CCoinsMap::iterator CCoinsViewCache::FetchCoins(const uint256 &txid) {
CCoinsMap::iterator it = cacheCoins.find(txid);
if (it != cacheCoins.end())
return it;
CCoins tmp;
if (!base->GetCoins(txid,tmp))
return cacheCoins.end();
CCoinsMap::iterator ret = cacheCoins.insert(it, std::make_pair(txid, CCoins()));
tmp.swap(ret->second);
return ret;
}
/**
* Construct a dummy tx that provides the given script as input
* for further tests in the given CCoinsView. The txid is returned
* to refer to it. The "index" is always 0. The output's
* value is always set to 1000 COIN, since it doesn't matter for
* the tests we are interested in.
* @param scr The script that should be provided as output.
* @param nHeight The height of the coin.
* @param view Add it to this view.
* @return The txid.
*/
static uint256
addTestCoin (const CScript& scr, unsigned nHeight, CCoinsViewCache& view)
{
CMutableTransaction mtx;
mtx.vout.push_back (CTxOut (1000 * COIN, scr));
const CTransaction tx(mtx);
CCoinsModifier entry = view.ModifyCoins (tx.GetHash ());
*entry = CCoins (tx, nHeight);
return tx.GetHash ();
}
std::map<uint256,CCoins>::iterator CCoinsViewCache::FetchCoins(const uint256 &txid) {
std::map<uint256,CCoins>::iterator it = cacheCoins.lower_bound(txid);
if (it != cacheCoins.end() && it->first == txid)
return it;
CCoins tmp;
if (!base->GetCoins(txid,tmp))
return cacheCoins.end();
std::map<uint256,CCoins>::iterator ret = cacheCoins.insert(it, std::make_pair(txid, CCoins()));
tmp.swap(ret->second);
return ret;
}