[mod_status] Add status.show_runtime action
Thomas Porzelt
parent
8a0665aa53
commit
f0d5c9e789
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@ -11,16 +11,21 @@
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* status.css <name|url> - set the stylesheet to use
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* type: string; values: "default", "blue" or a url to an external css file
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* Actions:
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* status.page - returns the status page to the client
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* status.show - returns the status page to the client
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* status.show_runtime - returns the runtime info page to the client
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*
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* Example config:
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* req.path == "/status" {
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* req.path == "/srv-status" {
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* status.css = "http://mydomain/status.css";
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* status.page;
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* if req.query == "runtime" {
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* status.show_runtime;
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* } else {
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* status.show;
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* }
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* }
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*
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* Todo:
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* - handle race condition when connection is gone while collecting data (needs per connection plugin data)
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* - add querystring parameters like refresh=X and format=plain
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*
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* Author:
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* Copyright (c) 2008 Thomas Porzelt
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@ -112,6 +117,56 @@ static const gchar html_connections_row[] =
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" <td>%s</td>\n"
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" </tr>\n";
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static const gchar html_server_info[] =
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" <table cellspacing=\"0\">\n"
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" <tr>\n"
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" <td class=\"left\" style=\"width: 100px;\">Hostname</td>\n"
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" <td class=\"left\">%s</td>\n"
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" </tr>\n"
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" <tr>\n"
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" <td class=\"left\">User</td>\n"
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" <td class=\"left\">%s (%u)</td>\n"
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" </tr>\n"
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" <td class=\"left\">Event handler</td>\n"
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" <td class=\"left\">%s</td>\n"
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" </table>\n";
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static const gchar html_libinfo_th[] =
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" <table cellspacing=\"0\">\n"
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" <tr>\n"
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" <th style=\"width: 100px;\"></th>\n"
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" <th style=\"width: 100px;\">linked</th>\n"
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" <th style=\"width: 100px;\">headers</th>\n"
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" </tr>\n";
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static const gchar html_libinfo_row[] =
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" <tr>\n"
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" <td class=\"left\">%s</td>\n"
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" <td style=\"text-align: center;\">%s</td>\n"
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" <td style=\"text-align: center;\">%s</td>\n"
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" </tr>\n";
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static const gchar html_libev_th[] =
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" <table cellspacing=\"0\">\n"
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" <tr>\n"
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" <th style=\"width: 100px;\"></th>\n"
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" <th style=\"width: 100px;\">select</th>\n"
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" <th style=\"width: 100px;\">poll</th>\n"
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" <th style=\"width: 100px;\">epoll</th>\n"
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" <th style=\"width: 100px;\">kqueue</th>\n"
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" <th style=\"width: 100px;\">/dev/poll</th>\n"
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" <th style=\"width: 125px;\">solaris event port</th>\n"
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" </tr>\n";
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static const gchar html_libev_row[] =
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" <tr>\n"
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" <td class=\"left\">%s</td>\n"
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" <td style=\"text-align: center;\">%s</td>\n"
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" <td style=\"text-align: center;\">%s</td>\n"
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" <td style=\"text-align: center;\">%s</td>\n"
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" <td style=\"text-align: center;\">%s</td>\n"
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" <td style=\"text-align: center;\">%s</td>\n"
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" <td style=\"text-align: center;\">%s</td>\n"
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" </tr>\n";
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static const gchar css_default[] =
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" <style type=\"text/css\">\n"
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" body { margin: 0; padding: 0; font-family: \"lucida grande\",tahoma,verdana,arial,sans-serif; font-size: 12px; }\n"
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@ -554,7 +609,7 @@ static void status_collect_cb(gpointer cbdata, gpointer fdata, GPtrArray *result
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}
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}
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static liHandlerResult status_page_handle(liVRequest *vr, gpointer param, gpointer *context) {
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static liHandlerResult status_show(liVRequest *vr, gpointer param, gpointer *context) {
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if (li_vrequest_handle_direct(vr)) {
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liCollectInfo *ci;
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mod_status_job *j = g_slice_new(mod_status_job);
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@ -571,7 +626,7 @@ static liHandlerResult status_page_handle(liVRequest *vr, gpointer param, gpoint
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return (*context) ? LI_HANDLER_WAIT_FOR_EVENT : LI_HANDLER_GO_ON;
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}
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static liHandlerResult status_page_cleanup(liVRequest *vr, gpointer param, gpointer context) {
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static liHandlerResult status_show_cleanup(liVRequest *vr, gpointer param, gpointer context) {
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liCollectInfo *ci = (liCollectInfo*) context;
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UNUSED(vr);
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@ -582,11 +637,210 @@ static liHandlerResult status_page_cleanup(liVRequest *vr, gpointer param, gpoin
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return LI_HANDLER_GO_ON;
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}
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static liAction* status_page(liServer *srv, liPlugin* p, liValue *val) {
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static liAction* status_show_create(liServer *srv, liPlugin* p, liValue *val) {
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UNUSED(srv);
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UNUSED(val);
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return li_action_new_function(status_page_handle, status_page_cleanup, NULL, p);
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return li_action_new_function(status_show, status_show_cleanup, NULL, p);
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}
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static gint str_comp(gconstpointer a, gconstpointer b) {
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return strcmp(*(const gchar**)a, *(const gchar**)b);
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}
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static liHandlerResult status_show_runtime(liVRequest *vr, gpointer param, gpointer *context) {
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GString *html;
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liPlugin* p = param;
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GString* css = _OPTION(vr, p, 0).string;
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UNUSED(context);
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if (!li_vrequest_handle_direct(vr))
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return LI_HANDLER_ERROR;
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html = g_string_sized_new(2047);
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g_string_append_len(html, CONST_STR_LEN(header));
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if (!css || !css->len) /* default css */
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g_string_append_len(html, CONST_STR_LEN(css_default));
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else if (g_str_equal(css->str, "blue")) /* blue css */
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g_string_append_len(html, CONST_STR_LEN(css_blue));
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else /* external css */
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g_string_append_printf(html, " <link rel=\"stylesheet\" rev=\"stylesheet\" href=\"%s\" media=\"screen\" />\n", css->str);
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g_string_append_len(html, CONST_STR_LEN(
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" </head>\n"
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" <body>\n"
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));
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li_counter_format((guint64)(CUR_TS(vr->wrk) - vr->wrk->srv->started), COUNTER_TIME, vr->wrk->tmp_str);
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g_string_append_printf(html, html_top,
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vr->request.uri.host->str,
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vr->wrk->tmp_str->str,
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vr->wrk->srv->started_str->str
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);
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/* general info */
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{
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g_string_append_len(html, CONST_STR_LEN(" <div class=\"title\"><strong>Server info</strong></div>\n"));
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g_string_append_printf(html, html_server_info,
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g_get_host_name(), g_get_user_name(), getuid(), li_ev_backend_string(ev_backend(vr->wrk->loop))
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);
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}
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/* library info */
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{
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GString *tmp_str = g_string_sized_new(31);
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g_string_append_len(html, CONST_STR_LEN(" <div class=\"title\"><strong>Libraries</strong></div>\n"));
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g_string_append_len(html, CONST_STR_LEN(html_libinfo_th));
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g_string_truncate(tmp_str, 0);
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g_string_append_printf(tmp_str, "%u.%u.%u", glib_major_version, glib_minor_version, glib_micro_version);
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g_string_truncate(vr->wrk->tmp_str, 0);
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g_string_append_printf(vr->wrk->tmp_str, "%u.%u.%u", GLIB_MAJOR_VERSION, GLIB_MINOR_VERSION, GLIB_MICRO_VERSION);
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g_string_append_printf(html, html_libinfo_row, "GLib",
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tmp_str->str,
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vr->wrk->tmp_str->str
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);
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g_string_truncate(tmp_str, 0);
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g_string_append_printf(tmp_str, "%u.%u", ev_version_major(), ev_version_minor());
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g_string_truncate(vr->wrk->tmp_str, 0);
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g_string_append_printf(vr->wrk->tmp_str, "%u.%u", EV_VERSION_MAJOR, EV_VERSION_MINOR);
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g_string_append_printf(html, html_libinfo_row, "libev",
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tmp_str->str,
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vr->wrk->tmp_str->str
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);
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g_string_append_len(html, CONST_STR_LEN(" </table>\n"));
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g_string_free(tmp_str, TRUE);
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}
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/* libev info */
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{
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guint i;
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g_string_append_len(html, CONST_STR_LEN(" <div class=\"title\"><strong>libev backends</strong></div>\n"));
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g_string_append_len(html, CONST_STR_LEN(html_libev_th));
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/* supported backend, aka compiled in */
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i = ev_supported_backends();
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g_string_append_printf(html, html_libev_row, "supported",
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i & EVBACKEND_SELECT ? "yes" : "no",
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i & EVBACKEND_POLL ? "yes" : "no",
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i & EVBACKEND_EPOLL ? "yes" : "no",
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i & EVBACKEND_KQUEUE ? "yes" : "no",
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i & EVBACKEND_DEVPOLL ? "yes" : "no",
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i & EVBACKEND_PORT ? "yes" : "no"
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);
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/* recommended backends */
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i = ev_recommended_backends();
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g_string_append_printf(html, html_libev_row, "recommended",
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i & EVBACKEND_SELECT ? "yes" : "no",
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i & EVBACKEND_POLL ? "yes" : "no",
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i & EVBACKEND_EPOLL ? "yes" : "no",
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i & EVBACKEND_KQUEUE ? "yes" : "no",
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i & EVBACKEND_DEVPOLL ? "yes" : "no",
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i & EVBACKEND_PORT ? "yes" : "no"
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);
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g_string_append_len(html, CONST_STR_LEN(" </table>\n"));
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}
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/* list modules */
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{
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guint i, col;
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gpointer k, v;
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GHashTableIter iter;
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GArray *list = g_array_sized_new(FALSE, FALSE, sizeof(gchar*), g_hash_table_size(vr->wrk->srv->plugins));
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g_string_append_len(html, CONST_STR_LEN(" <div class=\"title\"><strong>Loaded modules</strong></div>\n"));
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g_string_append_len(html, CONST_STR_LEN(" <table cellspacing=\"0\">\n"));
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g_hash_table_iter_init(&iter, vr->wrk->srv->plugins);
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while (g_hash_table_iter_next(&iter, &k, &v))
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g_array_append_val(list, k);
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g_array_sort(list, str_comp);
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col = 0;
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for (i = 1; i < list->len; i++) {
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if (col == 0) {
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g_string_append_len(html, CONST_STR_LEN(" <tr>\n"));
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col++;
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}
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else if (col == 5) {
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g_string_append_len(html, CONST_STR_LEN(" </tr>\n"));
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col = 0;
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continue;
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} else {
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col++;
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}
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g_string_append_printf(html, " <td class=\"left\">%s</td>\n", g_array_index(list, gchar*, i));
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}
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if (col) {
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for (i = 5 - col; i; i--)
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g_string_append_len(html, CONST_STR_LEN(" <td></td>\n"));
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g_string_append_len(html, CONST_STR_LEN(" </tr>\n"));
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}
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g_string_append_len(html, CONST_STR_LEN(" </table>\n"));
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g_array_free(list, TRUE);
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}
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/* list environment vars */
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{
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gchar **e;
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gchar **env = g_listenv();
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g_string_append_len(html, CONST_STR_LEN(" <div class=\"title\"><strong>Process environment</strong></div>\n"));
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g_string_append_len(html, CONST_STR_LEN(" <table cellspacing=\"0\">\n"));
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for (e = env; *e; e++) {
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g_string_append_printf(html, " <tr><td class=\"left\">%s</td><td class=\"left\">%s</td></tr>\n", *e, getenv(*e));
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}
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g_string_append_len(html, CONST_STR_LEN(" </table>\n"));
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g_strfreev(env);
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}
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g_string_append_len(html, CONST_STR_LEN(
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" </body>\n"
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"</html>\n"
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));
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li_chunkqueue_append_string(vr->out, html);
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li_http_header_overwrite(vr->response.headers, CONST_STR_LEN("Content-Type"), CONST_STR_LEN("text/html"));
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vr->response.http_status = 200;
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return LI_HANDLER_GO_ON;
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}
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static liAction* status_show_runtime_create(liServer *srv, liPlugin* p, liValue *val) {
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UNUSED(srv);
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if (val) {
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ERROR(srv, "%s", "status.show_runtime expects no parameter");
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return NULL;
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}
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return li_action_new_function(status_show_runtime, NULL, NULL, p);
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}
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@ -598,7 +852,8 @@ static const liPluginOption options[] = {
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};
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static const liPluginAction actions[] = {
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{ "status.page", status_page },
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{ "status.show", status_show_create },
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{ "status.show_runtime", status_show_runtime_create },
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{ NULL, NULL }
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};
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