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A circular file system and file location method

A technology for recycling files and firmware, applied in the direction of input/output to record carriers, etc., can solve the problems of unsatisfactory fast positioning file performance, memory occupation, complexity, etc., achieve a complete balance of read and write operations, reduce memory occupation, and small memory Effect

Active Publication Date: 2020-01-03
武汉励行科技有限公司
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Problems solved by technology

[0002] The file system is the method and data structure used by the operating system to specify the files on the storage device (commonly disk, there are also NAND Flash-based solid-state drives) or partitions; that is, the method of organizing files on the storage device, the file system includes FAT ( File Allocation Table, file configuration table) file system, NTFS (New Technology File System, new technology file system), EXT (Extended file system, extended file system) and other stand-alone file systems. Stand-alone file systems usually have relatively complete functions and good reliability. Therefore, it is generally more complicated. Mounting application systems requires a large amount of memory, and the performance of quickly locating files is not ideal. It is necessary to access nodes at various levels of the file system and load and expand internal structures such as FAT tables, clusters, and blocks to locate The final file location is used for read and write operations, so a file system that can reduce memory footprint and achieve fast positioning is needed

Method used

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  • A circular file system and file location method
  • A circular file system and file location method
  • A circular file system and file location method

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] In order to solve the problems in the prior art, an embodiment of the present invention provides a circular file system and a file location method.

[0042] see figure 1 , figure 1 A circular file system provided by an embodiment of the present invention includes a fixed data area and a running data area, wherein,

[0043] The fixed data area 11 is used to store the inherent information of the master boot record MBR and the memory where the circular f...

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Abstract

The invention provides a circular file system and a file positioning method, the circular file system comprises a fixed data area and a running data area, and the fixed data area is used for storing inherent information of a main boot record (MBR) and a memory where the circular file system is located; the operation data area comprises a data sub-partition, and the data sub-partition comprises a first index area; And the first index area is used for circularly positioning the read-write position of the to-be-read-write operation data in the data sub-partition. By applying the embodiment of theinvention, the memory occupation of the file system is reduced, and the read-write position is quickly positioned.

Description

technical field [0001] The invention relates to the field of file systems, in particular to a circular file system and a file positioning method. Background technique [0002] The file system is the method and data structure used by the operating system to specify the files on the storage device (commonly disk, there are also NAND Flash-based solid-state drives) or partitions; that is, the method of organizing files on the storage device, the file system includes FAT ( File Allocation Table, file configuration table) file system, NTFS (New Technology File System, new technology file system), EXT (Extended file system, extended file system) and other stand-alone file systems. Stand-alone file systems usually have relatively complete functions and good reliability. Therefore, it is generally more complicated. Mounting application systems requires a large amount of memory, and the performance of quickly locating files is not ideal. It is necessary to access nodes at various lev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
Inventor 贾小林通肖迪何小月
Owner 武汉励行科技有限公司
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