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Kernel: Allow File::close() to fail

Browse source 
And pass the result through to sys$close() return value.

Fixes https://github.com/SerenityOS/serenity/issues/427
This commit is contained in:
Sergey Bugaev 2020-06-02 19:20:05 +03:00 • committed by Andreas Kling
parent d4ddb0013c
commit 1b4e88fb59
12 changed files with 23 additions and 15 deletions
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3
Kernel/FileSystem/File.cpp
View file

@ -46,8 +46,9 @@ KResultOr<NonnullRefPtr<FileDescription>> File::open(int options)
return description;
}
void File::close()
KResult File::close()
{
return KSuccess;
}
int File::ioctl(FileDescription&, unsigned, FlatPtr)

2
Kernel/FileSystem/File.h
View file

@ -69,7 +69,7 @@ public:
virtual ~File();
virtual KResultOr<NonnullRefPtr<FileDescription>> open(int options);
virtual void close();
virtual KResult close();
virtual bool can_read(const FileDescription&, size_t) const = 0;
virtual bool can_write(const FileDescription&, size_t) const = 0;

6
Kernel/FileSystem/FileDescription.cpp
View file

@ -256,9 +256,11 @@ MasterPTY* FileDescription::master_pty()
return static_cast<MasterPTY*>(m_file.ptr());
}
int FileDescription::close()
KResult FileDescription::close()
{
return 0;
if (m_file->ref_count() > 1)
return KSuccess;
return m_file->close();
}
String FileDescription::absolute_path() const

2
Kernel/FileSystem/FileDescription.h
View file

@ -65,7 +65,7 @@ public:
set_writable(options & O_WRONLY);
}
int close();
KResult close();
off_t seek(off_t, int whence);
ssize_t read(u8*, ssize_t);