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Closed 10 years ago.
What happens internally when I mount a file system on UNIX using the following command:
mount -t ext3 /dev/sda1 /home/users
Please give references (articles, books etc.)
Consider your position: do you want to read this? Can you read this?
http://freebsd.active-venture.com/FreeBSD-srctree/newsrc/ufs/ffs/ffs_softdep.c.html
It is McKusick's base code for the ffs file system, which is generally considered the parent of modern
UNIX file systems. There is no finer detail than reading source.
The reason I posted: when I taught this stuff long ago, there was a text, and then I presented example code. Students seemed to get a lot out of it... those who actually worked on the material, to be more correct.
In this case the ffs.c code was kind of a defacto model. So it provides a how-we-got-here-from-there.
Now all you need to do is get this:
http://www.amazon.com/Linux-Device-Drivers-Jonathan-Corbet/dp/0596005903/ref=sr_1_1?s=books&ie=UTF8&qid=1354930353&sr=1-1&keywords=linux+drivers
Then ultimately download code for ext3. And read it.
Related
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 9 years ago.
I have two xmls, say Sample1.xml and Sample2.xml. Now I need to compare both the xml values (parent nodes, child nodes, attributes and its values) and return the differences between them in xquery. I knew I can use deep-equal function to say if the xmls are identical. But I do not know how to compare and return the xml difference.
Please help.
Thanks,
-N
Depending on the degree of generality we're talking about here, this is a non-trivial problem (PDF). If your question is, "how do I write this algorithm," then it's way too open-ended for StackOverflow (see the FAQ). If, on the other hand, you are asking, "Is there any XQuery library code out there that will do this," then it appears that simply Googling "XML difference XQuery" will lead you straight to the answer. Faster, even, then having someone else do the Googling for you on Stack Overflow.
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 10 years ago.
I've been asked to model my application. I'm not clear what this means, Perhaps something related to the architecture of my project?. Does it mean giving them a break-up of the classes? Or something like building a use-case or class diagram? Or perhaps something else?
EDIT: I cannot ask them!
I'd go with UML (Unified Modelling Language). It allows you to lay out classes, methods, inheritance, etc. in a graphical format.
A quick Google search gives this FOSS option:
Umbrello UML Modeller
EDIT: Just realized that's linux-only, so here's the Wikipedia page for a whole bunch of other options.
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 10 years ago.
I'm trying to create a directory structure, with folders,similar to Windows Explorer, with R. Someone can help me with this ?
Thank you
If you want this for visualizing things within R, rather than directories on your disk (in which case you can use choose.dir or similar tools as suggested), then look at the TkListView function in the TeachingDemos package to see if that is the functionality that you want. If the TkListView function itself does not do what you want, but gives the correct display, then you can look at the code for the function (it is only R code, other than the Tk calls) and see if you can modify it to do what you want.
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 11 years ago.
all. I downloaded the Qt source, and then proceeded to start building it on a Mac. At the moment, it's been four hours. Is it supposed to take this long? If not, what am I doing wrong? It's just building, building, building, building.... And using a lot of resources. It's confusing.
Yes, it is meant to take this long.
You should consider the use of parallel make.
make -j4 uses 4 CPUs.
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 10 years ago.
explain session type =sql server'
That allows session data to be stored in SQL Server. See this knowledge base article for a fuller description of the procedure.
It's used to determine where you store your session variables, in this case a SQL Server.
You can read more about it here.
EDIT: And even more here.
Here is a nice article about Exploring Session in ASP.Net. Have you ever used Google? We are more than welcome to help newbies but questions in this format is not encouraged ;-) Please explain more about your requirement.