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Does anyone know of any libraries that decode one or more of the multitude of different scuba dive computer log file formats?
DAN DL7
IRIS / DRAK
Suunto
Oceanlog
Citizen
ProDive
NiTek Logic
DCDS
Ideally I'm looking for code that'll run in .NET, but I'm willing to transcode from other languages if that's the only option.
Links to articles describing formats is appreciated as well. Sample log files would be handy.
I'm considering creating an open source project for this if no such library already exists. If you'd like to contribute, please mention so as a comment or in your answer.
I have no experience with this but Google turned up the library libdivecomputer.
It supports a number of devices and platforms, and the library is LGPL licensed. However, not all brands you mention appear to be supported.
You can always try contacting the manufacturers to get the data. You might have better luck contacting the engineers specifically, if you can find them.
I don't know much about the industry, but I would suspect you can make a case for opening up their formats, because they are primarily hardware manufacturers.
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trying to get my own filesystem working using fuse (filesystem in user space, linux) im really curious on where to get detailed up to date documentation of the operations used?
most time i search for other file system implementations and see what they do, but some operations seem to be not widely used like poll/ioctl or bmap.
and the documentation of the fuse api doesnt help much, cause e.g. the parameters and return values of the operations are not documented thus i have to guess how to use em
so the question is where do i get better information about how such exotic operations are supposed to be implemented?
thx
Yes, you are right, many places you can read that comment saying there is little documentation on FUSE. Perhaps that's because there is so little to document. Or perhaps the implementation is only meant for those who understand the tradeoff of userspace filesystem well enough. So perhaps you can refer to the following documentation, tutorials, slides or even sample codes for more information:
FUSE Design Document (original documentation from Sun?):
http://www.youblisher.com/p/31627-fuse/
http://wr.informatik.uni-hamburg.de/_media/research/labs/2008/2008-03-michael_kuhn-container_library_and_fuse_container_file_system-report.pdf
http://www.oug.org/files/presentations/losug-fuse.pdf
http://sar.informatik.hu-berlin.de/teaching/2013-w/2013w_osp2/lab/Lab-4-FUSE/lab-FUSE_.pdf
http://www.cs.hmc.edu/~geoff/classes/hmc.cs135.201001/homework/fuse/fuse_doc.html (tutorials)
http://www.cs.cmu.edu/~./fp/courses/15213-s07/lectures/15-filesys/index.html
http://www.cs.nmsu.edu/~pfeiffer/fuse-tutorial/
Sample code:
http://fuse.sourceforge.net/helloworld.html
And perhaps this is more research-oriented:
http://www.msrsas.org/docs/sastech_journals/archives/May2011/2.pdf
https://code.google.com/p/s3fs/wiki/FuseOverAmazon
But generally there is a lot of problems/issues (which may be solved through some complex algorithm) with implementing filesystem in userspace, which is why Linus has commented it as "toy":
https://ceph.com/dev-notes/linus-vs-fuse/
15Apr2015 update:
I just found this (and many other slides - just look at the right hand side of this webpage):
http://www.slideshare.net/adorepump/fuse-developing-fillesystems-in-userspace
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We have a commercial application created on CakePHP. I'm about to install it on a client's server, so we'd like to protect my code from being modyfied and/or copied and reselled, changing trial period terms, etc.
I want to know if obfuscating the Cake PHP code breaks Cake specific libraries, or make the application unusable.
I've been searching on this forum and over internet and found several options for obfuscating PHP code, but none related to CakePHP. (I just asked to some of the commercial tools providers if they support Cake obfuscating but haven't received an answer yet).
Does anybody know if this is possible or if there's a better approach to do that?
I'll try to use one of the trial versions of the commercial tools this weekend, but if someone has an advice about this would be great
My company, Semantic Designs, is one of the commercial vendors.
With a decent obfuscator (ahem :) you shouldn't have any trouble doing this. You need to tell the obfuscator somehow (with ours you just provide a list of symbol names) what identifiers have to be retained as cleartext (e.g., any calls to the CakePHP framework), and any public APIs your software may offer.
I'd recommend, you give it a shot and try it out.
Usually, an obfuscator should obfuscate frameworks, too. It should be independent of what kind of PHP Code you use.
Test it in a test environment. If it's successful, you can enroll it to your production environment.
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I am developing a web based opensource project. I was considering the AGPL v3, but I explicitly want to prevent commercial use. Non-profit orgs are welcome to use it for free.
It seems to be a common thing in the software world, but I am looking for a pre-written license that I could use or adapt.
Any ideas where I can find such a thing? Are there accepted opensource licenses that fit this criteria?
It is not a good idea to use such a license, because it is sometimes very hard to draw the line between commercial and non-commercial, especially juridically.
However, you may check out Creative Commons licenses.
You won't find any open source licenses that prevent commercial use. That's against the spirit of open source and wouldn't fit into the definition of open source.
There cannot possibly be such a license. Forbidding the use of the source code is the exact opposite of open source. Ergo, there cannot ever possible be an open source license which has such a restriction, and a license which has such a restriction cannot ever possibly be an open source license.
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I am relatively new to programming, but I enjoy it a lot. I was told that contributing to opensource projects is a good way to learn a lot more. Anywyas, I was wondering if anybody knew what projects I could contribute to--even if I play a small role any experience would be appreciated.
My background is C and Java. I prefer working with C though.
Thanks!
Joey
Well, probably you should contribute to a project you already use.
Go to sourceforge and look for a project you like. You'll be no use to anyone unless you have a personal interest in the software. Pick a project you use in your daily work and play and make it better. Start with a smaller project as you'll likely get a better reception than trying to work on Firefox or the Linux kernel.
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Is there any open source Object Database available? I would like to have a look at the source code and see how stuffs are implemented.
http://www.zope.org/Wikis/ZODB is the first coming to mind, but here's a list of both commercial and open source object databases:
http://www.odbms.org/vendors.html
db4o is my favorite.
You probably want to take a look at Magma, a Smalltalk OODB inspired by Gemstone.
Magma is an OODB with full source in Squeak Smalltalk. See http://wiki.squeak.org/squeak/2665. Even if you want to use a different implementation language, reading the code should be helpful. There is an active mailing list, where questions are answered quickly.
Gemstone is probably the largest OODB company, with the best track-record. It used to be very expensive, but they introduced a free but not open source version for small (4GB) databases recently in their GLASS (Gemstone, Linux, Apache and Seaside) offering.
Prevayler is one of them.
CouchDB is a document database, much the same thing as an object one.