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From rj...@apache.org
Subject svn commit: r1629507 - in /httpd/httpd/trunk: CHANGES docs/log-message-tags/next-number modules/cache/mod_cache_socache.c
Date Sun, 05 Oct 2014 17:00:31 GMT
Author: rjung
Date: Sun Oct  5 17:00:31 2014
New Revision: 1629507

URL: http://svn.apache.org/r1629507
Log:
mod_cache_socache: Add cache status to server-status.

The status_hook simply calls the status function of
socache, very much like mod_ssl does for the ssl
session cache.

Modified:
    httpd/httpd/trunk/CHANGES
    httpd/httpd/trunk/docs/log-message-tags/next-number
    httpd/httpd/trunk/modules/cache/mod_cache_socache.c

Modified: httpd/httpd/trunk/CHANGES
URL: http://svn.apache.org/viewvc/httpd/httpd/trunk/CHANGES?rev=1629507&r1=1629506&r2=1629507&view=diff
==============================================================================
--- httpd/httpd/trunk/CHANGES [utf-8] (original)
+++ httpd/httpd/trunk/CHANGES [utf-8] Sun Oct  5 17:00:31 2014
@@ -1,6 +1,8 @@
                                                          -*- coding: utf-8 -*-
 Changes with Apache 2.5.0
 
+  *) mod_cache_socache: Add cache status to server-status.  [Rainer Jung]
+
   *) mod_ssl: Move OCSP stapling information from a per-certificate store to
      a per-server hash. PR 54357, PR 56919. [Alex Bligh <alex alex.org.uk>,
      Kaspar Brand]

Modified: httpd/httpd/trunk/docs/log-message-tags/next-number
URL: http://svn.apache.org/viewvc/httpd/httpd/trunk/docs/log-message-tags/next-number?rev=1629507&r1=1629506&r2=1629507&view=diff
==============================================================================
--- httpd/httpd/trunk/docs/log-message-tags/next-number (original)
+++ httpd/httpd/trunk/docs/log-message-tags/next-number Sun Oct  5 17:00:31 2014
@@ -1 +1 @@
-2816
+2818

Modified: httpd/httpd/trunk/modules/cache/mod_cache_socache.c
URL: http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/cache/mod_cache_socache.c?rev=1629507&r1=1629506&r2=1629507&view=diff
==============================================================================
--- httpd/httpd/trunk/modules/cache/mod_cache_socache.c (original)
+++ httpd/httpd/trunk/modules/cache/mod_cache_socache.c Sun Oct  5 17:00:31 2014
@@ -22,6 +22,7 @@
 #include "http_config.h"
 #include "http_log.h"
 #include "http_core.h"
+#include "http_protocol.h"
 #include "ap_provider.h"
 #include "ap_socache.h"
 #include "util_filter.h"
@@ -30,6 +31,7 @@
 #include "util_mutex.h"
 
 #include "mod_cache.h"
+#include "mod_status.h"
 
 #include "cache_socache_common.h"
 
@@ -1375,6 +1377,56 @@ static apr_status_t destroy_cache(void *
     return APR_SUCCESS;
 }
 
+static int socache_status_hook(request_rec *r, int flags)
+{
+    apr_status_t status = APR_SUCCESS;
+    cache_socache_conf *conf = ap_get_module_config(r->server->module_config,
+                                                    &cache_socache_module);
+    if (!conf->provider || !conf->provider->socache_provider ||
+        !conf->provider->socache_instance) {
+        return DECLINED;
+    }
+
+    ap_rputs("<hr>\n"
+             "<table cellspacing=0 cellpadding=0>\n"
+             "<tr><td bgcolor=\"#000000\">\n"
+             "<b><font color=\"#ffffff\" face=\"Arial,Helvetica\">"
+             "mod_cache_socache Status:</font></b>\n"
+             "</td></tr>\n"
+             "<tr><td bgcolor=\"#ffffff\">\n", r);
+
+    if (socache_mutex) {
+        status = apr_global_mutex_lock(socache_mutex);
+        if (status != APR_SUCCESS) {
+            ap_log_rerror(APLOG_MARK, APLOG_ERR, status, r, APLOGNO(02816)
+                    "could not acquire lock for cache status");
+        }
+    }
+
+    if (status != APR_SUCCESS) {
+        ap_rputs("No cache status data available\n", r);
+    } else {
+        conf->provider->socache_provider->status(conf->provider->socache_instance,
+                                                 r, flags);
+    }
+
+    if (socache_mutex && status == APR_SUCCESS) {
+        status = apr_global_mutex_unlock(socache_mutex);
+        if (status != APR_SUCCESS) {
+            ap_log_rerror(APLOG_MARK, APLOG_ERR, status, r, APLOGNO(02817)
+                    "could not release lock for cache status");
+        }
+    }
+
+    ap_rputs("</td></tr>\n</table>\n", r);
+    return OK;
+}
+
+void socache_status_register(apr_pool_t *p)
+{
+    APR_OPTIONAL_HOOK(ap, status_hook, socache_status_hook, NULL, NULL, APR_HOOK_MIDDLE);
+}
+
 static int socache_precfg(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptmp)
 {
     apr_status_t rv = ap_mutex_register(pconf, cache_socache_id, NULL,
@@ -1384,6 +1436,10 @@ static int socache_precfg(apr_pool_t *pc
         "failed to register %s mutex", cache_socache_id);
         return 500; /* An HTTP status would be a misnomer! */
     }
+
+    /* Register to handle mod_status status page generation */
+    socache_status_register(pconf);
+
     return OK;
 }
 



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