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SQLite Concurrent Access
Does SQLite3 safely handle concurrent access by multiple processes
reading/writing from the same DB? Are there any platform exceptions to that?
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Connection pooling options with JDBC: DBCP vs C3P0
...ure which generated load and concurrency against the two to assess their suitability under real life conditions.
DBCP consistently generated exceptions into our test application and struggled to reach levels of performance which C3P0 was more than capable of handling without any exceptions.
C3P0...
C++: const reference, before vs after type-specifier
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No difference as const is read right-to-left with respect to the &, so both represent a reference to an immutable Fred instance.
Fred& const would mean the reference itself is immutable, which is redundant; when dealing with const pointers both Fred const* and ...
Smooth GPS data
I'm working with GPS data, getting values every second and displaying current position on a map. The problem is that sometimes (specially when accuracy is low) the values vary a lot, making the current position to "jump" between distant points in the map.
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Better way of incrementing build number?
...ll script as part of my Xcode build process to increment the build number within the plist file, however it's making Xcode 4.2.1 crash frequently (with an error about the target not belonging to a project; I'm guessing the changing of the plist file is confusing Xcode in some way).
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How to set entire application in portrait mode only?
How do I set it so the application is running in portrait mode only? I want the landscape mode to be disabled while the application is running. How do I do it programmatically?
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Start ssh-agent on login
I have a site as a remote Git repo pulling from Bitbucket.com using an SSH alias. I can manually start the ssh-agent on my server but I have to do this every time I login via SSH.
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'setInterval' vs 'setTimeout' [duplicate]
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setInterval(expression, timeout); runs the code/function in intervals, with the length of the timeout between them.
Example:
var intervalID = setInterval(alert, 1000); // Will alert every second.
// clearInterval(intervalID); // Will clear the timer.
setTimeout(alert, 1000); // Will alert once...
How do I automatically scroll to the bottom of a multiline text box?
I have a textbox with the .Multiline property set to true. At regular intervals, I am adding new lines of text to it. I would like the textbox to automatically scroll to the bottom-most entry (the newest one) whenever a new line is added. How do I accomplish this?
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ssh “permissions are too open” error
I had a problem with my mac where I couldn't save any kind of file on the disk anymore.
I had to reboot OSX lion and reset the permissions on files and acls.
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