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Be much more agressive in AccessCoin docs.

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While the current implementation is pretty free, there is a lot
of possibility for this to blow up in our face with future changes,
especially as the backing map gets tweaked.
This commit is contained in:
Matt Corallo 2017-06-05 20:28:08 -04:00
parent f58349ca85
commit 9417d7a336
1 changed files with 7 additions and 2 deletions
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9
src/coins.h
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@ -222,8 +222,13 @@ public:
/**
* Return a reference to Coin in the cache, or a pruned one if not found. This is
* more efficient than GetCoin. Modifications to other cache entries are
* allowed while accessing the returned pointer.
* more efficient than GetCoin.
*
* Generally, do not hold the reference returned for more than a short scope.
* While the current implementation allows for modifications to the contents
* of the cache while holding the reference, this behavior should not be relied
* on! To be safe, best to not hold the returned reference through any other
* calls to this cache.
*/
const Coin& AccessCoin(const COutPoint &output) const;