我最近在以下问题中遇到了问题,即线程中的对象在线程被杀死之前没有被删除:
我决定在删除之前将对象移动到主线程,如下所示:
void WorkspaceBase::deleteFinishedUploader() {
FileUploader *fileUploader = qobject_cast<FileUploader*>(sender());
if(fileUploader != NULL) {
fileUploader->moveToThread(this->thread());
fileUploader->deleteLater();
}
}
在 Windows 中,我从来没有收到任何警告,它似乎工作正常。现在在 OSX 中,我每次完成都会收到以下警告:
On Mac OS X, you might be loading two sets of Qt binaries into the same process. Check that all plugins are compiled against the right Qt binaries. Export DYLD_PRINT_LIBRARIES=1 and check that only one set of binaries are being loaded.
QObject::moveToThread: Current thread (0x102a07180) is not the object's thread (0x116428090).
Cannot move to target thread (0x102a07180)
我不太确定问题是什么,但会尽量描述我的项目。
首先,我有一个共享的 dylib,供我的其他 dylib 和应用程序使用。另一个 dylib 使用 Shared.dylib 并包含将内容上传到 Internet 时的所有功能(QNetworkAccessManager 等)。然后我有我的应用程序,其中包括这个 dylib,以及 shared.dylib(其中包含一些帮助方法和解析器)。这些库以及来自 boost 和 qjson.framework 的 date_time.dylib 被添加到 .app-package。
一切都完美地构建和运行,只有当我尝试将 Uploader 对象移动到主线程时才会出现此问题。Uploader 对象是 App 可执行文件的一部分,不位于 .dylib 中(但它使用库进行上传)。
这里可能是什么问题?不确定我以前是否遇到过这个问题,我也不太确定我做了什么。如果我提供的信息还不够,我很乐意添加更多信息。当我不知道问题是什么时,很难知道在哪里看。
谢谢!
编辑:
这些是我在运行时加载的库:
dyld: loaded: /Users/me/Documents/MyApp/MyApp.app/Contents/MacOS/./MyApp
dyld: loaded: /Users/me/Documents/MyApp/MyApp.app/Contents/MacOS/qjson.framework/Versions/0/qjson
dyld: loaded: /Users/me/Documents/MyApp/MyApp.app/Contents/MacOS/libboost_date_time.dylib
dyld: loaded: /Users/me/Documents/MyApp/MyApp.app/Contents/MacOS/libQt.Shared.1.dylib
dyld: loaded: /Users/me/Documents/MyApp/MyApp.app/Contents/MacOS/libQt.Framework.Network.1.dylib
dyld: loaded: /Users/me/QtSDK1.2.1/Desktop/Qt/4.8.1/gcc/lib/QtGui.framework/Versions/4/QtGui
dyld: loaded: /Users/me/QtSDK1.2.1/Desktop/Qt/4.8.1/gcc/lib/QtCore.framework/Versions/4/QtCore
dyld: loaded: /Users/me/QtSDK1.2.1/Desktop/Qt/4.8.1/gcc/lib/QtNetwork.framework/Versions/4/QtNetwork
dyld: loaded: /usr/lib/libstdc++.6.dylib
dyld: loaded: /usr/lib/libSystem.B.dylib
dyld: loaded: /usr/lib/libz.1.dylib
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/ApplicationServices
dyld: loaded: /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
dyld: loaded: /System/Library/Frameworks/Security.framework/Versions/A/Security
dyld: loaded: /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices
dyld: loaded: /usr/lib/system/libmathCommon.A.dylib
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/CoreGraphics
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/ImageIO
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreText.framework/Versions/A/CoreText
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Versions/A/ATS
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ColorSync.framework/Versions/A/ColorSync
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/HIServices.framework/Versions/A/HIServices
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/LangAnalysis.framework/Versions/A/LangAnalysis
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/PrintCore.framework/Versions/A/PrintCore
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/QD.framework/Versions/A/QD
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/SpeechSynthesis.framework/Versions/A/SpeechSynthesis
dyld: loaded: /usr/lib/libbsm.0.dylib
dyld: loaded: /usr/lib/libicucore.A.dylib
dyld: loaded: /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
dyld: loaded: /usr/lib/system/libkxld.dylib
dyld: loaded: /usr/lib/libauto.dylib
dyld: loaded: /usr/lib/libobjc.A.dylib
dyld: loaded: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore
dyld: loaded: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CFNetwork.framework/Versions/A/CFNetwork
dyld: loaded: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Metadata.framework/Versions/A/Metadata
dyld: loaded: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServices.framework/Versions/A/OSServices
dyld: loaded: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/SearchKit.framework/Versions/A/SearchKit
dyld: loaded: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/AE.framework/Versions/A/AE
dyld: loaded: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/LaunchServices
dyld: loaded: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/DictionaryServices.framework/Versions/A/DictionaryServices
dyld: loaded: /System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration
dyld: loaded: /System/Library/Frameworks/NetFS.framework/Versions/A/NetFS
dyld: loaded: /usr/lib/libsqlite3.dylib
dyld: loaded: /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfiguration
dyld: loaded: /usr/lib/libxslt.1.dylib
dyld: loaded: /usr/lib/libxml2.2.dylib
dyld: loaded: /System/Library/Frameworks/Accelerate.framework/Versions/A/Accelerate
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libTIFF.dylib
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libGIF.dylib
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libPng.dylib
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libRadiance.dylib
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libJPEG.dylib
dyld: loaded: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vImage.framework/Versions/A/vImage
dyld: loaded: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/vecLib
dyld: loaded: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libvDSP.dylib
dyld: loaded: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libvMisc.dylib
dyld: loaded: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
dyld: loaded: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libLAPACK.dylib
dyld: loaded: /usr/lib/libcrypto.0.9.8.dylib
dyld: loaded: /System/Library/PrivateFrameworks/TrustEvaluationAgent.framework/Versions/A/TrustEvaluationAgent
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Versions/A/Resources/libFontParser.dylib
dyld: loaded: /usr/lib/libcups.2.dylib
dyld: loaded: /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation
dyld: loaded: /System/Library/Frameworks/Kerberos.framework/Versions/A/Kerberos
dyld: loaded: /usr/lib/libresolv.9.dylib
dyld: loaded: /Users/annatisch/QtSDK1.2.1/Desktop/Qt/4.8.1/gcc/lib/QtXml.framework/Versions/4/QtXml
dyld: loaded: /System/Library/Frameworks/Carbon.framework/Versions/A/Carbon
dyld: loaded: /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit
dyld: loaded: /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/CommonPanels.framework/Versions/A/CommonPanels
dyld: loaded: /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Help.framework/Versions/A/Help
dyld: loaded: /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox
dyld: loaded: /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/ImageCapture.framework/Versions/A/ImageCapture
dyld: loaded: /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Ink.framework/Versions/A/Ink
dyld: loaded: /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/OpenScripting.framework/Versions/A/OpenScripting
dyld: loaded: /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Print.framework/Versions/A/Print
dyld: loaded: /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/SecurityHI.framework/Versions/A/SecurityHI
dyld: loaded: /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/SpeechRecognition.framework/Versions/A/SpeechRecognition
dyld: loaded: /System/Library/PrivateFrameworks/CoreUI.framework/Versions/A/CoreUI
dyld: loaded: /System/Library/Frameworks/QuartzCore.framework/Versions/A/QuartzCore
dyld: loaded: /System/Library/PrivateFrameworks/DesktopServicesPriv.framework/Versions/A/DesktopServicesPriv
dyld: loaded: /System/Library/Frameworks/AudioToolbox.framework/Versions/A/AudioToolbox
dyld: loaded: /System/Library/PrivateFrameworks/FamilyControls.framework/Versions/A/FamilyControls
dyld: loaded: /System/Library/PrivateFrameworks/MultitouchSupport.framework/Versions/A/MultitouchSupport
dyld: loaded: /System/Library/Frameworks/CoreVideo.framework/Versions/A/CoreVideo
dyld: loaded: /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL
dyld: loaded: /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLImage.dylib
dyld: loaded: /System/Library/Frameworks/OpenCL.framework/Versions/A/OpenCL
dyld: loaded: /System/Library/Frameworks/IOSurface.framework/Versions/A/IOSurface
dyld: loaded: /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLU.dylib
dyld: loaded: /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib
dyld: loaded: /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLProgrammability.dylib
dyld: loaded: /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libCoreVMClient.dylib
dyld: loaded: /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGFXShared.dylib
dyld: loaded: /System/Library/Frameworks/CoreAudio.framework/Versions/A/CoreAudio
dyld: loaded: /System/Library/Frameworks/AudioUnit.framework/Versions/A/AudioUnit
dyld: loaded: /System/Library/Frameworks/vecLib.framework/Versions/A/vecLib
dyld: loaded: /System/Library/Frameworks/SecurityFoundation.framework/Versions/A/SecurityFoundation
dyld: loaded: /System/Library/Frameworks/OpenDirectory.framework/Versions/A/OpenDirectory
dyld: loaded: /System/Library/PrivateFrameworks/CommerceKit.framework/Versions/A/Frameworks/CommerceCore.framework/Versions/A/CommerceCore
dyld: loaded: /System/Library/Frameworks/OpenDirectory.framework/Versions/A/Frameworks/CFOpenDirectory.framework/Versions/A/CFOpenDirectory
dyld: loaded: /System/Library/PrivateFrameworks/PasswordServer.framework/Versions/A/PasswordServer
dyld: loaded: /System/Library/Frameworks/DirectoryService.framework/Versions/A/DirectoryService
dyld: loaded: /usr/lib/libsasl2.2.dylib
dyld: loaded: /System/Library/Frameworks/CoreData.framework/Versions/A/CoreData
dyld: loaded: /usr/lib/liblangid.dylib
dyld: loaded: /usr/lib/libiconv.2.dylib
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libCSync.A.dylib
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Frameworks/ColorSync.framework/Versions/A/Resources/ColorSyncDeprecated.dylib
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libRIP.A.dylib
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Versions/A/Resources/libFontRegistry.dylib
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libCGXType.A.dylib
dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Versions/A/Resources/libTrueTypeScaler.dylib
QDir(
dyld: loaded: /Users/me/QtSDK1.2.1/Desktop/Qt/4.8.1/gcc/plugins/bearer/libqcorewlanbearer.dylib
dyld: loaded: /System/Library/Frameworks/CoreWLAN.framework/Versions/A/CoreWLAN
dyld: loaded: /Users/me/QtSDK1.2.1/Desktop/Qt/4.8.1/gcc/plugins/bearer/libqgenericbearer.dylib
dyld: loaded: /usr/lib/libssl.0.9.8.dylib
我看不到任何重复项,因此它必须与对象的移动有关。我如何能够将对象从主线程移动到主线程。我在某处读到出于安全原因这是不可能的,但我真的需要移动它以便可以完全删除它(这意味着它需要一个事件循环,而不是它当前的 QThread 会被杀死)