DragonX/dragonx
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Fix rewards unlock

Browse Source
This commit is contained in:
jl777
2018-07-27 23:07:06 -11:00
parent 98d151dd1d
commit d5dae053ea
2 changed files with 60 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/cc/CCcustom.cpp
View File

@@ -36,6 +36,12 @@
4. make helper functions to create rawtx for RPC functions
5. add rpc calls to rpcserver.cpp and rpcserver.h and in one of the rpc.cpp files
6. add the new .cpp files to src/Makefile.am
IMPORTANT: make sure that all CC inputs and CC outputs are properly accounted for and reconcile to the satoshi. The built in utxo management will enforce overall vin/vout constraints but it wont know anything about the CC constraints. That is what your Validate function needs to do.
Generally speaking, there will be normal coins that change into CC outputs, CC outputs that go back to being normal coins, CC outputs that are spent to new CC outputs.
Make sure both the CC coins and normal coins are preserved and follow the rules that make sense. It is a good idea to define specific roles for specific vins and vouts to reduce the complexity of validation.
*/
//BTCD Address: RAssetsAtGnvwgK9gVHBbAU4sVTah1hAm5

66
src/cc/rewards.cpp
View File

@@ -35,6 +35,35 @@
Locks wont have any CC vins, but will send to the RewardsCCaddress, with the plan stringbits in the opreturn. vout1 will have the unlock address and no other destination is valid.
Unlock does a CC spend to the vout1 address
createfunding
vins.*: normal inputs
vout.0: CC vout for funding
vout.1: normal marker vout for easy searching
vout.2: normal change
vout.n-1: opreturn 'F' sbits APR minseconds maxseconds mindeposit
addfunding
vins.*: normal inputs
vout.0: CC vout for funding
vout.1: normal change
vout.n-1: opreturn 'A' sbits fundingtxid
lock
vins.*: normal inputs
vout.0: CC vout for locked funds
vout.1: normal output to unlock address
vout.2: change
vout.n-1: opreturn 'L' sbits fundingtxid
unlock
vin.0: locked funds CC vout.0 from lock
vin.1+: funding CC vout.0 from 'F' and 'A' and 'U'
vout.0: funding CC change
vout.1: normal output to unlock address
vout.n-1: opreturn 'U' sbits fundingtxid
*/
uint64_t RewardsCalc(uint64_t amount,uint256 txid,uint64_t APR,uint64_t minseconds,uint64_t maxseconds,uint64_t mindeposit)
@@ -172,7 +201,7 @@ bool RewardsValidate(struct CCcontract_info *cp,Eval* eval,const CTransaction &t
}
// 'L' vs 'F' and 'A'
uint64_t AddRewardsInputs(int32_t fundsflag,struct CCcontract_info *cp,CMutableTransaction &mtx,CPubKey pk,uint64_t total,int32_t maxinputs)
uint64_t AddRewardsInputs(CScript &scriptPubKey,int32_t fundsflag,struct CCcontract_info *cp,CMutableTransaction &mtx,CPubKey pk,uint64_t total,int32_t maxinputs)
{
char coinaddr[64]; uint64_t sbits,APR,minseconds,maxseconds,mindeposit,nValue,totalinputs = 0; uint256 txid,hashBlock,fundingtxid; CTransaction tx; int32_t j,vout,n = 0; uint8_t funcid;
std::vector<std::pair<CAddressUnspentKey, CAddressUnspentValue> > unspentOutputs;
@@ -191,12 +220,16 @@ uint64_t AddRewardsInputs(int32_t fundsflag,struct CCcontract_info *cp,CMutableT
{
if ( (funcid= DecodeRewardsFundingOpRet(tx.vout[tx.vout.size()-1].scriptPubKey,sbits,APR,minseconds,maxseconds,mindeposit)) == 'F' || (funcid= DecodeRewardsOpRet(tx.vout[tx.vout.size()-1].scriptPubKey,sbits,fundingtxid)) != 0 )
{
if ( fundsflag != 0 && funcid != 'F' && funcid != 'A' )
if ( fundsflag != 0 && funcid != 'F' && funcid != 'A' && funcid != 'U' )
continue;
else if ( fundsflag == 0 && (funcid != 'L' || tx.vout.size() < 4) )
continue;
if ( total != 0 && maxinputs != 0 )
{
if ( fundsflag == 0 )
scriptPubKey = tx.vout[1].scriptPubKey;
mtx.vin.push_back(CTxIn(txid,vout,CScript()));
}
totalinputs += it->second.satoshis;
n++;
if ( (total > 0 && totalinputs >= total) || (maxinputs > 0 && n >= maxinputs) )
@@ -404,7 +437,7 @@ std::string RewardsLock(uint64_t txfee,char *planstr,uint256 fundingtxid,int64_t
std::string RewardsUnlock(uint64_t txfee,char *planstr,uint256 fundingtxid,uint256 locktxid)
{
CMutableTransaction mtx; char coinaddr[64]; CPubKey mypk,rewardspk; CScript opret; uint64_t funding,sbits,reward=0,amount=0,inputs,CCchange=0,APR,minseconds,maxseconds,mindeposit; struct CCcontract_info *cp,C;
CMutableTransaction mtx; CTransaction tx; char coinaddr[64]; CPubKey mypk,rewardspk; CScript opret,scriptPubKey,ignore; uint256 hashBlock; uint64_t funding,sbits,reward=0,amount=0,inputs,CCchange=0,APR,minseconds,maxseconds,mindeposit; struct CCcontract_info *cp,C;
cp = CCinit(&C,EVAL_REWARDS);
if ( txfee == 0 )
txfee = 10000;
@@ -418,7 +451,7 @@ std::string RewardsUnlock(uint64_t txfee,char *planstr,uint256 fundingtxid,uint2
}
// need to deal with finding the right utxos
if ( locktxid == zeroid )
amount = AddRewardsInputs(0,cp,mtx,rewardspk,(1LL << 30),1);
amount = AddRewardsInputs(scriptPubkey,0,cp,mtx,rewardspk,(1LL << 30),1);
else
{
GetCCaddress(cp,coinaddr,rewardspk);
@@ -427,17 +460,26 @@ std::string RewardsUnlock(uint64_t txfee,char *planstr,uint256 fundingtxid,uint2
fprintf(stderr,"%s locktxid/v0 is spent\n",coinaddr);
return(0);
}
mtx.vin.push_back(CTxIn(locktxid,0,CScript()));
}
if ( amount > 0 && (reward= RewardsCalc(amount,mtx.vin[0].prevout.hash,APR,minseconds,maxseconds,mindeposit)) > txfee )
{
if ( (inputs= AddRewardsInputs(1,cp,mtx,rewardspk,reward+amount+txfee,30)) > 0 )
if ( GetTransaction(locktxid,tx,hashBlock,false) != 0 && tx.vout.size() > 0 && tx.vout[1].scriptPubKey.IsPayToCryptoCondition() == 0 )
{
if ( inputs >= (amount + reward + 2*txfee) )
CCchange = (inputs - (amount + reward + txfee));
scriptPubkey = tx.vout[1].scriptPubKey;
mtx.vin.push_back(CTxIn(locktxid,0,CScript()));
}
else
{
fprintf(stderr,"%s no normal vout.1 in locktxid\n",coinaddr);
return(0);
}
}
if ( amount > 0 && (reward= RewardsCalc(amount,mtx.vin[0].prevout.hash,APR,minseconds,maxseconds,mindeposit)) > txfee && scriptPubKey.size() > 0 )
{
if ( (inputs= AddRewardsInputs(ignore,1,cp,mtx,rewardspk,reward+amount+txfee,30)) > 0 )
{
if ( inputs >= (reward + 2*txfee) )
CCchange = (inputs - (reward + txfee));
fprintf(stderr,"inputs %.8f CCchange %.8f amount %.8f reward %.8f\n",(double)inputs/COIN,(double)CCchange/COIN,(double)amount/COIN,(double)reward/COIN);
mtx.vout.push_back(MakeCC1vout(cp->evalcode,CCchange,rewardspk));
mtx.vout.push_back(CTxOut(amount+reward,CScript() << ParseHex(HexStr(mypk)) << OP_CHECKSIG));
mtx.vout.push_back(CTxOut(amount+reward,scriptPubKey));
return(FinalizeCCTx(-1LL,cp,mtx,mypk,txfee,EncodeRewardsOpRet('U',sbits,fundingtxid)));
}
fprintf(stderr,"cant find enough rewards inputs\n");