InputChannel-JNI
E/InputChannel-JNI( 444): Error 9 dup channel fd -2147483647.
- 2147483647 = FFFF FFFF 8000 0001
190 static void android_view_InputChannel_nativeReadFromParcel(JNIEnv* env, jobject obj, 191 jobject parcelObj) { 192 if (android_view_InputChannel_getNativeInputChannel(env, obj) != NULL) { 193 jniThrowException(env, "java/lang/IllegalStateException", 194 "This object already has a native input channel."); 195 return; 196 } 197 198 Parcel* parcel = parcelForJavaObject(env, parcelObj); 199 if (parcel) { 200 bool isInitialized = parcel->readInt32(); 201 if (isInitialized) { 202 String8 name = parcel->readString8(); 203 int rawFd = parcel->readFileDescriptor(); 204 int dupFd = dup(rawFd); 205 if (dupFd < 0) { 206 ALOGE("Error %d dup channel fd %d.", errno, rawFd); <=======ここでエラーログ 207 jniThrowRuntimeException(env, 208 "Could not read input channel file descriptors from parcel."); 209 return; 210 } 211 212 InputChannel* inputChannel = new InputChannel(name, dupFd); 213 NativeInputChannel* nativeInputChannel = new NativeInputChannel(inputChannel); 214 215 android_view_InputChannel_setNativeInputChannel(env, obj, nativeInputChannel); 216 } 217 } 218 }
1093 int Parcel::readFileDescriptor() const 1094 { 1095 const flat_binder_object* flat = readObject(true); 1096 if (flat) { <= NGパターン１：この値が0だった。 1097 switch (flat->type) { <= NGパターン２：typeの値がおかしい。 1098 case BINDER_TYPE_FD: 1099 //ALOGI("Returning file descriptor %ld from parcel %p\n", flat->handle, this); 1100 return flat->handle; 1101 } 1102 } 1103 return BAD_TYPE; <=== こっちを通った。 1104 }
45 enum { 46 OK = 0, // Everything's swell. 47 NO_ERROR = 0, // No errors. 48 49 UNKNOWN_ERROR = 0x80000000, 50 51 NO_MEMORY = -ENOMEM, 52 INVALID_OPERATION = -ENOSYS, 53 BAD_VALUE = -EINVAL, 54 BAD_TYPE = 0x80000001, <============= この値を使用 55 NAME_NOT_FOUND = -ENOENT, 56 PERMISSION_DENIED = -EPERM, 57 NO_INIT = -ENODEV, 58 ALREADY_EXISTS = -EEXIST, 59 DEAD_OBJECT = -EPIPE, 60 FAILED_TRANSACTION = 0x80000002, 61 JPARKS_BROKE_IT = -EPIPE, 62 #if !defined(HAVE_MS_C_RUNTIME) 63 BAD_INDEX = -EOVERFLOW, 64 NOT_ENOUGH_DATA = -ENODATA, 65 WOULD_BLOCK = -EWOULDBLOCK, 66 TIMED_OUT = -ETIMEDOUT, 67 UNKNOWN_TRANSACTION = -EBADMSG, 68 #else 69 BAD_INDEX = -E2BIG, 70 NOT_ENOUGH_DATA = 0x80000003, 71 WOULD_BLOCK = 0x80000004, 72 TIMED_OUT = 0x80000005, 73 UNKNOWN_TRANSACTION = 0x80000006, 74 #endif 75 FDS_NOT_ALLOWED = 0x80000007, 76 };
39 struct flat_binder_object { 40 unsigned long type; 41 unsigned long flags; 42 union { 43 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 44 void *binder; 45 signed long handle; 46 }; 47 void *cookie; 48 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 49 };
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130 public void readFromParcel(Parcel in) { 131 if (in == null) { 132 throw new IllegalArgumentException("in must not be null"); 133 } 134 135 nativeReadFromParcel(in); 136 }
readFromparcelは、いろいろな場所で使われている。
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E/AndroidRuntime( ): java.lang.RuntimeException: Error receiving broadcast Intent { act=android.intent.action.hoge flg=0x60000010 } in com.android.fuga$21@42989f20
724 public void run() { 725 final BroadcastReceiver receiver = mReceiver; 726 final boolean ordered = mOrdered; 727 728 if (ActivityThread.DEBUG_BROADCAST) { 729 int seq = mCurIntent.getIntExtra("seq", -1); 730 Slog.i(ActivityThread.TAG, "Dispatching broadcast " + mCurIntent.getAction() 731 + " seq=" + seq + " to " + mReceiver); 732 Slog.i(ActivityThread.TAG, " mRegistered=" + mRegistered 733 + " mOrderedHint=" + ordered); 734 } 735 736 final IActivityManager mgr = ActivityManagerNative.getDefault(); 737 final Intent intent = mCurIntent; 738 mCurIntent = null; 739 740 if (receiver == null || mForgotten) { 741 if (mRegistered && ordered) { 742 if (ActivityThread.DEBUG_BROADCAST) Slog.i(ActivityThread.TAG, 743 "Finishing null broadcast to " + mReceiver); 744 sendFinished(mgr); 745 } 746 return; 747 } 748 749 Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "broadcastReceiveReg"); 750 try { 751 ClassLoader cl = mReceiver.getClass().getClassLoader(); 752 intent.setExtrasClassLoader(cl); 753 setExtrasClassLoader(cl); 754 receiver.setPendingResult(this); 755 receiver.onReceive(mContext, intent); 756 } catch (Exception e) { 757 if (mRegistered && ordered) { 758 if (ActivityThread.DEBUG_BROADCAST) Slog.i(ActivityThread.TAG, 759 "Finishing failed broadcast to " + mReceiver); 760 sendFinished(mgr); 761 } 762 if (mInstrumentation == null || 763 !mInstrumentation.onException(mReceiver, e)) { 764 Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER); 765 throw new RuntimeException( 766 "Error receiving broadcast " + intent 767 + " in " + mReceiver, e); <====ここを通った。 768 } 769 } 770 771 if (receiver.getPendingResult() != null) { 772 finish(); 773 } 774 Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER); 775 } 776 }
22 #define B_PACK_CHARS(c1, c2, c3, c4) ((((c1)<<24)) | (((c2)<<16)) | (((c3)<<8)) | (c4)) 23 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 24 #define B_TYPE_LARGE 0x85 25 enum { 26 BINDER_TYPE_BINDER = B_PACK_CHARS('s', 'b', '*', B_TYPE_LARGE), 27 BINDER_TYPE_WEAK_BINDER = B_PACK_CHARS('w', 'b', '*', B_TYPE_LARGE), 28 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 29 BINDER_TYPE_HANDLE = B_PACK_CHARS('s', 'h', '*', B_TYPE_LARGE), 30 BINDER_TYPE_WEAK_HANDLE = B_PACK_CHARS('w', 'h', '*', B_TYPE_LARGE), 31 BINDER_TYPE_FD = B_PACK_CHARS('f', 'd', '*', B_TYPE_LARGE), 32 };
713 status_t Parcel::writeFileDescriptor(int fd, bool takeOwnership) 714 { 715 flat_binder_object obj; 716 obj.type = BINDER_TYPE_FD; 717 obj.flags = 0x7f | FLAT_BINDER_FLAG_ACCEPTS_FDS; 718 obj.handle = fd; 719 obj.cookie = (void*) (takeOwnership ? 1 : 0); 720 return writeObject(obj, true); 721 }
