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wallet: Cache SigningProviders

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In order to avoid constantly re-deriving the same keys in
DescriptorScriptPubKeyMan, cache the SigningProviders generated inside
of GetSigningProvider.
This commit is contained in:
Andrew Chow
2022-03-28 16:47:59 -04:00
parent 8a105ecd1a
commit 1f798fe85b
2 changed files with 16 additions and 3 deletions
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src/wallet/scriptpubkeyman.h
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@@ -547,6 +547,8 @@ private:
KeyMap GetKeys() const EXCLUSIVE_LOCKS_REQUIRED(cs_desc_man);
// Cached FlatSigningProviders to avoid regenerating them each time they are needed.
mutable std::map<int32_t, FlatSigningProvider> m_map_signing_providers;
// Fetch the SigningProvider for the given script and optionally include private keys
std::unique_ptr<FlatSigningProvider> GetSigningProvider(const CScript& script, bool include_private = false) const;
// Fetch the SigningProvider for the given pubkey and always include private keys. This should only be called by signing code.