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For 0.1
Submit squashfs-tools patches
Build system
Autotools versioning
Currently autoconf 2.68, automake 1.11 tested. Use AC_PREREQ?
Test older versions
libsquashfuse
Separate out a library with a proper API
Try connecting it to File Roller, The Unarchiver, etc
Support win32api?
Debug builds: configure option?
Mac builds
Support specifying SDK, arch, universal builds
Why don't builds on Lion with 10.4 SDK work?
Test suite?
Fully process squashfs_fs.h direct from kernel
Remove [0] lines for Windows
Add __le## for many OSes
Remove function macros
Redefine INVALID_BLK
etc...
Features
Design a good API for libsquashfuse
Use better error codes, error reporting, sanity checks
Support/emulate non-namespaced xattrs, for OS X
Write a clone of unsquashfs using libsquashfuse?
squashfs 3 and earlier support?
LZMA1 compression?
Performance
Multi-threading
Caches, blockidx aren't thread safe
Use a thread pool? Or one thread per request?
Read metadata (eg: UIDs) in parallel?
How do we get FUSE to do multi-threading? On some OSes it just doesn't
Byte swapping
Use platform-specific optimizations (eg: libkern/OSByteOrder.h)
Also arch-specific
Block index: Create incrementally, as needed?
Speculative read-ahead?
Caching and threading strategy delegation?
eg: Small caches for low-memory; huge caches for complete extraction
Profile for optimization opportunities
Misc
mksquashfs is slow, write a faster version?
Platform support
Known bad
QNX 6.5 (qfuse)
fuse_session_add_chan() crashes
High-level crashes too
Windows (fuse4win/dokan)
Dokan sample bluescreens, fuse4win sample crashes
CBFS? Totally different API, expensive
Pismo File Mount?
Explorer Namespace Extension?
FUSE-NT?
7-zip can browse squashfs archives, just not in explorer
Linux kernel < 2.4.20
Requires fuse < 2.4.0. Maybe high-level?
LUFS?
No low-level fuse
Solaris 11 (uvfs/fuse): High-level sort-of works
Minix 3.2 (puffs/refuse): High-level won't work
Haiku (userlandfs): High-level won't work, userlandfs hard to build
Hurd (libfuse): High-level works fine, version 2.5
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