A result depending on the receiving task, which could include:
t if the message was delivered successfully.
nil if the message could not be delivered.
An expression in the form: (error "error message") if there was an error. See error.
This function constructs an ASCII string representing the s_exp and transmits it via synchronous interprocess communication to the receiving task. The task processes the message and returns a result based on that processing. If the task is another Gamma process, the message will be interpreted as a Gamma expression and evaluated. The return value will be the result of that evaluation.
Task 1:
Gamma> init_ipc ("a","a");
t
Gamma> tsk = locate_task("b",nil);
#<Task:9751>
Gamma> send(tsk, #princ("hello\n"));
hello
t
Gamma> send_async(tsk, #princ(cos(5), "\n"));
t
Gamma> send(tsk, #princ("goodbye\n"));
t
Gamma>
Task 2:
Gamma> init_ipc ("b","b");
t
Gamma> while(t) next_event();
hello
0.28366218546322624627
goodbye
See the GTK: Preparing Plots section or the Common: Starting and Stopping the Cascade TextLogger section or 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.