Package akka.actor.typed.internal
Interface SystemMessage
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- All Superinterfaces:
java.io.Serializable
- All Known Implementing Classes:
NoMessage$
public interface SystemMessage extends java.io.Serializable
System messages are handled specially: they form their own queue within each actor’s mailbox. This queue is encoded in the messages themselves to avoid extra allocations and overhead. The next pointer is a normal var, and it does not need to be volatile because in the enqueuing method its update is immediately succeeded by a volatile write and all reads happen after the volatile read in the dequeuing thread. Afterwards, the obtained list of system messages is handled in a single thread only and not ever passed around, hence no further synchronization is needed.INTERNAL API
NEVER SEND THE SAME SYSTEM MESSAGE OBJECT TO TWO ACTORS
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description SystemMessage
next()
void
next_$eq(SystemMessage x$1)
void
unlink()
boolean
unlinked()
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Method Detail
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next
SystemMessage next()
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next_$eq
void next_$eq(SystemMessage x$1)
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unlink
void unlink()
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unlinked
boolean unlinked()
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