int postConfig()

in modules/server/mod-eval.hpp [1376:1433]

• 41 lines of code
• 8 McCabe index (conditional complexity)

int postConfig(apr_pool_t *p, unused apr_pool_t *plog, unused apr_pool_t *ptemp, server_rec *s) {
    extern const value applyLifecycle(const list<value>&);

    const gc_scoped_pool sp(p);

    // Get the server configuration and determine the server name
    ServerConf& sc = httpd::serverConf<ServerConf>(s, &mod_tuscany_eval);
    debug(httpd::serverName(s), "modeval::postConfig::serverName");
    debug(sc.contribc.contribPath, "modeval::postConfig::contribPath");
    debug(sc.contribc.composName, "modeval::postConfig::composName");

    // Count the calls to post config
    const string k("tuscany::modeval::postConfig");
    const long int count = (long int)httpd::userData(k, s);
    httpd::putUserData(k, (void*)(count + 1), s);

    // Count == 0, do nothing as post config is always called twice,
    // count == 1 is the first start, count > 1 is a restart
    if (count == 0)
        return OK;

    if (count == 1) {
        // Chdir to the deployed contribution
        if (chdir(c_str(sc.contribc.contribPath)) != 0) {
            mkfailure<bool>(string("Couldn't chdir to the deployed contribution: ") + sc.contribc.contribPath);
            return -1;
        }

        debug("modeval::postConfig::start");
        const failable<value> r = failableResult(applyLifecycle(mklist<value>("start")));
        if (!hasContent(r))
            return -1;
        debug(content(r), "modeval::postConfig::setlifecycle");
        sc.lifecycle = content(r);
    }
    if (count > 1) {
        debug("modeval::postConfig::restart");
        const failable<value> r = failableResult(applyLifecycle(mklist<value>("restart")));
        if (!hasContent(r))
            return -1;
        debug(content(r), "modeval::postConfig::setlifecycle");
        sc.lifecycle = content(r);
    }

    // Configure the deployed components
    const failable<Composite> compos = confComponents(sc.contribc.contribPath, sc.contribc.composName, nilValue, emptyString, sc.compos.impls, (value)sc.lifecycle, sc.sslc, sc.timeout);
    if (!hasContent(compos)) {
        cfailure << "[Tuscany] Due to one or more errors mod_tuscany_eval loading failed. Causing apache to stop loading." << endl;
        return -1;
    }
    sc.compos = content(compos);

    // Register a cleanup callback, called when the server is stopped or restarted
    apr_pool_pre_cleanup_register(p, (void*)&sc, serverCleanup);

    // Merge the configuration into the virtual hosts
    return postConfigMerge(sc, s->next);
}