Task Class Reference

A Task instance includes the stack and state information for an individual task. More...

#include <task.h>

Inherits List_node.

Inheritance diagram for Task:

[legend]Collaboration diagram for Task:

[legend]List of all members.

Public Member Functions
void	init ()
Static Public Member Functions
Task *	create ()
Public Attributes
Task_state	curr_state
Task_state	next_state
unsigned volatile	stack
Semaphore *	semaphore

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Detailed Description

A Task instance includes the stack and state information for an individual task.

Because Torsion is a single address space operating system, there is no distinction such at that between processes and threads. A single execution context in Torsion is called a task. And because it's so lightweight, you can think of it as similar to a thread in a traditional multiple address space operating system.

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Member Function Documentation

Task * Task::create (   )  [static]

Create a task object and return it.

void Task::init (   )

Initialize this task by creating a stack for it.

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Member Data Documentation

Task_state Task::curr_state

current state of this task

Task_state Task::next_state

next state that this task will be

Semaphore* Task::semaphore

semaphore waiting on (if any)

unsigned volatile Task::stack

saved task stack pointer

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The documentation for this class was generated from the following files:

• task.h
• task.cc

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Torsion Operating System, Copyright (C) 2000-2004 Dan Helfman