Showcase how to call public nlm COM APIs #4
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Can you (in this PR or a follow up) update the "LatestBuild" with this new binary? |
| // typename C is the server object implementing IConnectionPoint to Advise() | ||
| // typename S is the client's sink object (must implement type T) | ||
| template <typename T, typename C, typename S> | ||
| void AdviseInProcObject(_In_ Microsoft::WRL::ComPtr<C> sourceObject, _In_ S* connectionSink) |
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Could all the _In_ Foo* pointers be replaced with references? It avoids the need for SAL annotations and let the compiler enforce the `In requirement.
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I don't have a strong opinion between pointer + SAL vs reference. It seems other project in this solution is using pointer + SAL. I'll keep this as is unless you have strong opinion to choose reference.
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Using references is part of the C++ coding guidelines, and since a sample aims to be used as an example, I think it's valuable to have this code to the best standard.
But the choice is up to you, I won't be annoying about this :)
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Would you mind sharing the guidance you're referring to?
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The Cpp core guideline have the following items (not finding one that explicitly recommends reference over pointers, but the intent is pretty clear: have checks, and have them done at compile time rather that run time.
We also have internal guidelines.
| // typename C is the server object implementing IConnectionPoint to Advise() | ||
| // typename S is the client's sink object (must implement type T) | ||
| template <typename T, typename C, typename S> | ||
| void AdviseInProcObject(_In_ Microsoft::WRL::ComPtr<C> sourceObject, _In_ S* connectionSink) |
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Sal not needed on non-pointer types
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| using namespace Microsoft::WRL; | ||
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| std::wstring ToStringCheckingErrors(const std::wstring& errorString, const std::wstring& dataString) |
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Could be "noexcept" (and constexpr depending on the C++ std version)
| ULONG fetched{0}; | ||
| ComPtr<INetwork> network; | ||
| THROW_IF_FAILED(hr = enumConnectedNetworks->Next(1, network.GetAddressOf(), &fetched)); | ||
| if (hr == S_OK) |
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Why not simply break on S_FALSE instead, and have a "while (true)" loop?
This would make the code simpler (no for loop without increment step, early break) and mostly clarify what success condition other than S_OK is expected there.
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(an alternative, since you use this pattern a lot, could be a "map" function helper that applies a lambda to all the networks in the list)
| SOCKADDR_STORAGE sockAddrStorage{}; | ||
| if (pDestAddr) | ||
| { | ||
| memcpy(&sockAddrStorage, pDestAddr, sizeof(sockAddrStorage) > sizeof(*pDestAddr) ? sizeof(sockAddrStorage) : sizeof(*pDestAddr)); |
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std::max rather than a ternary?
Also, shouldn't it be the min that is needed?
| return returnString.empty() ? std::to_wstring(static_cast<int32_t>(connectivity)) : returnString; | ||
| } | ||
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| inline std::wstring ToString(_In_ VARIANT* variant) |
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Could this be a reference?
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