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LibIPC: Decode Vector<T> in one swoop for trivial arithmetic types

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This avoids having the CPU churn through the vector one little integer
at a time.
This commit is contained in:
Andreas Kling 2025-12-01 11:52:44 +01:00 • committed by Jelle Raaijmakers
parent 4d7d8aa827
commit 94fc8c47c0
Notes: github-actions[bot] 2025-12-01 14:14:06 +00:00
1 changed files with 13 additions and 0 deletions
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13
Libraries/LibIPC/Decoder.h
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@ -149,6 +149,7 @@ ErrorOr<T> decode(Decoder& decoder)
}
template<Concepts::Vector T>
requires(!IsArithmetic<typename T::ValueType>)
ErrorOr<T> decode(Decoder& decoder)
{
T vector;
@ -164,6 +165,18 @@ ErrorOr<T> decode(Decoder& decoder)
return vector;
}
template<Concepts::Vector T>
requires(IsArithmetic<typename T::ValueType>)
ErrorOr<T> decode(Decoder& decoder)
{
T vector;
auto size = TRY(decoder.decode_size());
VERIFY(!Checked<size_t>::multiplication_would_overflow(size, sizeof(typename T::ValueType)));
vector.resize(size);
TRY(decoder.decode_into({ reinterpret_cast<u8*>(vector.data()), size * sizeof(typename T::ValueType) }));
return vector;
}
template<Concepts::HashMap T>
ErrorOr<T> decode(Decoder& decoder)
{