CN117215775A - File scanning method, device, computer equipment and storage medium - Google Patents
File scanning method, device, computer equipment and storage medium Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The invention discloses a file scanning method, a file scanning device, computer equipment and a storage medium, and relates to the technical field of file scanning. The method comprises the following steps: if the mobile hard disk access is detected, a scanning task is created and put into a task queue; reading scanning tasks matched with the threads in number from a task queue according to the set threads in number and setting the scanning tasks as target tasks, wherein one thread is used for processing one scanning task; traversing a target folder corresponding to a target task to identify file types within the target folder, wherein the file types include a first type of file having at least one hierarchy and a second type of file having no hierarchy; creating a new scanning task according to the first type of files, and placing the new scanning task into a task queue; and putting the second type file into the scanning result. The invention can improve the scanning efficiency, reduce the occupation of resources and avoid program breakdown.
Description
Technical Field
The embodiment of the invention relates to the technical field of file scanning, in particular to a file scanning method, a file scanning device, computer equipment and a storage medium.
Background
Playing music and video in a mobile hard disk is a necessary function of a car machine. At present, most of the vehicle-mounted systems generally adopt recursive query when scanning the mobile hard disk, and the time and resources required for scanning are positively correlated with the levels of folders in the mobile hard disk, i.e. the more the levels of folders are, the more the time and resources required for scanning are, the more stack overflow is easily caused, and program crash is caused.
Disclosure of Invention
The embodiment of the invention provides a file scanning method, a device, computer equipment and a storage medium, which aim to solve the problems that the time required for scanning is longer and the occupied resources are more when the existing file scanning method faces more levels of folders.
In a first aspect, an embodiment of the present invention provides a method for scanning a file, where the method includes:
if the mobile hard disk access is detected, a scanning task is created and put into a task queue;
reading scanning tasks matched with the number of threads from the task queue according to the set number of threads and setting the scanning tasks as target tasks, wherein one thread is used for processing one scanning task;
traversing a target folder corresponding to the target task to identify file types within the target folder, wherein the file types include a first type of file having at least one hierarchy and a second type of file having no hierarchy;
creating a new scanning task according to the first type file, and placing the new scanning task into the task queue;
and placing the second type file into a scanning result.
In a second aspect, an embodiment of the present invention further provides a document scanning apparatus, where the apparatus includes:
the first creating unit is used for creating a scanning task if the mobile hard disk access is detected, and placing the scanning task into a task queue;
the first reading unit is used for reading scanning tasks matched with the number of threads from the task queue according to the set number of threads and setting the scanning tasks as target tasks, wherein one thread is used for processing one scanning task;
a first traversing unit, configured to traverse a target folder corresponding to the target task to identify a file type in the target folder, where the file type includes a first type file having at least one hierarchy and a second type file having no hierarchy;
the second creating unit is used for creating a new scanning task according to the first type of files and placing the new scanning task into the task queue;
and the first execution unit is used for placing the second type file into a scanning result.
In a third aspect, an embodiment of the present invention further provides a computer device, which includes a memory and a processor, where the memory stores a computer program, and the processor implements the method when executing the computer program.
In a fourth aspect, embodiments of the present invention also provide a computer readable storage medium storing a computer program which, when executed by a processor, implements the above method.
The embodiment of the invention provides a file scanning method, a file scanning device, computer equipment and a storage medium. Wherein the method comprises the following steps: if the mobile hard disk access is detected, a scanning task is created and put into a task queue; reading scanning tasks matched with the number of threads from the task queue according to the set number of threads and setting the scanning tasks as target tasks, wherein one thread is used for processing one scanning task; traversing a target folder corresponding to the target task to identify file types within the target folder, wherein the file types include a first type of file having at least one hierarchy and a second type of file having no hierarchy; creating a new scanning task according to the first type file, and placing the new scanning task into the task queue; and placing the second type file into a scanning result. According to the technical scheme, when the mobile hard disk is connected, a scanning task is created, the scanning task is placed in the task queue, then a plurality of threads are called to read the scanning task from the task queue to obtain a plurality of target tasks, the processing speed is improved, meanwhile, each thread can identify a first type file and a second type file in a target folder corresponding to the target task when processing the target task, the second type file is placed in a scanning result, a new scanning task is created according to the first type file, the new scanning task is placed in the task queue, the threads can read continuously until files with a plurality of levels do not exist, the occupation of resources is reduced, and program breakdown is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a file scanning method according to an embodiment of the present invention;
FIG. 2 is a schematic block diagram of a document scanning device according to an embodiment of the present invention; and
fig. 3 is a schematic block diagram of a computer device according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
As used in this specification and the appended claims, the term "if" may be interpreted as "when..once" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".
Referring to fig. 1, fig. 1 is a flowchart illustrating a file scanning method according to an embodiment of the invention. The file scanning method provided by the embodiment of the invention is applied to computer equipment, wherein the computer equipment can be control equipment of a vehicle, such as a vehicle-mounted computer, as shown in fig. 1, and the method comprises the following steps S100-S140.
S100, if the mobile hard disk access is detected, a scanning task is created, and the scanning task is put into a task queue.
In the embodiment of the invention, the mobile hard disk can be a USB flash disk or other portable storage devices, and when the vehicle detects that the mobile hard disk is connected, a scanning task is created, and the scanning task is used for scanning the root directory of the mobile hard disk. Preferably, the scan task may be created from a root file path of the mobile hard disk. After the scanning task is created, the scanning task is put into a task queue, wherein a plurality of scanning tasks can be stored in the task queue.
In some embodiments, for example, the step S100 may include the following steps: and acquiring a root folder path of the mobile hard disk, and creating the scanning task according to the root folder path.
In the embodiment of the invention, the root folder of the mobile hard disk refers to the folder when the mobile hard disk is opened for the first time, and the created scanning task is only used for scanning the content in the root folder.
S110, reading scanning tasks matched with the number of threads from the task queue according to the set number of threads and setting the scanning tasks as target tasks, wherein one thread is used for processing one scanning task.
In embodiments of the present invention, multiple threads may be created in a thread pool, one thread handling one scan task. The number of threads can be configured by a user, and the more the number of scanning tasks can be processed simultaneously, the faster the scanning speed. When the scanning tasks are read from the task queue, all threads can sequentially read the scanning tasks from the task queue in sequence, for example, if 3 threads, A, B and C respectively, are configured, the scanning tasks can be read from the task queue in sequence A, B, C. The scanning tasks in the task queue can be arranged according to a first-in first-out sequence, namely the scanning tasks in the task queue are firstly entered, and the scanning tasks are preferentially read by the threads. After all threads read the scanning task, the scanning task is set as a target task.
In some embodiments, for example, the step S110 may include the following steps:
for each thread, reading a scanning task positioned at the first position from the task queue;
and setting the scanning tasks read by all threads as the target tasks.
In the embodiment of the invention, a plurality of threads can be configured in the thread pool, and each configured thread can read a scanning task from a task queue, and the task queue orders the scanning tasks according to the first-in first-out order. When a plurality of threads exist and read for the first time, the plurality of threads can read the scanning tasks in the task queue according to the sequence, and then the threads can continue to read the next scanning task from the task queue after processing one scanning task.
S120, traversing a target folder corresponding to the target task to identify file types in the target folder, wherein the file types comprise a first type file with at least one hierarchy and a second type file without hierarchy.
In the embodiment of the present invention, the first type file has at least one hierarchy, that is, the first type file has at least one sub-directory, and typically, the first type file is a folder. The second type of files have no hierarchy, i.e. the second type of files cannot be spread further, which may be multimedia files, e.g. audio video. It should be noted that when the mobile hard disk is connected, only one scanning task is usually created, and the scanning task is used for processing the root folder of the mobile hard disk, and the first type file and the second type file in the root folder are identified after the root folder is traversed.
S130, creating a new scanning task according to the first type file, and placing the new scanning task into the task queue.
In the embodiment of the invention, the first type file is a file with at least one hierarchy, so that a new scanning task can be created according to the first type file, the new scanning task has the same attribute as the previously created scanning task, and the new scanning task is put into the task queue after the new scanning task is created. When a plurality of first-class files exist, a plurality of new scanning tasks are created and put into a task queue according to the created sequence.
S140, the second type file is placed in a scanning result.
In the embodiment of the invention, the second type files are usually directly usable files, such as audio and video, and can be directly put into the scanning result, so that the second type files can be conveniently opened.
In some embodiments, for example, the method for scanning a file may further include the following steps:
if the user sets monitoring on the second type file, acquiring the type of the target file monitored by the user;
and scanning the scanning result in real time, and opening the file when the file matched with the type of the target file appears in the scanning result.
In the implementation of the present invention, when the user sets the monitoring mode, that is, monitors a certain type of file, for example, the user may set to monitor a file in audio format, and when a file in audio format appears in the scanning result, the file is played. The user can reduce the scanning waiting time by setting the monitoring mode, and when the user wants to listen to the song, the user can terminate the scanning when the audio file is scanned.
In some embodiments, for example, the method for scanning a file may further include the following steps:
storing the scanning result to a local database;
and if the mobile hard disk is detected to be disconnected, the scanning result stored in the local database is cleared.
In the embodiment of the invention, the second type of files generally exist in the scanning result, and the second type of files can be directly used by the vehicle machine, for example, the vehicle machine can directly play the audio files and the video files. The files in the scanning result can be temporarily stored in a local database, so that the direct opening is facilitated. Preferably, each time a second type of file appears in the scan results, the second type of file may be stored in a local database. When the mobile hard disk is disconnected, all files in the scanning result stored in the local database are deleted, so that occupation of space is avoided.
In some embodiments, for example, the method for scanning a file may further include the following steps:
if the user designates the folder to be scanned, traversing the mobile hard disk to inquire the folder to be scanned;
creating a scanning task according to the file to be scanned, and placing the scanning task into the task queue;
and returning to the step of reading the scanning task matched with the thread number from the task queue according to the set thread number and setting the scanning task as a target task.
In the embodiment of the invention, a user can specify to scan a specific folder or scan a specific file. When the user designates the folder to be scanned, the mobile hard disk is traversed to query the folder to be scanned, then a scanning task is created according to the folder to be scanned, and then step S110 is returned. After the scanning of the folder to be scanned is completed, the scanning is terminated, and the scanning speed can be further improved. When a specific file needs to be scanned, the method can be executed according to steps S100-S140, and when the scanning result shows that the file designated by the user appears, the scanning is terminated.
Fig. 2 is a schematic block diagram of a document scanning apparatus 200 according to an embodiment of the present invention. As shown in fig. 2, the present invention further provides a document scanning device 200 corresponding to the above document scanning method. The document scanning apparatus 200 includes a unit for performing the above-described document scanning method, and may be configured in a computer device. Specifically, referring to fig. 2, the document scanning apparatus 200 includes a first creating unit 201, a first reading unit 202, a first traversing unit 203, a second creating unit 204, and a first executing unit 205.
The first creating unit 201 is configured to create a scan task if the mobile hard disk access is detected, and put the scan task into a task queue; the first reading unit 202 is configured to read, from the task queue, a scanning task matching the number of threads according to the set number of threads, and set the scanning task as a target task, where one thread is used to process one scanning task; the first traversing unit 203 is configured to traverse a target folder corresponding to the target task to identify a file type in the target folder, where the file type includes a first type file with at least one hierarchy and a second type file without a hierarchy; the second creating unit 204 is configured to create a new scanning task according to the first type file, and put the new scanning task into the task queue; the first execution unit 205 is configured to put the second type file into a scan result.
In some embodiments, for example, the first creating unit 201 includes a first acquiring unit.
The first obtaining unit is used for obtaining a root folder path of the mobile hard disk and creating the scanning task according to the root folder path.
In some embodiments, for example, the first reading unit 202 includes a second reading unit and a first setting unit.
The second reading unit is used for reading the first scanning task from the task queue for each thread; the first setting unit is used for setting the scanning tasks read by all threads as the target tasks.
In some embodiments, for example, the document scanning device 200 further includes a second setting unit and a first scanning unit.
The second setting unit is used for acquiring the type of the target file monitored by the user if the user sets monitoring on the second type file; the first scanning unit is used for scanning the scanning result in real time, and opening the file when the file matched with the type of the target file appears in the scanning result.
In some embodiments, for example, the document scanning device 200 further includes a first storage unit.
The first storage unit is used for storing the scanning result to a local database.
In some embodiments, for example, the document scanning device 200 further includes a first cleaning unit.
And the first clearing unit is used for clearing the scanning result stored in the local database if the mobile hard disk is detected to be disconnected.
In some embodiments, for example, the document scanning device 200 further includes a second traversing unit, a second creating unit, and a first returning unit.
The second traversing unit is used for traversing the mobile hard disk to inquire the folder to be scanned if the folder to be scanned is designated by the user; the second creating unit is used for creating a scanning task according to the file to be scanned and placing the scanning task into the task queue; the first return unit is used for returning the step of reading the scanning task matched with the thread number from the task queue according to the set thread number and setting the scanning task as a target task.
The above-described document scanning apparatus may be implemented in the form of a computer program which is executable on a computer device as shown in fig. 3.
Referring to fig. 3, fig. 3 is a schematic block diagram of a computer device according to an embodiment of the present invention. The computer device 300 is a device having wireless communication and wired communication.
With reference to FIG. 3, the computer device 300 includes a processor 302, a memory, and a network interface 305, which are connected by a system bus 301, wherein the memory may include a non-volatile storage medium 303 and an internal memory 304.
The non-volatile storage medium 303 may store an operating system 3031 and a computer program 3032. The computer program 3032, when executed, may cause the processor 302 to perform a file scanning method.
The processor 302 is used to provide computing and control capabilities to support the operation of the overall computer device 300.
The internal memory 304 provides an environment for the execution of a computer program 3032 in the non-volatile storage medium 303, which computer program 3032, when executed by the processor 302, causes the processor 302 to perform a file scanning method.
The network interface 305 is used for network communication with other devices. It will be appreciated by those skilled in the art that the structure shown in FIG. 3 is merely a block diagram of some of the structures associated with the present inventive arrangements and does not constitute a limitation of the computer device 300 to which the present inventive arrangements may be applied, and that a particular computer device 300 may include more or less components than those shown, or may combine some of the components, or have a different arrangement of components.
Wherein the processor 302 is configured to execute a computer program 3032 stored in a memory to implement any of the embodiments of the file scanning method described above.
It should be appreciated that in embodiments of the present invention, the processor 302 may be a central processing unit (Central Processing Unit, CPU), the processor 302 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf Programmable gate arrays (FPGAs) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. Wherein the general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
Those skilled in the art will appreciate that all or part of the flow in a method embodying the above described embodiments may be accomplished by computer programs instructing the relevant hardware. The computer program may be stored in a storage medium that is a computer readable storage medium. The computer program is executed by at least one processor in the computer system to implement the flow steps of the embodiments of the method described above.
Accordingly, the present invention also provides a storage medium. The storage medium may be a computer readable storage medium. The storage medium stores a computer program. The computer program, when executed by a processor, causes the processor to perform any of the embodiments of the file scanning method described above.
The storage medium may be a U-disk, a removable hard disk, a Read-Only Memory (ROM), a magnetic disk, or an optical disk, or other various computer-readable storage media that can store program codes.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps described in connection with the embodiments disclosed herein may be embodied in electronic hardware, in computer software, or in a combination of the two, and that the elements and steps of the examples have been generally described in terms of function in the foregoing description to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of each unit is only one logic function division, and there may be another division manner in actual implementation. For example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed.
The steps in the method of the embodiment of the invention can be sequentially adjusted, combined and deleted according to actual needs. The units in the device of the embodiment of the invention can be combined, divided and deleted according to actual needs. In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The integrated unit may be stored in a storage medium if implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, the technical solution of the present invention is essentially or partly contributing to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device to perform all or part of the steps of the method according to the embodiments of the present invention.
In the foregoing embodiments, the descriptions of the embodiments are focused on, and for those portions of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (10)
1. A document scanning method, comprising:
if the mobile hard disk access is detected, a scanning task is created and put into a task queue;
reading scanning tasks matched with the number of threads from the task queue according to the set number of threads and setting the scanning tasks as target tasks, wherein one thread is used for processing one scanning task;
traversing a target folder corresponding to the target task to identify file types within the target folder, wherein the file types include a first type of file having at least one hierarchy and a second type of file having no hierarchy;
creating a new scanning task according to the first type file, and placing the new scanning task into the task queue;
and placing the second type file into a scanning result.
2. The method of claim 1, wherein the step of creating a scan task comprises:
and acquiring a root folder path of the mobile hard disk, and creating the scanning task according to the root folder path.
3. The method of claim 1, wherein the step of reading a scan task matching the number of threads from the task queue according to the set number of threads and setting it as a target task comprises:
for each thread, reading a scanning task positioned at the first position from the task queue;
and setting the scanning tasks read by all threads as the target tasks.
4. The method of claim 1, wherein the method further comprises:
if the user sets monitoring on the second type file, acquiring the type of the target file monitored by the user;
and scanning the scanning result in real time, and opening the file when the file matched with the type of the target file appears in the scanning result.
5. The method of claim 1, wherein the method further comprises:
and storing the scanning result to a local database.
6. The method of claim 5, wherein the method further comprises:
and if the mobile hard disk is detected to be disconnected, the scanning result stored in the local database is cleared.
7. The method of claim 1, wherein the method further comprises:
if the user designates the folder to be scanned, traversing the mobile hard disk to inquire the folder to be scanned;
creating a scanning task according to the file to be scanned, and placing the scanning task into the task queue;
and returning to the step of reading the scanning task matched with the thread number from the task queue according to the set thread number and setting the scanning task as a target task.
8. A document scanning apparatus, the apparatus comprising:
the first creating unit is used for creating a scanning task if the mobile hard disk access is detected, and placing the scanning task into a task queue;
the first reading unit is used for reading scanning tasks matched with the number of threads from the task queue according to the set number of threads and setting the scanning tasks as target tasks, wherein one thread is used for processing one scanning task;
a first traversing unit, configured to traverse a target folder corresponding to the target task to identify a file type in the target folder, where the file type includes a first type file having at least one hierarchy and a second type file having no hierarchy;
the second creating unit is used for creating a new scanning task according to the first type of files and placing the new scanning task into the task queue;
and the first execution unit is used for placing the second type file into a scanning result.
9. A computer device, characterized in that it comprises a memory on which a computer program is stored and a processor which, when executing the computer program, implements the method according to any of claims 1-7.
10. A computer readable storage medium, characterized in that the storage medium stores a computer program which, when executed by a processor, implements the method according to any of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311065623.2A CN117215775A (en) | 2023-08-23 | 2023-08-23 | File scanning method, device, computer equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311065623.2A CN117215775A (en) | 2023-08-23 | 2023-08-23 | File scanning method, device, computer equipment and storage medium |
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| CN117215775A true CN117215775A (en) | 2023-12-12 |
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| CN202311065623.2A Pending CN117215775A (en) | 2023-08-23 | 2023-08-23 | File scanning method, device, computer equipment and storage medium |
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