upload JNI solution temporary

Author: sendaoYan

test/jdk/java/nio/file/attribute/BasicFileAttributeView/CreationTime.java

@@ -44,9 +44,7 @@
 import java.nio.file.Files;
 import java.nio.file.attribute.*;
 import java.time.Instant;
-import java.io.BufferedReader;
 import java.io.IOException;
-import java.io.InputStreamReader;
 
 import jdk.test.lib.Platform;
 import jtreg.SkippedException;
@@ -109,7 +107,7 @@ static void test(Path top) throws IOException {
             }
         } else if (Platform.isLinux()) {
             // Creation time read depends on statx system call support
-            supportsCreationTimeRead = CreationTimeHelper.linuxIsCreationTimeSupported();
+            supportsCreationTimeRead = CreationTimeHelper.linuxIsCreationTimeSupported(file.toAbsolutePath().toString());
             // Creation time updates are not supported on Linux
             supportsCreationTimeWrite = false;
         }
@@ -124,8 +122,11 @@ static void test(Path top) throws IOException {
             Instant plusHour = Instant.now().plusSeconds(60L * 60L);
             Files.setLastModifiedTime(file, FileTime.from(plusHour));
             FileTime current = creationTime(file);
-            if (!current.equals(creationTime))
+            if (!current.equals(creationTime)) {
+                System.out.println("current = " + current);
+                System.out.println("creationTime = " + creationTime);
                 throw new RuntimeException("Creation time should not have changed");
+            }
         }
 
         /**

test/jdk/java/nio/file/attribute/BasicFileAttributeView/CreationTimeHelper.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2023, Red Hat, Inc.
+ * Copyright (c) 2024 Alibaba Group Holding Limited. 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
@@ -27,5 +27,5 @@ public class CreationTimeHelper {
     }
 
     // Helper so as to determine 'statx' support on the runtime system
-    static native boolean linuxIsCreationTimeSupported();
+    static native boolean linuxIsCreationTimeSupported(String file);
 }

test/jdk/java/nio/file/attribute/BasicFileAttributeView/libCreationTimeHelper.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2023, Red Hat, Inc.
+ * Copyright (c) 2024 Alibaba Group Holding Limited. 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
@@ -21,17 +21,110 @@
  * questions.
  */
 #include "jni.h"
-#if defined(__linux__)
+#include <linux/fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <bits/types.h>
 #include <dlfcn.h>
+#ifndef STATX_BASIC_STATS
+#define STATX_BASIC_STATS 0x000007ffU
+#endif
+#ifndef STATX_BTIME
+#define STATX_BTIME 0x00000800U
+#endif
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#ifndef RTLD_DEFAULT
+#define RTLD_DEFAULT RTLD_LOCAL
+#endif
+
+/*
+ * Timestamp structure for the timestamps in struct statx.
+ */
+struct my_statx_timestamp {
+        __int64_t   tv_sec;
+        __uint32_t  tv_nsec;
+        __int32_t   __reserved;
+};
+
+/*
+ * struct statx used by statx system call on >= glibc 2.28
+ * systems
+ */
+struct my_statx
+{
+  __uint32_t stx_mask;
+  __uint32_t stx_blksize;
+  __uint64_t stx_attributes;
+  __uint32_t stx_nlink;
+  __uint32_t stx_uid;
+  __uint32_t stx_gid;
+  __uint16_t stx_mode;
+  __uint16_t __statx_pad1[1];
+  __uint64_t stx_ino;
+  __uint64_t stx_size;
+  __uint64_t stx_blocks;
+  __uint64_t stx_attributes_mask;
+  struct my_statx_timestamp stx_atime;
+  struct my_statx_timestamp stx_btime;
+  struct my_statx_timestamp stx_ctime;
+  struct my_statx_timestamp stx_mtime;
+  __uint32_t stx_rdev_major;
+  __uint32_t stx_rdev_minor;
+  __uint32_t stx_dev_major;
+  __uint32_t stx_dev_minor;
+  __uint64_t __statx_pad2[14];
+};
+
+#if defined(__linux__)
+typedef int statx_func(int dirfd, const char *restrict pathname, int flags,
+                       unsigned int mask, struct my_statx *restrict statxbuf);
+#endif
+#if defined(__linux__)
+static statx_func* my_statx_func = NULL;
 #endif
 
 // static native boolean linuxIsCreationTimeSupported()
 JNIEXPORT jboolean JNICALL
-Java_CreationTimeHelper_linuxIsCreationTimeSupported(JNIEnv *env, jclass cls)
-{
+Java_CreationTimeHelper_linuxIsCreationTimeSupported(JNIEnv *env, jclass cls, jstring file) {
 #if defined(__linux__)
-    void* statx_func = dlsym(RTLD_DEFAULT, "statx");
-    return statx_func != NULL ? JNI_TRUE : JNI_FALSE;
+    struct my_statx stx;
+    int ret, atflag = AT_SYMLINK_NOFOLLOW;
+    memset(&stx, 0xbf, sizeof(stx));
+    unsigned int mask = STATX_BASIC_STATS | STATX_BTIME;
+
+    my_statx_func = (statx_func*) dlsym(RTLD_DEFAULT, "statx");
+    if (my_statx_func == NULL) {
+        return JNI_FALSE;
+    }
+
+    if (file == NULL) {
+        printf("input file error!\n");
+        return JNI_FALSE;
+    }
+    const char *utfChars = (*env)->GetStringUTFChars(env, file, NULL);
+    if (utfChars == NULL) {
+        printf("jstring convert to char array error!\n");
+        return JNI_FALSE;
+    }
+
+    ret = my_statx_func(AT_FDCWD, utfChars, atflag, mask, &stx);
+
+    if (file != NULL && utfChars != NULL) {
+        (*env)->ReleaseStringUTFChars(env, file, utfChars);
+    }
+
+    #ifdef DEBUG
+    printf("birth time = %ld\n", stx.stx_btime.tv_sec);
+    #endif
+    if (ret != 0) {
+        return JNI_FALSE;
+    }
+    if (stx.stx_mask & STATX_BTIME)
+        return JNI_TRUE;
+    return JNI_FALSE;
 #else
     return JNI_FALSE;
 #endif