Portos works without Tasks, Mailboxes, Semaphores

How it works?

Your critical functions: give them a high priority level, and they will preempt lower priority functions

Easily select the priority level by adding one argument, po_priority:

void rotate_eye(po_priority(HIGH), double angle) {...}

void print_in_background(po_priority(LOW), char *format, int a, int b) {...}

The Portos preprocessor and scheduler will do the rest of the job

There are no inter-task communications

You save stack space, context switches, inter-task messages

Memory footprint is 1 to 2 KB

Super Fast

Novel, extremely fast scheduler (that doesn't use tasks)

Novel and extremely efficient dynamic memory allocation

No interrupt locking (depending on desired version)

Super Easy

The same argument you use to assign a priority level, you can reuse it to assign a time, a signal, a queue:

rotate_eye(po_time(123), 0.5);

search_satellites(po_signal(LOST), Satellites *s, int length);

The above functions are automatically called when time is 123 or when LOST signal is received. They automatically execute at the predefined priority level

If you really need tasks, functions can be quickly grouped (or ungrouped) into supertasks (not yet implemented)

Less number of lines in your code, lower number of bugs, faster time to market

If your project has a unique thread, you can try Portos to easily add priority levels, which allows you to reduce processor speed

Examples

You can see the simplicity and power of Portos by looking at these short examples

Printing in background task

Queue of DMA requests

Supported Platforms

First version is now available as add-on for DSP/BIOS of Texas Instruments. It runs on all DSPs supported by DSP/BIOS.

Standalone version for ARM processor is under development.

C language and MS Windows are currently supported.