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Subject svn commit: r1001824 - /httpd/httpd/trunk/docs/manual/mod/mod_slotmem_shm.xml
Date Mon, 27 Sep 2010 17:22:58 GMT
Author: jim
Date: Mon Sep 27 17:22:58 2010
New Revision: 1001824

Update doccos and explain clear/clean of shared mem
as well as persist


Modified: httpd/httpd/trunk/docs/manual/mod/mod_slotmem_shm.xml
--- httpd/httpd/trunk/docs/manual/mod/mod_slotmem_shm.xml (original)
+++ httpd/httpd/trunk/docs/manual/mod/mod_slotmem_shm.xml Mon Sep 27 17:22:58 2010
@@ -34,6 +34,13 @@
     in which the datasets are organized in "slots."
+    <p>All shared memory is cleared and cleaned with each
+    restart, whether graceful or not. The data itself is
+    stored and restored within a file noted by the <code>name</code>
+    parameter in the <code>create</code> and <code>attach</code>
+    calls.
+    </p>
     <p><code>mod_slotmem_shm</code> provides the following API functions:
@@ -42,10 +49,19 @@
       <dd>call the callback on all worker slots</dd>
       <dt>apr_status_t create(ap_slotmem_instance_t **new, const char *name, apr_size_t
item_size, unsigned int item_num, ap_slotmem_type_t type, apr_pool_t *pool)</dt>
-      <dd>create a new slotmem with each item size is item_size.</dd>
+      <dd>create a new slotmem with each item size is item_size. <code>name</code>
is the filename for the persistant store of
+      the shared memory. Values are:
+       <dl>
+         <dt><code>anonymous</code></dt>
+         <dd><code>$server_root/logs/anonymous.slotmem</code></dd>
+         <dt><code>:module_name.c</code></dt>
+         <dd><code>$server_root/logs/module_name.c.slotmem</code></dd>
+         <dt><code>"absolute-file-name"</code></dt>
+         <dd><code>$absolute-file-name.slotmem</code></dd>
+       </dl>
       <dt>apr_status_t attach(ap_slotmem_instance_t **new, const char *name, apr_size_t
*item_size, unsigned int *item_num, apr_pool_t *pool)</dt>
-      <dd>attach to an existing slotmem.</dd>
+      <dd>attach to an existing slotmem. See <code>create</code> for description
of <code>name</code> parameter.</dd>
       <dt>apr_status_t dptr(ap_slotmem_instance_t *s, unsigned int item_id, void**mem)</dt>
       <dd>get the direct pointer to the memory associated with this worker slot.</dd>

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