Interface Tango::CallBack

interface CallBack

Generic client interface for asynchronous Device callbacks. Every Device client which wants to dispatch commands asynchronously has to create one or more CallBack objects. The CallBack object is passed as input parameter to the asynchronous call. It is invoked by the device server when the asynchronous call has completed. All return arguments are passed via the DevCallBackData struct. The CallBack object has a pending attribute to indicate the number of requests waiting for completion.

THIS IS A PSEUDO-IDL FILE DOCUMENTATION

Attribute Index

pending: pending (readonly) - number of request pending

Operation Index

handler: method to invoke when calling client back
handler_list: method to invoke when calling a client back after a grouped call

Attributes

pending

readonly attribute long pending;

pending (readonly) - number of request pending

Operations

handler

void handler(in DevCallBackInfo info);

method to invoke when calling client back

Parameters:: info -callback information

Returns:: nothing

handler_list

void handler_list(in DevCallBackInfoList info);

method to invoke when calling a client back after a grouped call

Parameters:: info_list -list of callback information

Returns:: nothing

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