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Kernel: Handle string format errors in SlabAllocator stats :^)

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Switch to KString::formatted and fix API so we can propagate errors.
This commit is contained in:
Brian Gianforcaro 2021-11-29 03:01:24 -08:00 • committed by Andreas Kling
parent a0e59099fc
commit 74ee491b84
3 changed files with 25 additions and 17 deletions
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24
Kernel/Heap/SlabAllocator.cpp
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@ -116,13 +116,14 @@ static_assert(sizeof(Memory::Region) <= s_slab_allocator_128.slab_size());
#endif
template<typename Callback>
void for_each_allocator(Callback callback)
ErrorOr<void> for_each_allocator(Callback callback)
{
callback(s_slab_allocator_16);
callback(s_slab_allocator_32);
callback(s_slab_allocator_64);
callback(s_slab_allocator_128);
callback(s_slab_allocator_256);
TRY(callback(s_slab_allocator_16));
TRY(callback(s_slab_allocator_32));
TRY(callback(s_slab_allocator_64));
TRY(callback(s_slab_allocator_128));
TRY(callback(s_slab_allocator_256));
return {};
}
UNMAP_AFTER_INIT void slab_alloc_init()
@ -164,13 +165,16 @@ void slab_dealloc(void* ptr, size_t slab_size)
VERIFY_NOT_REACHED();
}
void slab_alloc_stats(Function<void(size_t slab_size, size_t allocated, size_t free)> callback)
ErrorOr<void> slab_alloc_stats(Function<ErrorOr<void>(size_t slab_size, size_t allocated, size_t free)> callback)
{
for_each_allocator([&](auto& allocator) {
TRY(for_each_allocator([&](auto& allocator) -> ErrorOr<void> {
auto num_allocated = allocator.num_allocated();
auto num_free = allocator.slab_count() - num_allocated;
callback(allocator.slab_size(), num_allocated, num_free);
});
TRY(callback(allocator.slab_size(), num_allocated, num_free));
return {};
}));
return {};
}
}