主线程性能监控器🐶。它位于一个单独的线程中，并检查主线程是否在短时间内执行小命令。如果遇到延迟，它将开始抓取主线程的调用栈，然后报告调用栈的汇总树。它不需要 dSYM 文件进行符号化。

请仅在 DEBUG 下使用

#ifdef DEBUG
#import <PuppyWatchdog/PuppyWatchdog.h>
#endif

@interface AppDelegate ()

#ifdef DEBUG
@property (strong, nonatomic) MLWPuppyWatchdog *watchdog;
#endif

@end

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

#ifdef DEBUG
    self.watchdog = [[MLWPuppyWatchdog alloc] init];
#endif

}

示例

测试代码

- (NSUInteger)innerLoop {
    NSUInteger count = 0;
    for (NSUInteger i = 0; i < 100000000; i++) {
        count++;
    }
    return count;
}

- (NSUInteger)innerLoop2 {
    NSUInteger count = 0;
    for (NSUInteger i = 0; i < 50000000; i++) {
        count++;
    }
    return count;
}

测试输出

2017-01-16 23:27:11.100 xctest[79336:418608] 🐶 Main thread was blocked for 0.10 sec
2017-01-16 23:27:11.200 xctest[79336:418608] 🐶 Main thread is still blocked for 0.20 sec
2017-01-16 23:27:11.301 xctest[79336:418608] 🐶 Main thread is still blocked for 0.30 sec
2017-01-16 23:27:11.401 xctest[79336:418608] 🐶 Main thread is still blocked for 0.40 sec
2017-01-16 23:27:11.502 xctest[79336:418608] 
🐶🐶🐶🐶🐶🐶🐶🐶🐶🐶 Collected 730 reports for 0.49 sec processed for 0.02 sec:
99.863% start (in libdyld.dylib)
| 99.863% <Unknown> (in <Unknown>)
| | 99.863% _XCTestMain (in XCTest)
| | | 99.863% -[XCTestDriver _checkForTestManager] (in XCTest)
| | | | 99.863% -[XCTestDriver _runSuite] (in XCTest)
| | | | | 99.863% -[XCTestObservationCenter _observeTestExecutionForBlock:] (in XCTest)
| | | | | | 99.863% __25-[XCTestDriver _runSuite]_block_invoke (in XCTest)
| | | | | | | 99.863% -[XCTestSuite performTest:] (in XCTest)
| | | | | | | | 99.863% -[XCTestSuite performTest:] (in XCTest)
| | | | | | | | | 99.863% -[XCTestSuite performTest:] (in XCTest)
| | | | | | | | | | 99.863% -[XCTestCase performTest:] (in XCTest)
| | | | | | | | | | | 99.863% -[XCTestCase invokeTest] (in XCTest)
| | | | | | | | | | | | 99.863% -[XCTestContext performInScope:] (in XCTest)
| | | | | | | | | | | | | 99.863% __24-[XCTestCase invokeTest]_block_invoke_2 (in XCTest)
| | | | | | | | | | | | | | 99.863% -[NSInvocation invoke] (in CoreFoundation)
| | | | | | | | | | | | | | | 99.863% __invoking___ (in CoreFoundation)
| | | | | | | | | | | | | | | | 99.863% -[Tests testExample] (in PuppyWatchdog_Tests)
| | | | | | | | | | | | | | | | | 56.521% -[Tests innerLoop] (in PuppyWatchdog_Tests)
| | | | | | | | | | | | | | | | | 43.342% -[Tests innerLoop2] (in PuppyWatchdog_Tests)
🐶🐶🐶🐶🐶🐶🐶🐶🐶🐶

要求

支持 iOS 和 macOS 平台，watchOS 和 tvOS 的支持需要在 PLCrashReporter 支持它们之后实现。

安装

PuppyWatchdog 通过 CocoaPods 提供。要安装它，只需将以下行添加到您的 Podfile 中

pod 'PuppyWatchdog', :configurations => ['Debug']

如果您使用 use_frameworks!，您可能在 Podfile 中还需要此代码

pre_install do |installer|
    def installer.verify_no_static_framework_transitive_dependencies; end
end

post_install do |installer|
    installer.pods_project.targets.flat_map(&:build_configurations).each { |bc|
        bc.build_settings['CLANG_ALLOW_NON_MODULAR_INCLUDES_IN_FRAMEWORK_MODULES'] = 'Yes'
    }
end

如果您使用 Carthage，请报告您遇到的问题。 将很快添加 Carthage 指令。

作者

Anton Bukov，[email protected]

许可证

PuppyWatchdog 在 MIT 许可证下提供。有关更多信息，请参阅 LICENSE 文件。