RFR: JDK-8286869: unify os::dir_is_empty across posix platforms

[Matthias Baesken]

On Wed, 18 May 2022 06:44:13 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> The os::dir_is_empty coding is very similar across Posix platforms and could be unified to os_posix.cpp .
>
> src/hotspot/os/posix/os_posix.cpp line 260:
> 
>> 258:   // Scan the directory
>> 259:   bool result = true;
>> 260:   while (result && (ptr = readdir(dir)) != NULL) {
> 
> This will call `os::readdir` when we can just call `::readdir` directly.

Hi David , so do you suggest to use ::readdir instead ? What about opendir and closedir, should we use as well ::opendir and ::closedir ?

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PR: https://git.openjdk.java.net/jdk/pull/8750