android.system.ErrnoException：ioctl 失败：EBADF（错误的文件描述符）来自 data/data 文件夹的文件
android.system.ErrnoException: ioctl failed: EBADF (Bad file descriptor) with file from data/data folder
我将 Android Studio 中的同一个应用程序安装到不同的设备上，它已成功安装在所有设备上，但启动后，当我在某些设备上处理此应用程序内部存储中的文件时，出现以下错误:
E/java: [FileUploader] java.io.IOException: ioctl failed: EBADF (Bad file descriptor)
at libcore.io.IoBridge.available(IoBridge.java:74)
at java.io.FileInputStream.available(FileInputStream.java:108)
at packagename.FileUploader.contentLength(FileUploader.java:530)
at okhttp3.internal.http.CallServerInterceptor.intercept(CallServerInterceptor.java:67)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at com.android.tools.profiler.agent.okhttp.OkHttp3Interceptor.intercept(OkHttp3Interceptor.java:57)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:45)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:125)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:200)
at okhttp3.RealCall.execute(RealCall.java:77)
at packagename.performFileUploadRequest(FileUploader.java:483)
at packagename.FileUploader.performUploadRequestByType(FileUploader.java:429)
at com
11-16 11:45:03.138 20253-21432/packagename E/java: .packagename.FileUploader.tryUploadFileToServer(FileUploader.java:393)
at packagename.FileUploader.lambda$uploadFileToServer(FileUploader.java:302)
at packagename.-$$Lambda$FileUploader$MZ_TG9wHD8CqIUeh0jeiS8COakc.call(lambda)
at rx.Observable.unsafeSubscribe(Observable.java:10256)
at rx.internal.operators.OperatorMerge$MergeSubscriber.onNext(OperatorMerge.java:248)
at rx.internal.operators.OperatorMerge$MergeSubscriber.onNext(OperatorMerge.java:148)
at rx.internal.operators.OnSubscribeMap$MapSubscriber.onNext(OnSubscribeMap.java:77)
at rx.observers.Subscribers.onNext(Subscribers.java:235)
at rx.internal.util.ScalarSynchronousObservable$WeakSingleProducer.request(ScalarSynchronousObservable.java:276)
at rx.Subscriber.setProducer(Subscriber.java:211)
at rx.internal.operators.OnSubscribeMap$MapSubscriber.setProducer(OnSubscribeMap.java:102)
at rx.Subscriber.setProducer(Subscriber.java:205)
at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:138)
at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:129)
at rx.Observable.unsafeSubscribe(Observable.java:10256)
at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:51)
at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:35)
at rx.Observable.unsafeSubscribe(Observable.java:10256)
at rx.internal.operators.OnSubscribeMap.call(OnSubscribeMap.java:48)
at rx.internal.operators.OnSubscribeMap.call(OnSubscribeMap.java:33)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
at rx.Observable.unsafeSubscribe(Observable.java:10256)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.
11-16 11:45:03.138 20253-21432/packagename E/java: java:41)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30)
at rx.Observable.unsafeSubscribe(Observable.java:10256)
at rx.internal.operators.OperatorSubscribeOn$SubscribeOnSubscriber.call(OperatorSubscribeOn.java:100)
at rx.internal.schedulers.CachedThreadScheduler$EventLoopWorker.call(CachedThreadScheduler.java:230)
at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:55)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:423)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access1(ScheduledThreadPoolExecutor.java:154)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:269)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: android.system.ErrnoException: ioctl failed: EBADF (Bad file descriptor)
at libcore.io.Posix.ioctlInt(Native Method)
at libcore.io.ForwardingOs.ioctlInt(ForwardingOs.java:103)
at libcore.io.IoBridge.available(IoBridge.java:58)
... 60 more
同时同一个应用程序在不同的设备上工作，没有这个例外。我在根设备上检查过它，即使发生此异常，zip 文件也存在于 data/data/packagename/files 文件夹中。异常点的代码如下（符合fileStream.available()）：
RequestBody requestBody = new RequestBody() {
@Override
public MediaType contentType() {
return MediaType.parse(file.getMimeType());
}
@Override
public long contentLength() throws IOException {
return fileStream.available();
}
@Override
public void writeTo(BufferedSink sink) throws IOException {
Source source = null;
try {
source = Okio.source(fileStream);
sink.writeAll(source);
} finally {
Util.closeQuietly(source);
}
}
};
其中 RequestBody 是来自 okhttp3 库的抽象 class。这个错误的原因是什么？
P.S. 我也尝试安装此应用程序的 apk，它是在其他计算机上构建的（我在我的计算机上使用 adb 安装它），但没有使用这些文件没有任何重大变化，并且它在之前发生此异常的相同设备上无一例外地运行......所以它让我更加困惑......
P.S.S. 当我在 Android Studio 中使用终端和 gradlew 任务构建相同的应用程序时，比 运行 按钮，这个应用程序没有这个错误。所以这似乎与我的 Android 工作室有关，但我什至无法想象到底是什么，这让我大吃一惊...
难以置信，但原因是 Run/Debug 配置中的启用复选框：“启用高级分析（[API 仅限 < 26 级）”。它解释了为什么在某些设备上一切正常 - 因为它在 Android 8.0 的设备上正常工作 - 即 API 26。但是这个复选框如何与 Android 文件系统（或者，特别是内部存储），我还是不明白...
我将 Android Studio 中的同一个应用程序安装到不同的设备上，它已成功安装在所有设备上，但启动后，当我在某些设备上处理此应用程序内部存储中的文件时，出现以下错误:
E/java: [FileUploader] java.io.IOException: ioctl failed: EBADF (Bad file descriptor)
at libcore.io.IoBridge.available(IoBridge.java:74)
at java.io.FileInputStream.available(FileInputStream.java:108)
at packagename.FileUploader.contentLength(FileUploader.java:530)
at okhttp3.internal.http.CallServerInterceptor.intercept(CallServerInterceptor.java:67)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at com.android.tools.profiler.agent.okhttp.OkHttp3Interceptor.intercept(OkHttp3Interceptor.java:57)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:45)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:125)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:200)
at okhttp3.RealCall.execute(RealCall.java:77)
at packagename.performFileUploadRequest(FileUploader.java:483)
at packagename.FileUploader.performUploadRequestByType(FileUploader.java:429)
at com
11-16 11:45:03.138 20253-21432/packagename E/java: .packagename.FileUploader.tryUploadFileToServer(FileUploader.java:393)
at packagename.FileUploader.lambda$uploadFileToServer(FileUploader.java:302)
at packagename.-$$Lambda$FileUploader$MZ_TG9wHD8CqIUeh0jeiS8COakc.call(lambda)
at rx.Observable.unsafeSubscribe(Observable.java:10256)
at rx.internal.operators.OperatorMerge$MergeSubscriber.onNext(OperatorMerge.java:248)
at rx.internal.operators.OperatorMerge$MergeSubscriber.onNext(OperatorMerge.java:148)
at rx.internal.operators.OnSubscribeMap$MapSubscriber.onNext(OnSubscribeMap.java:77)
at rx.observers.Subscribers.onNext(Subscribers.java:235)
at rx.internal.util.ScalarSynchronousObservable$WeakSingleProducer.request(ScalarSynchronousObservable.java:276)
at rx.Subscriber.setProducer(Subscriber.java:211)
at rx.internal.operators.OnSubscribeMap$MapSubscriber.setProducer(OnSubscribeMap.java:102)
at rx.Subscriber.setProducer(Subscriber.java:205)
at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:138)
at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:129)
at rx.Observable.unsafeSubscribe(Observable.java:10256)
at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:51)
at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:35)
at rx.Observable.unsafeSubscribe(Observable.java:10256)
at rx.internal.operators.OnSubscribeMap.call(OnSubscribeMap.java:48)
at rx.internal.operators.OnSubscribeMap.call(OnSubscribeMap.java:33)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
at rx.Observable.unsafeSubscribe(Observable.java:10256)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.
11-16 11:45:03.138 20253-21432/packagename E/java: java:41)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30)
at rx.Observable.unsafeSubscribe(Observable.java:10256)
at rx.internal.operators.OperatorSubscribeOn$SubscribeOnSubscriber.call(OperatorSubscribeOn.java:100)
at rx.internal.schedulers.CachedThreadScheduler$EventLoopWorker.call(CachedThreadScheduler.java:230)
at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:55)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:423)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access1(ScheduledThreadPoolExecutor.java:154)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:269)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: android.system.ErrnoException: ioctl failed: EBADF (Bad file descriptor)
at libcore.io.Posix.ioctlInt(Native Method)
at libcore.io.ForwardingOs.ioctlInt(ForwardingOs.java:103)
at libcore.io.IoBridge.available(IoBridge.java:58)
... 60 more
同时同一个应用程序在不同的设备上工作，没有这个例外。我在根设备上检查过它，即使发生此异常，zip 文件也存在于 data/data/packagename/files 文件夹中。异常点的代码如下（符合fileStream.available()）：
RequestBody requestBody = new RequestBody() {
@Override
public MediaType contentType() {
return MediaType.parse(file.getMimeType());
}
@Override
public long contentLength() throws IOException {
return fileStream.available();
}
@Override
public void writeTo(BufferedSink sink) throws IOException {
Source source = null;
try {
source = Okio.source(fileStream);
sink.writeAll(source);
} finally {
Util.closeQuietly(source);
}
}
};
其中 RequestBody 是来自 okhttp3 库的抽象 class。这个错误的原因是什么？
P.S. 我也尝试安装此应用程序的 apk，它是在其他计算机上构建的（我在我的计算机上使用 adb 安装它），但没有使用这些文件没有任何重大变化，并且它在之前发生此异常的相同设备上无一例外地运行......所以它让我更加困惑......
P.S.S. 当我在 Android Studio 中使用终端和 gradlew 任务构建相同的应用程序时，比 运行 按钮，这个应用程序没有这个错误。所以这似乎与我的 Android 工作室有关，但我什至无法想象到底是什么，这让我大吃一惊...
难以置信，但原因是 Run/Debug 配置中的启用复选框：“启用高级分析（[API 仅限 < 26 级）”。它解释了为什么在某些设备上一切正常 - 因为它在 Android 8.0 的设备上正常工作 - 即 API 26。但是这个复选框如何与 Android 文件系统（或者，特别是内部存储），我还是不明白...