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How safe is it to store sessions with Redis?
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Redis is perfect for storing sessions. All operations are performed in memory, and so reads and writes will be fast.
The second aspect is persistence of session state. Redis gives you a lot of flexibility in how you want to persist session state to your hard-dis...
Is it possible to force Excel recognize UTF-8 CSV files automatically?
...s. The application always uses UTF-8 because of its multilingual nature at all levels. But opening such CSV files (containing e.g. diacritics, cyrillic letters, Greek letters) in Excel does not achieve the expected results showing something like Г„/Г¤, Г–/Г¶ . And I don't know how to forc...
Why is address zero used for the null pointer?
...emory, because it means freeing the pointer again isn't dangerous; when I call malloc it returns a pointer with the value zero if it can't get me memory; I use if (p != 0) all the time to make sure passed pointers are valid, etc.
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MS-DOS Batch file pause with enter key
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There's a pause command that does just that, though it's not specifically the enter key.
If you really want to wait for only the enter key, you can use the set command to ask for user input with a dummy variable, something like:
set /p DUMMY=Hit ENTER to continue...
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How to play an android notification sound
...also set this to play through STREAM_NOTIFICATION so it is played with the OS current notification volume preference: .setSound(soundUri, AudioManager.STREAM_NOTIFICATION)
– mwk
Aug 4 '14 at 13:49
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Add margin between a RadioButton and its label in Android?
Is it possible to add a little bit of space between a RadioButton and the label while still using Android's built-in components? By default the text looks a little scrunched.
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How to send only one UDP packet with netcat?
...ght as well write
echo -n "hello" >/dev/udp/localhost/8000
and avoid all the idiosyncrasies and incompatibilities of netcat.
This also works sending to other hosts, ex:
echo -n "hello" >/dev/udp/remotehost/8000
These are not "real" devices on the file system, but bash "special" aliases....
How large should my recv buffer be when calling recv in the socket library
...w how big to make the buffer passed to recv()?
SOCK_STREAM: It doesn't really matter too much. If your protocol is a transactional / interactive one just pick a size that can hold the largest individual message / command you would reasonably expect (3000 is likely fine). If your protocol is tran...
Can I get a list of files marked --assume-unchanged?
... unchanged files at the current directory and below. If you want a list of all "assume-unchanged" files in the repository, you'll need git ls-files -v `git rev-parse --show-toplevel` | grep "^[a-z]"
– Trebor Rude
May 15 '13 at 15:43
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When is the finalize() method called in Java?
I need to know when the finalize() method is called in the JVM . I created a test class which writes into a file when the finalize() method is called by overriding it. It is not executed. Can anybody tell me the reason why it is not executing?
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