What does ephemeron mean?
Definitions for ephemeron
ɪˈfɛm əˌrɒn, -ər ən; -ər əephemeron
This dictionary definitions page includes all the possible meanings, example usage and translations of the word ephemeron.
Princeton's WordNet
ephemeron, ephemeralnoun
anything short-lived, as an insect that lives only for a day in its winged form
Wiktionary
ephemeronnoun
something short lived or transitory
Etymology: From eph- + ἡμέρα.
Wikipedia
Ephemeron
An ephemeron is a data structure that solves two related problems in garbage collected systems. On the one hand, an ephemeron provides a notification when some object is about to be collected. On the other hand, an ephemeron allows data to be associated with some object without creating a reference to that object that will prevent the object from being collected. An ephemeron is a key-value pair, where the key is the object that the ephemeron guards, notifying the system when that object is collectable, and the value can be any data associated with the object such as a property list, and which may be empty. Since the elements of the property list may refer back to the key, they may prevent collection of that key. But the ephemeron is treated specially by the garbage collector. The value field is not traced until the key is found to be reachable from the system roots other than through ephemeron keys. The set of ephemerons whose keys are only reachable from ephemeron keys are then holding onto keys that are ready to be collected; these objects are not reachable from the roots except through ephemerons. When the garbage collector detects such a set, the ephemerons are queued for notification and their keys and values are traced. Hence ephemerons both detect objects that are ready for collection and break the cycles that can prevent objects from being collected.
ChatGPT
ephemeron
An ephemeron is a type of data structure that supports management of memory functions in computer programming. It allows the programmer to handle object allocation efficiently within a garbage collected environment. The term can also refer to something that is transient or short-lived in nature.
Webster Dictionary
Ephemeronnoun
one of the ephemeral flies
Etymology: [NL. See Ephemera.]
Wikidata
Ephemeron
In computer science, finalization occurs when a garbage collector informs an application that an object is "almost collectable." It is used to help an application maintain its invariants. Weak references may be used by a garbage collector to determine the objects that are almost collectable. However, weak references are not sufficient to describe all situations where an object ought to be almost collectable. For example, a key-value pairs may be stored using weak pairs. If a key maps to itself as a value, however, the key cannot be collected. Ephemerons are similar to weak pairs, but an object in an ephemeron's key field may be classed as "almost collectable" even if it is reachable from the ephemeron's value fields.
Matched Categories
Numerology
Chaldean Numerology
The numerical value of ephemeron in Chaldean Numerology is: 1
Pythagorean Numerology
The numerical value of ephemeron in Pythagorean Numerology is: 9
Translations for ephemeron
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"ephemeron." Definitions.net. STANDS4 LLC, 2024. Web. 26 Apr. 2024. <https://www.definitions.net/definition/ephemeron>.
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