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US 7,013,392 B1Granted
File processing unit
AssigneeFujitsu Limited
InventorsTakaoki Sasaki, Takeshi Hatano, Ryota Akiyama, Seigo Kotani, Takayuki Hasebe
Life of this patent
Estimating the term…
Abstract
A file processing unit comprises a first signature information producing unit that produces first signature information in accordance with a predetermined rule utilizing the data of a file designated by a file close request issued in an application used in a computer system, and a signature information storage control unit that stores the first signature information, correlated with the file designated by the file close request, in a storage unit.
Claims17
A file processing unit comprising:
- a first signature information producing unit that produces first signature information, in response to a close request to close a file, using the data of the file in accordance with a predetermined rule, the file being used in an application that is run in a computer system;
- a signature information storage control unit that correlates the first signature information with the file designated by the close request, and stores the first signature information in a storage unit;
- and
- a folder determining unit for determining whether or not a folder that is designated corresponds to a folder for which predetermined signature processing should be performed on a file stored therein.
1 more element
A file processing unit comprising:
- a second signature information producing unit that produces second signature information, in response to an open request to open a file, using the data of the file in accordance with a predetermined rule, the file being used by an application that is run in a computer system;
- a signature agreement determining unit that determines whether the second signature information is identical to first signature information produced utilizing the data of the file designated by the open request and stored, attached to the designated file, in a storage unit;
- a determination result producing unit that produces information representing a determination result of the signature agreement determining unit, the information being supplied to the application;
- and
- a folder determining unit for determining whether or not a folder that is designated corresponds to a folder for which predetermined signature processing should be performed on a file stored therein.
2 more elements
A file processing unit that is applied to a computer system having a file system that performs processes on a file based on an event issued from an application, said file processing unit comprising:
- a first signature information producing unit that produces first signature information in accordance with a predetermined rule using the data of the file designated by a file close event issued from the application, before the process specified by the file close event is completed in the file system;
- a signature information storage control unit that attaches the first signature information to the file designated by the file close event, and stores the first signature information in a storage unit;
- a first returning unit that performs, after the first signature information is produced, a process for returning to the process for the file specified by the file close event in the file system;
- and
- a folder determining unit for determining whether or not a folder that is designated corresponds to a folder for which predetermined signature processing should be performed on a file stored therein.
2 more elements
A file processing unit that is applied to a computer system having a file system that performs processes on a file based on an event issued from an application, said file processing unit comprising:
- a second signature information producing unit that produces second signature information in accordance with a predetermined rule using the data of the file designated by a file open event issued from the application, before the process specified by the file open event is completed in the file system;
- a signature agreement determining unit that determines whether the second signature information is identical to first signature information produced in accordance with the predetermined rule using the data of the file designated by the file open event and stored, together with the designated file, in a storage unit;
- a determination result producing unit that produces information representing a determination result of the signature agreement determining unit, the information being supplied to the application;
- a second returning unit that passes the information representing the determination result to the file system, and performs a process for returning to the process for the file specified by the file open event in the file system;
- and
- a folder determining unit for determining whether or not a folder that is designated corresponds to a folder for which predetermined signature processing should be performed on a file stored therein.
3 more elements
A file processing unit comprising:
- a first signature information producing unit that produces first signature information, in response to a close request to close a file, using the data of the file in accordance with a predetermined rule, the file being used in an application that is run in a computer system;
- a signature information storage control unit that correlates the first signature information with the file designated by the close request, and stores the first signature information in a storage unit,
- the file processing unit functioning as an external unit connected to the computer system;
- and
- a folder determining unit for determining whether or not a folder that is designated corresponds to a folder for which predetermined signature processing should be performed on a file stored therein.
2 more elements
Dependencies are inferred from the claim text.