diff options
Diffstat (limited to 'lib/diameter/doc/src/diameter_app.xml')
| -rw-r--r-- | lib/diameter/doc/src/diameter_app.xml | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/lib/diameter/doc/src/diameter_app.xml b/lib/diameter/doc/src/diameter_app.xml index ac056c2d39..b6870f7c28 100644 --- a/lib/diameter/doc/src/diameter_app.xml +++ b/lib/diameter/doc/src/diameter_app.xml @@ -382,7 +382,7 @@ communicate transport (or any other) data to the callback.</p> <p> A returned <seealso marker="#packet">packet()</seealso> can set the <c>header</c> field to a -<c>#diameter_header{}</c> in order to specify values that should +<c>#diameter_header{}</c> to specify values that should be preserved in the outgoing request, values otherwise being those in the header record contained in <c>Packet</c>. A returned <c>length</c>, <c>cmd_code</c> or <c>application_id</c> is @@ -537,7 +537,8 @@ not selected.</p> | {relay, [Opt]} | discard | {eval|eval_packet, Action, PostF}</v> -<v>Reply = {reply, <seealso marker="#message">message()</seealso>} +<v>Reply = {reply, <seealso marker="#packet">packet()</seealso> + | <seealso marker="#message">message()</seealso>} | {protocol_error, 3000..3999}</v> <v>Opt = <seealso marker="diameter#call_opt">diameter:call_opt()</seealso></v> <v>PostF = <seealso marker="diameter#evaluable">diameter:evaluable()</seealso></v> @@ -568,7 +569,7 @@ The argument <seealso marker="#packet">packet()</seealso> has the following sign </code> <p> -The <c>msg</c> field will be <c>undefined</c> only in case the request has +The <c>msg</c> field will be <c>undefined</c> in case the request has been received in the relay application. Otherwise it contains the record representing the request as outlined in <seealso @@ -590,19 +591,26 @@ the relay application.</p> The <c>transport_data</c> field contains an arbitrary term passed into diameter from the transport module in question, or the atom <c>undefined</c> if the transport specified no data. -The term is preserved in the <seealso marker="#packet">packet()</seealso> containing any answer message -sent back to the transport process unless another value is explicitly -specified.</p> +The term is preserved if a <seealso +marker="#packet">message()</seealso> is returned but must be set +explicitly in a returned <seealso marker="#packet">packet()</seealso>.</p> <p> The semantics of each of the possible return values are as follows.</p> <taglist> -<tag><c>{reply, <seealso marker="#message">message()</seealso>}</c></tag> +<tag><c>{reply, <seealso marker="#packet">packet()</seealso> + | <seealso marker="#message">message()</seealso>}</c></tag> <item> <p> -Send the specified answer message to the peer.</p> +Send the specified answer message to the peer. +In the case of a <seealso marker="#packet">packet()</seealso>, the +message to be sent must be set in the +<c>msg</c> field and the <c>header</c> field can be set to a +<c>#diameter_header{}</c> to specify values that should be +preserved in the outgoing answer, appropriate values otherwise +being set by diameter.</p> </item> <tag><c>{protocol_error, 3000..3999}</c></tag> |