This function is used to create logs for individual tasks. Five pre-defined log

types exist to log response time, release latency, start latency, execution time,

and context switch instances. These are obtained by setting the variable logtype

to any of the constants one to four, respectively. It is also possible to create

five additional log structures for each task (by specifying log type number six).

These user-controlled logs are written to from the code functions using the primitives

ttLogStart, ttLogStop, ttLogNow, and ttLogValue. After the simulation

the logged attributes can be found in Matlab workspace, having the name specified

by variable.

The task log types are