I'm not sure what the "general" name of something like this might be. I'm looking for a library that gives me a file format to store different types of binary data in an expanding single file.
- open source, non-GPL (LGPL ok)
- C interface
- the file format is a single file
- multiple files within using a POSIX-like file API (or multiple "blobs" within using some other API)
- file/structure editing is done in-place
- reliable first, performant second
Examples include:
Problems with the above:
- whefs doesn't appear to be very mature, but best describes what I'm after
- HDF, CDF, NetCDF are usable (also very reliable and fast), but they're rather complicated and I'm not entirely convinced of their support for opaque binary "blobs"
Edit:
Forgot to mention, one other relevant question:
Simple Virtual Filesystem in C/C++
Another similar question:
Is there an open-source alternative to Windows compound files?
Edit:
Added condition of in-place editing.
Edit:
whefs superseded by: whio_epfs
This appears to do what I was looking for: libgsf
Still need to test its reliability/performance and how cross-platform the binary format is.
It sounds like you're talking about the Linux loopback device, which lets you treat a file on a filesystem as a first-class block device (and then proceed to mkfs, mount, etc.)
(What sort of platform are you targetting? A fully-featured Unixlike? Something in the embedded space with a small footprint?)
The WxWindows library supports ZIP files (see http://docs.wxwidgets.org/stable/wx_wxarc.html#wxarc). This has also the advantage that you can look at the contents using a ZIP manager (e.g. WINZIP).
A commercial alternative is ChillKat (http://www.chilkatsoft.com/)
If security is a concern, encrypt the file contents and mangle the file names in the ZIP archive.
Eet library from the Enlightenment project maybe?
http://en.wikipedia.org/wiki/Enlightenment_Foundation_Libraries#EET http://docs.enlightenment.org/api/eet/html/
What about BerkeleyDB? It's not exactly a filesystem but it's quite transparent to store 'binary data' in a file. License seems to be quite permissive as well.
来源：https://stackoverflow.com/questions/2336804/open-source-embedded-filesystem-or-single-file-virtual-filesystem-or-structure