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8140241: (fc) Data transfer from FileChannel to itself causes hang in case of overlap

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Reviewed-by: alanb
This commit is contained in:
Brian Burkhalter 2021-08-12 15:27:09 +00:00
parent 93cab7d07d
commit 428d51694f
6 changed files with 167 additions and 7 deletions
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10
src/java.base/unix/native/libnio/ch/FileDispatcherImpl.c
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@ -338,6 +338,16 @@ Java_sun_nio_ch_FileDispatcherImpl_closeIntFD(JNIEnv *env, jclass clazz, jint fd
closeFileDescriptor(env, fd);
}
JNIEXPORT jboolean JNICALL
Java_sun_nio_ch_FileDispatcherImpl_canTransferToFromOverlappedMap0(JNIEnv *env, jclass clazz)
{
#ifdef MACOSX
return JNI_FALSE;
#else
return JNI_TRUE;
#endif
}
JNIEXPORT jint JNICALL
Java_sun_nio_ch_FileDispatcherImpl_setDirect0(JNIEnv *env, jclass clazz,
jobject fdo)