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Kernel: Make File::write() and File::read() return KResultOr<size_t>

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Instead of returning a ssize_t where negative values mean error,
we now return KResultOr<size_t> and use the error state to report
errors exclusively.
This commit is contained in:
Andreas Kling 2020-08-04 18:02:23 +02:00
commit 7a3ab6c517
Notes: sideshowbarker 2024-07-19 04:18:56 +09:00
58 changed files with 223 additions and 229 deletions
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6
Kernel/FileSystem/InodeWatcher.cpp
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@ -57,7 +57,7 @@ bool InodeWatcher::can_write(const FileDescription&, size_t) const
return true;
}
ssize_t InodeWatcher::read(FileDescription&, size_t, u8* buffer, ssize_t buffer_size)
KResultOr<size_t> InodeWatcher::read(FileDescription&, size_t, u8* buffer, size_t buffer_size)
{
LOCKER(m_lock);
ASSERT(!m_queue.is_empty() || !m_inode);
@ -72,9 +72,9 @@ ssize_t InodeWatcher::read(FileDescription&, size_t, u8* buffer, ssize_t buffer_
return sizeof(event);
}
ssize_t InodeWatcher::write(FileDescription&, size_t, const u8*, ssize_t)
KResultOr<size_t> InodeWatcher::write(FileDescription&, size_t, const u8*, size_t)
{
return -EIO;
return KResult(-EIO);
}
String InodeWatcher::absolute_path(const FileDescription&) const