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fastest (low latency) method for Inter Process Communication between Java and C/C++
...leep(0) (which as strace shows causes a single sched_yield() Linux kernel call to be executed) takes 0.3 microsecond - so named pipes scheduled to single core still have much overhead
Some shared memory measurement:
September 14, 2009 – Solace Systems announced today that its Unified Messaging...
Add a tooltip to a div
... your div the tooltip won't appear. This can be very frustrating... especially if your div looks like it should be clicked. eg: style="cursor: pointer;"
– RayLoveless
Mar 19 '14 at 15:07
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Get UIScrollView to scroll to the top
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UPDATE FOR iOS 7
[self.scrollView setContentOffset:
CGPointMake(0, -self.scrollView.contentInset.top) animated:YES];
ORIGINAL
[self.scrollView setContentOffset:CGPointZero animated:YES];
or if you want to preserve the horizonta...
In a Bash script, how can I exit the entire script if a certain condition occurs?
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@CMCDragonkai, usually any non-zero code will work. If you don't need anything special, you can just use 1 consistently. If the script is meant to be run by another script, you may want to define your own set of status code with particular mea...
Search and replace a line in a file in Python
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I guess something like this should do it. It basically writes the content to a new file and replaces the old file with the new file:
from tempfile import mkstemp
from shutil import move, copymode
from os import fdopen, remove
def replace(file_path, pattern, subst):
#Cr...
Benchmarking small code samples in C#, can this implementation be improved?
Quite often on SO I find myself benchmarking small chunks of code to see which implemnetation is fastest.
11 Answers
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How to define optional methods in Swift protocol?
...an take advantage of powerful generics system.
You can always be sure that all requirements are met when encountering types that conform to such protocol. It's always either concrete implementation or default one. This is how "interfaces" or "contracts" behave in other languages.
Disadvantages
F...
Anatomy of a “Memory Leak”
... seen is in Chapter 7 of the free Foundations of Programming e-book.
Basically, in .NET a memory leak occurs when referenced objects are rooted and thus cannot be garbage collected. This occurs accidentally when you hold on to references beyond the intended scope.
You'll know that you have leaks w...
How to solve Permission denied (publickey) error when using Git?
I'm on Mac Snow Leopard and I just installed git .
45 Answers
45
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Java: How to get input from System.console()
...Console class to get input from user but a null object is returned when I call System.console() . Do I have to change anything before using System.console?
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