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Buy offer

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This commit is contained in:
jl777
2018-07-20 02:49:38 -11:00
parent 54c7829ef3
commit 24fe52375e
1 changed files with 75 additions and 1 deletions
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76
src/cc/assets.cpp
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@@ -157,6 +157,8 @@ signEncodeTx "$transferTx"
*/
const char *Unspendableaddr = "RHTcNNYXEZhLGRcXspA2H4gw2v4u6w8MNp";
char Unspendablehex[67] = { "020e46e79a2a8d12b9b5d12c7a91adb4e454edfae43c0a0cb805427d2ac7613fd9" };
static uint256 zeroid;
bool Getscriptaddress(char *destaddr,const CScript &scriptPubKey)
@@ -284,7 +286,7 @@ std::string FinalizeAssetTx(CMutableTransaction &mtx,CPubKey pk,uint64_t outvalu
return(SignAssetTx(mtx,utxovalue,scriptPubKey));
}
std::string CreateAsset(std::vector<uint8_t> origpubkey,uint64_t assetsupply,uint256 utxotxid,int32_t utxovout,std::string name,std::string description)
std::string CreateAsset(std::vector<uint8_t> origpubkey,uint256 utxotxid,int32_t utxovout,uint64_t assetsupply,std::string name,std::string description)
{
CMutableTransaction mtx; CPubKey pk; CScript scriptPubKey; uint64_t utxovalue,txfee=10000;
if ( (utxovalue= StartAssetTx(pk,scriptPubKey,assetsupply,txfee,origpubkey,utxotxid,utxovout)) != 0 )
@@ -313,6 +315,78 @@ std::string CreateAssetTransfer(uint256 assetid,std::vector<uint8_t> origpubkey,
return(0);
}
std::string CreateBuyOffer(uint256 assetid,std::vector<uint8_t> origpubkey,uint256 utxotxid,int32_t utxovout,uint64_t bidamount,uint64_t required)
{
CMutableTransaction mtx; CPubKey pk; CScript scriptPubKey; int32_t i,n; uint64_t utxovalue,txfee=10000;
if ( (utxovalue= StartAssetTx(pk,scriptPubKey,0,txfee,origpubkey,utxotxid,utxovout)) != 0 )
{
mtx.vin.push_back(CTxIn(utxotxid,utxovout,CScript()));
mtx.vout.push_back(CTxOut(change,CScript() << ParseHex(Unspendablehex) << OP_CHECKSIG));
return(FinalizeAssetTx(mtx,pk,bidamount,txfee,utxovalue,scriptPubKey,EncodeOpRet('b',assetid,zeroid,required,origpubkey)));
}
return(0);
}
/*
cancelbuy:
vin.0: normal input
vin.1: unspendable.(vout.0 from buyoffer) buyTx.vout[0]
vout.0: vin.1 value to original pubkey buyTx.vout[0].nValue -> [origpubkey]
vout.1: normal output for change (if any)
vout.n-1: opreturn [EVAL_ASSETS] ['o']
fillbuy:
vin.0: normal input
vin.1: unspendable.(vout.0 from buyoffer) buyTx.vout[0]
vin.2: valid CC output satisfies buyoffer (*tx.vin[2])->nValue
vout.0: remaining amount of bid to unspendable
vout.1: vin.1 value to signer of vin.2
vout.2: vin.2 assetoshis to original pubkey
vout.3: normal output for change (if any)
vout.n-1: opreturn [EVAL_ASSETS] ['B'] [assetid] [remaining asset required] [origpubkey]
selloffer:
vin.0: normal input
vin.1: valid CC output for sale
vout.0: vin.1 assetoshis output to CC to unspendable
vout.1: normal output for change (if any)
vout.n-1: opreturn [EVAL_ASSETS] ['s'] [assetid] [amount of native coin required] [origpubkey]
exchange:
vin.0: normal input
vin.1: valid CC output
vout.0: vin.1 assetoshis output to CC to unspendable
vout.1: normal output for change (if any)
vout.n-1: opreturn [EVAL_ASSETS] ['e'] [assetid] [assetid2] [amount of asset2 required] [origpubkey]
cancel:
vin.0: normal input
vin.1: unspendable.(vout.0 from exchange or selloffer) sellTx/exchangeTx.vout[0] inputTx
vout.0: vin.1 assetoshis to original pubkey CC sellTx/exchangeTx.vout[0].nValue -> [origpubkey]
vout.1: normal output for change (if any)
vout.n-1: opreturn [EVAL_ASSETS] ['x'] [assetid]
fillsell:
vin.0: normal input
vin.1: unspendable.(vout.0 assetoshis from selloffer) sellTx.vout[0]
vin.2: normal output that satisfies selloffer (*tx.vin[2])->nValue
vout.0: remaining assetoshis -> unspendable
vout.1: vin.1 assetoshis to signer of vin.2 sellTx.vout[0].nValue -> any
vout.2: vin.2 value to original pubkey [origpubkey]
vout.3: normal output for change (if any)
vout.n-1: opreturn [EVAL_ASSETS] ['S'] [assetid] [amount of coin still required] [origpubkey]
fillexchange:
vin.0: normal input
vin.1: unspendable.(vout.0 assetoshis from exchange) exchangeTx.vout[0]
vin.2: valid CC assetid2 output that satisfies exchange (*tx.vin[2])->nValue
vout.0: remaining assetoshis -> unspendable
vout.1: vin.1 assetoshis to signer of vin.2 exchangeTx.vout[0].nValue -> any
vout.2: vin.2 assetoshis2 to original pubkey [origpubkey]
vout.3: normal output for change (if any)
vout.n-1: opreturn [EVAL_ASSETS] ['E'] [assetid vin0+1] [assetid vin2] [remaining asset2 required] [origpubkey]
*/
uint8_t DecodeOpRet(const CScript &scriptPubKey,uint256 &assetid,uint256 &assetid2,uint64_t &price,std::vector<uint8_t> &origpubkey)
{
std::vector<uint8_t> vopret; uint8_t funcid=0,*script;