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Posted to commits@subversion.apache.org by ph...@apache.org on 2014/05/16 13:27:52 UTC

svn commit: r1595160 - in /subversion/trunk: build/ac-macros/apache.m4 subversion/mod_dav_svn/dav_svn.h subversion/mod_dav_svn/mod_dav_svn.c subversion/mod_dav_svn/status.c

Author: philip
Date: Fri May 16 11:27:52 2014
New Revision: 1595160

URL: http://svn.apache.org/r1595160
Log:
Add a mod_dav_svn handler to allow the server admin to GET the FSFS
global cache statistics.

* subversion/mod_dav_svn/dav_svn.h
  (dav_svn__status): New.

* subversion/mod_dav_svn/mod_dav_svn.c
  (register_hooks): Register new hook.

* subversion/mod_dav_svn/status.c: New file.

* build/ac-macros/apache.m4: Check for unistd.h and getpid().

Added:
    subversion/trunk/subversion/mod_dav_svn/status.c
Modified:
    subversion/trunk/build/ac-macros/apache.m4
    subversion/trunk/subversion/mod_dav_svn/dav_svn.h
    subversion/trunk/subversion/mod_dav_svn/mod_dav_svn.c

Modified: subversion/trunk/build/ac-macros/apache.m4
URL: http://svn.apache.org/viewvc/subversion/trunk/build/ac-macros/apache.m4?rev=1595160&r1=1595159&r2=1595160&view=diff
==============================================================================
--- subversion/trunk/build/ac-macros/apache.m4 (original)
+++ subversion/trunk/build/ac-macros/apache.m4 Fri May 16 11:27:52 2014
@@ -157,6 +157,8 @@ if test -n "$APXS" && test "$APXS" != "n
         APACHE_LIBEXECDIR="`$APXS -q libexecdir`"
     fi
 
+    AC_CHECK_HEADERS(unistd.h, [AC_CHECK_FUNCS(getpid)], [])
+
     BUILD_APACHE_RULE=apache-mod
     INSTALL_APACHE_RULE=install-mods-shared
     INSTALL_APACHE_MODS=true

Modified: subversion/trunk/subversion/mod_dav_svn/dav_svn.h
URL: http://svn.apache.org/viewvc/subversion/trunk/subversion/mod_dav_svn/dav_svn.h?rev=1595160&r1=1595159&r2=1595160&view=diff
==============================================================================
--- subversion/trunk/subversion/mod_dav_svn/dav_svn.h (original)
+++ subversion/trunk/subversion/mod_dav_svn/dav_svn.h Fri May 16 11:27:52 2014
@@ -482,6 +482,8 @@ dav_svn__store_activity(const dav_svn_re
 /* POST request handler.  (Used by HTTP protocol v2 clients only.)  */
 int dav_svn__method_post(request_rec *r);
 
+/* Request handler to GET Subversion internal status (FSFS cache). */
+int dav_svn__status(request_rec *r);
 
 /*** repos.c ***/
 

Modified: subversion/trunk/subversion/mod_dav_svn/mod_dav_svn.c
URL: http://svn.apache.org/viewvc/subversion/trunk/subversion/mod_dav_svn/mod_dav_svn.c?rev=1595160&r1=1595159&r2=1595160&view=diff
==============================================================================
--- subversion/trunk/subversion/mod_dav_svn/mod_dav_svn.c (original)
+++ subversion/trunk/subversion/mod_dav_svn/mod_dav_svn.c Fri May 16 11:27:52 2014
@@ -1349,6 +1349,9 @@ register_hooks(apr_pool_t *pconf)
   /* general request handler for methods which mod_dav DECLINEs. */
   ap_hook_handler(dav_svn__handler, NULL, NULL, APR_HOOK_LAST);
 
+  /* Handler to GET Subversion's FSFS cache stats, a bit like mod_status. */
+  ap_hook_handler(dav_svn__status, NULL, NULL, APR_HOOK_MIDDLE);
+
   /* live property handling */
   dav_hook_gather_propsets(dav_svn__gather_propsets, NULL, NULL,
                            APR_HOOK_MIDDLE);

Added: subversion/trunk/subversion/mod_dav_svn/status.c
URL: http://svn.apache.org/viewvc/subversion/trunk/subversion/mod_dav_svn/status.c?rev=1595160&view=auto
==============================================================================
--- subversion/trunk/subversion/mod_dav_svn/status.c (added)
+++ subversion/trunk/subversion/mod_dav_svn/status.c Fri May 16 11:27:52 2014
@@ -0,0 +1,94 @@
+/*
+ * ====================================================================
+ *    Licensed to the Apache Software Foundation (ASF) under one
+ *    or more contributor license agreements.  See the NOTICE file
+ *    distributed with this work for additional information
+ *    regarding copyright ownership.  The ASF licenses this file
+ *    to you under the Apache License, Version 2.0 (the
+ *    "License"); you may not use this file except in compliance
+ *    with the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing,
+ *    software distributed under the License is distributed on an
+ *    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *    KIND, either express or implied.  See the License for the
+ *    specific language governing permissions and limitations
+ *    under the License.
+ * ====================================================================
+ */
+
+#include <httpd.h>
+#include <http_core.h>
+#include <http_config.h>
+#include <http_request.h>
+#include <http_protocol.h>
+
+#include "dav_svn.h"
+#include "private/svn_cache.h"
+#include "private/svn_fs_private.h"
+
+#ifndef DEFAULT_TIME_FORMAT
+#define DEFAULT_TIME_FORMAT "%F %H:%M:%S %z"
+#endif
+
+/* A bit like mod_status: add a location:
+
+     <Location /svn-status>
+       SetHandler svn-status
+     </Location>
+
+  and then point a browser at http://server/svn-status.
+*/
+int dav_svn__status(request_rec *r)
+{
+  svn_cache__info_t *info;
+  svn_string_t *text_stats;
+  apr_array_header_t *lines;
+  int i;
+
+  if (r->method_number != M_GET || strcmp(r->handler, "svn-status"))
+    return DECLINED;
+
+  info = svn_cache__membuffer_get_global_info(r->pool);
+  text_stats = svn_cache__format_info(info, FALSE, r->pool);
+  lines = svn_cstring_split(text_stats->data, "\n", FALSE, r->pool);
+
+  ap_set_content_type(r, "text/html; charset=ISO-8859-1");
+
+  ap_rvputs(r, 
+            DOCTYPE_HTML_3_2
+            "<html><head>\n"
+            "<title>Apache SVN Status</title>\n"
+            "</head><body>\n"
+            "<h1>Apache SVN Cache Status for ",
+            ap_escape_html(r->pool, ap_get_server_name(r)),
+            " (via ",
+            r->connection->local_ip,
+            ")</h1>\n<dl>\n<dt>Server Version: ",
+            ap_get_server_description(),
+            "</dt>\n<dt>Current Time: ",
+            ap_ht_time(r->pool, apr_time_now(), DEFAULT_TIME_FORMAT, 0),
+            "</dt>\n", SVN_VA_NULL);
+
+#if !defined(WIN32) && defined(HAVE_UNISTD_H) && defined(HAVE_GETPID)
+  /* On Unix the server is generally multiple processes and this
+     request only shows the status of the single process that handles
+     the request. Ideally we would iterate over all processes but that
+     would need some MPM support, so we settle for simply showing the
+     process ID. */
+#include <unistd.h>
+  ap_rprintf(r, "<dt>Server process id: %d</dt>\n", (int)getpid());
+#endif
+
+  for (i = 0; i < lines->nelts; ++i)
+    {
+      const char *line = APR_ARRAY_IDX(lines, i, const char *);
+      ap_rvputs(r, "<dt>", line, "</dt>\n", SVN_VA_NULL);
+    }
+
+  ap_rvputs(r, "</dl></body></html>\n", SVN_VA_NULL);
+
+  return 0;
+}