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How efficient is locking an unlocked mutex? What is the cost of a mutex?
...ve really a lot of mutexes? Or can I just throw as much mutex variables in my code as I have int variables and it doesn't really matter?
You can throw as much mutex variables into your code as you wish. You are only limited by the amount of memory you application can allocate.
Summary. User-space...
RESTfully design /login or /register resources?
I was designing a web app and then stopped to think about how my api should be designed as a RESTful web service. For now, most of my URI's are generic and might apply to various web apps:
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How to sort a list of strings?
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Basic answer:
mylist = ["b", "C", "A"]
mylist.sort()
This modifies your original list (i.e. sorts in-place). To get a sorted copy of the list, without changing the original, use the sorted() function:
for x in sorted(mylist):
print ...
How to set initial value and auto increment in MySQL?
How do I set the initial value for an "id" column in a MySQL table that start from 1001?
10 Answers
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[ :Unexpected operator in shell programming [duplicate]
My code:
7 Answers
7
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How to step back in Eclipse debugger?
...t to run them successfully is to extend the heap space in eclipse.ini.
In my case I've tried to use JIVE and Diver to debug an XML parsing program but always ended up freezing eclipse due to lack of resources. Diver could be tricky to run on linux 64bit, it works on ubuntu 32bit and possibly other ...
Best dynamic JavaScript/JQuery Grid [closed]
I'm working with JavaScript, JQuery and HTML. UI Of my project is completely dynamic. I am looking for a dynamic JavaScript/JQuery Grid which supports following features.
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How to set a JavaScript breakpoint from code in Chrome?
... Very nice - appears to be Chrome only at this time, but that's my primary platform anyways. Now I just need to remember to stop calling my global debugging flag "debug"...
– brichins
Sep 23 '16 at 21:48
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Preferred method to store PHP arrays (json_encode vs serialize)
...I might occasionally come across the need to convert it to JSON for use in my web app but the vast majority of the time I will be using the array directly in PHP.
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How to test multiple variables against a value?
...r the set version. Tuple's are very cheap to create and iterate over. On my machine at least, tuples are faster than sets so long as the size of the tuple is around 4-8 elements. If you have to scan more than that, use a set, but if you are looking for an item out of 2-4 possibilities, a tuple is...