.push_back(tmp->value());
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}
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// set onLoad callback
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if(OTMLNodePtr node = moduleNode->get("onLoad")) {
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g_lua.loadFunction(node->value<std::string>(), "@" + node->source() + "[" + node->tag() + "]");
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g_lua.useValue();
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m_loadCallback = g_lua.polymorphicPop<BooleanCallback>();
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}
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// set onUnload callback
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if(OTMLNodePtr node = moduleNode->get("onUnload")) {
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g_lua.loadFunction(node->value<std::string>(), "@" + node->source() + "[" + node->tag() + "]");
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g_lua.useValue();
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m_unloadCallback = g_lua.polymorphicPop<SimpleCallback>();
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}
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}
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bool Module::load()
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{
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try {
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for(const std::string& depName : m_dependencies) {
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ModulePtr dep = g_modules.getModule(depName);
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if(!dep)
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throw std::runtime_error(fw::mkstr("could not find module dependency '", depName ,"'"));
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if(!dep->isLoaded() && !dep->load())
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throw std::runtime_error(fw::mkstr("dependency '", depName, "' has failed to load"));
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}
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if(m_loadCallback) {
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m_loaded = m_loadCallback();
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if(!m_loaded)
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throw std::runtime_error("module onLoad event returned false");
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}
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logInfo("Loaded module '", m_name, "'");
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return true;
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} catch(std::exception& e) {
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logError("ERROR: failed to load module '", m_name, "': ", e.what());
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return false;
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}
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}
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void Module::unload()
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{
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if(m_loaded) {
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if(m_unloadCallback)
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m_unloadCallback();
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m_loaded = false;
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}
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}
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