send_string

Arguments

Returns

A result depending on the receiving task.

Description

This function transmits the string via synchronous interprocess communication to a non-Cascade DataHub receiving task. The task processes the message and returns a result based on that processing. If the task is a Gamma process, the message will be interpreted as a Lisp expression and evaluated. The return value will be the result of that evaluation. If an error occurs during the evaluation, an expression of the form: (error "error message") will be returned. If the message could not be delivered, nil is returned.

Example

    Gamma> a = 5;
    5
    Gamma> b = 6;
    5
    Gamma> send_string(task,string("(+",a," ",b,")"));
    11
    		

See the Common: Controlling the Cascade TextLogger section of the Log Functions chapter in the Cogent Tools Demo and Tutorials book for examples of this function used in context.

See Also

isend, locate_task, send, send_async, send_string_async