/// Wrapper around the constructor to do error checking and return NULL for errors
static ConfiguredHook* newHook(const UtlString& hookName,
const UtlString& hookFactoryName,
const UtlString& libName
)
{
ConfiguredHook* theNewHook = NULL;
if (! libName.isNull())
{
theNewHook = new ConfiguredHook(hookName, hookFactoryName, libName);
// check if the ConfiguredHook constructor actually managed to create a plug-in
if( !theNewHook->plugin() )
{
// an error happened while trying to create the plug-in -
// de-allocate the ConfiguredHook and return NULL to convey
// the failure to the caller.
delete theNewHook;
theNewHook = NULL;
}
}
else
{
OsSysLog::add(FAC_KERNEL, PRI_CRIT,
"PluginHooks: no library configured for hook '%s': ignored",
hookName.data()
);
}
return theNewHook;
}
Plugin* PluginIterator::next(UtlString* name)
{
Plugin* nextPlugin = NULL;
// make sure that name is cleared if passed in case this is the last hook
if (name)
{
name->remove(0);
}
// step the parent iterator on the mConfiguredHooks list
ConfiguredHook* nextHook = static_cast<ConfiguredHook*>(mConfiguredHooksIterator());
if (nextHook)
{
nextHook->name(name); // return the name, if it's been asked for
nextPlugin = nextHook->plugin();
}
return nextPlugin;
}