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Kernel: Closing a file descriptor should not always close the file

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When there is more than one file descriptor for a file closing
one of them should not close the underlying file.

Previously this relied on the file's ref_count() but at least
for sockets this didn't work reliably.
This commit is contained in:
Gunnar Beutner 2021-04-30 10:33:33 +02:00 • committed by Andreas Kling
commit 7a1d09ef1a
Notes: sideshowbarker 2024-07-18 18:52:44 +09:00
3 changed files with 17 additions and 3 deletions
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2
Kernel/FileSystem/FileDescription.cpp
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@ -288,7 +288,7 @@ MasterPTY* FileDescription::master_pty()
KResult FileDescription::close()
{
if (m_file->ref_count() > 1)
if (m_file->attach_count() > 0)
return KSuccess;
return m_file->close();
}