CN110597738A - Memory release method, terminal and computer readable storage medium - Google Patents
Memory release method, terminal and computer readable storage medium Download PDFInfo
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- CN110597738A CN110597738A CN201910884819.1A CN201910884819A CN110597738A CN 110597738 A CN110597738 A CN 110597738A CN 201910884819 A CN201910884819 A CN 201910884819A CN 110597738 A CN110597738 A CN 110597738A
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- 238000000034 method Methods 0.000 title claims abstract description 62
- 238000004422 calculation algorithm Methods 0.000 claims abstract description 15
- 230000005055 memory storage Effects 0.000 claims abstract description 12
- 238000004590 computer program Methods 0.000 claims description 10
- 238000012217 deletion Methods 0.000 claims description 5
- 230000037430 deletion Effects 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
- G06F12/023—Free address space management
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
- G06F9/5011—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resources being hardware resources other than CPUs, Servers and Terminals
- G06F9/5016—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resources being hardware resources other than CPUs, Servers and Terminals the resource being the memory
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- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The invention discloses a memory release method, a terminal and a computer readable storage medium, belonging to the field of IE browser memory release, and aiming at solving the technical problem of how to release an iframe frame in the condition that the use of the integral frame is not influenced when the iframe frame exists in an IE browser. The method comprises the following steps: for circularly referenced objects, memory storage is built through DOM elements, and additional memory storage is deleted while the DOM elements are deleted; when an object is called between iframe pages in an IE browser through an intermediate object to be newly inserted, marking and deleting the intermediate object; for closed iframe pages, the iframe-based marking algorithm marks unreferenced objects and deletes releases. The processor in the terminal is configured to call the program instructions to execute the method for releasing the memory. The program instructions in the readable storage medium, when executed by the processor, perform a method of freeing memory as described above.
Description
Technical Field
The invention relates to the field of IE browser memory release, in particular to a memory release method, a terminal and a computer readable storage medium.
Background
With the development of internet informatization, government websites, office processes and the like are gradually followed, the number of the websites is increased exponentially, the iframe frame is a mode widely adopted by people in a plurality of websites, and the iframe frame wins the favor of web application developers and is widely applied by the advantages of simplicity, easiness in use, simplicity in deployment and the like. When the pages are continuously switched by using the iframe in the ie browser, the used memory of the iframe frame is always high, the more the iframe page is opened, the larger the memory occupation is, and the memory use is not obviously reduced even if all opened iframe pages are closed. The high memory occupation causes the browser to be jammed and even dead.
How to release the iframe frame within the internal space occupied in the ie browser without affecting the overall frame usage.
Disclosure of Invention
The technical task of the invention is to provide a memory release method, a terminal and a computer readable storage medium for solving the problem of how to release an iframe frame in an ie browser under the condition that the use of the whole frame is not influenced.
In a first aspect, the present invention provides a memory release method for releasing a memory of an iframe frame of an IE browser, where the method includes:
for circularly referenced objects, memory storage is built through DOM elements, and additional memory storage is deleted while the DOM elements are deleted;
when an object is called between iframe pages in an IE browser through an intermediate object to be newly inserted, marking and deleting the intermediate object;
for closed iframe pages, the iframe-based marking algorithm marks unreferenced objects and deletes releases.
Preferably, for circularly referenced objects,
the method comprises the following steps of constructing memory storage through DOM elements, deleting additional memory storage while deleting the DOM elements, and comprises the following steps:
creating an object by the aid of the newly-created DOM element, and simultaneously constructing an example DOM element, wherein the example DOM element is used for storing the object element;
establishing an association relation between the instance DOM element and the newly-built DOM element, and adding the instance DOM element to a reference storage sequence of the newly-built DOM element;
and deleting the corresponding instance DOM element based on the association relation while deleting the newly-built DOM element.
Preferably, when an object is called between iframe pages in an IE browser through an intermediate object to be newly inserted, the marking deletion of the intermediate object is performed, and the method includes the following steps:
configuring a sequence specification before calling an object between iframe pages in an IE browser to create and insert;
based on the sequence specification, creating DOM structures and method attributes of call objects between iframe pages, storing the DOM structures of the call objects into a structure stack, and storing the method attributes of the call objects into a corresponding attribute stack;
creating and marking an intermediate object, and establishing an association relation between a DOM structure of the calling object and the method attribute through the intermediate object;
and finding the corresponding method attribute through the intermediate object, finding the corresponding DOM structure based on the method attribute, and deleting the intermediate object.
Preferably, the association relationship between the DOM structure and the method attribute of the calling object is established through the intermediate object, so as to perform script binding on the intermediate object and the DOM structure and the method attribute of the calling object.
Preferably, for a closed iframe page, marking an unreferenced object and deleting a release based on a marking algorithm of an iframe frame includes:
packaging a marking algorithm of the iframe frame and forming a marking interface;
calling a marking interface and marking through a marking algorithm of an iframe frame for DOM elements which are not referenced in the closed iframe page;
deletion release is performed for marked DOM elements that are no longer referenced.
Preferably, the deleting the intermediate object and the unreferenced object includes deleting a DOM element, a package, and a variable.
In a second aspect, the present invention provides a terminal, including a processor, an input device, an output device, and a storage, wherein the processor, the input device, the output device, and the storage are connected to each other, and the storage is used for storing a computer program, and the computer program includes program instructions, and the processor is configured to call the program instructions to execute a method for releasing a memory according to any one of the first aspect.
In a third aspect, the present invention provides a computer readable storage medium storing a computer program comprising program instructions which, when executed by a processor, perform a method of freeing memory as defined in any one of the first aspects.
The memory release method, the terminal and the computer readable storage medium have the following advantages that: the problem of memory release of the iframe frame web application in the IE kernel browser in circularly referencing the memory, crossing pages and closed pages is solved, and the memory of the browser is circularly used.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a flow chart of a memory release method according to embodiment 1.
Detailed Description
The present invention is further described in the following with reference to the drawings and the specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention, and the embodiments and the technical features of the embodiments can be combined with each other without conflict.
The embodiment of the invention provides a memory release method, a terminal and a computer readable storage medium, which are used for solving the technical problem of how to release an iframe frame in an ie browser under the condition that the use of the integral frame is not influenced.
Example 1:
the memory release method is used for releasing the memory of the iframe frame of the IE browser. The method comprises three working conditions of cleaning a circular reference memory, a cross-page internal memory and a closed iframe page internal memory.
Release of cycle reference memory under working condition one
The circular reference of several users is the root of each leakage, and generally, the IE browser can have a good effect through the memory recovery method of the IE browser, but a sound memory recovery method is not given in the IE browser (below IE 10). To solve the above problem, in this embodiment, a memory storage is built through a DOM element, and an additional memory storage is deleted while the DOM element is deleted, and the specific process is as follows:
s100, creating an object by newly creating a DOM element, and constructing an example DOM element used for storing the object element;
s200, establishing an association relation between the instance DOM element and the newly-built DOM element, and adding the instance DOM element to a reference storage sequence of the newly-built DOM element;
s300, deleting the new DOM element and deleting the corresponding instance DOM element based on the association relation.
The instance DOM element is added to the reference storage sequence of the new DOM element, namely when the association relationship between the instance DOM element and the new DOM element is established, the application program model corresponding to the object element is marked, so that the application program model can always be used for solving the instance DOM element, and the unloading of the file is cleaned.
Working condition two, release of cross-page memory
The new insertion of the call object between iframe pages in the IE browser is almost always created by the intermediate object, and after the creation is completed, the cleaning of the intermediate object is not clean, especially when a script is included in the call object creation process. Aiming at the problems, the invention establishes the incidence relation through the intermediate object after the call objects are established in sequence for the call objects between the iframe-spanning pages, and marks and deletes the intermediate object.
The specific process is as follows:
s100, configuring a sequence specification before calling object new insertion between iframe pages in an IE browser;
s200, based on sequence specifications, creating DOM structures and method attributes of call objects between iframe pages, storing the DOM structures of the call objects into a structure stack, and storing the method attributes of the call objects into a corresponding attribute stack;
s300, creating and marking an intermediate object, and establishing an association relation between a DOM structure of the calling object and a method attribute through the intermediate object;
s400, finding the corresponding method attribute through the intermediate object, finding the corresponding DOM structure based on the method attribute, and deleting the intermediate object.
In step S300, the association relationship between the DOM structure of the invocation object and the method attribute is established through the intermediate object, and is as follows: and performing script binding on the intermediate object and the DOM structure and method attribute of the calling object.
Working condition three, memory with closed iframe page
in order to accelerate loading speed, an IE browser under an iframe frame caches contents and variable methods in the iframe, and the caches cannot be released from a memory even if the IE browser is closed. In order to solve the problem, for the closed iframe page, the marking algorithm based on the iframe marks the unreferenced object and deletes the release. The specific process is as follows:
s100, packaging a marking algorithm of the iframe frame, and forming a marking interface;
s200, calling a marking interface for DOM elements which are not referred to in the closed iframe page any more, and marking through a marking algorithm of the iframe frame;
s300, deleting and releasing marked DOM elements which are not referenced any more.
In this embodiment, the marking algorithm of the iframe frame is g3. gcweikmapc predictor (), the algorithm performs recursive query from the window root to mark objects that can be reached from the root, and unmarked objects are unmarked objects.
And deleting the objects which are not referenced in the working condition III, wherein the deletion of the intermediate objects in the working condition II comprises deleting DOM elements, packages and variables.
According to the invention, by releasing the memory under the three working conditions, the memory occupied by the browser can be reduced when the user uses the IE browser, so that the web application is more smoothly used.
In step S100, a marking algorithm of the iframe frame is encapsulated, and a marking interface is formed, and the encapsulation method adopted is an existing method and will not be described in detail here.
Example 2:
the terminal comprises a processor, an input device, an output device and a memory, wherein the processor, the input device, the output device and the memory are connected with each other, the memory is used for storing a computer program, the computer program comprises program instructions, and the processor is configured to call the program instructions to execute the method for releasing the memory disclosed in embodiment 1.
Example 3:
a computer-readable storage medium of the present invention stores a computer program, the computer program comprising program instructions that, when executed by a processor, the processor performs a method of releasing memory disclosed in embodiment 1.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (8)
1. A memory release method is characterized in that the method is used for releasing the memory of an IE browser iframe frame, and the method comprises the following steps:
for circularly referenced objects, memory storage is built through DOM elements, and additional memory storage is deleted while the DOM elements are deleted;
for the call objects between the cross-iframe pages, establishing an association relation through the intermediate objects after the call objects are sequentially created, and marking and deleting the intermediate objects;
for closed iframe pages, the iframe-based marking algorithm marks unreferenced objects and deletes releases.
2. The memory release method according to claim 1, wherein for circularly referenced objects, a memory storage is built through DOM elements, and additional memory storage is deleted while DOM elements are deleted, comprising the following steps:
creating an object by the aid of the newly-created DOM element, and simultaneously constructing an example DOM element, wherein the example DOM element is used for storing the object element;
establishing an association relation between the instance DOM element and the newly-built DOM element, and adding the instance DOM element to a reference storage sequence of the newly-built DOM element;
and deleting the corresponding instance DOM element based on the association relation while deleting the newly-built DOM element.
3. The method of claim 1, wherein for call objects between iframe-spanning pages, after creating the call objects in sequence, an association relationship is established through intermediate objects, and the intermediate objects are marked and deleted, comprising the following steps:
configuring a sequence specification before calling an object between iframe pages in an IE browser to create and insert;
based on the sequence specification, creating DOM structures and method attributes of call objects between iframe pages, storing the DOM structures of the call objects into a structure stack, and storing the method attributes of the call objects into a corresponding attribute stack;
creating and marking an intermediate object, and establishing an association relation between a DOM structure of the calling object and the method attribute through the intermediate object;
and finding the corresponding method attribute through the intermediate object, finding the corresponding DOM structure based on the method attribute, and deleting the intermediate object.
4. The method according to claim 3, wherein the association relationship between the DOM structure and the method property of the called object is established through an intermediate object, so as to perform script binding on the intermediate object and the DOM structure and the method property of the called object.
5. The method according to claim 1, wherein for a closed iframe page, marking an unreferenced object and deleting the release based on a marking algorithm of an iframe frame comprises:
packaging a marking algorithm of the iframe frame and forming a marking interface;
calling a marking interface and marking through a marking algorithm of an iframe frame for DOM elements which are not referenced in the closed iframe page;
deletion release is performed for marked DOM elements that are no longer referenced.
6. A method of releasing memory as claimed in claim 1, 2, 3, 4 or 5 in which the deletion of intermediate objects and unreferenced objects includes deleting DOM elements, packages and variables.
7. A terminal, characterized by comprising a processor, an input device, an output device and a memory, the processor, the input device, the output device and the memory being interconnected, the memory being adapted to store a computer program, the computer program comprising program instructions, the processor being configured to invoke the program instructions to perform a method of releasing memory according to any of claims 1-6.
8. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program comprising program instructions which, when executed by a processor, the processor performs a method of freeing memory as claimed in any one of claims 1-6.
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| CN111258926A (en) * | 2020-02-26 | 2020-06-09 | 腾讯科技（深圳）有限公司 | Memory recovery method and device, storage medium and computer equipment |
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