I represent an independent path of control in the system. This path of control may be stopped (by sending the message suspend) in such a way that it can later be restarted (by sending the message resume). When any one of several paths of control can be advanced, the single instance of ProcessorScheduler named Processor determines which one will actually be advanced partly using the value of priority.

(If anyone ever makes a subclass of Process, be sure to use allSubInstances in anyProcessesAbove:.)

	changing process state
	primitiveResume resume suspend terminate

	changing suspended state
	install: popTo:

	debugging
	debug debugWithTitle:

	error handling
	errorHandler errorHandler:

	objects from disk
	objectForDataStream:

	printing
	browserPrintString browserPrintStringWith: printOn:

	private
	suspendedContext:

	accessing	top
	isSuspended
	offList Inform the receiver that it has been taken off a list that it was suspended on. This is to break a backpointer.
	priority Answer the priority of the receiver.
	priority: Set the receiver's priority to anInteger.
	suspendedContext Answer the context the receiver has suspended.
	suspendingList Answer the list on which the receiver has been suspended.

	changing process state	top
	primitiveResume Primitive. Allow the process that the receiver represents to continue. Put the receiver in line to become the activeProcess. Fail if the receiver is already waiting in a queue (in a Semaphore or ProcessScheduler). Essential. See Object documentation whatIsAPrimitive.
	resume Allow the process that the receiver represents to continue. Put the receiver in line to become the activeProcess. Check for a nil suspendedContext, which indicates a previously terminated Process that would cause a vm crash if the resume attempt were permitted
	suspend Primitive. Stop the process that the receiver represents in such a way that it can be restarted at a later time (by sending the receiver the message resume). If the receiver represents the activeProcess, suspend it. Otherwise fail and the code below will remove the receiver from the list of waiting processes. Essential. See Object documentation whatIsAPrimitive.
	terminate Stop the process that the receiver represents forever.

	changing suspended state	top
	install: Replace the suspendedContext with aContext.
	popTo: Replace the suspendedContext with aContext, releasing all contexts between the currently suspendedContext and it.

	debugging	top
	debug
	debugWithTitle: Open a debugger on me

	error handling	top
	errorHandler
	errorHandler:

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	objectForDataStream: I am not allowed to be written on an object file.

	printing	top
	browserPrintString
	browserPrintStringWith:
	printOn: Append to the argument, aStream, a sequence of characters that identifies the receiver.

	private	top
	suspendedContext:

	instance creation	top
	forContext:priority: Answer an instance of me that has suspended aContext at priority anInteger.