Based on TRVSMonitor.

It uses the same sort of synchronisation construct as TRVSMonitor, but the condition is based on receiving all signals from a given collection of identifiers.

To create an RBMonitor, it needs to be initiated with a collection of identifiers. The collection must conform to the protocol NSFastEnumerator. This allows for all collection NS prefixed types. This includes NSDictionary. For NSDictitionary the keys will be used.

A simple initiation example

self.monitor = [[RBMonitor alloc] initWithIdentifers:@( identifier1, identifier2, identifier3 )];

To then start waiting

[self.monitor wait]

Or to start waiting for a certain amount of time

[self.monitor waitForInterval:10.0];

To signal the monitor

[self.monitor signalWithIdentifier:identifier1];

There a few properties that can be used to test against. Say signals were fired like so

[self.monitor signalWithIdentifier:identifier1];
[self.monitor signalWithIdentifier:identifier1];
[self.monitor signalWithIdentifier:identifier1];
[self.monitor signalWithIdentifier:identifier2];
[self.monitor signalWithIdentifier:identifier2];

allReceivedIdentifers gives all the received identifiers that have been signalled to RBMonitor in the order they were received.

> (
    identifier1,
    identifier1,
    identifier1,
    identifier2,
    identifier2,
 )

receivedIdentifiers gives the identifiers that have been signalled. Identifiers only appear once.

> (identifier1, identifier2)

waitingOnIdentifiers gives the identifiers that have not be signalled yet.

> (identifier3)