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https://issues.apache.org/jira/browse/HDFS-16463?focusedWorklogId=778696&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-778696
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ASF GitHub Bot logged work on HDFS-16463:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 06/Jun/22 16:47
Start Date: 06/Jun/22 16:47
Worklog Time Spent: 10m
Work Description: goiri commented on code in PR #4370:
URL: https://github.com/apache/hadoop/pull/4370#discussion_r890340126
##########
hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/lib/x-platform/c-api/dirent.cc:
##########
@@ -0,0 +1,100 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <algorithm>
+#include <cerrno>
+#include <iostream>
+#include <iterator>
+#include <system_error>
+#include <variant>
+
+#include "x-platform/c-api/dirent.h"
+#include "x-platform/dirent.h"
+
+#if defined(WIN32) && defined(__cplusplus)
Review Comment:
I'm OK with the extern, what looks weird is to use if/endif to wrap it.
Isn't there a cleaner way where we have the core in a header file and then
we have the extern in some other and we do include or not accordingly?
```
extern "C" {
#include <xxx.h>
}
```
Issue Time Tracking
-------------------
Worklog Id: (was: 778696)
Time Spent: 3h 50m (was: 3h 40m)
> Make dirent cross platform compatible
> -------------------------------------
>
> Key: HDFS-16463
> URL: https://issues.apache.org/jira/browse/HDFS-16463
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: libhdfs++
> Affects Versions: 3.4.0
> Environment: Windows 10
> Reporter: Gautham Banasandra
> Assignee: Gautham Banasandra
> Priority: Major
> Labels: libhdfscpp, pull-request-available
> Time Spent: 3h 50m
> Remaining Estimate: 0h
>
> [jnihelper.c|https://github.com/apache/hadoop/blob/1fed18bb2d8ac3dbaecc3feddded30bed918d556/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfs/jni_helper.c#L28]
> in HDFS native client uses *dirent.h*. This header file isn't available on
> Windows. Thus, we need to replace this with a cross platform compatible
> implementation for dirent.
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