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Android's java.io.FileDescriptor is different

This commit is contained in:
Veloman Yunkan 2020-12-06 00:12:52 +04:00 committed by Emmanuel Engelhart
parent 9cdf7a44c0
commit e028bcbb04
1 changed files with 8 additions and 0 deletions
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8
src/wrapper/java/kiwixreader.cpp
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@ -52,6 +52,14 @@ int jni2fd(const jobject& fdObj, JNIEnv* env)
{ {
jclass class_fdesc = env->FindClass("java/io/FileDescriptor"); jclass class_fdesc = env->FindClass("java/io/FileDescriptor");
jfieldID field_fd = env->GetFieldID(class_fdesc, "fd", "I"); jfieldID field_fd = env->GetFieldID(class_fdesc, "fd", "I");
if ( field_fd == NULL )
{
env->ExceptionClear();
// Under Android the (private) 'fd' field of java.io.FileDescriptor has been
// renamed to 'descriptor'. See, for example,
// https://android.googlesource.com/platform/libcore/+/refs/tags/android-8.1.0_r1/ojluni/src/main/java/java/io/FileDescriptor.java#55
field_fd = env->GetFieldID(class_fdesc, "descriptor", "I");
}
return env->GetIntField(fdObj, field_fd); return env->GetIntField(fdObj, field_fd);
} }