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bestswifterbestswifter
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Merge pull request bestswifter#4 from upworldcjw/master
监听对象释放。优化log输出
2 parents 03128c8 + 70dc62d commit 4adb348

4 files changed

Lines changed: 86 additions & 4 deletions

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‎RunloopAndThread/RunloopAndThread.xcodeproj/project.pbxproj‎

Lines changed: 10 additions & 1 deletion
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@@ -13,6 +13,7 @@
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9BAA82B11D451A0E00E5B98A /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 9BAA82AF1D451A0E00E5B98A /* Main.storyboard */; };
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9BAA82B31D451A0E00E5B98A /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 9BAA82B21D451A0E00E5B98A /* Assets.xcassets */; };
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9BAA82B61D451A0E00E5B98A /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 9BAA82B41D451A0E00E5B98A /* LaunchScreen.storyboard */; };
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E59118CB1D9B84FE00F25FF6 /* NSObject+DeallocBlock.m in Sources */ = {isa = PBXBuildFile; fileRef = E59118CA1D9B84FE00F25FF6 /* NSObject+DeallocBlock.m */; };
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/* End PBXBuildFile section */
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/* Begin PBXFileReference section */
@@ -26,6 +27,8 @@
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9BAA82B21D451A0E00E5B98A /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
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9BAA82B51D451A0E00E5B98A /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
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9BAA82B71D451A0E00E5B98A /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
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E59118C91D9B84FE00F25FF6 /* NSObject+DeallocBlock.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = "NSObject+DeallocBlock.h"; sourceTree = "<group>"; };
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E59118CA1D9B84FE00F25FF6 /* NSObject+DeallocBlock.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = "NSObject+DeallocBlock.m"; sourceTree = "<group>"; };
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/* End PBXFileReference section */
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/* Begin PBXFrameworksBuildPhase section */
@@ -58,6 +61,8 @@
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9BAA82A51D451A0E00E5B98A /* RunloopAndThread */ = {
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isa = PBXGroup;
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children = (
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E59118C91D9B84FE00F25FF6 /* NSObject+DeallocBlock.h */,
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E59118CA1D9B84FE00F25FF6 /* NSObject+DeallocBlock.m */,
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9BAA82A91D451A0E00E5B98A /* AppDelegate.h */,
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9BAA82AA1D451A0E00E5B98A /* AppDelegate.m */,
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9BAA82AC1D451A0E00E5B98A /* ViewController.h */,
@@ -110,7 +115,7 @@
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TargetAttributes = {
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9BAA82A21D451A0E00E5B98A = {
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CreatedOnToolsVersion = 7.3.1;
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DevelopmentTeam = U2HX3RFD94;
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DevelopmentTeam = RN42P92PY7;
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};
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};
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};
@@ -150,6 +155,7 @@
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isa = PBXSourcesBuildPhase;
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buildActionMask = 2147483647;
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files = (
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E59118CB1D9B84FE00F25FF6 /* NSObject+DeallocBlock.m in Sources */,
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9BAA82AE1D451A0E00E5B98A /* ViewController.m in Sources */,
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9BAA82AB1D451A0E00E5B98A /* AppDelegate.m in Sources */,
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9BAA82A81D451A0E00E5B98A /* main.m in Sources */,
@@ -264,6 +270,7 @@
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isa = XCBuildConfiguration;
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buildSettings = {
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ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
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DEVELOPMENT_TEAM = RN42P92PY7;
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INFOPLIST_FILE = RunloopAndThread/Info.plist;
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LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
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PRODUCT_BUNDLE_IDENTIFIER = baidu.RunloopAndThread;
@@ -275,6 +282,7 @@
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isa = XCBuildConfiguration;
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buildSettings = {
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ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
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DEVELOPMENT_TEAM = RN42P92PY7;
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INFOPLIST_FILE = RunloopAndThread/Info.plist;
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LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
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PRODUCT_BUNDLE_IDENTIFIER = baidu.RunloopAndThread;
@@ -301,6 +309,7 @@
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9BAA82BC1D451A0E00E5B98A /* Release */,
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);
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defaultConfigurationIsVisible = 0;
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defaultConfigurationName = Release;
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};
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/* End XCConfigurationList section */
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};

‎RunloopAndThread/RunloopAndThread/NSObject+DeallocBlock.h‎

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//
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// NSObject+DeallocBlock.h
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// pengpeng
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//
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// Created by jianwei.chen on 15/9/6.
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// Copyright (c) 2015年 AsiaInnovations. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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@interface NSObject (DeallocBlock)
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-(void)runAtDealloc:(dispatch_block_t)block;
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@end

‎RunloopAndThread/RunloopAndThread/NSObject+DeallocBlock.m‎

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//
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// NSObject+DeallocBlock.m
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// pengpeng
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//
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// Created by jianwei.chen on 15/9/6.
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// Copyright (c) 2015年 AsiaInnovations. All rights reserved.
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//
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#import "NSObject+DeallocBlock.h"
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#import <objc/message.h>
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@interface NBDeallocBlockExecutor : NSObject{
13+
dispatch_block_t _block;
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}
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- (id)initWithBlock:(dispatch_block_t)block;
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@end
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@implementation NBDeallocBlockExecutor
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- (id)initWithBlock:(dispatch_block_t)aBlock
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{
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self = [super init];
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if (self) {
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_block = [aBlock copy];
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}
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return self;
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}
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- (void)dealloc
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{
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_block ? _block() : nil;
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}
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@end
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static char *dealloc_key;
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@implementation NSObject (DeallocBlock)
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-(void)runAtDealloc:(dispatch_block_t)block
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{
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if(block){
40+
NBDeallocBlockExecutor *executor = [[NBDeallocBlockExecutor alloc] initWithBlock:block];
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objc_setAssociatedObject(self, &dealloc_key, executor, OBJC_ASSOCIATION_RETAIN);//不要强应用
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}
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}
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@end

‎RunloopAndThread/RunloopAndThread/ViewController.m‎

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Original file line numberDiff line numberDiff line change
@@ -7,6 +7,7 @@
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//
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#import "ViewController.h"
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#import "NSObject+DeallocBlock.h"
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@interface ViewController ()
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@@ -18,23 +19,35 @@ @interface ViewController ()
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@implementation ViewController
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- (void)viewDidLoad {
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[super viewDidLoad];
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// [self memoryTest];
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[self memoryTest];
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NSLog(@"test");
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// [self runloopTest];
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}
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2730
#pragma --mark 内存占用测试
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- (void)memoryTest {
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for (int i = 0; i < 100000; ++i) {
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//总结：test At: xcode8,ios 9.3.4
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//1,当用CFRunLoopRun(),然后调用CFRunLoopStop，此方法是后果会输出current thread，thread dealloc，current thread，thread dealloc ...所以不会用内存问题
35+
//2,当用 [runLoop run];,然后调用CFRunLoopStop,此方法会current thread，current thread，... 最后输出[NSThread start]: Thread creation failed with error 35.然后app卡住，然后app crash. 内存不会暴增。但是线程无法销毁
36+
//3,当用 [runLoop runMode:NSRunLoopCommonModes beforeDate:[NSDate distantFuture]];,然后调用CFRunLoopStop,此方法会。[ViewController performSelector:onThread:withObject:waitUntilDone:modes:]: target thread exited while waiting for the perform' crash。是因为 [runLoop runMode:NSRunLoopCommonModes beforeDate:[NSDate distantFuture]]; 无法阻塞线程，所以线程很快执行完run 方法。然后线程exit，导致奔溃（在一个退出的线程，当然这个时候线程没有释放，执行方法奔溃）
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3038
NSThread *thread = [[NSThread alloc] initWithTarget:self selector:@selector(run) object:nil];
39+
[thread runAtDealloc:^{
40+
NSLog(@"thread dealloc");
41+
}];
3142
[thread start];
3243
[self performSelector:@selector(stopThread) onThread:thread withObject:nil waitUntilDone:YES];
3344
}
45+
NSLog(@"test over");
3446
}
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3648
- (void)stopThread {
3749
CFRunLoopStop(CFRunLoopGetCurrent());
50+
// [[NSRunLoop currentRunLoop] removePort:self.emptyPort forMode:NSDefaultRunLoopMode];
3851
NSThread *thread = [NSThread currentThread];
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[thread cancel];
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}
@@ -49,8 +62,9 @@ - (void)run {
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[runLoop addPort:self.emptyPort forMode:NSDefaultRunLoopMode];
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// 下面这两种写法都不可取
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// [runLoop run];
52-
// [runLoop runMode:NSRunLoopCommonModes beforeDate:[NSDate distantFuture]];
53-
CFRunLoopRun();
65+
[runLoop runMode:NSRunLoopCommonModes beforeDate:[NSDate distantFuture]];
66+
// CFRunLoopRun();
67+
NSLog(@"run over");
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}
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}
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