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fastest (low latency) method for Inter Process Communication between Java and C/C++
...00 nanoseconds using a shared memory transport.
http://solacesystems.com/news/fastest-ipc-messaging/
P.S. - tried shared memory next day in the form of memory mapped files,
if busy waiting is acceptable, we can reduce latency to 0.3 microsecond
for passing a single byte with code like this:
...
Parse XML using JavaScript [duplicate]
...', and 'p' in a variable called txt
txt = `
<address xmlns:p='example.com/postal' xmlns:s='example.com/street' xmlns:sn='example.com/streetNum'>
<s:street>Roble Ave</s:street>
<sn:streetNumber>649</sn:streetNumber>
<p:postalcode>94025</p:postalcode&g...
Rails create or update magic?
... User.where(name: "Roger").first_or_initialize
user.email = "email@example.com"
user.save
Alternatively, you can use find_or_initialize_by.
user = User.find_or_initialize_by(name: "Roger")
In Rails 3.
user = User.find_or_initialize_by_name("Roger")
user.email = "email@example.com"
user.save
...
NodeJS - Error installing with NPM
...
As commented below you may not need to install VS on windows, check this out
https://github.com/nodejs/node-gyp/issues/629#issuecomment-153196245
UPDATED 02/2016
Some npm plugins need node-gyp to be installed.
However, node-...
Automatically deleting related rows in Laravel (Eloquent ORM)
...
I believe this is a perfect use-case for Eloquent events (http://laravel.com/docs/eloquent#model-events). You can use the "deleting" event to do the cleanup:
class User extends Eloquent
{
public function photos()
{
return $this->has_many('Photo');
}
// this is a reco...
Disable ScrollView Programmatically?
...chEvent method to return false when some condition is matched.
The Gallery component scrolls horizontally regardless of whether it is in a ScrollView or not - a ScrollView provides only vertical scrolling (you need a HorizontalScrollView for horizontal scrolling)
You seem to say you have a problem w...
Mongoose (mongodb) batch insert?
...
groups.google.com/forum/#!topic/mongoose-orm/IkPmvcd0kds Says it all really.
– arcseldon
Jul 24 '14 at 19:20
...
Programmatically register a broadcast receiver
...
It sounds like you want to control whether components published in your manifest are active, not dynamically register a receiver (via Context.registerReceiver()) while running.
If so, you can use PackageManager.setComponentEnabledSetting() to control whether these co...
How to run Nginx within a Docker container without halting?
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Understanding promises in Node.js
...y two events: success and error.
The cool thing about promises is you can combine them into dependency chains (do Promise C only when Promise A and Promise B complete).
By removing them from the core node.js, it created possibility of building up modules with different implementations of promises ...