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Merkleroot cache

etomic
jl777 7 years ago
parent
d3fed6994f
commit
7ac36c88ce
2 changed files with 32 additions and 13 deletions
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  1. 1
      iguana/exchanges/LP_include.h
  2. 44
      iguana/exchanges/LP_utxo.c

1
iguana/exchanges/LP_include.h
View File

@ -231,6 +231,7 @@ struct iguana_info
uint64_t maxamount,kmd_equiv,balanceA,balanceB,valuesumA,valuesumB;
uint8_t pubkey33[33],zcash;
bits256 cachedtxid; uint8_t *cachedtxiddata; int32_t cachedtxidlen;
bits256 cachedmerkle; int32_t cachedmerkleheight;
};
struct _LP_utxoinfo { bits256 txid; uint64_t value; int32_t vout,height; };

44
iguana/exchanges/LP_utxo.c
View File

@ -362,9 +362,31 @@ bits256 validate_merkle(int32_t pos,bits256 txid,cJSON *proofarray,int32_t proof
return(hash);
}
bits256 LP_merkleroot(struct iguana_info *coin,struct electrum_info *ep,int32_t height)
{
cJSON *hdrobj; bits256 merkleroot;
memset(merkleroot.bytes,0,sizeof(merkleroot));
if ( coin->cachedmerkleheight == height )
return(coin->cachedmerkle);
if ( (hdrobj= electrum_getheader(coin->symbol,ep,&hdrobj,height)) != 0 )
{
if ( jobj(hdrobj,"merkle_root") != 0 )
{
merkleroot = jbits256(hdrobj,"merkle_root");
if ( bits256_nonz(merkleroot) != 0 )
{
coin->cachedmerkle = merkleroot;
coin->cachedmerkleheight = height;
}
}
free_json(hdrobj);
} else printf("couldnt get header for ht.%d\n",height);
return(merkleroot);
}
int32_t LP_merkleproof(struct iguana_info *coin,struct electrum_info *ep,bits256 txid,int32_t height)
{
cJSON *merkobj,*merkles,*hdrobj; bits256 roothash,merkleroot; int32_t m,SPV = 0;
cJSON *merkobj,*merkles; bits256 roothash,merkleroot; int32_t m,SPV = 0;
if ( (merkobj= electrum_getmerkle(coin->symbol,ep,&merkobj,txid,height)) != 0 )
{
char str[65],str2[65],str3[65];
@ -373,20 +395,16 @@ int32_t LP_merkleproof(struct iguana_info *coin,struct electrum_info *ep,bits256
if ( (merkles= jarray(&m,merkobj,"merkle")) != 0 )
{
roothash = validate_merkle(jint(merkobj,"pos"),txid,merkles,m);
if ( (hdrobj= electrum_getheader(coin->symbol,ep,&hdrobj,height)) != 0 )
merkleroot = LP_merkleroot(coin,ep,height);
if ( bits256_nonz(merkleroot) != 0 )
{
if ( jobj(hdrobj,"merkle_root") != 0 )
if ( bits256_cmp(merkleroot,roothash) == 0 )
{
merkleroot = jbits256(hdrobj,"merkle_root");
if ( bits256_cmp(merkleroot,roothash) == 0 )
{
SPV = height;
//printf("validated MERK %s ht.%d -> %s root.(%s)\n",bits256_str(str,up->U.txid),up->U.height,jprint(merkobj,0),bits256_str(str2,roothash));
}
else printf("ERROR MERK %s ht.%d -> %s root.(%s) vs %s (%s)\n",bits256_str(str,txid),height,jprint(merkobj,0),bits256_str(str2,roothash),bits256_str(str3,merkleroot),jprint(hdrobj,0));
} else SPV = 0;
free_json(hdrobj);
} else printf("couldnt get header for ht.%d\n",height);
SPV = height;
//printf("validated MERK %s ht.%d -> %s root.(%s)\n",bits256_str(str,up->U.txid),up->U.height,jprint(merkobj,0),bits256_str(str2,roothash));
}
else printf("ERROR MERK %s ht.%d -> %s root.(%s) vs %s\n",bits256_str(str,txid),height,jprint(merkobj,0),bits256_str(str2,roothash),bits256_str(str3,merkleroot));
} else SPV = 0;
}
if ( SPV < 0 )
{

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