clarify that filter_init_func is used only in the http protocol filters

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git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@101059 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/include/util_filter.h b/include/util_filter.h
index ff2baf77b45c18194621a4cfabaddc5e7015f78f..b086398a4d76637dea162e43cbdc5215f3fa8bcd 100644 (file)
--- a/include/util_filter.h
+++ b/include/util_filter.h
@@ -250,7 +250,10 @@ struct ap_filter_rec_t {
     const char *name;
     /** The function to call when this filter is invoked. */
     ap_filter_func filter_func;
-    /** The function to call before the handlers are invoked. */
+    /** The function to call before the handlers are invoked. Notice
+     * that this function is called only for filters participating in
+     * the http protocol. Filters for other protocols are to be
+     * initiliazed by the protocols themselves. */
     ap_init_filter_func filter_init_func;
     /** The type of filter, either AP_FTYPE_CONTENT or AP_FTYPE_CONNECTION.  
      * An AP_FTYPE_CONTENT filter modifies the data based on information