Method and device for implementing weak reference of pool object

Abstract

The invention relates to a weak reference implementation method oriented to a Pool object. The method comprises the following steps: through a Pool object pool, distributing an object, and setting a unique identification number for the distributed object, wherein the identification number fails when the object is recovered to the Pool object pool; constructing a weak reference accessor, and recording the identification number of the object in the weak reference accessor; and when the object is accessed by the weak reference accessor each time, detecting whether the identification number recorded in the weak reference accessor is consistent with the identification number carried by the object, permitting to access if the weak reference accessor is consistent with the identification number carried by the object, and otherwise, forbidding to access. The method can be adopted to realize a weak reference mechanism on the Pool object. In addition, the invention also provides a weak reference implementation device oriented to the Pool object.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a method and device for implementing weak references oriented to Pool objects. Background technique [0002] Weak reference is a method that is mainly used to isolate and check whether the held reference (pointer) is valid when a certain module of the program owns the ownership of the program object (life cycle control) but other modules need to access the object. [0003] In traditional technology, the lifetime of a program object is controlled by a reference count, the strong reference accessor controls the addition and subtraction of the count, and the weak reference accessor cannot modify the reference count of the object. When the count is not 0, the object is valid, and the weak reference accessor of the object is valid. When the count is 0, the object will be released by the system at the end of its lifetime, and the weak reference accessor is invalid. The weak referenc...

AI Technical Summary

Problems solved by technology

[0004] However, this traditional weak reference implementation method is not suitable for Pool objects. Pool objects refer to program objects that are allocated in the memory pool and can be repeatedly applied for and returned. It is very useful for speeding up memory access and reducing memory fragmentation.

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