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8324048: (fc) Make FileKey fields final

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Reviewed-by: djelinski, alanb, jpai
This commit is contained in:
Brian Burkhalter 2024-08-23 16:32:14 +00:00
parent a461369f16
commit 23dc3b0246
4 changed files with 43 additions and 56 deletions
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28
src/java.base/windows/native/libnio/ch/FileKey.c
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2005, 2023, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2005, 2024, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -30,32 +30,20 @@
#include "nio_util.h"
#include "sun_nio_ch_FileKey.h"
static jfieldID key_volumeSN; /* id for FileKey.dwVolumeSerialNumber */
static jfieldID key_indexHigh; /* id for FileKey.nFileIndexHigh */
static jfieldID key_indexLow; /* id for FileKey.nFileIndexLow */
JNIEXPORT void JNICALL
Java_sun_nio_ch_FileKey_initIDs(JNIEnv *env, jclass clazz)
Java_sun_nio_ch_FileKey_init(JNIEnv *env, jclass clazz, jobject fdo, jintArray finfo)
{
CHECK_NULL(key_volumeSN = (*env)->GetFieldID(env, clazz, "dwVolumeSerialNumber", "I"));
CHECK_NULL(key_indexHigh = (*env)->GetFieldID(env, clazz, "nFileIndexHigh", "I"));
CHECK_NULL(key_indexLow = (*env)->GetFieldID(env, clazz, "nFileIndexLow", "I"));
}
JNIEXPORT void JNICALL
Java_sun_nio_ch_FileKey_init(JNIEnv *env, jobject this, jobject fdo)
{
HANDLE fileHandle = (HANDLE)(handleval(env, fdo));
HANDLE fileHandle = (HANDLE)handleval(env, fdo);
BOOL result;
BY_HANDLE_FILE_INFORMATION fileInfo;
jint info[3];
result = GetFileInformationByHandle(fileHandle, &fileInfo);
if (result) {
(*env)->SetIntField(env, this, key_volumeSN, fileInfo.dwVolumeSerialNumber);
(*env)->SetIntField(env, this, key_indexHigh, fileInfo.nFileIndexHigh);
(*env)->SetIntField(env, this, key_indexLow, fileInfo.nFileIndexLow);
info[0] = (jint)fileInfo.dwVolumeSerialNumber;
info[1] = (jint)fileInfo.nFileIndexHigh;
info[2] = (jint)fileInfo.nFileIndexLow;
(*env)->SetIntArrayRegion(env, finfo, 0, 3, info);
} else {
JNU_ThrowIOExceptionWithLastError(env, "GetFileInformationByHandle failed");
}