My father died recently and I've inherited his Mac. I'd love to put it to use in my own life, but I don't want to wipe its brains out just so I can reconfigure it to use in my network, etc. His old files are historically important to me—I trust you can understand my desire to keep them.
I can log in as I had an account on the machine before he…
I'm looking for real world examples of needing read and write access to the same value in concurrent systems.
In my opinion, many semaphores or locks are present because there's no known alternative (to the implementer,) but do you know of any patterns where mutexes seem to be a requirement?
In a way I'm asking for candidates for the standard…
Hello all, I have a python script and am wondering is there any way that I can ensure that the script run's continuously on a remote computer? Like for example, if the script crashes for whatever reason, is there a way to start it up automatically instead of having to remote desktop. Are there any other factors I have to be aware of? The script…
Say I have these tables:
people(id, name),
cars(person_id, car)
and this query:
SELECT c.car
FROM people as p, cars as c
WHERE c.person_id = p.id
AND p.id = 3
I want the c.car column to take its name from the name field in the people table, like this (invalid SQL, just to illustrate):
SELECT c.car AS(SELECT name FROM people WHERE id =…
I have an array of addresses that point to integers ( these integers
are sorted in ascending order). They have duplicate values. Ex: 1,
2, 2, 3, 3, 3, 3, 4, 4......
I am trying to get hold of all the values that are greater than a
certain value(key). Currently trying to implement it using binary
search algo -
void *bsearch(
const void…
If I run something like Sleep(10000), and the system clock changes during that, will the thread still sleep for 10 seconds of wall-clock time, or less or more? I.e. does the Sleep() function convert milliseconds into hardware ticks?
Sorry... can anybody help me out? I'm a complete neewbiee to tomcat, but I have to set a cookie with the name 'lastlogin' with the actual timestamp as a value.
How am I supposed to do it?
Thanks a lot.
I have an Android App and I would like to start putting non-intrusive advert into the app. However, I have the benefit of knowing exactly what products I would like to put in these adverts (which will basically be amazon "similar products" type things and a few other suppliers). Is there any ad-engine out there that will allow me to do…
I've been reading all over the place (including here) about when exception should / shouldn't be used.
I now want to change my code that would throw to make the method return false and handle it like that, but my question is: Is it the throwing or try..catch-ing that can hinder performance...?
What I mean is, would this be acceptable:
…
I am traversing checkboxes like this:
$('.day').each(function() {
// here I need to get the following 4 text inputs in the HTML
// and set some attributes on them
});
After every checkbox there are four text input fields (there are also some div, span tags for CSS around them). So inside the loop above I need to get four…
Got a great answer earlier, but unfortunately, I didn't explain the WHOLE situation:
I need to rewrite:
blog.domainname.com/archives/YYYY/MM/postname/
and
www.blog.domainname.com/archives/YYYY/MM/postname/
to
www.domainname.com/blog/postname/
Thanks in advance!
I am looking to make a python script be unique in the sense that it can only run once at a time. For example if I run the script and open another session of the same script a second time and the first session is still running, then the second session will just exit and do nothing. Anyone knows how I could implement this?
Hello,
I would like to learn how to develop games. What language is best for that? Java? C#? Ruby? ActionScript?
I would like to develop web based games and possibly mobile games, not desktop games.
How do I create a non-blocking asynchronous function? Below is what I'm trying to achieve but my program is still blocking...
var sys = require("sys");
function doSomething() {
sys.puts("why does this block?");
while(true);
}
setTimeout(doSomething,0);
setTimeout(doSomething,0);
setTimeout(doSomething,0);
sys.puts("main");
I am writing a little install script for some software. All it does is unpack a target tar, and then i want to permanently set some environment variables - principally the location of the unpacked libs and updating $PATH. Do I need to programmatically edit the .bashrc file, adding the appropriate entries to the end for example, or is…
When I load a page with Firebug I can see a list of all the images required by the site.
How can I automate finding a list of the image URLs used by a webpage, including those referenced in external CSS?
From what I can see, CakePHP makes it easy to link to a CSS file in a view with the following:
echo $html->css('my-css-filename',null,array(),FALSE);
But what if I don't want to exclusively use hardcoded files?
How can I get it to create a style tag with some dynamically generated rules in e.g.
<style type="text/css"…
I have multiple active branches that I need to work on at the same time. Clearly I can create two working directories with a distinct branch per directory. Is that the only way to do it without having to "commit" and "checkout" in order to switch from one branch to another?
I am looking to make a python script be unique in the sense that it can only run once at a time. For example if I run the script and open another session of the same script a second time and the first session is still running, then the second session will just exit and do nothing. Anyone knows how I could implement this?
When using jQuery for DOM traversal both of these return the same results (I believe):
$("whatever").find(".foo .bar")
$("whatever").children(".foo").children(".bar")
Which is preferable to use?
Hello,
I'm having a hard time trying to replace this weird right single quote character. I'm using str_replace like this:
str_replace("’", '\u1234', $string);
It looks like I cannot figure out what character the quote really is. Even when I copy paste it directly from PHPMyAdmin it still doesn't work. Do I have to escape it…