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Report on-disk size in gettxoutsetinfo

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This commit is contained in:
Pieter Wuille
2017-05-12 15:19:19 -07:00
parent d342424301
commit c3aa0c1194
7 changed files with 35 additions and 1 deletions
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17
src/dbwrapper.h
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@@ -305,7 +305,22 @@ public:
* Return true if the database managed by this class contains no entries.
*/
bool IsEmpty();
template<typename K>
size_t EstimateSize(const K& key_begin, const K& key_end) const
{
CDataStream ssKey1(SER_DISK, CLIENT_VERSION), ssKey2(SER_DISK, CLIENT_VERSION);
ssKey1.reserve(DBWRAPPER_PREALLOC_KEY_SIZE);
ssKey2.reserve(DBWRAPPER_PREALLOC_KEY_SIZE);
ssKey1 << key_begin;
ssKey2 << key_end;
leveldb::Slice slKey1(ssKey1.data(), ssKey1.size());
leveldb::Slice slKey2(ssKey2.data(), ssKey2.size());
uint64_t size = 0;
leveldb::Range range(slKey1, slKey2);
pdb->GetApproximateSizes(&range, 1, &size);
return size;
}
};
#endif // BITCOIN_DBWRAPPER_H