diff options
Diffstat (limited to 'src/coins.h')
| -rw-r--r-- | src/coins.h | 29 |
1 files changed, 1 insertions, 28 deletions
diff --git a/src/coins.h b/src/coins.h index a3e241ac90..d2eb42d8cf 100644 --- a/src/coins.h +++ b/src/coins.h @@ -8,11 +8,11 @@ #include <compressor.h> #include <core_memusage.h> -#include <crypto/siphash.h> #include <memusage.h> #include <primitives/transaction.h> #include <serialize.h> #include <uint256.h> +#include <util/hasher.h> #include <assert.h> #include <stdint.h> @@ -82,33 +82,6 @@ public: } }; -class SaltedOutpointHasher -{ -private: - /** Salt */ - const uint64_t k0, k1; - -public: - SaltedOutpointHasher(); - - /** - * This *must* return size_t. With Boost 1.46 on 32-bit systems the - * unordered_map will behave unpredictably if the custom hasher returns a - * uint64_t, resulting in failures when syncing the chain (#4634). - * - * Having the hash noexcept allows libstdc++'s unordered_map to recalculate - * the hash during rehash, so it does not have to cache the value. This - * reduces node's memory by sizeof(size_t). The required recalculation has - * a slight performance penalty (around 1.6%), but this is compensated by - * memory savings of about 9% which allow for a larger dbcache setting. - * - * @see https://gcc.gnu.org/onlinedocs/gcc-9.2.0/libstdc++/manual/manual/unordered_associative.html - */ - size_t operator()(const COutPoint& id) const noexcept { - return SipHashUint256Extra(k0, k1, id.hash, id.n); - } -}; - /** * A Coin in one level of the coins database caching hierarchy. * |