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From: Pietro Gagliardi <pietro10@mac.com>
Subject: Re: [9fans] Google search of the day
Date: Thu, 14 Feb 2008 17:09:04 -0500
To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Topicbox-Message-UUID: 546e2dc0-ead3-11e9-9d60-3106f5b1d025

Here's what I think is the best solution: statically allocate the
maximum number of tasks per process:

	struct JobControlBlock { /* the name my OS uses for the info field
of a process (job) */
		Task *mainTask; /* task == thread */
		Task *jobTasks[400]; /* pointers to entry in an array of statically
allocated tasks */
	};

A Task runs a function; it does not continue executing at the current
point. Returning from that function halts the task. Returning from
the main task halts all tasks.

Now a SpawnTask() (fork()) can only be done to create up to 400 tasks
with the exception of the main task.