Ensure that calling cancel() deallocates the subscription

What's Changed

• Ensure that calling cancel() deallocates the subscription by @marcusficner in #11

0.1.7 Avoid last request after cancellation

The while infinite loop performs a last request after the cancellation, because the process will be waiting already inside the while block, paused in the semaphore.

When cancellation comes, this last request was (wrongly) executed, an undesired side-effect. With this small fix, right after semaphore signalling, we check again for possible cancellation/completion before starting the request.

Fix retain cycle

Fixes a memory leak that can be caused by a network error.

Mock to conform with the protocol it's mocking

v0.1.5

Make mock conform to the protocol it's mocking (#8)

Long Polling no longer depends on NetworkExtensions

v0.1.4

Remove RESTClient dependency (#7)

Long Polling Session to require timeout vars on its contract

v0.1.3

Enforce long polling session to have timeout vars too (#6)

Invert dependency with NetworkExtensions

Now this library depends on NetworkExtensions, not the other way round

Bugfixes and improvements

Fixes a crash in DispatchSemaphore

initial release

Initial release.