1  /*
 2   * Copyright (c) 2017 Apple Inc. All Rights Reserved.
 3   *
 4   * @APPLE_LICENSE_HEADER_START@
 5   *
 6   * This file contains Original Code and/or Modifications of Original Code
 7   * as defined in and that are subject to the Apple Public Source License
 8   * Version 2.0 (the 'License'). You may not use this file except in
 9   * compliance with the License. Please obtain a copy of the License at
10   * http://www.opensource.apple.com/apsl/ and read it before using this
11   * file.
12   *
13   * The Original Code and all software distributed under the License are
14   * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15   * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16   * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17   * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18   * Please see the License for the specific language governing rights and
19   * limitations under the License.
20   *
21   * @APPLE_LICENSE_HEADER_END@
22   */
23  
24  #if __OBJC2__
25  #ifndef SFAnalyticsActivityTracker_h
26  #define SFAnalyticsActivityTracker_h
27  
28  #import <Foundation/Foundation.h>
29  
30  NS_ASSUME_NONNULL_BEGIN
31  
32  @interface SFAnalyticsActivityTracker : NSObject
33  
34  @property (readonly, nullable) NSNumber * measurement;
35  
36  - (instancetype)init NS_UNAVAILABLE;
37  - (void)performAction:(void (^)(void))action;
38  - (void)cancel;
39  
40  - (void)start;
41  - (void)stop;
42  
43  - (void)stopWithEvent:(NSString*)eventName
44                 result:(NSError* _Nullable)eventResultError;
45  
46  @end
47  
48  NS_ASSUME_NONNULL_END
49  
50  #endif
51  #endif