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File system simulation
Posted Date: 19 Mar 2008 Resource Type: Articles/Knowledge Sharing Category: General
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Posted By: Aparanjitha Member Level: Gold
Rating:  Points: 5
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Title of the project
File system simulation
Abstract of the project
The project involves creation of a virtual file system. The project would require creation and manipulation of various data structures to store the contents of the file system. There should be a programmer-level library of functions (API) like my_create, my_delete, my_open, my_close, my_read, my_write, etc to simulate file system operations. The APIs will work on this simulated file system. The file system can model an existing system such as Unix/Windows or you can invent your own.
Keywords
Generic Technlogy keywords
Operating Systems, Programming
Specific Technology keywords
Unix, Windows, C, C++, Java
Project type keywords
Analysis, Design, Implementation, Testing
Functional components of the project
Following is a list of functionalities to be supported by this virtual file system. More functionalities can be added to this list. And, in places where the description of a functionality is not adequate, you can make appropriate assumptions and proceed.
1.Provide a programmer-level library of functions (API) like my_create, my_delete, my_open, my_close, my_read, my_write, etc to simulate file system operations. The APIs will work on a simulated file system. You could either model your file system on an existing system (e.g. Unix, Dos, etc) or invent your own. Your system should provide support for directory hierarchies.
2.You should allocate a large file on the actual file system, and treat it as a virtual disk for your file system simulation. In order to implement your API, you would create and manipulate various data structures on your virtual disk to create and manage your file system. For manipulating your file system's data on the virtual disk, you can use C file functions such as fopen, fread, fwrite or corresponding java functions.
3.For demonstration of the use of your APIs, you will need to write simple user level commands or small programs that use your APIs. The commands should allow navigation of this file system and creation/removal/editing of entries in the file system. A command for listing the contents of a particular node in the file system is also required at a minimum.
4.You need to implement only one mechanism each for free-space management, data access, and some simple security mechanism, but you must do the analysis for how it compares with other alternative strategies for the same.
5.The file should support an hierarchical organization of data
Steps to start-off the project
The following steps will be helpful to start off the project.
1.Study and be comfortable with technologies such as
a.Windows OS and File system, C/C++/Java programming (emphasis on file handling)
b.Unix/Linux OS and file system, C/C++/Java programming (emphasis on file handling)
2.Study in detail the design of a file system for an OS such as Windows or Linux.
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