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ipc_helpers: Only allow trivially copyable objects with PushRaw() and PopRaw()
It's undefined behavior to use non-trivially copyable objects with std::memcpy, so we can add asserts to catch usages of these at compile-time.
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1 changed files with 4 additions and 0 deletions
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@ -229,6 +229,8 @@ inline void ResponseBuilder::Push(u32 value) {
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template <typename T>
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void ResponseBuilder::PushRaw(const T& value) {
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static_assert(std::is_trivially_copyable_v<T>,
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"It's undefined behavior to use memcpy with non-trivially copyable objects");
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std::memcpy(cmdbuf + index, &value, sizeof(T));
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index += (sizeof(T) + 3) / 4; // round up to word length
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}
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@ -384,6 +386,8 @@ inline s32 RequestParser::Pop() {
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template <typename T>
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void RequestParser::PopRaw(T& value) {
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static_assert(std::is_trivially_copyable_v<T>,
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"It's undefined behavior to use memcpy with non-trivially copyable objects");
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std::memcpy(&value, cmdbuf + index, sizeof(T));
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index += (sizeof(T) + 3) / 4; // round up to word length
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}
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