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megaco_encoder(3erl) Erlang Module Definition megaco_encoder(3erl) NAME
megaco_encoder - Megaco encoder behaviour. DESCRIPTION
The following functions should be exported from a megaco_encoder callback module: DATA TYPES
megaco_message() = #'MegacoMessage{}' transaction() = {transactionRequest, transaction_request()} | {transactionPending, transaction_reply()} | {transactionReply, transaction_pending()} | {transactionResponseAck, transaction_response_ack()} | {segmentReply, segment_reply()} transaction_request() = #'TransactionRequest'{} transaction_pending() = #'TransactionPending'{} transaction_reply() = #'TransactionReply'{} transaction_response_ack() = [transaction_ack()] transaction_ack() = #'TransactionAck'{} segment_reply() = #'SegmentReply'{} action_request() = #'ActionRequest'{} action_reply() = #'ActionReply'{} EXPORTS
Module:encode_message(EncodingConfig, Version, Message) -> {ok, Bin} | Error Types EncodingConfig = list() Version = integer() Message = megaco_message() Bin = binary() Error = term() Encode a megaco message. Module:decode_message(EncodingConfig, Version, Bin) -> {ok, Message} | Error Types EncodingConfig = list() Version = integer() | dynamic Message = megaco_message() Bin = binary() Error = term() Decode a megaco message. Note that if the Version argument is dynamic , the decoder should try to figure out the actual version from the message itself and then use the proper decoder, e.g. version 1. If on the other hand the Version argument is an integer, it means that this is the expected version of the message and the decoder for that version should be used. Module:decode_mini_message(EncodingConfig, Version, Bin) -> {ok, Message} | Error Types EncodingConfig = list() Version = integer() | dynamic Message = megaco_message() Bin = binary() Error = term() Perform a minimal decode of a megaco message. The purpose of this function is to do a minimal decode of Megaco message. A successfull result is a 'MegacoMessage' in which only version and mid has been initiated. This function is used by the megaco_messenger module when the decode_message/3 function fails to figure out the mid (the actual sender) of the message. Note again that a successfull decode only returns a partially initiated message. Module:encode_transaction(EncodingConfig, Version, Transaction) -> OK | Error Types EncodingConfig = list() Version = integer() Transaction = transaction() OK = {ok, Bin} Bin = binary() Error = {error, Reason} Reason = not_implemented | OtherReason OtherReason = term() Encode a megaco transaction. If this, for whatever reason, is not supported, the function should return the error reason not_imple- mented . This functionality is used both when the transaction sender is used and for segmentation. So, for either of those to work, this function must be fully supported! Module:encode_action_requests(EncodingConfig, Version, ARs) -> OK | Error Types EncodingConfig = list() Version = integer() ARs = action_requests() action_requests() = [action_request()] OK = {ok, Bin} Bin = binary() Error = {error, Reason} Reason = not_implemented | OtherReason OtherReason = term() Encode megaco action requests. This function is called when the user calls the function encode_actions/3 . If that function is never used or if the codec cannot support this (the encoding of individual actions), then return with error reason not_implemented . Module:encode_action_reply(EncodingConfig, Version, AR) -> OK | Error Types EncodingConfig = list() Version = integer() AR = action_reply() OK = {ok, Bin} Bin = binary() Error = {error, Reason} Reason = not_implemented | OtherReason OtherReason = term() Encode a megaco action reply. If this, for whatever reason, is not supported, the function should return the error reason not_imple- mented . This function is used when segmentation has been configured. So, for this to work, this function must be fully supported! Ericsson AB megaco 3.15.1 megaco_encoder(3erl)
Error -350