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From jor...@apache.org
Subject svn commit: r600473 - in /httpd/httpd/trunk: include/ap_mmn.h include/util_filter.h server/util_filter.c
Date Mon, 03 Dec 2007 10:55:59 GMT
Author: jorton
Date: Mon Dec  3 02:55:58 2007
New Revision: 600473

URL: http://svn.apache.org/viewvc?rev=600473&view=rev
Log:
Further to r599711; document new API guarantee for handling non-NULL
request_rec pointer when adding connection filters; minor MMN bump:

* server/util_filter.c (add_any_filter_handle): Set f->r for
  connection filters even if passed-in r is non-NULL.  Style nit fix
  also.

* include/util_filter.h (ap_add_output_filter,
  ap_add_output_filter_handle): Document new API guarantee.

* include/ap_mmn.h: Minor MMN bump.

Modified:
    httpd/httpd/trunk/include/ap_mmn.h
    httpd/httpd/trunk/include/util_filter.h
    httpd/httpd/trunk/server/util_filter.c

Modified: httpd/httpd/trunk/include/ap_mmn.h
URL: http://svn.apache.org/viewvc/httpd/httpd/trunk/include/ap_mmn.h?rev=600473&r1=600472&r2=600473&view=diff
==============================================================================
--- httpd/httpd/trunk/include/ap_mmn.h (original)
+++ httpd/httpd/trunk/include/ap_mmn.h Mon Dec  3 02:55:58 2007
@@ -141,6 +141,8 @@
  *                         public scoreboard API.
  * 20071108.1 (2.3.0-dev)  Add the optional kept_body brigade to request_rec
  * 20071108.2 (2.3.0-dev)  Add st and keep fields to struct util_ldap_connection_t
+ * 20071108.3 (2.3.0-dev)  Add API guarantee for adding connection filters
+ *                         with non-NULL request_rec pointer (ap_add_*_filter*)
  */
 
 #define MODULE_MAGIC_COOKIE 0x41503234UL /* "AP24" */
@@ -148,7 +150,7 @@
 #ifndef MODULE_MAGIC_NUMBER_MAJOR
 #define MODULE_MAGIC_NUMBER_MAJOR 20071108
 #endif
-#define MODULE_MAGIC_NUMBER_MINOR 2                    /* 0...n */
+#define MODULE_MAGIC_NUMBER_MINOR 3                    /* 0...n */
 
 /**
  * Determine if the server's current MODULE_MAGIC_NUMBER is at least a

Modified: httpd/httpd/trunk/include/util_filter.h
URL: http://svn.apache.org/viewvc/httpd/httpd/trunk/include/util_filter.h?rev=600473&r1=600472&r2=600473&view=diff
==============================================================================
--- httpd/httpd/trunk/include/util_filter.h (original)
+++ httpd/httpd/trunk/include/util_filter.h Mon Dec  3 02:55:58 2007
@@ -411,6 +411,10 @@
  * @param ctx Context data to set in the filter
  * @param r The request to add this filter for (or NULL if it isn't associated with a request)
  * @param c The connection to add this filter for
+ * @note If adding a connection-level output filter (i.e. where the type
+ * is >= AP_FTYPE_CONNECTION) during processing of a request, the request
+ * object r must be passed in to ensure the filter chains are modified
+ * correctly.  f->r will still be initialized as NULL in the new filter.
  */
 AP_DECLARE(ap_filter_t *) ap_add_output_filter(const char *name, void *ctx, 
                                                request_rec *r, conn_rec *c);
@@ -421,7 +425,11 @@
  *
  * @param f The filter handle to add
  * @param r The request to add this filter for (or NULL if it isn't associated with a request)
- * @param c The connection to add the fillter for
+ * @param c The connection to add the filter for
+ * @note If adding a connection-level output filter (i.e. where the type
+ * is >= AP_FTYPE_CONNECTION) during processing of a request, the request
+ * object r must be passed in to ensure the filter chains are modified
+ * correctly.  f->r will still be initialized as NULL in the new filter.
  */
 AP_DECLARE(ap_filter_t *) ap_add_output_filter_handle(ap_filter_rec_t *f,
                                                       void *ctx,

Modified: httpd/httpd/trunk/server/util_filter.c
URL: http://svn.apache.org/viewvc/httpd/httpd/trunk/server/util_filter.c?rev=600473&r1=600472&r2=600473&view=diff
==============================================================================
--- httpd/httpd/trunk/server/util_filter.c (original)
+++ httpd/httpd/trunk/server/util_filter.c Mon Dec  3 02:55:58 2007
@@ -279,7 +279,7 @@
                                           ap_filter_t **p_filters,
                                           ap_filter_t **c_filters)
 {
-    apr_pool_t* p = frec->ftype < AP_FTYPE_CONNECTION && r ? r->pool : c->pool;
+    apr_pool_t *p = frec->ftype < AP_FTYPE_CONNECTION && r ? r->pool : c->pool;
     ap_filter_t *f = apr_palloc(p, sizeof(*f));
     ap_filter_t **outf;
 
@@ -309,7 +309,8 @@
 
     f->frec = frec;
     f->ctx = ctx;
-    f->r = r;
+    /* f->r must always be NULL for connection filters */
+    f->r = frec->ftype < AP_FTYPE_CONNECTION ? r : NULL;
     f->c = c;
     f->next = NULL;
 



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