typelift / concurrent Goto Github PK

Use dispatch_* instead.

Or at least reduce it.

Hey @typelift, your library is really interesting.

The only problem I found was the README.md, which is a little bit confusing.
I created this iOS Open source Readme Template so you can take a look on how to better organize.
If you want, I can help you to organize the lib.

What are your thoughts?

Also move away from Basis-style purity.

Parallel to typelift/Swiftz#165

I'd be cool to also add Cocoapods support. I done this implementation myself last month for my library. Just follow this post and this checklist.

Killed threads do not remove themselves from the reader or writer queue.

In Haskell, I can use System.Timeout from base. How do I do it in Swift?

swift build complains about test directory layout. It's already fixed in master, please make a new release.

/// Atomically, take a value from the `MVar`, put a given new value in the
/// `MVar`, then return the `MVar`'s old value.
public func swap(_ x : A) -> A {
	let old = self.take()
	self.put(x)
	return old
}

The thread using swap might context-switch right after the take completes before the put -- if another thread puts then, this put will block.

Hi,
I am trying to use the STM system to run simultaneous transactions from multiple threads.
Unfortunately it seems either my usage is incorrect, or my understanding of the API is.
Can you please help me out ?

Code :

for _ in 1...3 {
    Thread {
	let _ =
		transfer(from: alice, to: bob, amount: 100)
		.then(transfer(from: bob, to: alice, amount: 20))
		.then(deposit(into: bob, amount: 1000))
		.then(transfer(from: bob, to: alice, amount: 500))
		.atomically()
    }.start()
}

Result :
If fails on this pre-condition

precondition(transactionEnterSucceed, "Transaction already running on current thread")