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Everywhere: Make JSON serialization fallible

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This allows us to eliminate a major source of infallible allocation in
the Kernel, as well as lay down the groundwork for OOM fallibility in
userland.
This commit is contained in:
Idan Horowitz 2022-02-24 20:08:48 +02:00 • committed by Andreas Kling
parent 6682afb5d4
commit feb00b7105
18 changed files with 837 additions and 592 deletions
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11
Kernel/FileSystem/VirtualFileSystem.cpp
View file

@ -725,13 +725,12 @@ ErrorOr<void> VirtualFileSystem::rmdir(StringView path, Custody& base)
return parent_inode.remove_child(KLexicalPath::basename(path));
}
void VirtualFileSystem::for_each_mount(Function<IterationDecision(Mount const&)> callback) const
ErrorOr<void> VirtualFileSystem::for_each_mount(Function<ErrorOr<void>(Mount const&)> callback) const
{
m_mounts.with([&](auto& mounts) {
for (auto& mount : mounts) {
if (callback(mount) == IterationDecision::Break)
break;
}
return m_mounts.with([&](auto& mounts) -> ErrorOr<void> {
for (auto& mount : mounts)
TRY(callback(mount));
return {};
});
}

2
Kernel/FileSystem/VirtualFileSystem.h
View file

@ -68,7 +68,7 @@ public:
ErrorOr<void> mknod(StringView path, mode_t, dev_t, Custody& base);
ErrorOr<NonnullRefPtr<Custody>> open_directory(StringView path, Custody& base);
void for_each_mount(Function<IterationDecision(const Mount&)>) const;
ErrorOr<void> for_each_mount(Function<ErrorOr<void>(const Mount&)>) const;
InodeIdentifier root_inode_id() const;