Self Handbook for Self 4.5.0 documentation

Processes and the Prompt

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Processes and the Prompt

Self processes are managed by a simple preemptive round-robin scheduler. Processes can be stepped, suspended, resumed, terminated, or put to sleep for a specified amount of time. Also, the stack of a suspended process can be examined and the CPU use of a process can be determined. A process can be created by sending fork to a message.

The prompt object takes input from stdin and spawns a process to evaluate the message. Input to the prompt is kept in a history list so that past input can be replayed, similar to the history mechanism in many Unix shells.

Modules: process, scheduler, semaphore, prompt, history

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