Environment:      Siren
Superclass:         SequenceableCollection
Category:         Music-Support
Instance variables:   first last
Indexed variables:   objects
Class variables:      CurrentRecord RecordPool

An SEventQueue is a doubly-linked list that has methods for inserting elements in time-sorted order.
These are used for real-time schedules because they can have faster search methods than using SortedCollections of OrderedCollections for the EventScheduler.
The current implementation uses a simple linear search. For really big schedules, this could be made faster with a binary search or tree-based schedule.

Instance Variables:
   first The first event in the Q
   last The last event in the Q

accessing

add: eventAss
   Add the given eventAssociation to the receiver in the right place.

add: eventAss loop: aBool
   Add the given eventAssociation to the receiver in the right place.

asOrderedCollection
   Answer a copy of the receiver's items

detect: aBlock
   Walk the list looking

do: aBlock
   Refer to the comment in Collection|do:.

includes: sought
   

isEmpty
   

itemNamed: theName
   Answer a copy of the receiver's items

ready: now
   Answer whether there's an event ready within 5000 usec of the given time

removeAllSuchThat: aBlock
   Remove each element for which aBlock evaluates to true.

removeFirst
   Remove and answer the first item from the list.

size
   Answer how many elements the receiver contains.

private

locateSlotFor: start
   Find the proper slot for inserting a new event with the given start time.

printing

printOn: aStream
   Append to the argument aStream a sequence of characters that identifies the receiver.

MetaClass:         SEventQueue class

record pool

initialize
   Set up the class's record pool

nextRecord
   Set up the class's record pool