├── .gitignore
├── .travis.yml
├── Framework
    ├── Info.plist
    └── YYDispatchQueuePool.xcodeproj
    │   ├── project.pbxproj
    │   ├── project.xcworkspace
    │       └── contents.xcworkspacedata
    │   └── xcshareddata
    │       └── xcschemes
    │           └── YYDispatchQueuePool.xcscheme
├── LICENSE
├── README.md
├── Snapshots
    ├── CTRunDraw.png
    └── CTRunDrawLock.png
├── YYDispatchQueuePool.podspec
└── YYDispatchQueuePool
    ├── YYDispatchQueuePool.h
    └── YYDispatchQueuePool.m


/.gitignore:
--------------------------------------------------------------------------------
 1 | # OS X
 2 | .DS_Store
 3 | 
 4 | # Xcode
 5 | #
 6 | # gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore
 7 | 
 8 | ## Build generated
 9 | build/
10 | DerivedData/
11 | 
12 | ## Various settings
13 | *.pbxuser
14 | !default.pbxuser
15 | *.mode1v3
16 | !default.mode1v3
17 | *.mode2v3
18 | !default.mode2v3
19 | *.perspectivev3
20 | !default.perspectivev3
21 | xcuserdata/
22 | 
23 | ## Other
24 | *.moved-aside
25 | *.xccheckout
26 | *.xcuserstate
27 | *.xcscmblueprint
28 | 
29 | ## Obj-C/Swift specific
30 | *.hmap
31 | *.ipa
32 | *.dSYM.zip
33 | *.dSYM
34 | 
35 | # CocoaPods
36 | #
37 | # We recommend against adding the Pods directory to your .gitignore. However
38 | # you should judge for yourself, the pros and cons are mentioned at:
39 | # https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control
40 | #
41 | # Pods/
42 | 
43 | # Carthage
44 | #
45 | # Add this line if you want to avoid checking in source code from Carthage dependencies.
46 | # Carthage/Checkouts
47 | 
48 | Carthage/Build
49 | 
50 | # fastlane
51 | #
52 | # It is recommended to not store the screenshots in the git repo. Instead, use fastlane to re-generate the
53 | # screenshots whenever they are needed.
54 | # For more information about the recommended setup visit:
55 | # https://docs.fastlane.tools/best-practices/source-control/#source-control
56 | 
57 | fastlane/report.xml
58 | fastlane/Preview.html
59 | fastlane/screenshots
60 | fastlane/test_output
61 | 
62 | # Code Injection
63 | #
64 | # After new code Injection tools there's a generated folder /iOSInjectionProject
65 | # https://github.com/johnno1962/injectionforxcode
66 | 
67 | iOSInjectionProject/
68 | 


--------------------------------------------------------------------------------
/.travis.yml:
--------------------------------------------------------------------------------
 1 | language: objective-c
 2 | osx_image: xcode8
 3 | xcode_project: Framework/YYDispatchQueuePool.xcodeproj
 4 | xcode_scheme: YYDispatchQueuePool
 5 | 
 6 | before_install:
 7 | - env
 8 | - xcodebuild -version
 9 | - xcodebuild -showsdks
10 | - xcpretty --version
11 | 
12 | script:
13 | - set -o pipefail
14 | - xcodebuild clean build -project "$TRAVIS_XCODE_PROJECT"  -scheme "$TRAVIS_XCODE_SCHEME" | xcpretty
15 | 


--------------------------------------------------------------------------------
/Framework/Info.plist:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 3 | <plist version="1.0">
 4 | <dict>
 5 | 	<key>CFBundleDevelopmentRegion</key>
 6 | 	<string>$(DEVELOPMENT_LANGUAGE)</string>
 7 | 	<key>CFBundleExecutable</key>
 8 | 	<string>$(EXECUTABLE_NAME)</string>
 9 | 	<key>CFBundleIdentifier</key>
10 | 	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
11 | 	<key>CFBundleInfoDictionaryVersion</key>
12 | 	<string>6.0</string>
13 | 	<key>CFBundleName</key>
14 | 	<string>$(PRODUCT_NAME)</string>
15 | 	<key>CFBundlePackageType</key>
16 | 	<string>FMWK</string>
17 | 	<key>CFBundleShortVersionString</key>
18 | 	<string>1.0</string>
19 | 	<key>CFBundleVersion</key>
20 | 	<string>$(CURRENT_PROJECT_VERSION)</string>
21 | 	<key>NSPrincipalClass</key>
22 | 	<string></string>
23 | </dict>
24 | </plist>
25 | 


--------------------------------------------------------------------------------
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158 | 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
159 | 				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
160 | 				CLANG_WARN_EMPTY_BODY = YES;
161 | 				CLANG_WARN_ENUM_CONVERSION = YES;
162 | 				CLANG_WARN_INFINITE_RECURSION = YES;
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8 | 


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70 |             ReferencedContainer = "container:YYDispatchQueuePool.xcodeproj">
71 |          </BuildableReference>
72 |       </MacroExpansion>
73 |    </ProfileAction>
74 |    <AnalyzeAction
75 |       buildConfiguration = "Debug">
76 |    </AnalyzeAction>
77 |    <ArchiveAction
78 |       buildConfiguration = "Release"
79 |       revealArchiveInOrganizer = "YES">
80 |    </ArchiveAction>
81 | </Scheme>
82 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
 1 | The MIT License (MIT)
 2 | 
 3 | Copyright (c) 2015 ibireme <ibireme@gmail.com>
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 
23 | 


--------------------------------------------------------------------------------
/README.md:
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  1 | YYDispatchQueuePool
  2 | ==============
  3 | 
  4 | [![License MIT](https://img.shields.io/badge/license-MIT-green.svg?style=flat)](https://raw.githubusercontent.com/ibireme/YYDispatchQueuePool/master/LICENSE)&nbsp;
  5 | [![Carthage compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage)&nbsp;
  6 | [![CocoaPods](http://img.shields.io/cocoapods/v/YYDispatchQueuePool.svg?style=flat)](http://cocoapods.org/pods/YYDispatchQueuePool)&nbsp;
  7 | [![CocoaPods](http://img.shields.io/cocoapods/p/YYDispatchQueuePool.svg?style=flat)](http://cocoadocs.org/docsets/YYDispatchQueuePool)&nbsp;
  8 | [![Support](https://img.shields.io/badge/support-iOS%206%2B%20-blue.svg?style=flat)](https://www.apple.com/nl/ios/)&nbsp;
  9 | [![Build Status](https://travis-ci.org/ibireme/YYDispatchQueuePool.svg?branch=master)](https://travis-ci.org/ibireme/YYDispatchQueuePool)
 10 | 
 11 | iOS utility class to manage global dispatch queue.<br/>
 12 | (It's a component of [YYKit](https://github.com/ibireme/YYKit))
 13 | 
 14 | When use a concurrent queue to execute lots of blocks, I met this problem in some situation:
 15 | 
 16 | <img src="https://raw.github.com/ibireme/YYDispatchQueuePool/master/Snapshots/CTRunDraw.png" width="320">
 17 | <img src="https://raw.github.com/ibireme/YYDispatchQueuePool/master/Snapshots/CTRunDrawLock.png" width="320">
 18 | 
 19 | When some block is locked, the concurrent queue may create lots of thread and may block the main thread.
 20 | Use a global serial queue pool to avoid it.
 21 | 
 22 | Usage
 23 | ==============
 24 | ```objc
 25 | // Get a serial queue from global queue pool
 26 | dispatch_queue_t queue = YYDispatchQueueGetForQOS(NSQualityOfServiceUtility);
 27 | 
 28 | // Create a serial queue pool
 29 | YYDispatchQueuePool *pool = [[YYDispatchQueuePool alloc] initWithName:@"file.read" queueCount:5 qos:NSQualityOfServiceBackground];
 30 | dispatch_queue_t queue = [pool queue];
 31 | ```
 32 | 
 33 | Installation
 34 | ==============
 35 | 
 36 | ### CocoaPods
 37 | 
 38 | 1. Add `pod 'YYDispatchQueuePool'` to your Podfile.
 39 | 2. Run `pod install` or `pod update`.
 40 | 3. Import \<YYDispatchQueuePool/YYDispatchQueuePool.h\>.
 41 | 
 42 | 
 43 | ### Carthage
 44 | 
 45 | 1. Add `github "ibireme/YYDispatchQueuePool"` to your Cartfile.
 46 | 2. Run `carthage update --platform ios` and add the framework to your project.
 47 | 3. Import \<YYDispatchQueuePool/YYDispatchQueuePool.h\>.
 48 | 
 49 | 
 50 | ### Manually
 51 | 
 52 | 1. Download all the files in the YYDispatchQueuePool subdirectory.
 53 | 2. Add the source files to your Xcode project.
 54 | 3. Import `YYDispatchQueuePool.h`.
 55 | 
 56 | 
 57 | Documentation
 58 | ==============
 59 | Full API documentation is available on [CocoaDocs](http://cocoadocs.org/docsets/YYDispatchQueuePool/).<br/>
 60 | You can also install documentation locally using [appledoc](https://github.com/tomaz/appledoc).
 61 | 
 62 | 
 63 | Requirements
 64 | ==============
 65 | This library requires `iOS 6.0+` and `Xcode 8.0+`.
 66 | 
 67 | 
 68 | License
 69 | ==============
 70 | YYDispatchQueuePool is provided under the MIT license. See LICENSE file for details.
 71 | 
 72 | 
 73 | 
 74 | <br/><br/>
 75 | ---
 76 | 中文介绍
 77 | ==============
 78 | iOS 全局并发队列管理工具。<br/>
 79 | (该项目是 [YYKit](https://github.com/ibireme/YYKit) 组件之一)
 80 | 
 81 | 当用 concurrent queue 来执行大量 block 时，有时会遇到下面这种情况：
 82 | 
 83 | <img src="https://raw.github.com/ibireme/YYDispatchQueuePool/master/Snapshots/CTRunDraw.png" width="320">
 84 | <img src="https://raw.github.com/ibireme/YYDispatchQueuePool/master/Snapshots/CTRunDrawLock.png" width="320">
 85 | 
 86 | 当某个 block 所在线程被锁住时，concurrent queue 会创建大量线程以至于占用了过多资源而影响到主线程。这里可以用一个全局的 serial queue pool 来尽量控制全局线程数。
 87 | 
 88 | 用法
 89 | ==============
 90 | ```objc
 91 | // 从全局的 queue pool 中获取一个 queue
 92 | dispatch_queue_t queue = YYDispatchQueueGetForQOS(NSQualityOfServiceUtility);
 93 | 	
 94 | // 创建一个新的 serial queue pool
 95 | YYDispatchQueuePool *pool = [[YYDispatchQueuePool alloc] initWithName:@"file.read" queueCount:5 qos:NSQualityOfServiceBackground];
 96 | dispatch_queue_t queue = [pool queue];
 97 | ```
 98 | 	
 99 | 安装
100 | ==============
101 | 
102 | ### CocoaPods
103 | 
104 | 1. 在 Podfile 中添加 `pod 'YYDispatchQueuePool'`。
105 | 2. 执行 `pod install` 或 `pod update`。
106 | 3. 导入 \<YYDispatchQueuePool/YYDispatchQueuePool.h\>。
107 | 
108 | 
109 | ### Carthage
110 | 
111 | 1. 在 Cartfile 中添加 `github "ibireme/YYDispatchQueuePool"`。
112 | 2. 执行 `carthage update --platform ios` 并将生成的 framework 添加到你的工程。
113 | 3. 导入 \<YYDispatchQueuePool/YYDispatchQueuePool.h\>。
114 | 
115 | 
116 | ### 手动安装
117 | 
118 | 1. 下载 YYDispatchQueuePool 文件夹内的所有内容。
119 | 2. 将 YYDispatchQueuePool 内的源文件添加(拖放)到你的工程。
120 | 3. 导入 `YYDispatchQueuePool.h`。
121 | 
122 | 
123 | 文档
124 | ==============
125 | 你可以在 [CocoaDocs](http://cocoadocs.org/docsets/YYDispatchQueuePool/) 查看在线 API 文档，也可以用 [appledoc](https://github.com/tomaz/appledoc) 本地生成文档。
126 | 
127 | 
128 | 系统要求
129 | ==============
130 | 该项目最低支持 `iOS 6.0` 和 `Xcode 8.0`。
131 | 
132 | 
133 | 许可证
134 | ==============
135 | YYDispatchQueuePool 使用 MIT 许可证，详情见 LICENSE 文件。
136 | 
137 | 
138 | 相关文章
139 | ==============
140 | [iOS 保持界面流畅的技巧
141 | ](https://blog.ibireme.com/2015/11/12/smooth_user_interfaces_for_ios/) 
142 | 
143 | 


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/Snapshots/CTRunDrawLock.png:
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/YYDispatchQueuePool.podspec:
--------------------------------------------------------------------------------
 1 | Pod::Spec.new do |s|
 2 |   s.name         = 'YYDispatchQueuePool'
 3 |   s.summary      = 'iOS utility class to manage global dispatch queue.'
 4 |   s.version      = '1.0'
 5 |   s.license      = { :type => 'MIT', :file => 'LICENSE' }
 6 |   s.authors      = { 'ibireme' => 'ibireme@gmail.com' }
 7 |   s.social_media_url = 'http://blog.ibireme.com'
 8 |   s.homepage     = 'https://github.com/ibireme/YYDispatchQueuePool'
 9 |   s.platform     = :ios, '6.0'
10 |   s.ios.deployment_target = '6.0'
11 |   s.source       = { :git => 'https://github.com/ibireme/YYDispatchQueuePool.git', :tag => s.version.to_s }
12 |   
13 |   s.requires_arc = true
14 |   s.source_files = 'YYDispatchQueuePool/*.{h,m}'
15 |   s.public_header_files = 'YYDispatchQueuePool/*.{h}'
16 |   
17 |   s.frameworks = 'UIKit'
18 | 
19 | end
20 | 


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/YYDispatchQueuePool/YYDispatchQueuePool.h:
--------------------------------------------------------------------------------
 1 | //
 2 | //  YYDispatchQueueManager.h
 3 | //  YYKit <https://github.com/ibireme/YYKit>
 4 | //
 5 | //  Created by ibireme on 15/7/18.
 6 | //  Copyright (c) 2015 ibireme.
 7 | //
 8 | //  This source code is licensed under the MIT-style license found in the
 9 | //  LICENSE file in the root directory of this source tree.
10 | //
11 | 
12 | #import <Foundation/Foundation.h>
13 | 
14 | #if __has_include(<YYDispatchQueuePool/YYDispatchQueuePool.h>)
15 | FOUNDATION_EXPORT double YYDispatchQueuePoolVersionNumber;
16 | FOUNDATION_EXPORT const unsigned char YYDispatchQueuePoolVersionString[];
17 | #endif
18 | 
19 | #ifndef YYDispatchQueuePool_h
20 | #define YYDispatchQueuePool_h
21 | 
22 | NS_ASSUME_NONNULL_BEGIN
23 | 
24 | /**
25 |  A dispatch queue pool holds multiple serial queues.
26 |  Use this class to control queue's thread count (instead of concurrent queue).
27 |  */
28 | @interface YYDispatchQueuePool : NSObject
29 | - (instancetype)init UNAVAILABLE_ATTRIBUTE;
30 | + (instancetype)new UNAVAILABLE_ATTRIBUTE;
31 | 
32 | /**
33 |  Creates and returns a dispatch queue pool.
34 |  @param name       The name of the pool.
35 |  @param queueCount Maxmium queue count, should in range (1, 32).
36 |  @param qos        Queue quality of service (QOS).
37 |  @return A new pool, or nil if an error occurs.
38 |  */
39 | - (instancetype)initWithName:(nullable NSString *)name queueCount:(NSUInteger)queueCount qos:(NSQualityOfService)qos;
40 | 
41 | /// Pool's name.
42 | @property (nullable, nonatomic, readonly) NSString *name;
43 | 
44 | /// Get a serial queue from pool.
45 | - (dispatch_queue_t)queue;
46 | 
47 | + (instancetype)defaultPoolForQOS:(NSQualityOfService)qos;
48 | 
49 | @end
50 | 
51 | /// Get a serial queue from global queue pool with a specified qos.
52 | extern dispatch_queue_t YYDispatchQueueGetForQOS(NSQualityOfService qos);
53 | 
54 | NS_ASSUME_NONNULL_END
55 | 
56 | #endif


--------------------------------------------------------------------------------
/YYDispatchQueuePool/YYDispatchQueuePool.m:
--------------------------------------------------------------------------------
  1 | //
  2 | //  YYDispatchQueueManager.m
  3 | //  YYKit <https://github.com/ibireme/YYKit>
  4 | //
  5 | //  Created by ibireme on 15/7/18.
  6 | //  Copyright (c) 2015 ibireme.
  7 | //
  8 | //  This source code is licensed under the MIT-style license found in the
  9 | //  LICENSE file in the root directory of this source tree.
 10 | //
 11 | 
 12 | #import "YYDispatchQueuePool.h"
 13 | #import <UIKit/UIKit.h>
 14 | #import <libkern/OSAtomic.h>
 15 | 
 16 | #define MAX_QUEUE_COUNT 32
 17 | 
 18 | static inline dispatch_queue_priority_t NSQualityOfServiceToDispatchPriority(NSQualityOfService qos) {
 19 |     switch (qos) {
 20 |         case NSQualityOfServiceUserInteractive: return DISPATCH_QUEUE_PRIORITY_HIGH;
 21 |         case NSQualityOfServiceUserInitiated: return DISPATCH_QUEUE_PRIORITY_HIGH;
 22 |         case NSQualityOfServiceUtility: return DISPATCH_QUEUE_PRIORITY_LOW;
 23 |         case NSQualityOfServiceBackground: return DISPATCH_QUEUE_PRIORITY_BACKGROUND;
 24 |         case NSQualityOfServiceDefault: return DISPATCH_QUEUE_PRIORITY_DEFAULT;
 25 |         default: return DISPATCH_QUEUE_PRIORITY_DEFAULT;
 26 |     }
 27 | }
 28 | 
 29 | static inline qos_class_t NSQualityOfServiceToQOSClass(NSQualityOfService qos) {
 30 |     switch (qos) {
 31 |         case NSQualityOfServiceUserInteractive: return QOS_CLASS_USER_INTERACTIVE;
 32 |         case NSQualityOfServiceUserInitiated: return QOS_CLASS_USER_INITIATED;
 33 |         case NSQualityOfServiceUtility: return QOS_CLASS_UTILITY;
 34 |         case NSQualityOfServiceBackground: return QOS_CLASS_BACKGROUND;
 35 |         case NSQualityOfServiceDefault: return QOS_CLASS_DEFAULT;
 36 |         default: return QOS_CLASS_UNSPECIFIED;
 37 |     }
 38 | }
 39 | 
 40 | typedef struct {
 41 |     const char *name;
 42 |     void **queues;
 43 |     uint32_t queueCount;
 44 |     int32_t counter;
 45 | } YYDispatchContext;
 46 | 
 47 | static YYDispatchContext *YYDispatchContextCreate(const char *name,
 48 |                                                  uint32_t queueCount,
 49 |                                                  NSQualityOfService qos) {
 50 |     YYDispatchContext *context = calloc(1, sizeof(YYDispatchContext));
 51 |     if (!context) return NULL;
 52 |     context->queues =  calloc(queueCount, sizeof(void *));
 53 |     if (!context->queues) {
 54 |         free(context);
 55 |         return NULL;
 56 |     }
 57 |     if ([UIDevice currentDevice].systemVersion.floatValue >= 8.0) {
 58 |         dispatch_qos_class_t qosClass = NSQualityOfServiceToQOSClass(qos);
 59 |         for (NSUInteger i = 0; i < queueCount; i++) {
 60 |             dispatch_queue_attr_t attr = dispatch_queue_attr_make_with_qos_class(DISPATCH_QUEUE_SERIAL, qosClass, 0);
 61 |             dispatch_queue_t queue = dispatch_queue_create(name, attr);
 62 |             context->queues[i] = (__bridge_retained void *)(queue);
 63 |         }
 64 |     } else {
 65 |         long identifier = NSQualityOfServiceToDispatchPriority(qos);
 66 |         for (NSUInteger i = 0; i < queueCount; i++) {
 67 |             dispatch_queue_t queue = dispatch_queue_create(name, DISPATCH_QUEUE_SERIAL);
 68 |             dispatch_set_target_queue(queue, dispatch_get_global_queue(identifier, 0));
 69 |             context->queues[i] = (__bridge_retained void *)(queue);
 70 |         }
 71 |     }
 72 |     context->queueCount = queueCount;
 73 |     if (name) {
 74 |          context->name = strdup(name);
 75 |     }
 76 |     return context;
 77 | }
 78 | 
 79 | static void YYDispatchContextRelease(YYDispatchContext *context) {
 80 |     if (!context) return;
 81 |     if (context->queues) {
 82 |         for (NSUInteger i = 0; i < context->queueCount; i++) {
 83 |             void *queuePointer = context->queues[i];
 84 |             dispatch_queue_t queue = (__bridge_transfer dispatch_queue_t)(queuePointer);
 85 |             const char *name = dispatch_queue_get_label(queue);
 86 |             if (name) strlen(name);
 87 |             queue = nil;
 88 |         }
 89 |         free(context->queues);
 90 |         context->queues = NULL;
 91 |     }
 92 |     if (context->name) free((void *)context->name);
 93 |     free(context);
 94 | }
 95 | 
 96 | static dispatch_queue_t YYDispatchContextGetQueue(YYDispatchContext *context) {
 97 |     uint32_t counter = (uint32_t)OSAtomicIncrement32(&context->counter);
 98 |     void *queue = context->queues[counter % context->queueCount];
 99 |     return (__bridge dispatch_queue_t)(queue);
100 | }
101 | 
102 | 
103 | static YYDispatchContext *YYDispatchContextGetForQOS(NSQualityOfService qos) {
104 |     static YYDispatchContext *context[5] = {0};
105 |     switch (qos) {
106 |         case NSQualityOfServiceUserInteractive: {
107 |             static dispatch_once_t onceToken;
108 |             dispatch_once(&onceToken, ^{
109 |                 int count = (int)[NSProcessInfo processInfo].activeProcessorCount;
110 |                 count = count < 1 ? 1 : count > MAX_QUEUE_COUNT ? MAX_QUEUE_COUNT : count;
111 |                 context[0] = YYDispatchContextCreate("com.ibireme.yykit.user-interactive", count, qos);
112 |             });
113 |             return context[0];
114 |         } break;
115 |         case NSQualityOfServiceUserInitiated: {
116 |             static dispatch_once_t onceToken;
117 |             dispatch_once(&onceToken, ^{
118 |                 int count = (int)[NSProcessInfo processInfo].activeProcessorCount;
119 |                 count = count < 1 ? 1 : count > MAX_QUEUE_COUNT ? MAX_QUEUE_COUNT : count;
120 |                 context[1] = YYDispatchContextCreate("com.ibireme.yykit.user-initiated", count, qos);
121 |             });
122 |             return context[1];
123 |         } break;
124 |         case NSQualityOfServiceUtility: {
125 |             static dispatch_once_t onceToken;
126 |             dispatch_once(&onceToken, ^{
127 |                 int count = (int)[NSProcessInfo processInfo].activeProcessorCount;
128 |                 count = count < 1 ? 1 : count > MAX_QUEUE_COUNT ? MAX_QUEUE_COUNT : count;
129 |                 context[2] = YYDispatchContextCreate("com.ibireme.yykit.utility", count, qos);
130 |             });
131 |             return context[2];
132 |         } break;
133 |         case NSQualityOfServiceBackground: {
134 |             static dispatch_once_t onceToken;
135 |             dispatch_once(&onceToken, ^{
136 |                 int count = (int)[NSProcessInfo processInfo].activeProcessorCount;
137 |                 count = count < 1 ? 1 : count > MAX_QUEUE_COUNT ? MAX_QUEUE_COUNT : count;
138 |                 context[3] = YYDispatchContextCreate("com.ibireme.yykit.background", count, qos);
139 |             });
140 |             return context[3];
141 |         } break;
142 |         case NSQualityOfServiceDefault:
143 |         default: {
144 |             static dispatch_once_t onceToken;
145 |             dispatch_once(&onceToken, ^{
146 |                 int count = (int)[NSProcessInfo processInfo].activeProcessorCount;
147 |                 count = count < 1 ? 1 : count > MAX_QUEUE_COUNT ? MAX_QUEUE_COUNT : count;
148 |                 context[4] = YYDispatchContextCreate("com.ibireme.yykit.default", count, qos);
149 |             });
150 |             return context[4];
151 |         } break;
152 |     }
153 | }
154 | 
155 | 
156 | @implementation YYDispatchQueuePool {
157 |     @public
158 |     YYDispatchContext *_context;
159 | }
160 | 
161 | - (void)dealloc {
162 |     if (_context) {
163 |         YYDispatchContextRelease(_context);
164 |         _context = NULL;
165 |     }
166 | }
167 | 
168 | - (instancetype)initWithContext:(YYDispatchContext *)context {
169 |     self = [super init];
170 |     if (!context) return nil;
171 |     self->_context = context;
172 |     _name = context->name ? [NSString stringWithUTF8String:context->name] : nil;
173 |     return self;
174 | }
175 | 
176 | - (instancetype)initWithName:(NSString *)name queueCount:(NSUInteger)queueCount qos:(NSQualityOfService)qos {
177 |     if (queueCount == 0 || queueCount > MAX_QUEUE_COUNT) return nil;
178 |     self = [super init];
179 |     _context = YYDispatchContextCreate(name.UTF8String, (uint32_t)queueCount, qos);
180 |     if (!_context) return nil;
181 |     _name = name;
182 |     return self;
183 | }
184 | 
185 | - (dispatch_queue_t)queue {
186 |     return YYDispatchContextGetQueue(_context);
187 | }
188 | 
189 | + (instancetype)defaultPoolForQOS:(NSQualityOfService)qos {
190 |     switch (qos) {
191 |         case NSQualityOfServiceUserInteractive: {
192 |             static YYDispatchQueuePool *pool;
193 |             static dispatch_once_t onceToken;
194 |             dispatch_once(&onceToken, ^{
195 |                 pool = [[YYDispatchQueuePool alloc] initWithContext:YYDispatchContextGetForQOS(qos)];
196 |             });
197 |             return pool;
198 |         } break;
199 |         case NSQualityOfServiceUserInitiated: {
200 |             static YYDispatchQueuePool *pool;
201 |             static dispatch_once_t onceToken;
202 |             dispatch_once(&onceToken, ^{
203 |                 pool = [[YYDispatchQueuePool alloc] initWithContext:YYDispatchContextGetForQOS(qos)];
204 |             });
205 |             return pool;
206 |         } break;
207 |         case NSQualityOfServiceUtility: {
208 |             static YYDispatchQueuePool *pool;
209 |             static dispatch_once_t onceToken;
210 |             dispatch_once(&onceToken, ^{
211 |                 pool = [[YYDispatchQueuePool alloc] initWithContext:YYDispatchContextGetForQOS(qos)];
212 |             });
213 |             return pool;
214 |         } break;
215 |         case NSQualityOfServiceBackground: {
216 |             static YYDispatchQueuePool *pool;
217 |             static dispatch_once_t onceToken;
218 |             dispatch_once(&onceToken, ^{
219 |                 pool = [[YYDispatchQueuePool alloc] initWithContext:YYDispatchContextGetForQOS(qos)];
220 |             });
221 |             return pool;
222 |         } break;
223 |         case NSQualityOfServiceDefault:
224 |         default: {
225 |             static YYDispatchQueuePool *pool;
226 |             static dispatch_once_t onceToken;
227 |             dispatch_once(&onceToken, ^{
228 |                 pool = [[YYDispatchQueuePool alloc] initWithContext:YYDispatchContextGetForQOS(NSQualityOfServiceDefault)];
229 |             });
230 |             return pool;
231 |         } break;
232 |     }
233 | }
234 | 
235 | @end
236 | 
237 | dispatch_queue_t YYDispatchQueueGetForQOS(NSQualityOfService qos) {
238 |     return YYDispatchContextGetQueue(YYDispatchContextGetForQOS(qos));
239 | }
240 | 


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