MTASK
$29.95

Full source code for the multitasking kernel is provide. As such you can learn the intricacies of writing a preemptive multitasker if you are so inclined. Of course we have the libraries and TSRs pre-built so you can get working right away.

MTASK can execute any desired function or subroutine in the background. That is, through several different threads of execution. The application programmer need not worry about MS-DOS, BIOS, disk contention, and any of the standard DOS re-entrancy problems. MTASK has the ability to multitask several TSRs along with several independent threads within an application at the same time. All tasks can communicate among each other.

The MTASK kernel can be linked into an application to allow several preemptive threads of execution in that one MSDOS application. It may also be used in TSR form allowing one instance to support several multithreaded TSRs along with a multithreaded application.

MTASK includes a monitor utility that displays information on each running thread. It may be used to evaluate the state of independently running multitasking TSRs.

Figure 1

MTASK has both a command line interface and an application program interface. The MTASK TSR can be loaded and unloaded from within the user's application program. This makes interfacing to the TSR completely transparent to the application user.

MTASK provides real intertask communication(ITC). A task can block until it receives its ITC message. Tasks can sleep for a specified period of time or indefinitely until awaken by some other task.

MTASK's API has the following functions