Difference between revisions of "LlKeyCountKeyValue"

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(Created page with "Category:Experience Tools {{LSL_Function |func=llKeyCountKeyValue |func_desc=Start an asynchronous transaction to request the number of keys in the system. |func_footnote= Th…")
 
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|func_desc=Start an asynchronous transaction to request the number of keys in the system.
 
|func_desc=Start an asynchronous transaction to request the number of keys in the system.
 
|func_footnote=
 
|func_footnote=
The dataserver callback parameters are:
+
The [[dataserver]] callback parameters are:
* A key containing the transaction ID returned from llKeyCountKeyValue
+
* A key containing the {{LSLGC|Key/handle|handle}} returned from llKeyCountKeyValue
* A string containing a comma-delimited list.  The first item is a boolean specifying if the transaction succeeded (1) or not (0). On a success result the second value is the number of items in the system.
+
* A string containing a comma-delimited list.  The first item is a boolean specifying if the transaction succeeded (1) or not (0). On a success result the second value is the number of items in the system.
|return_type=key
+
|return_type=key|return_subtype=handle
|return_text=Returns the ID of the transaction
+
|return_text=that can be used to identify the corresponding [[dataserver]] event to determine if this command succeeded or failed.
 
|also_functions=
 
|also_functions=
 
*[[llGetExperienceErrorMessage]]
 
*[[llGetExperienceErrorMessage]]
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         }
 
         }
 
     }  
 
     }  
}</lsl>}}
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}</lsl>
 +
|cat1=Experience
 +
|cat2=Dataserver
 +
}}

Revision as of 21:35, 8 July 2014

Summary

Function: key llKeyCountKeyValue( );

Start an asynchronous transaction to request the number of keys in the system.
Returns a handle (a key) that can be used to identify the corresponding dataserver event to determine if this command succeeded or failed.

The dataserver callback parameters are:

  • A key containing the handle returned from llKeyCountKeyValue
  • A string containing a comma-delimited list. The first item is a boolean specifying if the transaction succeeded (1) or not (0). On a success result the second value is the number of items in the system.

Examples

<lsl>key trans; default {

   state_entry()
   {
       trans = llKeyCountKeyValue("FOO");
   }

}

dataserver(key t, string value) {

   if (t == trans)
   {
       // our llKeyCountKeyValue transaction is done
       list result = llCSV2List(value);
       if (llList2Integer(result, 0) == 1)
       {
           // data size retrieved
           llSay(0, "Keys in use: "+llList2String(result, 1)");
       }
       else
       {
           // key count failed
           llSay(0, "Key-value failed to count keys: " + llList2String(result, 1) );
       }
   } 
}</lsl>

Deep Notes

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Signature

function key llKeyCountKeyValue();