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Is there a timeout for idle PostgreSQL connections?
... with pg perform some dml operation and the then wait for the message over queue and then perform some more dml operation.Now during that period i.e while it is waiting over queue(for message) as mention above even then the connection with postges is idle. why should i close it.
...
Approximate cost to access various caches and main memory?
... description (it clearly pertains to Nehalem as it speaks about the Global Queue which is a Nehalem feature). This Haswell paper has a better description (top right column of page 5)(tu-dresden.de/zih/forschung/ressourcen/dateien/…)
– Lewis Kelsey
Feb 6 '19 a...
How to drive C#, C++ or Java compiler to compute 1+2+3+…+1000 at compile time?
...pes...........................
Called getProcessorFor................
Sum: 5000
Sum: 500500
How do I detect a click outside an element?
...rs a focusout event before triggering a focusin event again.
The fix is to queue the state change on the event loop. This can be done by using setImmediate(...), or setTimeout(..., 0) for browsers that don't support setImmediate. Once queued it can be cancelled by a subsequent focusin:
$('.submenu')...
Convert HTML to NSAttributedString in iOS
...edInteger:NSUTF8StringEncoding)]
dispatch_async(dispatch_get_main_queue()) {
if let attributedString = try? NSAttributedString(data: data, options: options, documentAttributes: nil) {
completionBlock(attributedString)
} else {
print("U...
Signal handling with multiple threads in Linux
...useful:
/*
* Now find a thread we can wake up to take the signal off the queue.
*
* If the main thread wants the signal, it gets first crack.
* Probably the least surprising to the average bear.
*/
if (wants_signal(sig, p))
t = p;
else if (!group || thread_group_empty(p))
/*
...
Random record from MongoDB
...are valid, but for collections where neither matters (one-time server-side batch extract in a collection where records aren't deleted), this is vastly superior to the hacky (IMO) solution in the Mongo Cookbook.
– Michael Moussa
Sep 5 '12 at 16:27
...
When to use lambda, when to use Proc.new?
In Ruby 1.8, there are subtle differences between proc/lambda on the one hand, and Proc.new on the other.
14 Answers
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Resizing UITableView to fit content
...not forget to run it in the main thread:
dispatch_async(dispatch_get_main_queue(), ^{
//This code will run in the main thread:
CGRect frame = self.tableView.frame;
frame.size.height = self.tableView.contentSize.height;
self.tableView.frame = frame;
});
...
How can I properly handle 404 in ASP.NET MVC?
I am using RC2
19 Answers
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