keychain/ckks/NSOperationCategories.h

   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 NS_ASSUME_NONNULL_BEGIN
  25
  26 @interface NSOperation (CKKSUsefulPrintingOperation)
  27 - (NSString*)description;
  28 - (BOOL)isPending;
  29
  30 // Use our .name field if it's there, otherwise, just a generic name
  31 - (NSString*)selfname;
  32
  33 // If op is nonnull, op becomes a dependency of this operation
  34 - (void)addNullableDependency:(NSOperation* _Nullable)op;
  35
  36 // Add all operations in this collection as dependencies, then add yourself to the collection
  37 - (void)linearDependencies:(NSHashTable*)collection;
  38
  39 // Insert yourself as high up the linearized list of dependencies as possible
  40 - (void)linearDependenciesWithSelfFirst:(NSHashTable*)collection;
  41
  42 // Set completionBlock to remove all dependencies - break strong references.
  43 - (void)removeDependenciesUponCompletion;
  44
  45 // Return a stringified representation of this operation's live dependencies.
  46 - (NSString*)pendingDependenciesString:(NSString*)prefix;
  47 @end
  48
  49 @interface NSBlockOperation (CKKSUsefulConstructorOperation)
  50 + (instancetype)named:(NSString*)name withBlock:(void (^)(void))block;
  51 @end
  52
  53 NS_ASSUME_NONNULL_END