quiche: implement SimpleLinkedHashMap platform APIs #6782
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| #pragma once | ||
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| // NOLINT(namespace-envoy) | ||
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| // This file is part of the QUICHE platform implementation, and is not to be | ||
| // consumed or referenced directly by other Envoy code. It serves purely as a | ||
| // porting layer for QUICHE. | ||
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| #include "extensions/quic_listeners/quiche/platform/quic_logging_impl.h" |
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| #pragma once | ||
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| // NOLINT(namespace-envoy) | ||
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| // This file is part of the QUICHE platform implementation, and is not to be | ||
| // consumed or referenced directly by other Envoy code. It serves purely as a | ||
| // porting layer for QUICHE. | ||
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| #include <memory> | ||
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| namespace quiche { | ||
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| template <typename T, typename... Args> std::unique_ptr<T> QuicheMakeUniqueImpl(Args&&... args) { | ||
| return std::make_unique<T>(std::forward<Args>(args)...); | ||
| } | ||
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| } // namespace quiche |
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| Original file line number | Diff line number | Diff line change |
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| #pragma once | ||
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| // NOLINT(namespace-envoy) | ||
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| // This file is part of the QUICHE platform implementation, and is not to be | ||
| // consumed or referenced directly by other Envoy code. It serves purely as a | ||
| // porting layer for QUICHE. | ||
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| #include "absl/container/node_hash_map.h" | ||
| #include "absl/hash/hash.h" | ||
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| namespace quiche { | ||
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| // The default hasher used by hash tables. | ||
| template <typename Key> using QuicheDefaultHasherImpl = absl::Hash<Key>; | ||
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| // Similar to std::unordered_map, but with better performance and memory usage. | ||
| template <typename Key, typename Value, typename Hash> | ||
| using QuicheUnorderedMapImpl = absl::node_hash_map<Key, Value, Hash>; | ||
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Contributor
There was a problem hiding this comment. Is there a particular reason to use absl::node_hash_map instead of absl::flat_hash_map?
Contributor
Author
There was a problem hiding this comment. flat_hash_map doesn't support key stability. Since this impl will probably replace QuicUnorderedMap which is used in several places as replacement of std::unordered_map. It will take some extra effort to investigate if those places requires key stability or not to switch to absl::flat_hash_map. And as we use node_hash_map in upstream, it's better to use the same class here to make sure future upstream change can be smoothly imported.
Contributor
There was a problem hiding this comment. SGTM. In the long term we should probably rename it to QuicheNodeHashMap and add a QuicheFlatHashMap, or directly use the absl ones if that's allowed. |
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| } // namespace quiche | ||
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| Original file line number | Diff line number | Diff line change |
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@@ -10,6 +10,3 @@ | |
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| #define SPDY_MUST_USE_RESULT_IMPL ABSL_MUST_USE_RESULT | ||
| #define SPDY_UNUSED_IMPL ABSL_ATTRIBUTE_UNUSED | ||
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nit: I'd prefer "quiche_platform", for similarity with (quic|spdy|http2)_platform.
Your call. (If you do change it to quiche_platform, please also change quiche_common_platform_test to quiche_platform_test, and quiche_common_platform_impl_lib to quiche_platform_impl_lib)
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My concern is that if there are other directory added under quiche in the future, it will be hard to name those without specifying "common" here.
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SGTM!