trait AtomicIndexFlag extends Signalling
A mixin trait that implements index flag behaviour using atomic integers.
The setIndex operation is wait-free, while conditional set operations setIndexIfGreater
and setIndexIfLesser are lock-free and support only monotonic changes.
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- abstract def abort(): Unit
Sends an abort signal to other workers.
Sends an abort signal to other workers.
Abort flag being true means that a worker can abort and produce whatever result, since its result will not affect the final result of computation. An example of operations using this are
find,forallandexistsmethods.- Definition Classes
- Signalling
- abstract def isAborted: Boolean
Checks whether an abort signal has been issued.
Checks whether an abort signal has been issued.
Abort flag being true means that a worker can abort and produce whatever result, since its result will not affect the final result of computation. An example of operations using this are
find,forallandexistsmethods.- returns
the state of the abort
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- abstract def tag: Int
A read only tag specific to the signalling object.
A read only tag specific to the signalling object. It is used to give specific workers information on the part of the collection being operated on.
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- final def !=(arg0: Any): Boolean
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- def indexFlag: Int
Returns the value of the index flag.
Returns the value of the index flag.
The index flag holds an integer which carries some operation-specific meaning. For instance,
takeWhileoperation sets the index flag to the position of the element where the predicate fails. Other workers may check this index against the indices they are working on and return if this index is smaller than their index. Examples of operations using this aretakeWhile,dropWhile,spanandindexOf.- returns
the value of the index flag
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- AtomicIndexFlag → Signalling
- final def isInstanceOf[T0]: Boolean
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- def setIndexFlag(f: Int): Unit
Sets the value of the index flag.
Sets the value of the index flag.
The index flag holds an integer which carries some operation-specific meaning. For instance,
takeWhileoperation sets the index flag to the position of the element where the predicate fails. Other workers may check this index against the indices they are working on and return if this index is smaller than their index. Examples of operations using this aretakeWhile,dropWhile,spanandindexOf.- f
the value to which the index flag is set.
- Definition Classes
- AtomicIndexFlag → Signalling
- def setIndexFlagIfGreater(f: Int): Unit
Sets the value of the index flag if argument is greater than current value.
Sets the value of the index flag if argument is greater than current value. This method does this atomically.
The index flag holds an integer which carries some operation-specific meaning. For instance,
takeWhileoperation sets the index flag to the position of the element where the predicate fails. Other workers may check this index against the indices they are working on and return if this index is smaller than their index. Examples of operations using this aretakeWhile,dropWhile,spanandindexOf.- f
the value to which the index flag is set
- Definition Classes
- AtomicIndexFlag → Signalling
- def setIndexFlagIfLesser(f: Int): Unit
Sets the value of the index flag if argument is lesser than current value.
Sets the value of the index flag if argument is lesser than current value. This method does this atomically.
The index flag holds an integer which carries some operation-specific meaning. For instance,
takeWhileoperation sets the index flag to the position of the element where the predicate fails. Other workers may check this index against the indices they are working on and return if this index is smaller than their index. Examples of operations using this aretakeWhile,dropWhile,spanandindexOf.- f
the value to which the index flag is set
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- AtomicIndexFlag → Signalling
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- final def wait(arg0: Long, arg1: Int): Unit
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