[v0.6.0] Add stop and extract

Bluejay.podspec

@@ -1,12 +1,12 @@
 Pod::Spec.new do |spec|
   spec.name = 'Bluejay'
-  spec.version = '0.5.1'
+  spec.version = '0.6.0'
   spec.license = { type: 'MIT', file: 'LICENSE' }
   spec.homepage = 'https://github.com/steamclock/bluejay'
   spec.authors = { 'Jeremy Chiang' => 'jeremy@steamclock.com' }
   spec.summary = 'Bluejay is a simple Swift framework for building reliable Bluetooth apps.'
   spec.homepage = 'https://github.com/steamclock/bluejay'
-  spec.source = { git: 'https://github.com/steamclock/bluejay.git', tag: 'v0.5.1' }
+  spec.source = { git: 'https://github.com/steamclock/bluejay.git', tag: 'v0.6.0' }
   spec.source_files = 'Bluejay/Bluejay/*.{h,swift}'
   spec.framework = 'SystemConfiguration'
   spec.platform = :ios, '9.3'

Bluejay/Bluejay/Bluejay.swift

@@ -129,10 +129,12 @@ public class Bluejay: NSObject {
      - Parameters:
         - observer: An object interested in observing Bluetooth connection events and state changes. You can register more observers using the `register` function.
         - restoreMode: Determines whether Bluejay will opt-in to state restoration, and if so, can optionally provide a listen restorer as well for restoring listens.
+        - coreBluetoothState: Allows starting Bluejay with an existing Core Bluetooth manager and peripheral.
     */
     public func start(
         connectionObserver observer: ConnectionObserver? = nil,
-        backgroundRestore restoreMode: BackgroundRestoreMode = .disable
+        backgroundRestore restoreMode: BackgroundRestoreMode = .disable,
+        coreBluetoothState: (manager: CBCentralManager, peripheral: CBPeripheral?)? = nil
         )
     {
         /**
@@ -173,11 +175,44 @@ public class Bluejay: NSObject {
             options[CBCentralManagerOptionRestoreIdentifierKey] = restoreIdentifier
         }
 
-        cbCentralManager = CBCentralManager(
-            delegate: self,
-            queue: .main,
-            options: options
-        )
+        if let cbState = coreBluetoothState {
+            cbCentralManager = cbState.manager
+
+            if let peripheral = cbState.peripheral {
+                connectedPeripheral = Peripheral(bluejay: self, cbPeripheral: peripheral)
+                peripheral.delegate = connectedPeripheral
+            }
+        } else {
+            cbCentralManager = CBCentralManager(
+                delegate: self,
+                queue: .main,
+                options: options
+            )
+        }
+    }
+
+    /**
+     Stops all operations and clears all states in Bluejay before returning a Core Bluetooth state that can then be used by another library or code outside of Bluejay.
+
+     - Returns: Returns a CBCentralManager and possibly a CBPeripheral as well if there was one connected at the time of this call.
+     - Warning: Will crash if Bluejay has not been instantiated properly or if Bluejay is still connecting.
+    */
+    public func stopAndExtractBluetoothState() -> (manager: CBCentralManager, peripheral: CBPeripheral?) {
+        precondition(cbCentralManager != nil)
+        precondition(!isConnecting)
+
+        defer {
+            connectedPeripheral?.cbPeripheral.delegate = nil
+            connectedPeripheral = nil
+
+            cbCentralManager.delegate = nil
+            cbCentralManager = nil
+        }
+
+        queue.cancelAll(BluejayError.stopped)
+        observers.removeAll()
+
+        return (manager: cbCentralManager, peripheral: connectedPeripheral?.cbPeripheral)
     }
 
     /// Check to see whether the "Uses Bluetooth LE accessories" capability is turned on in the residing Xcode project.

Bluejay/Bluejay/Error.swift

@@ -56,6 +56,8 @@ public enum BluejayError {
     case endListenCancelled
     /// Indefinite flush will not exit.
     case indefiniteFlush
+    /// Bluejay has stopped.
+    case stopped
 }
 
 extension BluejayError: LocalizedError {
@@ -107,6 +109,8 @@ extension BluejayError: LocalizedError {
             return "End listen cancelled."
         case .indefiniteFlush:
             return "Flush listen timeout cannot be none or zero."
+        case .stopped:
+            return "Bluejay stopped."
         }
     }
 }
@@ -142,6 +146,7 @@ extension BluejayError: CustomNSError {
         case .listenCacheDecoding: return 21
         case .endListenCancelled: return 22
         case .indefiniteFlush: return 23
+        case .stopped: return 24
         }
     }
 

Bluejay/Bluejay/Info.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.5.1</string>
+	<string>0.6.0</string>
 	<key>CFBundleVersion</key>
 	<string>$(CURRENT_PROJECT_VERSION)</string>
 	<key>NSPrincipalClass</key>