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How do I get a background location update every n minutes in my iOS application?
...ld be enabled (and disabled) again before there is no time remaining to avoid the background task being killed.
This works because location is one of the three allowed types of background execution.
Note: I lost some time by testing this in the simulator where it doesn't work. However, it works...
Cause of a process being a deadlock victim
...ions, that I'm 100% certain in your case is not acceptable.
With 99% confidence I declare that your deadlock is cased by a large table scan conflicting with updates. Start by capturing the deadlock graph to analyze the cause. You will very likely have to optimize the schema of your database. Befor...
PermGen elimination in JDK 8
...r’s
Per loader storage area – Metaspace
Linear allocation only
No individual reclamation (except for RedefineClasses and class loading failure)
No GC scan or compaction
No relocation for metaspace objects
Metaspace Tuning
The maximum metaspace size can be set using the -XX:MaxMetaspaceSize fla...
Emulate ggplot2 default color palette
...65, c = 100)[1:n]
}
For example:
n = 4
cols = gg_color_hue(n)
dev.new(width = 4, height = 4)
plot(1:n, pch = 16, cex = 2, col = cols)
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What's the difference between streams and datagrams in network programming?
...emember where I read it so unfortunately I can't credit the author for the idea, but I've also added a lot of my own knowledge to the core analogy anyway. So here goes:
A stream socket is like a phone call -- one side places the call, the other answers, you say hello to each other (SYN/ACK in TCP)...
Is there a CSS selector for the first direct child only?
...
What you posted literally means "Find any divs that are inside of section divs and are the first child of their parent." The sub contains one tag that matches that description.
It is unclear to me whether you want both children of the main div or not. If so, use this:
div.section &...
C++ Double Address Operator? (&&)
I'm reading STL source code and I have no idea what && address operator is supposed to do. Here is a code example from stl_vector.h :
...
What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?
... in, however, is fine to iterate over an object's property. The OP never said the for in was applied to an Array. The hasOwnProperty is best practice, however there are cases where you don't want it - for example if an object extends another, and you want to list both the objects and the 'parent' on...
vim command to restructure/force text to 80 columns
I know there are ways to automatically set the width of text in vim using set textwidth (like Vim 80 column layout concerns ). What I am looking for is something similar to = (the indent line command) but to wrap to 80. The use case is sometimes you edit text with textwidth and after joining li...
request exceeds the configured maxQueryStringLength when using [Authorize]
...t maxQueryStringLength in web.config is the <httpRuntime> element inside the <system.web> element, see httpRuntime Element (ASP.NET Settings Schema). Try modifying that element.
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