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keypool: Add comment about TopUp and when to use it

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Andrew Chow 2019-11-20 15:41:20 -05:00
parent ea50e34b28
commit 6e77a7b65c
1 changed files with 4 additions and 0 deletions
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4
src/wallet/scriptpubkeyman.h
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@ -154,6 +154,10 @@ public:
virtual void KeepDestination(int64_t index) {}
virtual void ReturnDestination(int64_t index, bool internal, const CPubKey& pubkey) {}
/** Fills internal address pool. Use within ScriptPubKeyMan implementations should be used sparingly and only
* when something from the address pool is removed, excluding GetNewDestination and GetReservedDestination.
* External wallet code is primarily responsible for topping up prior to fetching new addresses
*/
virtual bool TopUp(unsigned int size = 0) { return false; }
//! Mark unused addresses as being used