CODEWITHSUNDEEP
c++cfilesystemsvirtual
user1182183
user1182183

Reputation:

C++/C Virtual/Embeddable File System [Cross Compatible (Library)]?

I want to experiment with some Virtual File Systems, like having 1 file in which all data is stored (1 file = virtual disk). For example I can open the virtual disk and put files into it, write data to the files, read data from file, open files and use fseek etc..

Is there any library I can use for that? License stuff etc is not important. I just want to test it on my machine because I'm borred, So I want to try this in C++/C.

Thanks in advance! :)

If the library is windows only then it's also okay, maybe I will find a linux library so I can make 2 projects?

Edit: Thanks to BRPocock I know my question is a bit unclear. What I really want is a library which has the ability to store files, read files, and perform file operations on a VFS which the library already provides. And ofcourse mounting. So, What I would preffer is if there is a library which gives me this functions in C++:

OpenVirtualDrive(const name[]);//
CloseVirtualDrive(handle);//
fopen(const name[], mode);//open file, return handle
fclose(handle);//close handle
ftemp(); //open file as temporary file
fremove(const name[]);//delete file

fwrite(handle, array[]);//write array to file
fread(handle, array[], size = sizeof array, pack = false);//read from file
fputchar(handle, value, utf8 = true);//put char into file
fgetchar(handle, value, utf8 = true);//read char from file, move pointer
fblockwrite(handle, const buffer[], size = sizeof buffer);//write block
fblockread(handle, buffer[], size = sizeof buffer);//read block, move pointer

fseek(handle, position = 0, seek_whence: whence = seek_start);//move pointer
flength(handle);//size of file
fexist(const pattern[]);//check if file exists
fmatch(name[], const pattern[], index = 0, size = sizeof name);//search for file

This is just pseudo code :P

Upvotes: 3

Views: 2316

Answers (1)

BRPocock
BRPocock

Reputation: 13924

Linux (and many BSDs, including, I believe, MacOSX) uses the FUSE system (http://fuse.sourceforge.net/) to provide those kinds of services. You should be able to find many examples on the 'Net.

I believe the “accepted” way to do the same thing on Windows is to write it as a device-driver loadable module (.dll) … a quick Googling points at http://msdn.microsoft.com/en-us/windows/hardware/gg463062 as the starting-point, perhaps.

Upvotes: 4

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