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How do I change the number of open files limit in Linux? [closed]
...ile. For instance, the hard open file limit on Solaris can be set on boot from /etc/system.
set rlim_fd_max = 166384
set rlim_fd_cur = 8192
On OS X, this same data must be set in /etc/sysctl.conf.
kern.maxfilesperproc=166384
kern.maxfiles=8192
Under Linux, these settings are often in /etc/sec...
Python's time.clock() vs. time.time() accuracy?
...ure, the TC timeout expired and the test case was aborted. I had to switch from time.time() to time.clock() to handle this properly.
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Postgresql: Scripting psql execution with password
...D = postgres psql -h 192.168.3.200 -U postgres incx_um << EOF DELETE FROM usrmgt.user_one_time_codes WHERE time < NOW() - INTERVAL '30 minute' EOF
– Govind Gupta
Aug 14 '18 at 9:37
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How to create border in UIButton?
...
Here's an updated version (Swift 3.0.1) from Ben Packard's answer.
import UIKit
@IBDesignable class BorderedButton: UIButton {
@IBInspectable var borderColor: UIColor? {
didSet {
if let bColor = borderColor {
self.layer.b...
Scala: List[Future] to Future[List] disregarding failed futures
... futures `fs`, returns the future holding the list of Try's of the futures from `fs`.
* The returned future is completed only once all of the futures in `fs` have been completed.
*/
def allAsTrys[T](fItems: /* future items */ List[Future[T]]): Future[List[Try[T]]] = {
val listO...
Python extract pattern matches
...
You need to capture from regex. search for the pattern, if found, retrieve the string using group(index). Assuming valid checks are performed:
>>> p = re.compile("name (.*) is valid")
>>> result = p.search(s)
>>> resul...
What exactly does Perl's “bless” do?
...t context hashmap
};
// the "new" causes the Animal to be unbound from global context, and
// rebinds it to an empty hash map before being constructed. The state is
// now bound to animal, not the global scope.
var animal = new Animal({
'name': 'Jeff',
'sound': ...
Performance surprise with “as” and nullable types
...isn't isinst in this case, but the additional unbox.any. This wasn't clear from Hans' answer, as he looked at the JITed code only. In general, the C# compiler will emit an unbox.any after a isinst T? (but will omit it in case you do isinst T, when T is a reference type).
Why does it do that? isinst...
Is it wrong to place the tag after the tag?
...id, but nevertheless the script will still be interpreted. See the snippet from WebKit for example:
void HTMLParser::processCloseTag(Token* t)
{
// Support for really broken html.
// we never close the body tag, since some stupid web pages close it before
// the actual end of the doc....
How can I delete Docker's images?
...other image is based on this one? Try removing any images that you created from this image first.
– qkrijger
Jan 28 '14 at 23:37
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