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Kernel: Make Inode::traverse_as_directory() callback return ErrorOr

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This allows us to propagate errors from inside the callback with TRY().
This commit is contained in:
Andreas Kling 2021-11-10 15:42:39 +01:00
parent a15ed8743d
commit 5ce753b74d
31 changed files with 154 additions and 151 deletions
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6
Kernel/ProcessExposed.h
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@ -67,7 +67,7 @@ class ProcFSExposedComponent : public RefCounted<ProcFSExposedComponent> {
public:
StringView name() const { return m_name->view(); }
virtual ErrorOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer&, OpenFileDescription*) const { VERIFY_NOT_REACHED(); }
virtual ErrorOr<void> traverse_as_directory(unsigned, Function<bool(FileSystem::DirectoryEntryView const&)>) const { VERIFY_NOT_REACHED(); }
virtual ErrorOr<void> traverse_as_directory(unsigned, Function<ErrorOr<void>(FileSystem::DirectoryEntryView const&)>) const { VERIFY_NOT_REACHED(); }
virtual ErrorOr<NonnullRefPtr<ProcFSExposedComponent>> lookup(StringView) { VERIFY_NOT_REACHED(); };
virtual ErrorOr<size_t> write_bytes(off_t, size_t, const UserOrKernelBuffer&, OpenFileDescription*) { return EROFS; }
virtual ErrorOr<void> truncate(u64) { return EPERM; }
@ -105,7 +105,7 @@ class ProcFSExposedDirectory
friend class ProcFSComponentRegistry;
public:
virtual ErrorOr<void> traverse_as_directory(unsigned, Function<bool(FileSystem::DirectoryEntryView const&)>) const override;
virtual ErrorOr<void> traverse_as_directory(unsigned, Function<ErrorOr<void>(FileSystem::DirectoryEntryView const&)>) const override;
virtual ErrorOr<NonnullRefPtr<ProcFSExposedComponent>> lookup(StringView name) override;
void add_component(const ProcFSExposedComponent&);
@ -147,7 +147,7 @@ public:
virtual ~ProcFSRootDirectory();
private:
virtual ErrorOr<void> traverse_as_directory(unsigned, Function<bool(FileSystem::DirectoryEntryView const&)>) const override;
virtual ErrorOr<void> traverse_as_directory(unsigned, Function<ErrorOr<void>(FileSystem::DirectoryEntryView const&)>) const override;
ProcFSRootDirectory();
};