Hi,
Working on the library_webcl.js for Emscripten, I have some difficulty with
function who take callback.
My function is : clSetEventCallback:
function(event,command_exec_callback_type,pfn_notify,user_data) { ... }
Where pfn_notify is the pointer function.
For do that I create a callback variable inside the js function.
* var _callback = null*
* if (pfn_notify != 0) {*
* _callback = function() { *
* console.info("\nCall callback function :
FUNCTION_TABLE["+pfn_notify+"]("+event+", "+command_exec_callback_type+" ,
"+user_data+")");*
* FUNCTION_TABLE[pfn_notify](event, command_exec_callback_type ,
user_data); *
* };*
* }*
And after that I call the WebCl function passing the callback variable :
* CL.cl_objects[event].setCallback(command_exec_callback_type,_callback);*
The complete call result give :
*[Log] (SetEventCallBack.js, line 5624)*
*clSetEventCallback(991646,0,636,0)*
* ->[object WebCLEvent].setCallback(0,function () { *
* console.info("\nCall callback function :
FUNCTION_TABLE["+pfn_notify+"]("+event+", "+command_exec_callback_type+" ,
"+user_data+")");*
* FUNCTION_TABLE[pfn_notify](event, command_exec_callback_type ,
user_data); *
* })*
* =>Result (0) - Message () - Exception ()*
My problem is the console info is correctly call, inside the console I have
:
*Call callback function : FUNCTION_TABLE[636](991646, 0 , 0)*
But the printf inside the function callback in the c++ part is never
printed.
May be I misunderstand something, so any idea how i must do ??
Tony
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