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Difference between ProcessBuilder and Runtime.exec()
... arguments obtained are then joined up into a string that is passed to the OS to execute.
So, for example, on Windows,
Runtime.getRuntime().exec("C:\DoStuff.exe -arg1 -arg2");
will run a DoStuff.exe program with the two given arguments. In this case, the command-line gets tokenised and put back...
When should one use a spinlock instead of mutex?
...e lock won't be unlocked either. IOW, a spinlock wastes only CPU time on those systems for no real benefit. If the thread was put to sleep instead, another thread could have ran at once, possibly unlocking the lock and then allowing the first thread to continue processing, once it woke up again.
On...
How to have Emacs auto-refresh all buffers when files have changed on disk?
...buffs so that I can manage conflicts myself ( otherwise sometimes I might lose unsaved changes, the way my workflow currently works. )
– Dave
Sep 27 '09 at 0:53
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FFmpeg on Android
... best solution? The Android Build System link is broken - what is that supposed to be? There are a bunch of toolkits to aid in building with the NDK. However they all fail with various build errors for me, and seem a little old. Is there any reason why someone can't just post a built static ffmpeg l...
Why does an image captured using camera intent gets rotated on some devices on Android?
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Most phone cameras are landscape, meaning if you take the photo in portrait, the resulting photos will be rotated 90 degrees. In this case, the camera software should populate the Exif data with the orientation that the photo ...
Java 8 Streams: multiple filters vs. complex condition
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@Juan Carlos Diaz: no, streams don’t work that way. Read about “lazy evaluation”; intermediate operations don’t do anything, they only alter the outcome of the terminal operation.
– Holger
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How do I parse JSON with Objective-C?
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With the perspective of the OS X v10.7 and iOS 5 launches, probably the first thing to recommend now is NSJSONSerialization, Apple's supplied JSON parser. Use third-party options only as a fallback if you find that class unavailable at runtime.
So, for...
When should I use std::thread::detach?
...hread-local objects destructed.
Crucially, this means that the stack of those threads is not unwound and thus some destructors are not executed. Depending on the actions those destructors were supposed to undertake, this might be as bad a situation as if the program had crashed or had been killed. ...
When would I need a SecureString in .NET?
I'm trying to grok the purpose of .NET's SecureString. From MSDN:
11 Answers
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Is it better to use std::memcpy() or std::copy() in terms to performance?
...o go against the general wisdom here that std::copy will have a slight, almost imperceptible performance loss. I just did a test and found that to be untrue: I did notice a performance difference. However, the winner was std::copy.
I wrote a C++ SHA-2 implementation. In my test, I hash 5 strings us...