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close vs shutdown socket?
...'s networking guide. shutdown is a flexible way to block communication in one or both directions. When the second parameter is SHUT_RDWR, it will block both sending and receiving (like close). However, close is the way to actually destroy a socket.
With shutdown, you will still be able to receiv...
How many levels of pointers can we have?
...
276 The implementation shall be able to translate and execute at least one program that contains at least one instance of every one of the following limits: [...]
279 — 12 pointer, array, and function declarators (in any combinations) modifying an
arithmetic, structure, union, or vo...
Resolve promises one after another (i.e. in sequence)?
...2();
})
.then(function() {
console.log(" ---- done ----");
});
}
What about cases with more tasks? Like, 10?
function runSerial(tasks) {
var result = Promise.resolve();
tasks.forEach(task => {
result = result.then(() => task());
});
retu...
Rails find_or_create_by more than one attribute?
...2: Not all of these were factored out of rails just the attribute specific ones.
https://github.com/rails/rails/blob/4-2-stable/guides/source/active_record_querying.md
Example
GroupMember.find_or_create_by_member_id_and_group_id(4, 7)
became
GroupMember.find_or_create_by(member_id: 4, group...
How do you organize your version control repository?
...w to organize it. (SVN in this case).
Here's what we came up with. We have one repository, multiple projects and multiple svn:externals cross-references
...
Understanding recursion [closed]
...e containing five flowers?
Answer: if the vase is not empty, you take out one flower
and then you empty a vase containing four flowers.
How do you empty a vase containing four flowers?
Answer: if the vase is not empty, you take out one flower
and then you empty a vase containing three flowers.
...
How to convert Linux cron jobs to “the Amazon way”?
... that our services can be complex and daunting to both beginners
and seasoned developers alike. We are always happy to offer
architecture and best practice advice.
Best regards,
Ronan G. Amazon Web Services
sh...
How to do parallel programming in Python?
...an do generic work for you. Since we did not pass processes, it will spawn one process for each CPU core on your machine. Each CPU core can execute one process simultaneously.
If you want to map a list to a single function you would do this:
args = [A, B]
results = pool.map(solve1, args)
Don't u...
Among $_REQUEST, $_GET and $_POST which one is the fastest?
...choose $_GET or $_POST -- depending on what my application should do (i.e. one or the other, but not both) : generally speaking :
You should use $_GET when someone is requesting data from your application.
And you should use $_POST when someone is pushing (inserting or updating ; or deleting) data...
How to list all the available keyspaces in Cassandra?
I am newbie in Cassandra and trying to implement one toy application using Cassandra. I had created one keyspace and few column families in my Cassandra DB but I forgot the name of my cluster.
...