├── GCD.xcodeproj
    ├── project.pbxproj
    ├── project.xcworkspace
    │   ├── contents.xcworkspacedata
    │   ├── xcshareddata
    │   │   └── IDEWorkspaceChecks.plist
    │   └── xcuserdata
    │   │   └── YouXianMing.xcuserdatad
    │   │       └── UserInterfaceState.xcuserstate
    └── xcuserdata
    │   ├── YouXianMing.xcuserdatad
    │       ├── xcdebugger
    │       │   └── Breakpoints_v2.xcbkptlist
    │       └── xcschemes
    │       │   ├── GCD.xcscheme
    │       │   └── xcschememanagement.plist
    │   └── YouXianMing1987@iCloud.com.xcuserdatad
    │       └── xcschemes
    │           └── GCD.xcscheme
├── GCD
    ├── AppDelegate.h
    ├── AppDelegate.m
    ├── Assets.xcassets
    │   └── AppIcon.appiconset
    │   │   └── Contents.json
    ├── Base.lproj
    │   ├── LaunchScreen.storyboard
    │   └── Main.storyboard
    ├── GCD
    │   ├── GCD.h
    │   ├── GCDGroup.h
    │   ├── GCDGroup.m
    │   ├── GCDQueue.h
    │   ├── GCDQueue.m
    │   ├── GCDSemaphore.h
    │   ├── GCDSemaphore.m
    │   ├── GCDTimer.h
    │   └── GCDTimer.m
    ├── Info.plist
    ├── ViewController.h
    ├── ViewController.m
    └── main.m
└── README.md


/GCD.xcodeproj/project.pbxproj:
--------------------------------------------------------------------------------
  1 | // !$*UTF8*$!
  2 | {
  3 | 	archiveVersion = 1;
  4 | 	classes = {
  5 | 	};
  6 | 	objectVersion = 46;
  7 | 	objects = {
  8 | 
  9 | /* Begin PBXBuildFile section */
 10 | 		10EC02D91BD4769900973DD9 /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 10EC02D81BD4769900973DD9 /* main.m */; };
 11 | 		10EC02DC1BD4769900973DD9 /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 10EC02DB1BD4769900973DD9 /* AppDelegate.m */; };
 12 | 		10EC02DF1BD4769900973DD9 /* ViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 10EC02DE1BD4769900973DD9 /* ViewController.m */; };
 13 | 		10EC02E21BD4769900973DD9 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 10EC02E01BD4769900973DD9 /* Main.storyboard */; };
 14 | 		10EC02E41BD4769900973DD9 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 10EC02E31BD4769900973DD9 /* Assets.xcassets */; };
 15 | 		10EC02E71BD4769900973DD9 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 10EC02E51BD4769900973DD9 /* LaunchScreen.storyboard */; };
 16 | 		10EC03141BD476CC00973DD9 /* GCDGroup.m in Sources */ = {isa = PBXBuildFile; fileRef = 10EC030D1BD476CC00973DD9 /* GCDGroup.m */; };
 17 | 		10EC03151BD476CC00973DD9 /* GCDQueue.m in Sources */ = {isa = PBXBuildFile; fileRef = 10EC030F1BD476CC00973DD9 /* GCDQueue.m */; };
 18 | 		10EC03161BD476CC00973DD9 /* GCDSemaphore.m in Sources */ = {isa = PBXBuildFile; fileRef = 10EC03111BD476CC00973DD9 /* GCDSemaphore.m */; };
 19 | 		10EC03171BD476CC00973DD9 /* GCDTimer.m in Sources */ = {isa = PBXBuildFile; fileRef = 10EC03131BD476CC00973DD9 /* GCDTimer.m */; };
 20 | /* End PBXBuildFile section */
 21 | 
 22 | /* Begin PBXFileReference section */
 23 | 		10EC02D41BD4769900973DD9 /* GCD.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = GCD.app; sourceTree = BUILT_PRODUCTS_DIR; };
 24 | 		10EC02D81BD4769900973DD9 /* main.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = main.m; sourceTree = "<group>"; };
 25 | 		10EC02DA1BD4769900973DD9 /* AppDelegate.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = AppDelegate.h; sourceTree = "<group>"; };
 26 | 		10EC02DB1BD4769900973DD9 /* AppDelegate.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = AppDelegate.m; sourceTree = "<group>"; };
 27 | 		10EC02DD1BD4769900973DD9 /* ViewController.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = ViewController.h; sourceTree = "<group>"; };
 28 | 		10EC02DE1BD4769900973DD9 /* ViewController.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = ViewController.m; sourceTree = "<group>"; };
 29 | 		10EC02E11BD4769900973DD9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
 30 | 		10EC02E31BD4769900973DD9 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 31 | 		10EC02E61BD4769900973DD9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
 32 | 		10EC02E81BD4769900973DD9 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 33 | 		10EC030B1BD476CC00973DD9 /* GCD.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = GCD.h; sourceTree = "<group>"; };
 34 | 		10EC030C1BD476CC00973DD9 /* GCDGroup.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = GCDGroup.h; sourceTree = "<group>"; };
 35 | 		10EC030D1BD476CC00973DD9 /* GCDGroup.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GCDGroup.m; sourceTree = "<group>"; };
 36 | 		10EC030E1BD476CC00973DD9 /* GCDQueue.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = GCDQueue.h; sourceTree = "<group>"; };
 37 | 		10EC030F1BD476CC00973DD9 /* GCDQueue.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GCDQueue.m; sourceTree = "<group>"; };
 38 | 		10EC03101BD476CC00973DD9 /* GCDSemaphore.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = GCDSemaphore.h; sourceTree = "<group>"; };
 39 | 		10EC03111BD476CC00973DD9 /* GCDSemaphore.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GCDSemaphore.m; sourceTree = "<group>"; };
 40 | 		10EC03121BD476CC00973DD9 /* GCDTimer.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = GCDTimer.h; sourceTree = "<group>"; };
 41 | 		10EC03131BD476CC00973DD9 /* GCDTimer.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GCDTimer.m; sourceTree = "<group>"; };
 42 | /* End PBXFileReference section */
 43 | 
 44 | /* Begin PBXFrameworksBuildPhase section */
 45 | 		10EC02D11BD4769900973DD9 /* Frameworks */ = {
 46 | 			isa = PBXFrameworksBuildPhase;
 47 | 			buildActionMask = 2147483647;
 48 | 			files = (
 49 | 			);
 50 | 			runOnlyForDeploymentPostprocessing = 0;
 51 | 		};
 52 | /* End PBXFrameworksBuildPhase section */
 53 | 
 54 | /* Begin PBXGroup section */
 55 | 		10EC02CB1BD4769900973DD9 = {
 56 | 			isa = PBXGroup;
 57 | 			children = (
 58 | 				10EC02D61BD4769900973DD9 /* GCD */,
 59 | 				10EC02D51BD4769900973DD9 /* Products */,
 60 | 			);
 61 | 			sourceTree = "<group>";
 62 | 		};
 63 | 		10EC02D51BD4769900973DD9 /* Products */ = {
 64 | 			isa = PBXGroup;
 65 | 			children = (
 66 | 				10EC02D41BD4769900973DD9 /* GCD.app */,
 67 | 			);
 68 | 			name = Products;
 69 | 			sourceTree = "<group>";
 70 | 		};
 71 | 		10EC02D61BD4769900973DD9 /* GCD */ = {
 72 | 			isa = PBXGroup;
 73 | 			children = (
 74 | 				10EC02DA1BD4769900973DD9 /* AppDelegate.h */,
 75 | 				10EC02DB1BD4769900973DD9 /* AppDelegate.m */,
 76 | 				10EC02DD1BD4769900973DD9 /* ViewController.h */,
 77 | 				10EC02DE1BD4769900973DD9 /* ViewController.m */,
 78 | 				10EC030A1BD476CC00973DD9 /* GCD */,
 79 | 				10EC02E01BD4769900973DD9 /* Main.storyboard */,
 80 | 				10EC02E31BD4769900973DD9 /* Assets.xcassets */,
 81 | 				10EC02E51BD4769900973DD9 /* LaunchScreen.storyboard */,
 82 | 				10EC02E81BD4769900973DD9 /* Info.plist */,
 83 | 				10EC02D71BD4769900973DD9 /* Supporting Files */,
 84 | 			);
 85 | 			path = GCD;
 86 | 			sourceTree = "<group>";
 87 | 		};
 88 | 		10EC02D71BD4769900973DD9 /* Supporting Files */ = {
 89 | 			isa = PBXGroup;
 90 | 			children = (
 91 | 				10EC02D81BD4769900973DD9 /* main.m */,
 92 | 			);
 93 | 			name = "Supporting Files";
 94 | 			sourceTree = "<group>";
 95 | 		};
 96 | 		10EC030A1BD476CC00973DD9 /* GCD */ = {
 97 | 			isa = PBXGroup;
 98 | 			children = (
 99 | 				10EC030B1BD476CC00973DD9 /* GCD.h */,
100 | 				10EC030E1BD476CC00973DD9 /* GCDQueue.h */,
101 | 				10EC030F1BD476CC00973DD9 /* GCDQueue.m */,
102 | 				10EC030C1BD476CC00973DD9 /* GCDGroup.h */,
103 | 				10EC030D1BD476CC00973DD9 /* GCDGroup.m */,
104 | 				10EC03101BD476CC00973DD9 /* GCDSemaphore.h */,
105 | 				10EC03111BD476CC00973DD9 /* GCDSemaphore.m */,
106 | 				10EC03121BD476CC00973DD9 /* GCDTimer.h */,
107 | 				10EC03131BD476CC00973DD9 /* GCDTimer.m */,
108 | 			);
109 | 			path = GCD;
110 | 			sourceTree = "<group>";
111 | 		};
112 | /* End PBXGroup section */
113 | 
114 | /* Begin PBXNativeTarget section */
115 | 		10EC02D31BD4769900973DD9 /* GCD */ = {
116 | 			isa = PBXNativeTarget;
117 | 			buildConfigurationList = 10EC03011BD4769900973DD9 /* Build configuration list for PBXNativeTarget "GCD" */;
118 | 			buildPhases = (
119 | 				10EC02D01BD4769900973DD9 /* Sources */,
120 | 				10EC02D11BD4769900973DD9 /* Frameworks */,
121 | 				10EC02D21BD4769900973DD9 /* Resources */,
122 | 			);
123 | 			buildRules = (
124 | 			);
125 | 			dependencies = (
126 | 			);
127 | 			name = GCD;
128 | 			productName = GCD;
129 | 			productReference = 10EC02D41BD4769900973DD9 /* GCD.app */;
130 | 			productType = "com.apple.product-type.application";
131 | 		};
132 | /* End PBXNativeTarget section */
133 | 
134 | /* Begin PBXProject section */
135 | 		10EC02CC1BD4769900973DD9 /* Project object */ = {
136 | 			isa = PBXProject;
137 | 			attributes = {
138 | 				LastUpgradeCheck = 0930;
139 | 				ORGANIZATIONNAME = ZiPeiYi;
140 | 				TargetAttributes = {
141 | 					10EC02D31BD4769900973DD9 = {
142 | 						CreatedOnToolsVersion = 7.0.1;
143 | 					};
144 | 				};
145 | 			};
146 | 			buildConfigurationList = 10EC02CF1BD4769900973DD9 /* Build configuration list for PBXProject "GCD" */;
147 | 			compatibilityVersion = "Xcode 3.2";
148 | 			developmentRegion = English;
149 | 			hasScannedForEncodings = 0;
150 | 			knownRegions = (
151 | 				en,
152 | 				Base,
153 | 			);
154 | 			mainGroup = 10EC02CB1BD4769900973DD9;
155 | 			productRefGroup = 10EC02D51BD4769900973DD9 /* Products */;
156 | 			projectDirPath = "";
157 | 			projectRoot = "";
158 | 			targets = (
159 | 				10EC02D31BD4769900973DD9 /* GCD */,
160 | 			);
161 | 		};
162 | /* End PBXProject section */
163 | 
164 | /* Begin PBXResourcesBuildPhase section */
165 | 		10EC02D21BD4769900973DD9 /* Resources */ = {
166 | 			isa = PBXResourcesBuildPhase;
167 | 			buildActionMask = 2147483647;
168 | 			files = (
169 | 				10EC02E71BD4769900973DD9 /* LaunchScreen.storyboard in Resources */,
170 | 				10EC02E41BD4769900973DD9 /* Assets.xcassets in Resources */,
171 | 				10EC02E21BD4769900973DD9 /* Main.storyboard in Resources */,
172 | 			);
173 | 			runOnlyForDeploymentPostprocessing = 0;
174 | 		};
175 | /* End PBXResourcesBuildPhase section */
176 | 
177 | /* Begin PBXSourcesBuildPhase section */
178 | 		10EC02D01BD4769900973DD9 /* Sources */ = {
179 | 			isa = PBXSourcesBuildPhase;
180 | 			buildActionMask = 2147483647;
181 | 			files = (
182 | 				10EC03141BD476CC00973DD9 /* GCDGroup.m in Sources */,
183 | 				10EC02DF1BD4769900973DD9 /* ViewController.m in Sources */,
184 | 				10EC02DC1BD4769900973DD9 /* AppDelegate.m in Sources */,
185 | 				10EC02D91BD4769900973DD9 /* main.m in Sources */,
186 | 				10EC03171BD476CC00973DD9 /* GCDTimer.m in Sources */,
187 | 				10EC03151BD476CC00973DD9 /* GCDQueue.m in Sources */,
188 | 				10EC03161BD476CC00973DD9 /* GCDSemaphore.m in Sources */,
189 | 			);
190 | 			runOnlyForDeploymentPostprocessing = 0;
191 | 		};
192 | /* End PBXSourcesBuildPhase section */
193 | 
194 | /* Begin PBXVariantGroup section */
195 | 		10EC02E01BD4769900973DD9 /* Main.storyboard */ = {
196 | 			isa = PBXVariantGroup;
197 | 			children = (
198 | 				10EC02E11BD4769900973DD9 /* Base */,
199 | 			);
200 | 			name = Main.storyboard;
201 | 			sourceTree = "<group>";
202 | 		};
203 | 		10EC02E51BD4769900973DD9 /* LaunchScreen.storyboard */ = {
204 | 			isa = PBXVariantGroup;
205 | 			children = (
206 | 				10EC02E61BD4769900973DD9 /* Base */,
207 | 			);
208 | 			name = LaunchScreen.storyboard;
209 | 			sourceTree = "<group>";
210 | 		};
211 | /* End PBXVariantGroup section */
212 | 
213 | /* Begin XCBuildConfiguration section */
214 | 		10EC02FF1BD4769900973DD9 /* Debug */ = {
215 | 			isa = XCBuildConfiguration;
216 | 			buildSettings = {
217 | 				ALWAYS_SEARCH_USER_PATHS = NO;
218 | 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
219 | 				CLANG_CXX_LIBRARY = "libc++";
220 | 				CLANG_ENABLE_MODULES = YES;
221 | 				CLANG_ENABLE_OBJC_ARC = YES;
222 | 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
223 | 				CLANG_WARN_BOOL_CONVERSION = YES;
224 | 				CLANG_WARN_COMMA = YES;
225 | 				CLANG_WARN_CONSTANT_CONVERSION = YES;
226 | 				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
227 | 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
228 | 				CLANG_WARN_EMPTY_BODY = YES;
229 | 				CLANG_WARN_ENUM_CONVERSION = YES;
230 | 				CLANG_WARN_INFINITE_RECURSION = YES;
231 | 				CLANG_WARN_INT_CONVERSION = YES;
232 | 				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
233 | 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
234 | 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
235 | 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
236 | 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
237 | 				CLANG_WARN_STRICT_PROTOTYPES = YES;
238 | 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
239 | 				CLANG_WARN_UNREACHABLE_CODE = YES;
240 | 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
241 | 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
242 | 				COPY_PHASE_STRIP = NO;
243 | 				DEBUG_INFORMATION_FORMAT = dwarf;
244 | 				ENABLE_STRICT_OBJC_MSGSEND = YES;
245 | 				ENABLE_TESTABILITY = YES;
246 | 				GCC_C_LANGUAGE_STANDARD = gnu99;
247 | 				GCC_DYNAMIC_NO_PIC = NO;
248 | 				GCC_NO_COMMON_BLOCKS = YES;
249 | 				GCC_OPTIMIZATION_LEVEL = 0;
250 | 				GCC_PREPROCESSOR_DEFINITIONS = (
251 | 					"DEBUG=1",
252 | 					"$(inherited)",
253 | 				);
254 | 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
255 | 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
256 | 				GCC_WARN_UNDECLARED_SELECTOR = YES;
257 | 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
258 | 				GCC_WARN_UNUSED_FUNCTION = YES;
259 | 				GCC_WARN_UNUSED_VARIABLE = YES;
260 | 				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
261 | 				MTL_ENABLE_DEBUG_INFO = YES;
262 | 				ONLY_ACTIVE_ARCH = YES;
263 | 				SDKROOT = iphoneos;
264 | 			};
265 | 			name = Debug;
266 | 		};
267 | 		10EC03001BD4769900973DD9 /* Release */ = {
268 | 			isa = XCBuildConfiguration;
269 | 			buildSettings = {
270 | 				ALWAYS_SEARCH_USER_PATHS = NO;
271 | 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
272 | 				CLANG_CXX_LIBRARY = "libc++";
273 | 				CLANG_ENABLE_MODULES = YES;
274 | 				CLANG_ENABLE_OBJC_ARC = YES;
275 | 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
276 | 				CLANG_WARN_BOOL_CONVERSION = YES;
277 | 				CLANG_WARN_COMMA = YES;
278 | 				CLANG_WARN_CONSTANT_CONVERSION = YES;
279 | 				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
280 | 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
281 | 				CLANG_WARN_EMPTY_BODY = YES;
282 | 				CLANG_WARN_ENUM_CONVERSION = YES;
283 | 				CLANG_WARN_INFINITE_RECURSION = YES;
284 | 				CLANG_WARN_INT_CONVERSION = YES;
285 | 				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
286 | 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
287 | 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
288 | 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
289 | 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
290 | 				CLANG_WARN_STRICT_PROTOTYPES = YES;
291 | 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
292 | 				CLANG_WARN_UNREACHABLE_CODE = YES;
293 | 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
294 | 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
295 | 				COPY_PHASE_STRIP = NO;
296 | 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
297 | 				ENABLE_NS_ASSERTIONS = NO;
298 | 				ENABLE_STRICT_OBJC_MSGSEND = YES;
299 | 				GCC_C_LANGUAGE_STANDARD = gnu99;
300 | 				GCC_NO_COMMON_BLOCKS = YES;
301 | 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
302 | 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
303 | 				GCC_WARN_UNDECLARED_SELECTOR = YES;
304 | 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
305 | 				GCC_WARN_UNUSED_FUNCTION = YES;
306 | 				GCC_WARN_UNUSED_VARIABLE = YES;
307 | 				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
308 | 				MTL_ENABLE_DEBUG_INFO = NO;
309 | 				SDKROOT = iphoneos;
310 | 				VALIDATE_PRODUCT = YES;
311 | 			};
312 | 			name = Release;
313 | 		};
314 | 		10EC03021BD4769900973DD9 /* Debug */ = {
315 | 			isa = XCBuildConfiguration;
316 | 			buildSettings = {
317 | 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
318 | 				INFOPLIST_FILE = GCD/Info.plist;
319 | 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
320 | 				PRODUCT_BUNDLE_IDENTIFIER = mc.TextCapital.GCD;
321 | 				PRODUCT_NAME = "$(TARGET_NAME)";
322 | 			};
323 | 			name = Debug;
324 | 		};
325 | 		10EC03031BD4769900973DD9 /* Release */ = {
326 | 			isa = XCBuildConfiguration;
327 | 			buildSettings = {
328 | 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
329 | 				INFOPLIST_FILE = GCD/Info.plist;
330 | 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
331 | 				PRODUCT_BUNDLE_IDENTIFIER = mc.TextCapital.GCD;
332 | 				PRODUCT_NAME = "$(TARGET_NAME)";
333 | 			};
334 | 			name = Release;
335 | 		};
336 | /* End XCBuildConfiguration section */
337 | 
338 | /* Begin XCConfigurationList section */
339 | 		10EC02CF1BD4769900973DD9 /* Build configuration list for PBXProject "GCD" */ = {
340 | 			isa = XCConfigurationList;
341 | 			buildConfigurations = (
342 | 				10EC02FF1BD4769900973DD9 /* Debug */,
343 | 				10EC03001BD4769900973DD9 /* Release */,
344 | 			);
345 | 			defaultConfigurationIsVisible = 0;
346 | 			defaultConfigurationName = Release;
347 | 		};
348 | 		10EC03011BD4769900973DD9 /* Build configuration list for PBXNativeTarget "GCD" */ = {
349 | 			isa = XCConfigurationList;
350 | 			buildConfigurations = (
351 | 				10EC03021BD4769900973DD9 /* Debug */,
352 | 				10EC03031BD4769900973DD9 /* Release */,
353 | 			);
354 | 			defaultConfigurationIsVisible = 0;
355 | 			defaultConfigurationName = Release;
356 | 		};
357 | /* End XCConfigurationList section */
358 | 	};
359 | 	rootObject = 10EC02CC1BD4769900973DD9 /* Project object */;
360 | }
361 | 


--------------------------------------------------------------------------------
/GCD.xcodeproj/project.xcworkspace/contents.xcworkspacedata:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <Workspace
3 |    version = "1.0">
4 |    <FileRef
5 |       location = "self:GCD.xcodeproj">
6 |    </FileRef>
7 | </Workspace>
8 | 


--------------------------------------------------------------------------------
/GCD.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.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>IDEDidComputeMac32BitWarning</key>
6 | 	<true/>
7 | </dict>
8 | </plist>
9 | 


--------------------------------------------------------------------------------
/GCD.xcodeproj/project.xcworkspace/xcuserdata/YouXianMing.xcuserdatad/UserInterfaceState.xcuserstate:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/YouXianMing/GCD-Program/a7dea7a7427341ed5b7ce5f3fa93e10eb18b32aa/GCD.xcodeproj/project.xcworkspace/xcuserdata/YouXianMing.xcuserdatad/UserInterfaceState.xcuserstate


--------------------------------------------------------------------------------
/GCD.xcodeproj/xcuserdata/YouXianMing.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <Bucket
3 |    type = "1"
4 |    version = "2.0">
5 | </Bucket>
6 | 


--------------------------------------------------------------------------------
/GCD.xcodeproj/xcuserdata/YouXianMing.xcuserdatad/xcschemes/GCD.xcscheme:
--------------------------------------------------------------------------------
  1 | <?xml version="1.0" encoding="UTF-8"?>
  2 | <Scheme
  3 |    LastUpgradeVersion = "0700"
  4 |    version = "1.3">
  5 |    <BuildAction
  6 |       parallelizeBuildables = "YES"
  7 |       buildImplicitDependencies = "YES">
  8 |       <BuildActionEntries>
  9 |          <BuildActionEntry
 10 |             buildForTesting = "YES"
 11 |             buildForRunning = "YES"
 12 |             buildForProfiling = "YES"
 13 |             buildForArchiving = "YES"
 14 |             buildForAnalyzing = "YES">
 15 |             <BuildableReference
 16 |                BuildableIdentifier = "primary"
 17 |                BlueprintIdentifier = "10EC02D31BD4769900973DD9"
 18 |                BuildableName = "GCD.app"
 19 |                BlueprintName = "GCD"
 20 |                ReferencedContainer = "container:GCD.xcodeproj">
 21 |             </BuildableReference>
 22 |          </BuildActionEntry>
 23 |       </BuildActionEntries>
 24 |    </BuildAction>
 25 |    <TestAction
 26 |       buildConfiguration = "Debug"
 27 |       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
 28 |       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
 29 |       shouldUseLaunchSchemeArgsEnv = "YES">
 30 |       <Testables>
 31 |          <TestableReference
 32 |             skipped = "NO">
 33 |             <BuildableReference
 34 |                BuildableIdentifier = "primary"
 35 |                BlueprintIdentifier = "10EC02EC1BD4769900973DD9"
 36 |                BuildableName = "GCDTests.xctest"
 37 |                BlueprintName = "GCDTests"
 38 |                ReferencedContainer = "container:GCD.xcodeproj">
 39 |             </BuildableReference>
 40 |          </TestableReference>
 41 |          <TestableReference
 42 |             skipped = "NO">
 43 |             <BuildableReference
 44 |                BuildableIdentifier = "primary"
 45 |                BlueprintIdentifier = "10EC02F71BD4769900973DD9"
 46 |                BuildableName = "GCDUITests.xctest"
 47 |                BlueprintName = "GCDUITests"
 48 |                ReferencedContainer = "container:GCD.xcodeproj">
 49 |             </BuildableReference>
 50 |          </TestableReference>
 51 |       </Testables>
 52 |       <MacroExpansion>
 53 |          <BuildableReference
 54 |             BuildableIdentifier = "primary"
 55 |             BlueprintIdentifier = "10EC02D31BD4769900973DD9"
 56 |             BuildableName = "GCD.app"
 57 |             BlueprintName = "GCD"
 58 |             ReferencedContainer = "container:GCD.xcodeproj">
 59 |          </BuildableReference>
 60 |       </MacroExpansion>
 61 |       <AdditionalOptions>
 62 |       </AdditionalOptions>
 63 |    </TestAction>
 64 |    <LaunchAction
 65 |       buildConfiguration = "Debug"
 66 |       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
 67 |       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
 68 |       launchStyle = "0"
 69 |       useCustomWorkingDirectory = "NO"
 70 |       ignoresPersistentStateOnLaunch = "NO"
 71 |       debugDocumentVersioning = "YES"
 72 |       debugServiceExtension = "internal"
 73 |       allowLocationSimulation = "YES">
 74 |       <BuildableProductRunnable
 75 |          runnableDebuggingMode = "0">
 76 |          <BuildableReference
 77 |             BuildableIdentifier = "primary"
 78 |             BlueprintIdentifier = "10EC02D31BD4769900973DD9"
 79 |             BuildableName = "GCD.app"
 80 |             BlueprintName = "GCD"
 81 |             ReferencedContainer = "container:GCD.xcodeproj">
 82 |          </BuildableReference>
 83 |       </BuildableProductRunnable>
 84 |       <AdditionalOptions>
 85 |       </AdditionalOptions>
 86 |    </LaunchAction>
 87 |    <ProfileAction
 88 |       buildConfiguration = "Release"
 89 |       shouldUseLaunchSchemeArgsEnv = "YES"
 90 |       savedToolIdentifier = ""
 91 |       useCustomWorkingDirectory = "NO"
 92 |       debugDocumentVersioning = "YES">
 93 |       <BuildableProductRunnable
 94 |          runnableDebuggingMode = "0">
 95 |          <BuildableReference
 96 |             BuildableIdentifier = "primary"
 97 |             BlueprintIdentifier = "10EC02D31BD4769900973DD9"
 98 |             BuildableName = "GCD.app"
 99 |             BlueprintName = "GCD"
100 |             ReferencedContainer = "container:GCD.xcodeproj">
101 |          </BuildableReference>
102 |       </BuildableProductRunnable>
103 |    </ProfileAction>
104 |    <AnalyzeAction
105 |       buildConfiguration = "Debug">
106 |    </AnalyzeAction>
107 |    <ArchiveAction
108 |       buildConfiguration = "Release"
109 |       revealArchiveInOrganizer = "YES">
110 |    </ArchiveAction>
111 | </Scheme>
112 | 


--------------------------------------------------------------------------------
/GCD.xcodeproj/xcuserdata/YouXianMing.xcuserdatad/xcschemes/xcschememanagement.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>SchemeUserState</key>
 6 | 	<dict>
 7 | 		<key>GCD.xcscheme</key>
 8 | 		<dict>
 9 | 			<key>orderHint</key>
10 | 			<integer>0</integer>
11 | 		</dict>
12 | 	</dict>
13 | 	<key>SuppressBuildableAutocreation</key>
14 | 	<dict>
15 | 		<key>10EC02D31BD4769900973DD9</key>
16 | 		<dict>
17 | 			<key>primary</key>
18 | 			<true/>
19 | 		</dict>
20 | 		<key>10EC02EC1BD4769900973DD9</key>
21 | 		<dict>
22 | 			<key>primary</key>
23 | 			<true/>
24 | 		</dict>
25 | 		<key>10EC02F71BD4769900973DD9</key>
26 | 		<dict>
27 | 			<key>primary</key>
28 | 			<true/>
29 | 		</dict>
30 | 	</dict>
31 | </dict>
32 | </plist>
33 | 


--------------------------------------------------------------------------------
/GCD.xcodeproj/xcuserdata/YouXianMing1987@iCloud.com.xcuserdatad/xcschemes/GCD.xcscheme:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <Scheme
 3 |    LastUpgradeVersion = "0930"
 4 |    version = "1.3">
 5 |    <BuildAction
 6 |       parallelizeBuildables = "YES"
 7 |       buildImplicitDependencies = "YES">
 8 |       <BuildActionEntries>
 9 |          <BuildActionEntry
10 |             buildForTesting = "YES"
11 |             buildForRunning = "YES"
12 |             buildForProfiling = "YES"
13 |             buildForArchiving = "YES"
14 |             buildForAnalyzing = "YES">
15 |             <BuildableReference
16 |                BuildableIdentifier = "primary"
17 |                BlueprintIdentifier = "10EC02D31BD4769900973DD9"
18 |                BuildableName = "GCD.app"
19 |                BlueprintName = "GCD"
20 |                ReferencedContainer = "container:GCD.xcodeproj">
21 |             </BuildableReference>
22 |          </BuildActionEntry>
23 |       </BuildActionEntries>
24 |    </BuildAction>
25 |    <TestAction
26 |       buildConfiguration = "Debug"
27 |       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
28 |       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
29 |       shouldUseLaunchSchemeArgsEnv = "YES">
30 |       <Testables>
31 |       </Testables>
32 |       <MacroExpansion>
33 |          <BuildableReference
34 |             BuildableIdentifier = "primary"
35 |             BlueprintIdentifier = "10EC02D31BD4769900973DD9"
36 |             BuildableName = "GCD.app"
37 |             BlueprintName = "GCD"
38 |             ReferencedContainer = "container:GCD.xcodeproj">
39 |          </BuildableReference>
40 |       </MacroExpansion>
41 |       <AdditionalOptions>
42 |       </AdditionalOptions>
43 |    </TestAction>
44 |    <LaunchAction
45 |       buildConfiguration = "Debug"
46 |       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
47 |       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
48 |       launchStyle = "0"
49 |       useCustomWorkingDirectory = "NO"
50 |       ignoresPersistentStateOnLaunch = "NO"
51 |       debugDocumentVersioning = "YES"
52 |       debugServiceExtension = "internal"
53 |       allowLocationSimulation = "YES">
54 |       <BuildableProductRunnable
55 |          runnableDebuggingMode = "0">
56 |          <BuildableReference
57 |             BuildableIdentifier = "primary"
58 |             BlueprintIdentifier = "10EC02D31BD4769900973DD9"
59 |             BuildableName = "GCD.app"
60 |             BlueprintName = "GCD"
61 |             ReferencedContainer = "container:GCD.xcodeproj">
62 |          </BuildableReference>
63 |       </BuildableProductRunnable>
64 |       <AdditionalOptions>
65 |       </AdditionalOptions>
66 |    </LaunchAction>
67 |    <ProfileAction
68 |       buildConfiguration = "Release"
69 |       shouldUseLaunchSchemeArgsEnv = "YES"
70 |       savedToolIdentifier = ""
71 |       useCustomWorkingDirectory = "NO"
72 |       debugDocumentVersioning = "YES">
73 |       <BuildableProductRunnable
74 |          runnableDebuggingMode = "0">
75 |          <BuildableReference
76 |             BuildableIdentifier = "primary"
77 |             BlueprintIdentifier = "10EC02D31BD4769900973DD9"
78 |             BuildableName = "GCD.app"
79 |             BlueprintName = "GCD"
80 |             ReferencedContainer = "container:GCD.xcodeproj">
81 |          </BuildableReference>
82 |       </BuildableProductRunnable>
83 |    </ProfileAction>
84 |    <AnalyzeAction
85 |       buildConfiguration = "Debug">
86 |    </AnalyzeAction>
87 |    <ArchiveAction
88 |       buildConfiguration = "Release"
89 |       revealArchiveInOrganizer = "YES">
90 |    </ArchiveAction>
91 | </Scheme>
92 | 


--------------------------------------------------------------------------------
/GCD/AppDelegate.h:
--------------------------------------------------------------------------------
 1 | //
 2 | //  AppDelegate.h
 3 | //  GCD
 4 | //
 5 | //  Created by YouXianMing on 15/10/19.
 6 | //  Copyright © 2015年 ZiPeiYi. All rights reserved.
 7 | //
 8 | 
 9 | #import <UIKit/UIKit.h>
10 | 
11 | @interface AppDelegate : UIResponder <UIApplicationDelegate>
12 | 
13 | @property (strong, nonatomic) UIWindow *window;
14 | 
15 | 
16 | @end
17 | 
18 | 


--------------------------------------------------------------------------------
/GCD/AppDelegate.m:
--------------------------------------------------------------------------------
 1 | //
 2 | //  AppDelegate.m
 3 | //  GCD
 4 | //
 5 | //  Created by YouXianMing on 15/10/19.
 6 | //  Copyright © 2015年 ZiPeiYi. All rights reserved.
 7 | //
 8 | 
 9 | #import "AppDelegate.h"
10 | 
11 | @interface AppDelegate ()
12 | 
13 | @end
14 | 
15 | @implementation AppDelegate
16 | 
17 | 
18 | - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
19 |     // Override point for customization after application launch.
20 |     return YES;
21 | }
22 | 
23 | - (void)applicationWillResignActive:(UIApplication *)application {
24 |     // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
25 |     // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
26 | }
27 | 
28 | - (void)applicationDidEnterBackground:(UIApplication *)application {
29 |     // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
30 |     // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
31 | }
32 | 
33 | - (void)applicationWillEnterForeground:(UIApplication *)application {
34 |     // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
35 | }
36 | 
37 | - (void)applicationDidBecomeActive:(UIApplication *)application {
38 |     // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
39 | }
40 | 
41 | - (void)applicationWillTerminate:(UIApplication *)application {
42 |     // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
43 | }
44 | 
45 | @end
46 | 


--------------------------------------------------------------------------------
/GCD/Assets.xcassets/AppIcon.appiconset/Contents.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "images" : [
 3 |     {
 4 |       "idiom" : "iphone",
 5 |       "size" : "29x29",
 6 |       "scale" : "2x"
 7 |     },
 8 |     {
 9 |       "idiom" : "iphone",
10 |       "size" : "29x29",
11 |       "scale" : "3x"
12 |     },
13 |     {
14 |       "idiom" : "iphone",
15 |       "size" : "40x40",
16 |       "scale" : "2x"
17 |     },
18 |     {
19 |       "idiom" : "iphone",
20 |       "size" : "40x40",
21 |       "scale" : "3x"
22 |     },
23 |     {
24 |       "idiom" : "iphone",
25 |       "size" : "60x60",
26 |       "scale" : "2x"
27 |     },
28 |     {
29 |       "idiom" : "iphone",
30 |       "size" : "60x60",
31 |       "scale" : "3x"
32 |     }
33 |   ],
34 |   "info" : {
35 |     "version" : 1,
36 |     "author" : "xcode"
37 |   }
38 | }


--------------------------------------------------------------------------------
/GCD/Base.lproj/LaunchScreen.storyboard:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="8150" systemVersion="15A204g" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" initialViewController="01J-lp-oVM">
 3 |     <dependencies>
 4 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="8122"/>
 5 |     </dependencies>
 6 |     <scenes>
 7 |         <!--View Controller-->
 8 |         <scene sceneID="EHf-IW-A2E">
 9 |             <objects>
10 |                 <viewController id="01J-lp-oVM" sceneMemberID="viewController">
11 |                     <layoutGuides>
12 |                         <viewControllerLayoutGuide type="top" id="Llm-lL-Icb"/>
13 |                         <viewControllerLayoutGuide type="bottom" id="xb3-aO-Qok"/>
14 |                     </layoutGuides>
15 |                     <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
16 |                         <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
17 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
18 |                         <animations/>
19 |                         <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
20 |                     </view>
21 |                 </viewController>
22 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
23 |             </objects>
24 |             <point key="canvasLocation" x="53" y="375"/>
25 |         </scene>
26 |     </scenes>
27 | </document>
28 | 


--------------------------------------------------------------------------------
/GCD/Base.lproj/Main.storyboard:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6211" systemVersion="14A298i" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
 3 |     <dependencies>
 4 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6204"/>
 5 |     </dependencies>
 6 |     <scenes>
 7 |         <!--View Controller-->
 8 |         <scene sceneID="tne-QT-ifu">
 9 |             <objects>
10 |                 <viewController id="BYZ-38-t0r" customClass="ViewController" customModuleProvider="" sceneMemberID="viewController">
11 |                     <layoutGuides>
12 |                         <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
13 |                         <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
14 |                     </layoutGuides>
15 |                     <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
16 |                         <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
17 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
18 |                         <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
19 |                     </view>
20 |                 </viewController>
21 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
22 |             </objects>
23 |         </scene>
24 |     </scenes>
25 | </document>
26 | 


--------------------------------------------------------------------------------
/GCD/GCD/GCD.h:
--------------------------------------------------------------------------------
 1 | //
 2 | //  GCD.h
 3 | //  GCD
 4 | //
 5 | //  http://home.cnblogs.com/u/YouXianMing/
 6 | //  https://github.com/YouXianMing
 7 | //
 8 | //  Created by XianMingYou on 15/3/15.
 9 | //  Copyright (c) 2015年 XianMingYou. All rights reserved.
10 | //
11 | 
12 | #import "GCDQueue.h"
13 | #import "GCDGroup.h"
14 | #import "GCDSemaphore.h"
15 | #import "GCDTimer.h"
16 | 
17 | 
18 | 


--------------------------------------------------------------------------------
/GCD/GCD/GCDGroup.h:
--------------------------------------------------------------------------------
 1 | //
 2 | //  GCDGroup.h
 3 | //  GCD
 4 | //
 5 | //  http://home.cnblogs.com/u/YouXianMing/
 6 | //  https://github.com/YouXianMing
 7 | //
 8 | //  Created by XianMingYou on 15/3/15.
 9 | //  Copyright (c) 2015年 XianMingYou. All rights reserved.
10 | //
11 | 
12 | #import <Foundation/Foundation.h>
13 | 
14 | @interface GCDGroup : NSObject
15 | 
16 | @property (strong, nonatomic, readonly) dispatch_group_t dispatchGroup;
17 | 
18 | #pragma 初始化
19 | - (instancetype)init;
20 | 
21 | #pragma mark - 用法
22 | - (void)enter;
23 | - (void)leave;
24 | - (void)wait;
25 | - (BOOL)wait:(int64_t)delta;
26 | 
27 | @end
28 | 


--------------------------------------------------------------------------------
/GCD/GCD/GCDGroup.m:
--------------------------------------------------------------------------------
 1 | //
 2 | //  GCDGroup.m
 3 | //  GCD
 4 | //
 5 | //  http://home.cnblogs.com/u/YouXianMing/
 6 | //  https://github.com/YouXianMing
 7 | //
 8 | //  Created by XianMingYou on 15/3/15.
 9 | //  Copyright (c) 2015年 XianMingYou. All rights reserved.
10 | //
11 | 
12 | #import "GCDGroup.h"
13 | 
14 | @interface GCDGroup ()
15 | 
16 | @property (strong, nonatomic, readwrite) dispatch_group_t dispatchGroup;
17 | 
18 | @end
19 | 
20 | @implementation GCDGroup
21 | 
22 | - (instancetype)init {
23 |     
24 |     self = [super init];
25 |     
26 |     if (self) {
27 |         
28 |         self.dispatchGroup = dispatch_group_create();
29 |     }
30 |     
31 |     return self;
32 | }
33 | 
34 | - (void)enter {
35 |     
36 |     dispatch_group_enter(self.dispatchGroup);
37 | }
38 | 
39 | - (void)leave {
40 |     
41 |     dispatch_group_leave(self.dispatchGroup);
42 | }
43 | 
44 | - (void)wait {
45 |     
46 |     dispatch_group_wait(self.dispatchGroup, DISPATCH_TIME_FOREVER);
47 | }
48 | 
49 | - (BOOL)wait:(int64_t)delta {
50 |     
51 |     return dispatch_group_wait(self.dispatchGroup, dispatch_time(DISPATCH_TIME_NOW, delta)) == 0;
52 | }
53 | 
54 | @end
55 | 


--------------------------------------------------------------------------------
/GCD/GCD/GCDQueue.h:
--------------------------------------------------------------------------------
 1 | //
 2 | //  GCDQueue.h
 3 | //  GCD
 4 | //
 5 | //  http://home.cnblogs.com/u/YouXianMing/
 6 | //  https://github.com/YouXianMing
 7 | //
 8 | //  Created by XianMingYou on 15/3/15.
 9 | //  Copyright (c) 2015年 XianMingYou. All rights reserved.
10 | //
11 | 
12 | #import <Foundation/Foundation.h>
13 | 
14 | @class GCDGroup;
15 | 
16 | @interface GCDQueue : NSObject
17 | 
18 | @property (strong, readonly, nonatomic) dispatch_queue_t dispatchQueue;
19 | 
20 | + (GCDQueue *)mainQueue;
21 | + (GCDQueue *)globalQueue;
22 | + (GCDQueue *)highPriorityGlobalQueue;
23 | + (GCDQueue *)lowPriorityGlobalQueue;
24 | + (GCDQueue *)backgroundPriorityGlobalQueue;
25 | 
26 | #pragma mark - 便利的构造方法
27 | + (void)executeInMainQueue:(dispatch_block_t)block;
28 | + (void)executeInGlobalQueue:(dispatch_block_t)block;
29 | + (void)executeInHighPriorityGlobalQueue:(dispatch_block_t)block;
30 | + (void)executeInLowPriorityGlobalQueue:(dispatch_block_t)block;
31 | + (void)executeInBackgroundPriorityGlobalQueue:(dispatch_block_t)block;
32 | + (void)executeInMainQueue:(dispatch_block_t)block afterDelaySecs:(NSTimeInterval)sec;
33 | + (void)executeInGlobalQueue:(dispatch_block_t)block afterDelaySecs:(NSTimeInterval)sec;
34 | + (void)executeInHighPriorityGlobalQueue:(dispatch_block_t)block afterDelaySecs:(NSTimeInterval)sec;
35 | + (void)executeInLowPriorityGlobalQueue:(dispatch_block_t)block afterDelaySecs:(NSTimeInterval)sec;
36 | + (void)executeInBackgroundPriorityGlobalQueue:(dispatch_block_t)block afterDelaySecs:(NSTimeInterval)sec;
37 | 
38 | #pragma 初始化
39 | - (instancetype)init;
40 | - (instancetype)initSerial;
41 | - (instancetype)initSerialWithLabel:(NSString *)label;
42 | - (instancetype)initConcurrent;
43 | - (instancetype)initConcurrentWithLabel:(NSString *)label;
44 | 
45 | #pragma mark - 用法
46 | - (void)execute:(dispatch_block_t)block;
47 | - (void)execute:(dispatch_block_t)block afterDelay:(int64_t)delta;
48 | - (void)execute:(dispatch_block_t)block afterDelaySecs:(float)delta;
49 | - (void)waitExecute:(dispatch_block_t)block;
50 | - (void)barrierExecute:(dispatch_block_t)block;
51 | - (void)waitBarrierExecute:(dispatch_block_t)block;
52 | - (void)suspend;
53 | - (void)resume;
54 | 
55 | #pragma mark - 与GCDGroup相关
56 | - (void)execute:(dispatch_block_t)block inGroup:(GCDGroup *)group;
57 | - (void)notify:(dispatch_block_t)block inGroup:(GCDGroup *)group;
58 | 
59 | @end
60 | 


--------------------------------------------------------------------------------
/GCD/GCD/GCDQueue.m:
--------------------------------------------------------------------------------
  1 | //
  2 | //  GCDQueue.m
  3 | //  GCD
  4 | //
  5 | //  http://home.cnblogs.com/u/YouXianMing/
  6 | //  https://github.com/YouXianMing
  7 | //
  8 | //  Created by XianMingYou on 15/3/15.
  9 | //  Copyright (c) 2015年 XianMingYou. All rights reserved.
 10 | //
 11 | 
 12 | #import "GCDQueue.h"
 13 | #import "GCDGroup.h"
 14 | 
 15 | static GCDQueue *mainQueue;
 16 | static GCDQueue *globalQueue;
 17 | static GCDQueue *highPriorityGlobalQueue;
 18 | static GCDQueue *lowPriorityGlobalQueue;
 19 | static GCDQueue *backgroundPriorityGlobalQueue;
 20 | 
 21 | @interface GCDQueue ()
 22 | 
 23 | @property (strong, readwrite, nonatomic) dispatch_queue_t dispatchQueue;
 24 | 
 25 | @end
 26 | 
 27 | @implementation GCDQueue
 28 | 
 29 | + (GCDQueue *)mainQueue {
 30 |     
 31 |     return mainQueue;
 32 | }
 33 | 
 34 | + (GCDQueue *)globalQueue {
 35 |     
 36 |     return globalQueue;
 37 | }
 38 | 
 39 | + (GCDQueue *)highPriorityGlobalQueue {
 40 |     
 41 |     return highPriorityGlobalQueue;
 42 | }
 43 | 
 44 | + (GCDQueue *)lowPriorityGlobalQueue {
 45 |     
 46 |     return lowPriorityGlobalQueue;
 47 | }
 48 | 
 49 | + (GCDQueue *)backgroundPriorityGlobalQueue {
 50 |     
 51 |     return backgroundPriorityGlobalQueue;
 52 | }
 53 | 
 54 | + (void)initialize {
 55 |     
 56 |     /**
 57 |      Initializes the class before it receives its first message.
 58 |      
 59 |      1. The runtime sends the initialize message to classes in a
 60 |      thread-safe manner.
 61 |      
 62 |      2. initialize is invoked only once per class. If you want to
 63 |      perform independent initialization for the class and for
 64 |      categories of the class, you should implement load methods.
 65 |      */
 66 |     if (self == [GCDQueue self])  {
 67 |         
 68 |         mainQueue                     = [GCDQueue new];
 69 |         globalQueue                   = [GCDQueue new];
 70 |         highPriorityGlobalQueue       = [GCDQueue new];
 71 |         lowPriorityGlobalQueue        = [GCDQueue new];
 72 |         backgroundPriorityGlobalQueue = [GCDQueue new];
 73 |         
 74 |         mainQueue.dispatchQueue                     = dispatch_get_main_queue();
 75 |         globalQueue.dispatchQueue                   = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
 76 |         highPriorityGlobalQueue.dispatchQueue       = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0);
 77 |         lowPriorityGlobalQueue.dispatchQueue        = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_LOW, 0);
 78 |         backgroundPriorityGlobalQueue.dispatchQueue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0);
 79 |     }
 80 | }
 81 | 
 82 | - (instancetype)init {
 83 |     
 84 |     return [self initSerial];
 85 | }
 86 | 
 87 | - (instancetype)initSerial {
 88 |     
 89 |     self = [super init];
 90 |     
 91 |     if (self) {
 92 |         
 93 |         self.dispatchQueue = dispatch_queue_create(nil, DISPATCH_QUEUE_SERIAL);
 94 |     }
 95 |     
 96 |     return self;
 97 | }
 98 | 
 99 | - (instancetype)initSerialWithLabel:(NSString *)label {
100 | 
101 |     self = [super init];
102 |     if (self)
103 |     {
104 |         self.dispatchQueue = dispatch_queue_create([label UTF8String], DISPATCH_QUEUE_SERIAL);
105 |     }
106 |     
107 |     return self;
108 | }
109 | 
110 | - (instancetype)initConcurrent {
111 |     
112 |     self = [super init];
113 |     
114 |     if (self) {
115 |         
116 |         self.dispatchQueue = dispatch_queue_create(nil, DISPATCH_QUEUE_CONCURRENT);
117 |     }
118 |     
119 |     return self;
120 | }
121 | 
122 | - (instancetype)initConcurrentWithLabel:(NSString *)label {
123 |     self = [super init];
124 |     if (self)
125 |     {
126 |         self.dispatchQueue = dispatch_queue_create([label UTF8String], DISPATCH_QUEUE_CONCURRENT);
127 |     }
128 |     return self;
129 | }
130 | 
131 | - (void)execute:(dispatch_block_t)block {
132 |     
133 |     NSParameterAssert(block);
134 |     dispatch_async(self.dispatchQueue, block);
135 | }
136 | 
137 | - (void)execute:(dispatch_block_t)block afterDelay:(int64_t)delta {
138 |     
139 |     NSParameterAssert(block);
140 |     dispatch_after(dispatch_time(DISPATCH_TIME_NOW, delta), self.dispatchQueue, block);
141 | }
142 | 
143 | - (void)execute:(dispatch_block_t)block afterDelaySecs:(float)delta {
144 |     
145 |     NSParameterAssert(block);
146 |     dispatch_after(dispatch_time(DISPATCH_TIME_NOW, delta * NSEC_PER_SEC), self.dispatchQueue, block);
147 | }
148 | 
149 | - (void)waitExecute:(dispatch_block_t)block {
150 |     
151 |     /*
152 |      As an optimization, this function invokes the block on
153 |      the current thread when possible.
154 |      
155 |      作为一个建议,这个方法尽量在当前线程池中调用.
156 |      */
157 |     
158 |     NSParameterAssert(block);
159 |     dispatch_sync(self.dispatchQueue, block);
160 | }
161 | 
162 | - (void)barrierExecute:(dispatch_block_t)block {
163 |     
164 |     /*
165 |      The queue you specify should be a concurrent queue that you
166 |      create yourself using the dispatch_queue_create function.
167 |      If the queue you pass to this function is a serial queue or
168 |      one of the global concurrent queues, this function behaves
169 |      like the dispatch_async function.
170 |      
171 |      使用的线程池应该是你自己创建的并发线程池.如果你传进来的参数为串行线程池
172 |      或者是系统的并发线程池中的某一个,这个方法就会被当做一个普通的async操作
173 |      */
174 |     
175 |     NSParameterAssert(block);
176 |     dispatch_barrier_async(self.dispatchQueue, block);
177 | }
178 | 
179 | - (void)waitBarrierExecute:(dispatch_block_t)block {
180 |     
181 |     /*
182 |      The queue you specify should be a concurrent queue that you
183 |      create yourself using the dispatch_queue_create function.
184 |      If the queue you pass to this function is a serial queue or
185 |      one of the global concurrent queues, this function behaves
186 |      like the dispatch_sync function.
187 |      
188 |      使用的线程池应该是你自己创建的并发线程池.如果你传进来的参数为串行线程池
189 |      或者是系统的并发线程池中的某一个,这个方法就会被当做一个普通的sync操作
190 |      
191 |      As an optimization, this function invokes the barrier block
192 |      on the current thread when possible.
193 |      
194 |      作为一个建议,这个方法尽量在当前线程池中调用.
195 |      */
196 |     
197 |     NSParameterAssert(block);
198 |     dispatch_barrier_sync(self.dispatchQueue, block);
199 | }
200 | 
201 | - (void)suspend {
202 |     
203 |     dispatch_suspend(self.dispatchQueue);
204 | }
205 | 
206 | - (void)resume {
207 |     
208 |     dispatch_resume(self.dispatchQueue);
209 | }
210 | 
211 | - (void)execute:(dispatch_block_t)block inGroup:(GCDGroup *)group {
212 |     
213 |     NSParameterAssert(block);
214 |     dispatch_group_async(group.dispatchGroup, self.dispatchQueue, block);
215 | }
216 | 
217 | - (void)notify:(dispatch_block_t)block inGroup:(GCDGroup *)group {
218 |     
219 |     NSParameterAssert(block);
220 |     dispatch_group_notify(group.dispatchGroup, self.dispatchQueue, block);
221 | }
222 | 
223 | 
224 | #pragma mark - 便利的构造方法
225 | + (void)executeInMainQueue:(dispatch_block_t)block afterDelaySecs:(NSTimeInterval)sec {
226 | 
227 |     NSParameterAssert(block);
228 |     dispatch_after(dispatch_time(DISPATCH_TIME_NOW, NSEC_PER_SEC * sec), mainQueue.dispatchQueue, block);
229 | }
230 | 
231 | + (void)executeInGlobalQueue:(dispatch_block_t)block afterDelaySecs:(NSTimeInterval)sec {
232 |     
233 |     NSParameterAssert(block);
234 |     dispatch_after(dispatch_time(DISPATCH_TIME_NOW, NSEC_PER_SEC * sec), globalQueue.dispatchQueue, block);
235 | }
236 | 
237 | + (void)executeInHighPriorityGlobalQueue:(dispatch_block_t)block afterDelaySecs:(NSTimeInterval)sec {
238 |     
239 |     NSParameterAssert(block);
240 |     dispatch_after(dispatch_time(DISPATCH_TIME_NOW, NSEC_PER_SEC * sec), highPriorityGlobalQueue.dispatchQueue, block);
241 | }
242 | 
243 | + (void)executeInLowPriorityGlobalQueue:(dispatch_block_t)block afterDelaySecs:(NSTimeInterval)sec {
244 |     
245 |     NSParameterAssert(block);
246 |     dispatch_after(dispatch_time(DISPATCH_TIME_NOW, NSEC_PER_SEC * sec), lowPriorityGlobalQueue.dispatchQueue, block);
247 | }
248 | 
249 | + (void)executeInBackgroundPriorityGlobalQueue:(dispatch_block_t)block afterDelaySecs:(NSTimeInterval)sec {
250 |     
251 |     NSParameterAssert(block);
252 |     dispatch_after(dispatch_time(DISPATCH_TIME_NOW, NSEC_PER_SEC * sec), backgroundPriorityGlobalQueue.dispatchQueue, block);
253 | }
254 | 
255 | + (void)executeInMainQueue:(dispatch_block_t)block {
256 |     
257 |     NSParameterAssert(block);
258 |     dispatch_async(mainQueue.dispatchQueue, block);
259 | }
260 | 
261 | + (void)executeInGlobalQueue:(dispatch_block_t)block {
262 |     
263 |     NSParameterAssert(block);
264 |     dispatch_async(globalQueue.dispatchQueue, block);
265 | }
266 | 
267 | + (void)executeInHighPriorityGlobalQueue:(dispatch_block_t)block {
268 |     
269 |     NSParameterAssert(block);
270 |     dispatch_async(highPriorityGlobalQueue.dispatchQueue, block);
271 | }
272 | 
273 | + (void)executeInLowPriorityGlobalQueue:(dispatch_block_t)block {
274 | 
275 |     NSParameterAssert(block);
276 |     dispatch_async(lowPriorityGlobalQueue.dispatchQueue, block);
277 | }
278 | 
279 | + (void)executeInBackgroundPriorityGlobalQueue:(dispatch_block_t)block {
280 | 
281 |     NSParameterAssert(block);
282 |     dispatch_async(backgroundPriorityGlobalQueue.dispatchQueue, block);
283 | }
284 | 
285 | @end
286 | 


--------------------------------------------------------------------------------
/GCD/GCD/GCDSemaphore.h:
--------------------------------------------------------------------------------
 1 | //
 2 | //  GCDSemaphore.h
 3 | //  GCD
 4 | //
 5 | //  http://home.cnblogs.com/u/YouXianMing/
 6 | //  https://github.com/YouXianMing
 7 | //
 8 | //  Created by XianMingYou on 15/3/15.
 9 | //  Copyright (c) 2015年 XianMingYou. All rights reserved.
10 | //
11 | 
12 | #import <Foundation/Foundation.h>
13 | 
14 | @interface GCDSemaphore : NSObject
15 | 
16 | @property (strong, readonly, nonatomic) dispatch_semaphore_t dispatchSemaphore;
17 | 
18 | #pragma 初始化
19 | - (instancetype)init;
20 | - (instancetype)initWithValue:(long)value;
21 | 
22 | #pragma mark - 用法
23 | - (BOOL)signal;
24 | - (void)wait;
25 | - (BOOL)wait:(int64_t)delta;
26 | 
27 | @end
28 | 


--------------------------------------------------------------------------------
/GCD/GCD/GCDSemaphore.m:
--------------------------------------------------------------------------------
 1 | //
 2 | //  GCDSemaphore.m
 3 | //  GCD
 4 | //
 5 | //  http://home.cnblogs.com/u/YouXianMing/
 6 | //  https://github.com/YouXianMing
 7 | //
 8 | //  Created by XianMingYou on 15/3/15.
 9 | //  Copyright (c) 2015年 XianMingYou. All rights reserved.
10 | //
11 | 
12 | #import "GCDSemaphore.h"
13 | 
14 | @interface GCDSemaphore ()
15 | 
16 | @property (strong, readwrite, nonatomic) dispatch_semaphore_t dispatchSemaphore;
17 | 
18 | @end
19 | 
20 | @implementation GCDSemaphore
21 | 
22 | - (instancetype)init {
23 |     
24 |     self = [super init];
25 |     
26 |     if (self) {
27 |         
28 |         self.dispatchSemaphore = dispatch_semaphore_create(0);
29 |     }
30 |     
31 |     return self;
32 | }
33 | 
34 | - (instancetype)initWithValue:(long)value {
35 |     
36 |     self = [super init];
37 |     
38 |     if (self) {
39 |         
40 |         self.dispatchSemaphore = dispatch_semaphore_create(value);
41 |     }
42 |     
43 |     return self;
44 | }
45 | 
46 | - (BOOL)signal {
47 |     
48 |     return dispatch_semaphore_signal(self.dispatchSemaphore) != 0;
49 | }
50 | 
51 | - (void)wait {
52 |     
53 |     dispatch_semaphore_wait(self.dispatchSemaphore, DISPATCH_TIME_FOREVER);
54 | }
55 | 
56 | - (BOOL)wait:(int64_t)delta {
57 |     
58 |     return dispatch_semaphore_wait(self.dispatchSemaphore, dispatch_time(DISPATCH_TIME_NOW, delta)) == 0;
59 | }
60 | 
61 | @end
62 | 


--------------------------------------------------------------------------------
/GCD/GCD/GCDTimer.h:
--------------------------------------------------------------------------------
 1 | //
 2 | //  GCDTimer.h
 3 | //  GCD
 4 | //
 5 | //  http://home.cnblogs.com/u/YouXianMing/
 6 | //  https://github.com/YouXianMing
 7 | //
 8 | //  Created by XianMingYou on 15/3/15.
 9 | //  Copyright (c) 2015年 XianMingYou. All rights reserved.
10 | //
11 | 
12 | #import <Foundation/Foundation.h>
13 | 
14 | @class GCDQueue;
15 | 
16 | @interface GCDTimer : NSObject
17 | 
18 | @property (strong, readonly, nonatomic) dispatch_source_t dispatchSource;
19 | 
20 | #pragma 初始化
21 | - (instancetype)init;
22 | - (instancetype)initInQueue:(GCDQueue *)queue;
23 | 
24 | #pragma mark - 用法
25 | - (void)event:(dispatch_block_t)block timeInterval:(uint64_t)interval;
26 | - (void)event:(dispatch_block_t)block cancelEvent:(dispatch_block_t)cancelEvent timeInterval:(uint64_t)interval;
27 | 
28 | - (void)event:(dispatch_block_t)block timeInterval:(uint64_t)interval delay:(uint64_t)delay;
29 | - (void)event:(dispatch_block_t)block cancelEvent:(dispatch_block_t)cancelEvent timeInterval:(uint64_t)interval delay:(uint64_t)delay;
30 | 
31 | - (void)event:(dispatch_block_t)block timeIntervalWithSecs:(float)secs;
32 | - (void)event:(dispatch_block_t)block cancelEvent:(dispatch_block_t)cancelEvent timeIntervalWithSecs:(float)secs;
33 | 
34 | - (void)event:(dispatch_block_t)block timeIntervalWithSecs:(float)secs delaySecs:(float)delaySecs;
35 | - (void)event:(dispatch_block_t)block cancelEvent:(dispatch_block_t)cancelEvent timeIntervalWithSecs:(float)secs delaySecs:(float)delaySecs;
36 | 
37 | - (void)start;
38 | - (void)destroy;
39 | 
40 | @end
41 | 


--------------------------------------------------------------------------------
/GCD/GCD/GCDTimer.m:
--------------------------------------------------------------------------------
  1 | //
  2 | //  GCDTimer.m
  3 | //  GCD
  4 | //
  5 | //  http://home.cnblogs.com/u/YouXianMing/
  6 | //  https://github.com/YouXianMing
  7 | //
  8 | //  Created by XianMingYou on 15/3/15.
  9 | //  Copyright (c) 2015年 XianMingYou. All rights reserved.
 10 | //
 11 | 
 12 | #import "GCDTimer.h"
 13 | #import "GCDQueue.h"
 14 | 
 15 | @interface GCDTimer ()
 16 | 
 17 | @property (strong, readwrite, nonatomic) dispatch_source_t dispatchSource;
 18 | 
 19 | @end
 20 | 
 21 | @implementation GCDTimer
 22 | 
 23 | - (instancetype)init {
 24 |     
 25 |     self = [super init];
 26 |     
 27 |     if (self) {
 28 |         
 29 |         self.dispatchSource = \
 30 |         dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0, dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0));
 31 |     }
 32 |     
 33 |     return self;
 34 | }
 35 | 
 36 | - (instancetype)initInQueue:(GCDQueue *)queue {
 37 |     
 38 |     self = [super init];
 39 |     
 40 |     if (self) {
 41 |         
 42 |         self.dispatchSource = \
 43 |         dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0, queue.dispatchQueue);
 44 |     }
 45 |     
 46 |     return self;
 47 | }
 48 | 
 49 | - (void)event:(dispatch_block_t)block timeInterval:(uint64_t)interval {
 50 |     
 51 |     NSParameterAssert(block);
 52 |     dispatch_source_set_timer(self.dispatchSource, dispatch_time(DISPATCH_TIME_NOW, 0), interval, 0);
 53 |     dispatch_source_set_event_handler(self.dispatchSource, block);
 54 | }
 55 | 
 56 | - (void)event:(dispatch_block_t)block cancelEvent:(dispatch_block_t)cancelEvent timeInterval:(uint64_t)interval {
 57 |     
 58 |     NSParameterAssert(block);
 59 |     dispatch_source_set_timer(self.dispatchSource, dispatch_time(DISPATCH_TIME_NOW, 0), interval, 0);
 60 |     dispatch_source_set_event_handler(self.dispatchSource, block);
 61 |     dispatch_source_set_cancel_handler(self.dispatchSource, cancelEvent);
 62 | }
 63 | 
 64 | - (void)event:(dispatch_block_t)block timeInterval:(uint64_t)interval delay:(uint64_t)delay {
 65 |     
 66 |     NSParameterAssert(block);
 67 |     dispatch_source_set_timer(self.dispatchSource, dispatch_time(DISPATCH_TIME_NOW, delay), interval, 0);
 68 |     dispatch_source_set_event_handler(self.dispatchSource, block);
 69 | }
 70 | 
 71 | - (void)event:(dispatch_block_t)block cancelEvent:(dispatch_block_t)cancelEvent timeInterval:(uint64_t)interval delay:(uint64_t)delay {
 72 |     
 73 |     NSParameterAssert(block);
 74 |     dispatch_source_set_timer(self.dispatchSource, dispatch_time(DISPATCH_TIME_NOW, delay), interval, 0);
 75 |     dispatch_source_set_event_handler(self.dispatchSource, block);
 76 |     dispatch_source_set_cancel_handler(self.dispatchSource, cancelEvent);
 77 | }
 78 | 
 79 | - (void)event:(dispatch_block_t)block timeIntervalWithSecs:(float)secs {
 80 |     
 81 |     NSParameterAssert(block);
 82 |     dispatch_source_set_timer(self.dispatchSource, dispatch_time(DISPATCH_TIME_NOW, 0), secs * NSEC_PER_SEC, 0);
 83 |     dispatch_source_set_event_handler(self.dispatchSource, block);
 84 | }
 85 | 
 86 | - (void)event:(dispatch_block_t)block cancelEvent:(dispatch_block_t)cancelEvent timeIntervalWithSecs:(float)secs {
 87 |     
 88 |     NSParameterAssert(block);
 89 |     dispatch_source_set_timer(self.dispatchSource, dispatch_time(DISPATCH_TIME_NOW, 0), secs * NSEC_PER_SEC, 0);
 90 |     dispatch_source_set_event_handler(self.dispatchSource, block);
 91 |     dispatch_source_set_cancel_handler(self.dispatchSource, cancelEvent);
 92 | }
 93 | 
 94 | - (void)event:(dispatch_block_t)block timeIntervalWithSecs:(float)secs delaySecs:(float)delaySecs {
 95 |     
 96 |     NSParameterAssert(block);
 97 |     dispatch_source_set_timer(self.dispatchSource, dispatch_time(DISPATCH_TIME_NOW, delaySecs * NSEC_PER_SEC), secs * NSEC_PER_SEC, 0);
 98 |     dispatch_source_set_event_handler(self.dispatchSource, block);
 99 | }
100 | 
101 | - (void)event:(dispatch_block_t)block cancelEvent:(dispatch_block_t)cancelEvent timeIntervalWithSecs:(float)secs delaySecs:(float)delaySecs {
102 |     
103 |     NSParameterAssert(block);
104 |     dispatch_source_set_timer(self.dispatchSource, dispatch_time(DISPATCH_TIME_NOW, delaySecs * NSEC_PER_SEC), secs * NSEC_PER_SEC, 0);
105 |     dispatch_source_set_event_handler(self.dispatchSource, block);
106 |     dispatch_source_set_cancel_handler(self.dispatchSource, cancelEvent);
107 | }
108 | 
109 | - (void)start {
110 |     
111 |     dispatch_resume(self.dispatchSource);
112 | }
113 | 
114 | - (void)destroy {
115 |     
116 |     dispatch_source_cancel(self.dispatchSource);
117 | }
118 | 
119 | @end
120 | 


--------------------------------------------------------------------------------
/GCD/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>en</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>APPL</string>
17 | 	<key>CFBundleShortVersionString</key>
18 | 	<string>1.0</string>
19 | 	<key>CFBundleSignature</key>
20 | 	<string>????</string>
21 | 	<key>CFBundleVersion</key>
22 | 	<string>1</string>
23 | 	<key>LSRequiresIPhoneOS</key>
24 | 	<true/>
25 | 	<key>UILaunchStoryboardName</key>
26 | 	<string>LaunchScreen</string>
27 | 	<key>UIMainStoryboardFile</key>
28 | 	<string>Main</string>
29 | 	<key>UIRequiredDeviceCapabilities</key>
30 | 	<array>
31 | 		<string>armv7</string>
32 | 	</array>
33 | 	<key>UISupportedInterfaceOrientations</key>
34 | 	<array>
35 | 		<string>UIInterfaceOrientationPortrait</string>
36 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
37 | 		<string>UIInterfaceOrientationLandscapeRight</string>
38 | 	</array>
39 | </dict>
40 | </plist>
41 | 


--------------------------------------------------------------------------------
/GCD/ViewController.h:
--------------------------------------------------------------------------------
 1 | //
 2 | //  ViewController.h
 3 | //  GCD
 4 | //
 5 | //  Created by YouXianMing on 15/10/19.
 6 | //  Copyright © 2015年 ZiPeiYi. All rights reserved.
 7 | //
 8 | 
 9 | #import <UIKit/UIKit.h>
10 | 
11 | @interface ViewController : UIViewController
12 | 
13 | 
14 | @end
15 | 
16 | 


--------------------------------------------------------------------------------
/GCD/ViewController.m:
--------------------------------------------------------------------------------
  1 | //
  2 | //  ViewController.m
  3 | //  GCD
  4 | //
  5 | //  Created by YouXianMing on 15/10/19.
  6 | //  Copyright © 2015年 ZiPeiYi. All rights reserved.
  7 | //
  8 | 
  9 | #import "ViewController.h"
 10 | #import "GCD.h"
 11 | 
 12 | @interface ViewController ()
 13 | 
 14 | @property (nonatomic, strong) GCDTimer *timer;
 15 | 
 16 | @end
 17 | 
 18 | @implementation ViewController
 19 | 
 20 | - (void)viewDidLoad {
 21 |     
 22 |     [super viewDidLoad];
 23 |     
 24 |     [GCDQueue executeInGlobalQueue:^{
 25 |         
 26 |         // download task, etc
 27 |         
 28 |         [GCDQueue executeInMainQueue:^{
 29 |             
 30 |             // update UI
 31 |         }];
 32 |     }];
 33 |     
 34 |     
 35 |     
 36 |     
 37 |     // init group
 38 |     GCDGroup *group = [GCDGroup new];
 39 |     
 40 |     // add to group
 41 |     [[GCDQueue globalQueue] execute:^{
 42 |         
 43 |         // task one
 44 |         
 45 |     } inGroup:group];
 46 |     
 47 |     // add to group
 48 |     [[GCDQueue globalQueue] execute:^{
 49 |         
 50 |         // task two
 51 |         
 52 |     } inGroup:group];
 53 |     
 54 |     // notify in mainQueue
 55 |     [[GCDQueue mainQueue] notify:^{
 56 |         
 57 |         // task three
 58 |         
 59 |     } inGroup:group];
 60 |     
 61 |     
 62 |     
 63 |     
 64 |     // init timer
 65 |     self.timer = [[GCDTimer alloc] initInQueue:[GCDQueue mainQueue]];
 66 |     
 67 |     // timer event
 68 |     [self.timer event:^{
 69 |         
 70 |         // task
 71 |         
 72 |     } timeInterval:NSEC_PER_SEC * 3 delay:NSEC_PER_SEC * 3];
 73 |     
 74 |     // start timer
 75 |     [self.timer start];
 76 |     
 77 |     
 78 |     
 79 |     
 80 |     // init semaphore
 81 |     GCDSemaphore *semaphore = [GCDSemaphore new];
 82 |     
 83 |     // wait
 84 |     [GCDQueue executeInGlobalQueue:^{
 85 |         
 86 |         [semaphore wait];
 87 |         
 88 |         // todo sth else
 89 |     }];
 90 |     
 91 |     // signal
 92 |     [GCDQueue executeInGlobalQueue:^{
 93 |         
 94 |         // do sth
 95 |         [semaphore signal];
 96 |     }];
 97 | }
 98 | 
 99 | @end
100 | 


--------------------------------------------------------------------------------
/GCD/main.m:
--------------------------------------------------------------------------------
 1 | //
 2 | //  main.m
 3 | //  GCD
 4 | //
 5 | //  Created by YouXianMing on 15/10/19.
 6 | //  Copyright © 2015年 ZiPeiYi. All rights reserved.
 7 | //
 8 | 
 9 | #import <UIKit/UIKit.h>
10 | #import "AppDelegate.h"
11 | 
12 | int main(int argc, char * argv[]) {
13 |     @autoreleasepool {
14 |         return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
15 |     }
16 | }
17 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # GCD-Program
 2 | 
 3 | > 需要swift版本GCD的请移步-[swift版本GCD](https://github.com/YouXianMing/Swift-GCD)
 4 | 
 5 | ```
 6 | //
 7 | //  ViewController.m
 8 | //  GCD
 9 | //
10 | //  Created by YouXianMing on 15/10/19.
11 | //  Copyright © 2015年 ZiPeiYi. All rights reserved.
12 | //
13 | 
14 | #import "ViewController.h"
15 | #import "GCD.h"
16 | 
17 | @interface ViewController ()
18 | 
19 | @property (nonatomic, strong) GCDTimer *timer;
20 | 
21 | @end
22 | 
23 | @implementation ViewController
24 | 
25 | - (void)viewDidLoad {
26 |     
27 |     [super viewDidLoad];
28 |     
29 |     [GCDQueue executeInGlobalQueue:^{
30 |         
31 |         // download task, etc
32 |         
33 |         [GCDQueue executeInMainQueue:^{
34 |             
35 |             // update UI
36 |         }];
37 |     }];
38 |     
39 |     
40 |     
41 |     
42 |     // init group
43 |     GCDGroup *group = [GCDGroup new];
44 |     
45 |     // add to group
46 |     [[GCDQueue globalQueue] execute:^{
47 |         // task one
48 |     } inGroup:group];
49 |     
50 |     // add to group
51 |     [[GCDQueue globalQueue] execute:^{
52 |         // task two
53 |     } inGroup:group];
54 |     
55 |     // notify in mainQueue
56 |     [[GCDQueue mainQueue] notify:^{
57 |         // task three
58 |     } inGroup:group];
59 |     
60 |     
61 |     
62 |     
63 |     // init timer
64 |     self.timer = [[GCDTimer alloc] initInQueue:[GCDQueue mainQueue]];
65 |     
66 |     // timer event
67 |     [self.timer event:^{
68 |         // task
69 |     } timeInterval:NSEC_PER_SEC * 3];
70 |     
71 |     // start timer
72 |     [self.timer start];
73 |     
74 |     
75 |     
76 |     
77 |     // init semaphore
78 |     GCDSemaphore *semaphore = [GCDSemaphore new];
79 |     
80 |     // wait
81 |     [GCDQueue executeInGlobalQueue:^{
82 |         
83 |         [semaphore wait];
84 |         // todo sth else
85 |     }];
86 |     
87 |     // signal
88 |     [GCDQueue executeInGlobalQueue:^{
89 |         
90 |         // do sth
91 |         [semaphore signal];
92 |     }];
93 | }
94 | 
95 | @end
96 | ```
97 | 
98 | 


--------------------------------------------------------------------------------