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SuperNET/basilisk/tradebots_liquidity.c

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/******************************************************************************
* Copyright © 2014-2018 The SuperNET Developers. *
* *
* See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at *
* the top-level directory of this distribution for the individual copyright *
* holder information and the developer policies on copyright and licensing. *
* *
* Unless otherwise agreed in a custom licensing agreement, no part of the *
* SuperNET software, including this file may be copied, modified, propagated *
* or distributed except according to the terms contained in the LICENSE file *
* *
* Removal or modification of this copyright notice is prohibited. *
* *
******************************************************************************/
// included from basilisk.c
/*
In order to provide liquidity from central exchanges, we need to issue balancing trades, however to do this properly, we need to know what the desired balance is. If unspecified, then a neutral balance is assumed.
The liquidity_info interface is quite flexible, there is a single function liquidity_active() which returns non-zero if the LP node should respond. The model is that the liquidity_command() is used to configure the liquidity_active()'s response.
In order for dynamic adaptiveness to work, the liquidity_command/liquidity_active needs to interact with the balancing.
A simplistic default trio of functions are provided, but any level of complexity is possible with the liquidity interface.
*/
#define TRADEBOTS_NUMANSWERS 8
#define TRADEBOTS_NUMDECAYS 8
#define TRADEBOTS_RAWFEATURESINCR 7
#define TRADEBOTS_MAXPAIRS 1024
#define _OCAS_PLUS_INF (-log(0.0))
double OCAS_PLUS_INF,OCAS_NEG_INF;
double Tradebots_decays[TRADEBOTS_NUMDECAYS] = { 0.5, 0.666, 0.8, 0.9, 0.95, 0.99, 0.995, 0.999 };
int32_t Tradebots_answergaps[TRADEBOTS_NUMANSWERS] = { 60, 60, 120, 120, 240, 240, 720, 720 };
struct tradebot_arbentry
{
char exchange[16];
double price,volume,profitmargin;
uint32_t timestamp;
};
struct tradebot_arbexchange
{
char name[16];
struct tradebot_arbentry trades[2];
};
struct tradebot_arbpair
{
char base[32],rel[32];
uint32_t lasttime,lastanswertime; FILE *fp;
int32_t numexchanges,counter,btccounter,usdcounter,cnycounter,refc;
double highbid,lowask,hblavolume,btcbid,btcask,btcvol,usdbid,usdask,usdvol,cnybid,cnyask,cnyvol;
double bidaves[TRADEBOTS_NUMDECAYS],askaves[TRADEBOTS_NUMDECAYS];
double bidslopes[TRADEBOTS_NUMDECAYS],askslopes[TRADEBOTS_NUMDECAYS];
struct tradebot_arbexchange exchanges[16];
uint8_t dirmasks[2],slopedirs[2];
char *svmpairs[TRADEBOTS_MAXPAIRS][2];
int32_t RTgood[TRADEBOTS_NUMANSWERS],RTbad[TRADEBOTS_NUMANSWERS],numrawfeatures,numsvmfeatures,numpairs;
float rawfeatures[TRADEBOTS_NUMANSWERS+64],prevrawfeatures[60 * TRADEBOTS_NUMANSWERS+64],*svms; // svms is coeffs vector[TRADEBOTS_NUMANSWERS]
float RTpreds[TRADEBOTS_NUMANSWERS],svmpreds[TRADEBOTS_NUMANSWERS],answers[TRADEBOTS_NUMANSWERS];
};
struct tradebot_arbpair Arbpairs[TRADEBOTS_MAXPAIRS],*Pair_NXTBTC,*Pair_BTCUSD,*Pair_BTCCNY;
int32_t Tradebot_numarbpairs;
struct tradebot_arbpair *tradebots_arbpair_find(char *base,char *rel)
{
int32_t i;
for (i=0; i<Tradebot_numarbpairs; i++)
if ( strcmp(Arbpairs[i].base,base) == 0 && strcmp(Arbpairs[i].rel,rel) == 0 )
return(&Arbpairs[i]);
return(0);
}
int32_t tradebots_calcrawfeatures(struct tradebot_arbpair *pair)
{
int32_t starti,i,n = 0; double ave; uint32_t timestamp;
n = TRADEBOTS_NUMANSWERS;
for (i=59; i>0; i--)
memcpy(&pair->prevrawfeatures[i*72],&pair->prevrawfeatures[(i-1)*72],sizeof(pair->rawfeatures));
memcpy(pair->prevrawfeatures,pair->rawfeatures,sizeof(pair->rawfeatures));
memset(pair->rawfeatures,0,sizeof(pair->rawfeatures));
if ( fabs(pair->highbid) < SMALLVAL || fabs(pair->lowask) < SMALLVAL )
return(-1);
ave = _pairaved(pair->highbid,pair->lowask);
timestamp = (uint32_t)time(NULL);
n = TRADEBOTS_NUMANSWERS;
memcpy(&pair->rawfeatures[TRADEBOTS_NUMANSWERS],&timestamp,sizeof(*pair->rawfeatures)), n++;
pair->rawfeatures[n++] = pair->highbid;
pair->rawfeatures[n++] = pair->lowask;
pair->rawfeatures[n++] = pair->hblavolume / ave;
n = TRADEBOTS_RAWFEATURESINCR + TRADEBOTS_NUMANSWERS;
for (i=0; i<TRADEBOTS_NUMDECAYS; i++)
{
if ( fabs(pair->bidaves[i]) < SMALLVAL || fabs(pair->askaves[i]) < SMALLVAL )
return(-1);
starti = n;
pair->rawfeatures[n++] = (pair->bidaves[i] / ave) - 1.;
pair->rawfeatures[n++] = (pair->askaves[i] / ave) - 1.;
pair->rawfeatures[n++] = 10000. * (pair->bidslopes[i] / ave);
pair->rawfeatures[n++] = 10000. * (pair->askslopes[i] / ave);
if ( n < starti+TRADEBOTS_RAWFEATURESINCR )
n = starti+TRADEBOTS_RAWFEATURESINCR;
}
if ( pair->fp != 0 )
{
if ( fwrite(pair->rawfeatures,1,sizeof(pair->rawfeatures),pair->fp) != sizeof(pair->rawfeatures) )
printf("fwrite error for %s/%s rawfeatures[%d]\n",pair->base,pair->rel,n);
else fflush(pair->fp);
}
if ( n > sizeof(pair->rawfeatures)/sizeof(*pair->rawfeatures) )
{
printf("n.%d too many for rawfeatures %d\n",n,(int32_t)(sizeof(pair->rawfeatures)/sizeof(*pair->rawfeatures)));
exit(-1);
}
return(n);
}
uint32_t tradebots_featureset(double *highbidp,double *lowaskp,double *avep,double *volp,double *bidaves,double *askaves,double *bidslopes,double *askslopes,float *rawfeatures)
{
uint32_t timestamp; int32_t i,n,starti;
memcpy(&timestamp,&rawfeatures[TRADEBOTS_NUMANSWERS],sizeof(timestamp));
n = TRADEBOTS_NUMANSWERS + 1;
*highbidp = rawfeatures[n++];
*lowaskp = rawfeatures[n++];
*avep = _pairaved(*highbidp,*lowaskp);
*volp = rawfeatures[n++];
//printf("[%9.6f %9.6f] vol %f t.%u\n",*highbidp,*lowaskp,*volp,timestamp);
n = TRADEBOTS_RAWFEATURESINCR + TRADEBOTS_NUMANSWERS;
for (i=0; i<TRADEBOTS_NUMDECAYS; i++)
{
starti = n;
bidaves[i] = rawfeatures[n++];
askaves[i] = rawfeatures[n++];
bidslopes[i] = rawfeatures[n++];
askslopes[i] = rawfeatures[n++];
if ( n < starti+TRADEBOTS_RAWFEATURESINCR )
n = starti+TRADEBOTS_RAWFEATURESINCR;
}
return(timestamp);
}
struct tradebot_arbpair *tradebots_arbpair_create(char *base,char *rel)
{
struct tradebot_arbpair *pair; char fname[1024]; double ave;
if ( Tradebot_numarbpairs < sizeof(Arbpairs)/sizeof(*Arbpairs) )
{
printf("new pair.%d (%s/%s)\n",Tradebot_numarbpairs,base,rel);
pair = &Arbpairs[Tradebot_numarbpairs];
pair->refc = Tradebot_numarbpairs++;
strcpy(pair->rel,rel);
strcpy(pair->base,base);
if ( strcmp(base,"NXT") == 0 && strcmp(rel,"BTC") == 0 )
Pair_NXTBTC = pair, printf("Pair_NXTBTC <- %p\n",pair);
else if ( strcmp(base,"BTC") == 0 && strcmp(rel,"USD") == 0 )
Pair_BTCUSD = pair;
else if ( strcmp(base,"BTC") == 0 && strcmp(rel,"CNY") == 0 )
Pair_BTCCNY = pair;
sprintf(fname,"SVM/rawfeatures/%s_%s",base,rel);
pair->fp = OS_appendfile(fname);
if ( (ftell(pair->fp) % sizeof(pair->rawfeatures)) != 0 )
{
printf("misalinged rawfeatures %d %d\n",(uint32_t)ftell(pair->fp),(uint32_t)(ftell(pair->fp) % sizeof(pair->rawfeatures)));
}
fseek(pair->fp,(ftell(pair->fp) / sizeof(pair->rawfeatures)) * sizeof(pair->rawfeatures) - sizeof(pair->rawfeatures),SEEK_SET);
if ( fread(pair->rawfeatures,1,sizeof(pair->rawfeatures),pair->fp) == sizeof(pair->rawfeatures) )
{
pair->lasttime = tradebots_featureset(&pair->highbid,&pair->lowask,&ave,&pair->hblavolume,pair->bidaves,pair->askaves,pair->bidslopes,pair->askslopes,pair->rawfeatures);
printf("%s/%s [%.8f %.8f] %u\n",pair->base,pair->rel,pair->highbid,pair->lowask,pair->lasttime);
}
return(pair);
} else return(0);
}
int32_t tradebots_expandrawfeatures(double *svmfeatures,float *rawfeatures,uint32_t reftimestamp,float *refrawfeatures)
{
double factor,highbid,lowask,ave,vol,bidaves[TRADEBOTS_NUMDECAYS],askaves[TRADEBOTS_NUMDECAYS],bidslopes[TRADEBOTS_NUMDECAYS],askslopes[TRADEBOTS_NUMDECAYS];
double refhighbid,reflowask,refave,refvol,refbidaves[TRADEBOTS_NUMDECAYS],refaskaves[TRADEBOTS_NUMDECAYS],refbidslopes[TRADEBOTS_NUMDECAYS],refaskslopes[TRADEBOTS_NUMDECAYS];
uint32_t timestamp; int32_t i,j,starti,n = 0;
tradebots_featureset(&refhighbid,&reflowask,&refave,&refvol,refbidaves,refaskaves,refbidslopes,refaskslopes,refrawfeatures);
timestamp = tradebots_featureset(&highbid,&lowask,&ave,&vol,bidaves,askaves,bidslopes,askslopes,rawfeatures);
if ( timestamp == 0 || reftimestamp == 0 || timestamp >= reftimestamp+60 )
{
//printf("tradebots_expandrawfeatures: timestamp.%u vs reftimestamp.%u\n",timestamp,reftimestamp);
return(-1);
}
factor = sqrt(reftimestamp - timestamp);
if ( factor > 60. )
factor = 60.;
else if ( factor < 1. )
factor = 1.;
factor = 1. / factor;
if ( refhighbid == 0. || highbid == 0. || lowask == 0. || reflowask == 0. )
{
//printf("tradebots_expandrawfeatures: (%f %f) ref (%f %f)\n",highbid,lowask,refhighbid,reflowask);
return(-1);
}
svmfeatures[n++] = highbid;
svmfeatures[n++] = (highbid / ave) - 1.;
svmfeatures[n++] = lowask;
svmfeatures[n++] = (lowask / ave) - 1.;
svmfeatures[n++] = (lowask - highbid);
svmfeatures[n++] = (lowask - highbid) / ave;
svmfeatures[n++] = vol;
starti = n;
svmfeatures[n++] = refhighbid;
svmfeatures[n++] = (refhighbid / refave) - 1.;
svmfeatures[n++] = reflowask;
svmfeatures[n++] = (reflowask / refave) - 1.;
svmfeatures[n++] = (reflowask - refhighbid);
svmfeatures[n++] = (reflowask - refhighbid) / refave;
svmfeatures[n++] = refvol;
for (i=0; i<starti; i++)
svmfeatures[n++] = (svmfeatures[i] - svmfeatures[i+starti]);
for (i=0; i<TRADEBOTS_NUMDECAYS; i++)
{
svmfeatures[n++] = bidaves[i];
svmfeatures[n++] = askaves[i];
svmfeatures[n++] = bidslopes[i];
svmfeatures[n++] = askslopes[i];
svmfeatures[n++] = bidaves[i] - refbidaves[i];
svmfeatures[n++] = bidaves[i] - refaskaves[i];
svmfeatures[n++] = (askaves[i] - bidaves[i]);
svmfeatures[n++] = askaves[i] - refaskaves[i];
svmfeatures[n++] = askaves[i] - refbidaves[i];
svmfeatures[n++] = bidslopes[i] - refbidslopes[i];
svmfeatures[n++] = bidslopes[i] - refaskslopes[i];
svmfeatures[n++] = (askslopes[i] - bidslopes[i]);
svmfeatures[n++] = askslopes[i] - refaskslopes[i];
svmfeatures[n++] = askslopes[i] - refbidslopes[i];
svmfeatures[n++] = (askaves[i] - bidaves[i]) - (refaskaves[i] - refbidaves[i]);
svmfeatures[n++] = (askslopes[i] - bidslopes[i]) - (refaskslopes[i] - refbidslopes[i]);
for (j=i+1; j<TRADEBOTS_NUMDECAYS; j++)
{
svmfeatures[n++] = (bidaves[i] - bidaves[j]);
svmfeatures[n++] = (askaves[i] - askaves[j]);
svmfeatures[n++] = (askaves[i] - bidaves[j]);
svmfeatures[n++] = (bidslopes[i] - bidslopes[j]);
svmfeatures[n++] = (askslopes[i] - askslopes[j]);
svmfeatures[n++] = (askslopes[i] - bidslopes[j]);
}
}
//if ( fabs(factor - 1.) > SMALLVAL )
{
for (i=starti; i<n; i++)
if ( svmfeatures[i] != 0.f )
{
//svmfeatures[i] *= factor;
if ( svmfeatures[i] > 0. )
svmfeatures[i] = cbrt(svmfeatures[i]);
else svmfeatures[i] = -cbrt(-svmfeatures[i]);
}
}
return(n);
}
int32_t tradebots_calcsvmfeatures(double *svmfeatures,struct tradebot_arbpair *pair,float *rawfeatures,float *prevrawfeatures)
{
int32_t i,j,n,numpairfeatures,flag; struct tradebot_arbpair *ptr; uint32_t reftimestamp;
memcpy(&reftimestamp,&rawfeatures[TRADEBOTS_NUMANSWERS],sizeof(reftimestamp));
if ( reftimestamp == 0 )
{
printf("reftimestamp.%u is illegal\n",reftimestamp);
return(-1);
}
numpairfeatures = n = tradebots_expandrawfeatures(svmfeatures,prevrawfeatures,reftimestamp,rawfeatures);
if ( n <= 0 )
return(-1);
for (i=0; i<60; i++,n+=numpairfeatures)
tradebots_expandrawfeatures(&svmfeatures[n],&prevrawfeatures[i*72],reftimestamp,rawfeatures);
if ( 0 && pair->numsvmfeatures != (1+pair->numpairs)*n )
{
for (i=0; i<pair->numpairs; i++) // need to do lookups
{
flag = -1;
if ( (ptr= tradebots_arbpair_find(pair->svmpairs[i][0],pair->svmpairs[i][1])) != 0 )
flag = tradebots_expandrawfeatures(&svmfeatures[n],ptr->rawfeatures,reftimestamp,rawfeatures);
if ( flag < 0 )
{
for (j=0; j<numpairfeatures; j++)
svmfeatures[n++] = 0.;
} else n += flag;
}
}
return(n);
}
int32_t tradebots_calcpreds(float *RTpreds,struct tradebot_arbpair *pair,double *svmfeatures)
{
int32_t i,j,n=0; double feature,preds[TRADEBOTS_NUMANSWERS];
memset(preds,0,sizeof(preds));
if ( pair->svms != 0 )
{
for (i=n=0; i<pair->numsvmfeatures; i++)
{
feature = svmfeatures[i];
for (j=0; j<TRADEBOTS_NUMANSWERS; j++)
preds[j] += feature * pair->svms[n++];
}
}
return(n);
}
void tradebots_calcanswers(struct tradebot_arbpair *pair)
{
double highbid,lowask,futurebid,futureask,ave,vol,bidaves[TRADEBOTS_NUMDECAYS],askaves[TRADEBOTS_NUMDECAYS],bidslopes[TRADEBOTS_NUMDECAYS],askslopes[TRADEBOTS_NUMDECAYS];
float rawfeatures[sizeof(pair->rawfeatures)/sizeof(*pair->rawfeatures)],futuremin=0,futuremax=0,minval=0,maxval=0,*hblas = 0;
uint32_t timestamp,firsttime = 0; long fpos,savepos; int32_t flag,i,iter,j,ind,maxi=0;
OCAS_PLUS_INF = _OCAS_PLUS_INF; OCAS_NEG_INF = -_OCAS_PLUS_INF;
if ( pair->fp != 0 )
{
for (iter=0; iter<2; iter++)
{
rewind(pair->fp);
fpos = 0;
while ( fread(rawfeatures,1,sizeof(pair->rawfeatures),pair->fp) == sizeof(pair->rawfeatures) )
{
savepos = ftell(pair->fp);
timestamp = tradebots_featureset(&highbid,&lowask,&ave,&vol,bidaves,askaves,bidslopes,askslopes,rawfeatures);
//printf("timestamp.%u firsttime.%u\n",timestamp,firsttime);
if ( timestamp == 0 )
continue;
if ( firsttime == 0 )
{
firsttime = timestamp;
maxi = (int32_t)((time(NULL) - firsttime) / 60 + 1);
hblas = calloc(maxi,sizeof(*hblas)*2);
printf("HBLAS[%d] allocated\n",maxi);
}
if ( (i= (timestamp - firsttime)/60) >= 0 && i < maxi )
{
if ( iter == 0 )
{
if ( hblas[i << 1] == 0 )
{
hblas[i << 1] = highbid;
hblas[(i << 1) + 1] = lowask;
}
else
{
_xblend(&hblas[i << 1],highbid,0.5);
_xblend(&hblas[(i << 1) + 1],lowask,0.5);
}
}
else
{
highbid = hblas[i << 1];
lowask = hblas[(i << 1) + 1];
if ( fabs(highbid) > SMALLVAL && fabs(lowask) > SMALLVAL )
{
memset(pair->answers,0,sizeof(pair->answers));
flag = 0;
for (j=0; j<TRADEBOTS_NUMANSWERS; j++)
{
ind = i + Tradebots_answergaps[j];
if ( ind < maxi )
{
if ( (j & 1) != 0 )
pair->answers[j] = _pairaved(futuremax,futuremin) - _pairaved(minval,maxval);
else
{
futurebid = hblas[ind << 1];
futureask = hblas[(ind << 1) + 1];
minval = MIN(highbid,lowask);
maxval = MAX(highbid,lowask);
futuremin = MIN(futurebid,futureask);
futuremax = MAX(futurebid,futureask);
if ( futuremin > maxval )
{
if ( futuremax < minval )
printf("%s/%s A%d: highly volatile minmax.(%f %f) -> (%f %f) %d of %d\n",pair->base,pair->rel,j,minval,maxval,futuremin,futuremax,i,maxi);
else
{
pair->answers[j] = (futuremin - maxval);
flag++;
}
}
else if ( futuremax < minval )
pair->answers[j] = (futuremax - minval), flag++;
//printf("i.%d j.%d gap.%d ind.%d answer %9.6f (%f %f) -> (%f %f)\n",i,j,Tradebots_answergaps[j],ind,pair->answers[j],minval,maxval,futuremin,futuremax);
}
}
}
if ( flag != 0 )
{
fseek(pair->fp,fpos,SEEK_SET);
if ( fwrite(pair->answers,1,sizeof(pair->answers),pair->fp) != sizeof(pair->answers) )
printf("error writing answers for %s/%s t%u i.%d of %d\n",pair->base,pair->rel,timestamp,i,maxi);
else if ( 0 )
{
for (j=0; j<TRADEBOTS_NUMANSWERS; j++)
printf("%9.6f ",pair->answers[j]);
printf("%s/%s answers %d of %d\n",pair->base,pair->rel,i,maxi);
}
fseek(pair->fp,savepos,SEEK_SET);
}
}
}
}
fpos = ftell(pair->fp);
}
if ( iter == 0 )
{
if ( hblas == 0 )
break;
highbid = hblas[0];
lowask = hblas[1];
for (i=1; i<maxi; i++)
{
if ( fabs(hblas[i << 1]) > SMALLVAL && fabs(hblas[(i << 1) + 1]) > SMALLVAL )
{
highbid = hblas[i << 1];
lowask = hblas[(i << 1) + 1];
}
else
{
hblas[i << 1] = highbid;
hblas[(i << 1) + 1] = lowask;
}
//printf("%9.6f ",_pairaved(highbid,lowask));
}
//printf("maxi.%d\n",maxi);
}
}
if ( hblas != 0 )
free(hblas);
}
if ( pair->fp != 0 && (ftell(pair->fp) % sizeof(pair->rawfeatures)) != 0 )
printf("ERROR: %s/%s not on feature boundary\n",pair->base,pair->rel);
}
double get_yval(double *answerp,int32_t selector,int32_t ind,int32_t refc,int32_t answerind)
{
float answer; struct tradebot_arbpair *pair; long savepos;
pair = &Arbpairs[refc];
if ( pair->fp != 0 )
{
savepos = ftell(pair->fp);
fseek(pair->fp,ind*sizeof(pair->rawfeatures)+answerind*sizeof(*pair->rawfeatures),SEEK_SET);
if ( fread(&answer,1,sizeof(answer),pair->fp) != sizeof(answer) )
answer = 0;
fseek(pair->fp,savepos,SEEK_SET);
if ( isnan(answer) != 0 )
return(0);
answer /= 10.;
/*if ( answer > .01 )
answer = .01;
else if ( answer < -.01 )
answer = -.01;
if ( answerp != 0 )
*answerp = answer;
*/
if ( answer > 0. )
answer = sqrt(answer);
else answer = -sqrt(-answer);
*answerp = answer;
/*if ( answer > 0. )
return(1.);
else if ( answer < 0. )
return(-1.);*/
return(answer);
}
return(0.);
}
float *get_features(int32_t numfeatures,int32_t refc,int32_t ind)
{
struct tradebot_arbpair *pair; long savepos; int32_t i,n; double svmfeatures[32768];
float rawfeatures[sizeof(pair->rawfeatures)],prevrawfeatures[60 * sizeof(pair->rawfeatures)],*svmf=0;
pair = &Arbpairs[refc];
pair->numsvmfeatures = numfeatures;
if ( pair->fp != 0 && ind > 61 )
{
savepos = ftell(pair->fp);
fseek(pair->fp,(ind-60)*sizeof(pair->rawfeatures),SEEK_SET);
if ( fread(prevrawfeatures,60,sizeof(pair->rawfeatures),pair->fp) == sizeof(pair->rawfeatures) && fread(&rawfeatures,1,sizeof(pair->rawfeatures),pair->fp) == sizeof(pair->rawfeatures) )
{
n = tradebots_calcsvmfeatures(svmfeatures,pair,rawfeatures,prevrawfeatures);
//int32_t nonz; for (i=nonz=0; i<n; i++)
// if ( svmfeatures[i] != 0 )
// nonz++;
//printf("%d ",nonz);
// printf("%9.6f ",rawfeatures[i]);
//printf("rawfeatures[%d] -> %d\n",ind,n);
if ( n != pair->numsvmfeatures )
{
//printf("unexpected numsvmfeatures refc.%d ind.%d %d vs %d\n",refc,ind,n,pair->numsvmfeatures);
return(0);
}
svmf = calloc(n,sizeof(*svmf));
for (i=0; i<n; i++)
svmf[i] = svmfeatures[i];
}
fseek(pair->fp,savepos,SEEK_SET);
}
return(svmf);
}
/*double set_ocas_model(int refc,int answerind,double *W,double W0,int numfeatures,int firstweekind,int len,int bad,double dist,double predabs,int posA,int negA,double answerabs,double aveanswer)
{
int32_t i,nonz=0;
for (i=0; i<numfeatures; i++)
if ( W[i] != 0. )
nonz++;//, printf("%.6f ",W[i]);
printf("model.%d W0 %.7f numfeatures.%d nonz.%d\n",answerind,W0,numfeatures,nonz);
return(W0);
}*/
void tradebots_modelfname(char *modelname,char *base,char *rel,int32_t answerind,int32_t numfeatures)
{
sprintf(modelname,"SVM/models/%s_%s_%d.A%d",base,rel,numfeatures,answerind);
OS_portable_path(modelname);
}
double load_model(register int *posAp,register int *negAp,register double *W,register int refc,register int answerind,register int numfeatures)
{
int32_t j; FILE *fp; double perc; char modelname[512];
tradebots_modelfname(modelname,Arbpairs[refc].base,Arbpairs[refc].rel,answerind,numfeatures);
if ( (fp= fopen(modelname,"rb")) != 0 )
{
//printf("load file\n");
j = (int)fread(W,sizeof(*W),numfeatures+1,fp);
//fread(&W0,1,sizeof(W0),fp);
if ( fread(&perc,1,sizeof(perc),fp) == sizeof(perc) )
j++;
if ( fread(posAp,1,sizeof(*posAp),fp) == sizeof(*posAp) )
j++;
if ( fread(negAp,1,sizeof(*negAp),fp) == sizeof(*negAp) )
j++;
fclose(fp);
//printf("loaded %s bias %9.6f | %5.2f%%\n",modelname,W[numfeatures],perc);
return(perc);
}
#ifndef DISABLE_EXISTINGMODEL
else if ( 0 )
{
tradebots_modelfname(modelname,Arbpairs[refc].base,Arbpairs[refc].rel,answerind,numfeatures);
if ( (fp= fopen(modelname,"rb")) != 0 )
{
j = (int)fread(W,sizeof(*W),numfeatures+1,fp);
if ( fread(&perc,1,sizeof(perc),fp) == sizeof(perc) )
j++;
if ( fread(posAp,1,sizeof(*posAp),fp) == sizeof(*posAp) )
j++;
if ( fread(negAp,1,sizeof(*negAp),fp) == sizeof(*negAp) )
j++;
fclose(fp);
printf("Using backup model for %s/%s loaded %s bias %9.6f | %5.2f%%\n",Arbpairs[refc].base,Arbpairs[refc].rel,modelname,W[numfeatures],perc);
return(perc * .9);
}
}
#endif
else printf("couldn't load (%s)\n",modelname);
return(-1);
}
int save_model(int refc,int answerind,double *W,int numfeatures,double W0,double perc,int posA,int negA)
{
FILE *fp; char modelname[512];
tradebots_modelfname(modelname,Arbpairs[refc].base,Arbpairs[refc].rel,answerind,numfeatures);
printf("save model.(%s)\n",modelname);
if ( (fp= fopen(modelname,"wb")) != 0 )
{
//printf("save %s %.f%% posA.%d negA.%d\n",modelname,perc,posA,negA);
fwrite(W,sizeof(*W),numfeatures,fp);
fwrite(&W0,1,sizeof(W0),fp);
fwrite(&perc,1,sizeof(perc),fp);
fwrite(&posA,1,sizeof(posA),fp);
fwrite(&negA,1,sizeof(negA),fp);
fclose(fp);
return(0);
}
return(-1);
}
double init_model(double *percp,double *W,double *oldW,int c,int answerind,int numfeatures)
{
int32_t j,posA,negA,nonz=0; double *bestmodel=0;
memset(oldW,0,sizeof(*oldW)*numfeatures);
memset(W,0,sizeof(*W)*numfeatures);
if ( load_model(&posA,&negA,W,c,answerind,numfeatures) > 0 )
{
bestmodel = W;
if ( bestmodel != 0 )
{
for (j=0; j<=numfeatures; j++)
{
if ( bestmodel[j] != 0 )
nonz++;
oldW[j] = W[j];
}
if ( nonz != 0 )
return(bestmodel[numfeatures]);
}
}
return(0.);
}
double set_ocas_model(int refc,int answerind,double *W,double W0,int numfeatures,int firstweekind,int len,int bad,double dist,double predabs,int posA,int negA,double answerabs,double aveanswer)
{
double perc = (100. * (double)(len - bad)) / len;
#ifndef DISABLE_EXISTINGMODEL
int32_t _posA,_negA; double *tmpW,fileperc;
tmpW = calloc(numfeatures+2,sizeof(*tmpW));
if ( (fileperc= load_model(&_posA,&_negA,tmpW,refc,answerind,numfeatures)) > perc )
{
if ( (_posA+_negA) != 0 && _posA >= posA && _negA >= negA )
{
memcpy(W,tmpW,sizeof(*W)*numfeatures);
printf("%s/%s.A%02d numfeatures.%d posA.%d negA.%d saved model %f is better than %f +A%d -A%d\n",Arbpairs[refc].base,Arbpairs[refc].rel,answerind,numfeatures,_posA,_negA,fileperc,perc,posA,negA);
W0 = tmpW[numfeatures];
free(tmpW);
return(tmpW[numfeatures]);
}
}
free(tmpW);
#endif
save_model(refc,answerind,W,numfeatures,W0,perc,posA,negA);
return(W0);
}
#ifndef _WIN
#include "tradebots_SVM.h"
#endif
static char *assetids[][2] =
{
{ "12071612744977229797", "UNITY" },
{ "15344649963748848799", "DEX" },
{ "6883271355794806507", "PANGEA" },
{ "17911762572811467637", "JUMBLR" },
{ "17083334802666450484", "BET" },
{ "13476425053110940554", "CRYPTO" },
{ "6932037131189568014", "HODL" },
{ "3006420581923704757", "SHARK" },
{ "17571711292785902558", "BOTS" },
{ "10524562908394749924", "MGW" },
};
uint64_t NXT_assetidfind(char *base)
{
int32_t i;
for (i=0; i<sizeof(assetids)/sizeof(*assetids); i++)
if ( strcmp(assetids[i][1],base) == 0 )
return(calc_nxt64bits(assetids[i][0]));
return(0);
}
char *NXT_assetnamefind(char *base)
{
int32_t i;
for (i=0; i<sizeof(assetids)/sizeof(*assetids); i++)
if ( strcmp(assetids[i][0],base) == 0 )
return(assetids[i][1]);
return(0);
}
void tradebot_arbentry(struct tradebot_arbentry *arb,char *exchange,double price,double volume,uint32_t timestamp,double profitmargin)
{
if ( arb->exchange[0] == 0 )
strcpy(arb->exchange,exchange);
if ( strcmp(arb->exchange,exchange) == 0 )
{
arb->price = price;
arb->volume = volume;
arb->timestamp = timestamp;
arb->profitmargin = profitmargin;
} else printf("mismatched arbexchange? (%s vs %s)\n",arb->exchange,exchange);
}
struct tradebot_arbexchange *tradebots_arbexchange_find(struct tradebot_arbpair *pair,char *exchange)
{
int32_t i;
if ( pair->numexchanges > sizeof(pair->exchanges)/sizeof(*pair->exchanges) )
{
printf("data corruption pair.%p %s %s/%s numexchanges.%d\n",pair,exchange,pair->base,pair->rel,pair->numexchanges);
return(0);
}
for (i=0; i<pair->numexchanges; i++)
if ( strcmp(pair->exchanges[i].name,exchange) == 0 )
return(&pair->exchanges[i]);
return(0);
}
struct tradebot_arbexchange *tradebots_arbexchange_create(struct tradebot_arbpair *pair,char *exchange)
{
if ( pair->numexchanges < sizeof(pair->exchanges)/sizeof(*pair->exchanges) )
{
strcpy(pair->exchanges[pair->numexchanges].name,exchange);
return(&pair->exchanges[pair->numexchanges++]);
} else return(0);
}
void tradebot_arbcandidate(struct supernet_info *myinfo,char *exchange,int32_t tradedir,char *base,char *rel,double price,double volume,uint32_t timestamp,double profitmargin)
{
int32_t i,offset,flag; double highbid,lowask,lastbid,lastask,arbval; uint32_t now;
struct tradebot_arbentry *bid,*ask; struct tradebot_arbexchange *arbex; struct tradebot_arbpair *pair = 0;
if ( strcmp(rel,"BTC") != 0 && strcmp(rel,"NXT") != 0 && strcmp(rel,"USD") != 0 && strcmp(rel,"CNY") != 0 )
{
printf("reject non-BTC arbcandidate (%s/%s)\n",base,rel);
return;
}
offset = (tradedir > 0) ? 0 : 1;
if ( (pair= tradebots_arbpair_find(base,rel)) == 0 )
pair = tradebots_arbpair_create(base,rel);
if ( pair == 0 )
{
printf("cant get pair for %s %s/%s\n",exchange,base,rel);
return;
}
if ( (arbex= tradebots_arbexchange_find(pair,exchange)) == 0 )
arbex = tradebots_arbexchange_create(pair,exchange);
if ( arbex != 0 )
{
//printf("cand.%d %16s %s %12.6f (%5s/%-5s) at %12.8f profit %.03f\n",pair->numexchanges,exchange,tradedir<0?"ask":"bid",volume,base,rel,price,profitmargin);
tradebot_arbentry(&arbex->trades[offset],exchange,price,volume,timestamp,profitmargin);
bid = ask = 0;
pair->highbid = pair->lowask = highbid = lowask = 0.;
now = (uint32_t)time(NULL);
//if ( pair->numexchanges >= 2 )
{
for (i=0; i<pair->numexchanges; i++)
{
arbex = &pair->exchanges[i];
if ( arbex->trades[0].price != 0. && (highbid == 0. || arbex->trades[0].price >= highbid) )
{
bid = &arbex->trades[0];
if ( now > bid->timestamp+30 )
bid->price = 0.;
else highbid = bid->price;
}
if ( arbex->trades[1].price != 0. && (lowask == 0. || arbex->trades[1].price <= lowask) )
{
ask = &arbex->trades[1];
if ( now > ask->timestamp+30 )
ask->price = 0.;
else lowask = ask->price;
}
//printf("%p %s %s %f %f -> %p %p %f %f (%f %f)\n",pair,pair->base,arbex->name,arbex->trades[0].price,arbex->trades[1].price,bid,ask,highbid,lowask,pair->highbid,pair->lowask);
}
flag = 0;
if ( Pair_NXTBTC != 0 && pair->btccounter != Pair_NXTBTC->counter )
flag |= 1;
if ( Pair_BTCUSD != 0 && pair->usdcounter != Pair_BTCUSD->counter )
flag |= 2;
if ( Pair_BTCCNY != 0 && pair->cnycounter != Pair_BTCCNY->counter )
flag |= 4;
//printf("%s %s/%s flag.%d (%d %d) %p %p\n",exchange,base,rel,flag,pair->btccounter,Pair_NXTBTC!=0?Pair_NXTBTC->counter:-1,bid,ask);
if ( bid != 0 && ask != 0 && bid->price != 0. && ask->price != 0 && (now - bid->timestamp) < 30 && (now - ask->timestamp) < 30 && (fabs(bid->price - pair->highbid) > SMALLVAL || fabs(ask->price - pair->lowask) > SMALLVAL || (strcmp(pair->rel,"NXT") == 0 && flag != 0)) )
{
pair->counter++;
pair->hblavolume = volume = MIN(bid->volume,ask->volume);
arbval = lastbid = lastask = 0.;
memset(pair->dirmasks,0,sizeof(pair->dirmasks));
memset(pair->slopedirs,0,sizeof(pair->slopedirs));
if ( strcmp(pair->rel,"NXT") == 0 )
{
if ( Pair_NXTBTC != 0 && Pair_NXTBTC->highbid != 0. && Pair_NXTBTC->lowask != 0. )
{
pair->btccounter = Pair_NXTBTC->counter;
pair->btcbid = highbid * Pair_NXTBTC->highbid;
pair->btcask = lowask * Pair_NXTBTC->lowask;
pair->btcvol = volume * _pairaved(pair->btcbid,pair->btcask);
}
}
else if ( strcmp(pair->rel,"BTC") == 0 )
{
pair->btcbid = highbid;
pair->btcask = lowask;
pair->btcvol = volume;
}
if ( strcmp(pair->rel,"USD") == 0 )
{
pair->usdbid = highbid;
pair->usdask = lowask;
pair->usdvol = volume;
}
if ( strcmp(pair->rel,"CNY") == 0 )
{
pair->cnybid = highbid;
pair->cnyask = lowask;
pair->cnyvol = volume;
}
if ( pair->btcbid != 0. && pair->btcask != 0. )
{
if ( strcmp(pair->rel,"USD") != 0 && Pair_BTCUSD != 0 && Pair_BTCUSD->highbid != 0. && Pair_BTCUSD->lowask != 0. )
{
pair->usdcounter = Pair_BTCUSD->counter;
pair->usdbid = pair->btcbid * Pair_BTCUSD->highbid;
pair->usdask = pair->btcask * Pair_BTCUSD->lowask;
pair->usdvol = pair->btcvol * _pairaved(pair->usdbid,pair->usdask);
}
if ( strcmp(pair->rel,"CNY") != 0 && Pair_BTCCNY != 0 && Pair_BTCCNY->highbid != 0. && Pair_BTCCNY->lowask != 0. )
{
pair->cnycounter = Pair_BTCCNY->counter;
pair->cnybid = pair->btcbid * Pair_BTCCNY->highbid;
pair->cnyask = pair->btcask * Pair_BTCCNY->lowask;
pair->cnyvol = pair->btcvol * _pairaved(pair->cnybid,pair->cnyask);
}
}
for (i=0; i<TRADEBOTS_NUMDECAYS; i++)
{
if ( (pair->bidslopes[i]= dxblend(&pair->bidaves[i],highbid,Tradebots_decays[i])) > 0. )
pair->slopedirs[0] |= (1 << i);
if ( (pair->askslopes[i]= dxblend(&pair->askaves[i],lowask,Tradebots_decays[i])) > 0. )
pair->slopedirs[1] |= (1 << i);
lastbid = pair->bidaves[i];
lastask = pair->askaves[i];
//printf("(%.8f %.8f) ",lastbid,lastask);
}
for (i=0; i<TRADEBOTS_NUMDECAYS; i++)
{
if ( i == 0 )
{
if ( highbid > lastbid )
pair->dirmasks[0] |= (1 << i);
if ( lowask > lastask )
pair->dirmasks[1] |= (1 << i);
}
else
{
if ( pair->bidaves[i-1] > lastbid )
pair->dirmasks[0] |= (1 << i);
if ( pair->askaves[i-1] > lastask )
pair->dirmasks[1] |= (1 << i);
}
}
//printf("%12.6f %7s/%-3s %8s %14.8f %8s %14.8f spread %6.2f%% %02x:%02x %02x:%02x %d\n",volume,base,rel,bid->exchange,highbid,ask->exchange,lowask,100.*(lowask-highbid)/_pairaved(highbid,lowask),pair->dirmasks[0],pair->slopedirs[0],pair->dirmasks[1],pair->slopedirs[1],pair->counter);
//printf("BTC.(%.8f %.8f) %.8f %.8f USD.(%.4f %.4f) CNY.(%.3f %.3f)\n",pair->btcbid,pair->btcask,Pair_BTCUSD!=0?Pair_BTCUSD->highbid:0,Pair_BTCUSD!=0?Pair_BTCUSD->lowask:0,pair->usdbid,pair->usdask,pair->cnybid,pair->cnyask);
}
if ( highbid != 0 )
pair->highbid = highbid;
if ( lowask != 0 )
pair->lowask = lowask;
//printf(">>>>>>> %s (%s/%s) BTC %.8f %.8f v%f counter.%d btc.%d (%d)\n",exchange,pair->base,pair->rel,pair->btcbid,pair->btcask,pair->btcvol,pair->counter,pair->btccounter,Pair_NXTBTC!=0?Pair_NXTBTC->counter:-1);
if ( bid != 0 && ask != 0 && highbid != 0. && lowask != 0. && highbid > lowask && strcmp(bid->exchange,ask->exchange) != 0 && strcmp(rel,"BTC") == 0 )
{
volume = MIN(bid->volume,ask->volume);
if ( volume*_pairaved(highbid,lowask) > 0.1 )
volume = 0.1 / _pairaved(highbid,lowask);
if ( highbid * (1. - bid->profitmargin) > lowask * (1. + ask->profitmargin) )
{
arbval = highbid * (1. - bid->profitmargin) - lowask * (1. + ask->profitmargin);
printf(">>>>>>>> FOUND ARB %s/%s highbid.%s %.8f lowask.%s %.8f volume %f (%.8f %.8f) %.4f%%\n",pair->base,pair->rel,bid->exchange,bid->price,ask->exchange,ask->price,volume,highbid,lowask,100.*(highbid-lowask)/_pairaved(highbid,lowask));
InstantDEX_buy(myinfo,0,0,0,ask->exchange,pair->base,"BTC",ask->price,volume,1);
InstantDEX_sell(myinfo,0,0,0,bid->exchange,pair->base,"BTC",bid->price,volume,1);
printf("finished trades %s/%s volume %f\n",pair->base,pair->rel,volume);
}
}
if ( pair->counter > TRADEBOTS_NUMDECAYS )
{
if ( pair->lasttime != time(NULL) )
{
if ( (pair->numrawfeatures= tradebots_calcrawfeatures(pair)) > 0 )
{
if ( pair->numsvmfeatures != 0 )
{
if ( myinfo->svmfeatures == 0 )
myinfo->svmfeatures = calloc(sizeof(*myinfo->svmfeatures),pair->numsvmfeatures);
if ( tradebots_calcsvmfeatures(myinfo->svmfeatures,pair,pair->rawfeatures,pair->prevrawfeatures) > 0 )
tradebots_calcpreds(pair->RTpreds,pair,myinfo->svmfeatures);
}
}
pair->lasttime = (uint32_t)time(NULL);
}
if ( 0 && time(NULL) > pair->lastanswertime+3600 )
{
tradebots_calcanswers(pair);
pair->lastanswertime = (uint32_t)time(NULL);
}
}
}
}
}
cJSON *linfo_json(struct liquidity_info *li)
{
cJSON *item = cJSON_CreateObject();
jaddstr(item,"base",li->base);
jaddstr(item,"rel",li->rel);
if ( li->exchange[0] != 0 )
jaddstr(item,"exchange",li->exchange);
if ( li->assetid != 0 )
jadd64bits(item,"assetid",li->assetid);
if ( li->profit != 0. )
jaddnum(item,"profitmargin",li->profit);
if ( li->refprice != 0. )
jaddnum(item,"refprice",li->refprice);
if ( li->bid != 0. )
jaddnum(item,"bid",li->bid);
if ( li->ask != 0. )
jaddnum(item,"ask",li->ask);
if ( li->minvol != 0. )
jaddnum(item,"minvol",li->minvol);
if ( li->maxvol != 0. )
jaddnum(item,"maxvol",li->maxvol);
if ( li->totalvol != 0. )
jaddnum(item,"totalvol",li->totalvol);
return(item);
}
void _default_liquidity_command(struct supernet_info *myinfo,char *base,bits256 hash,cJSON *vals)
{
struct liquidity_info li,refli; int32_t i; char *exchange,*relstr,numstr[32];
if ( (exchange= jstr(vals,"exchange")) == 0 )
exchange = "DEX";
else if ( strcmp(exchange,"*") == 0 )
exchange = "";
else if ( exchanges777_find(exchange) == 0 )
{
printf("cant find exchange.(%s)\n",exchange);
return;
}
if ( (relstr= jstr(vals,"rel")) == 0 )
relstr = "BTC";
if ( base == 0 || base[0] == 0 )
base = jstr(vals,"base");
if ( base == 0 || base[0] == 0 )
return;
memset(&li,0,sizeof(li));
safecopy(li.base,base,sizeof(li.base));
safecopy(li.rel,relstr,sizeof(li.rel));
strncpy(li.exchange,exchange,sizeof(li.exchange));
li.profit = jdouble(vals,"profit");
li.refprice = jdouble(vals,"refprice");
li.bid = jdouble(vals,"bid");
li.ask = jdouble(vals,"ask");
if ( (li.minvol= jdouble(vals,"minvol")) <= 0. )
li.minvol = (strcmp("BTC",base) == 0) ? 0.0001 : 0.001;
if ( strcmp(li.base,"KMD") == 0 && strcmp(li.rel,"BTC") == 0 && li.minvol >= 100. )
li.minvol = 100.;
if ( (li.maxvol= jdouble(vals,"maxvol")) < li.minvol )
li.maxvol = li.minvol;
if ( (li.totalvol= jdouble(vals,"total")) < li.maxvol )
li.totalvol = li.maxvol;
if ( strcmp("NXT",li.rel) == 0 )
li.assetid = NXT_assetidfind(base);
else if ( strcmp("UNITY",base) == 0 )
li.assetid = NXT_assetidfind(base);
if ( strcmp(li.base,"BTC") == 0 && strcmp("USD",li.rel) != 0 && strcmp("CNY",li.rel) != 0 )
{
printf("unsupported base BTC (%s/%s)\n",li.base,li.rel);
return;
}
if ( strcmp(li.base,"BTC") != 0 && strcmp("BTC",li.rel) != 0 &&
strcmp(li.base,"NXT") != 0 && strcmp("NXT",li.rel) != 0 &&
strcmp(li.base,"USD") != 0 && strcmp("USD",li.rel) != 0 &&
strcmp(li.base,"CNY") != 0 && strcmp("CNY",li.rel) != 0 &&
strcmp(li.exchange,"DEX") != 0 ) // filter out most invalids
{
printf("unsupported base/rel %s/%s\n",li.base,li.rel);
return;
}
for (i=0; i<sizeof(myinfo->linfos)/sizeof(*myinfo->linfos); i++)
{
refli = myinfo->linfos[i];
if ( strcmp(li.rel,refli.base) == 0 && strcmp(li.base,refli.rel) == 0 )
{
/*li = refli;
strcpy(li.base,refli.base);
strcpy(li.rel,refli.rel);
if ( fabs(li.refprice) > SMALLVAL )
li.refprice = (1. / li.refprice);
else li.refprice = 0.;
li.dir = -li.dir;
myinfo->linfos[i] = li;*/
printf("cant Set rev linfo[%d] (%s/%s) %.6f %.8f already have (%s/%s)\n",i,li.rel,li.base,li.profit,li.refprice,refli.base,refli.rel);
return;
}
else if ( refli.base[0] == 0 || (strcmp(li.base,refli.base) == 0 && strcmp(li.rel,refli.rel) == 0 && strcmp(li.exchange,refli.exchange) == 0) )
{
if ( refli.base[0] == 0 && li.exchange[0] != 0 && strcmp(li.exchange,"DEX") != 0 )
{
if ( strcmp("NXT",li.rel) == 0 && li.assetid != 0 )
{
sprintf(numstr,"%llu",(long long)li.assetid);
printf("monitor %s %s\n",li.rel,numstr);
tradebot_monitor(myinfo,0,0,0,li.exchange,numstr,li.rel,0.);
} else tradebot_monitor(myinfo,0,0,0,li.exchange,li.base,li.rel,0.);
}
myinfo->linfos[i] = li;
//printf("Set linfo[%d] %s (%s/%s) profitmargin %.6f bid %.8f ask %.8f minvol %.6f maxvol %.6f ref %.8f <- (%s)\n",i,li.exchange,li.base,li.rel,li.profit,li.bid,li.ask,li.minvol,li.maxvol,li.refprice,jprint(vals,0));
return;
}
}
printf("ERROR: too many linfos %d\n",i);
}
int32_t _default_volume_ok(struct supernet_info *myinfo,struct liquidity_info *li,int32_t dir,double volume,double price)
{
double minvol,maxvol;
if ( dir < 0 )
{
minvol = li->minvol;
maxvol = li->maxvol;
}
else
{
minvol = price * li->minvol;
maxvol = price * li->maxvol;
}
printf("dir.%d minvol %f maxvol %f vs (%f %f) volume %f price %.8f\n",dir,li->minvol,li->maxvol,minvol,maxvol,volume,price);
if ( (minvol == 0. || volume >= minvol) && (maxvol == 0. || volume <= maxvol) )
return(0);
else return(-1);
}
double _default_liquidity_active(struct supernet_info *myinfo,double *refpricep,char *exchange,char *base,char *rel,double destvolume)
{
int32_t i,dir; struct liquidity_info refli;
*refpricep = 0.;
for (i=0; i<sizeof(myinfo->linfos)/sizeof(*myinfo->linfos); i++)
{
refli = myinfo->linfos[i];
if ( refli.base[0] == 0 )
continue;
if ( strcmp(base,refli.base) == 0 && strcmp(rel,refli.rel) == 0 )
dir = 1;
else if ( strcmp(rel,refli.base) == 0 && strcmp(base,refli.rel) == 0 )
dir = -1;
else continue;
if ( exchange[0] != 0 && refli.exchange[0] != 0 && strcmp(exchange,refli.exchange) != 0 )
{
printf("continue %s %s/%s [%d] dir.%d vs %s %s/%s\n",exchange,base,rel,i,dir,refli.exchange,refli.base,refli.rel);
continue;
}
if ( _default_volume_ok(myinfo,&refli,dir,destvolume,dir > 0 ? refli.bid : refli.ask) == 0 )
{
if ( refli.profit != 0. )
*refpricep = refli.refprice;
else if ( dir > 0 )
*refpricep = refli.bid;
else if ( dir < 0 )
*refpricep = refli.ask;
printf(">>>>>>>> %s %s/%s [%d] dir.%d vs %s/%s -> %.8f margin %f\n",exchange,base,rel,i,dir,refli.base,refli.rel,*refpricep,refli.profit);
return(refli.profit);
}
break;
}
return(0.);
}
struct liquidity_info *_default_lifind(struct supernet_info *myinfo,int32_t *dirp,char *base,char *rel)
{
struct liquidity_info *li; int32_t i;
*dirp = 0;
for (i=0; i<sizeof(myinfo->linfos)/sizeof(*myinfo->linfos); i++)
{
li = &myinfo->linfos[i];
if ( strcmp(li->base,base) == 0 && strcmp(li->rel,rel) == 0 )
{
*dirp = 1;
return(li);
}
else if ( strcmp(li->base,rel) == 0 && strcmp(li->rel,base) == 0 )
{
*dirp = -1;
return(li);
}
}
return(0);
}
void _default_swap_balancingtrade(struct supernet_info *myinfo,struct basilisk_swap *swap,int32_t iambob)
{
// update balance, compare to target balance, issue balancing trade via central exchanges, if needed
struct liquidity_info *li; double vol,price,volume,srcamount,destamount,profitmargin,dir=0.,dotrade=1.; char base[64],rel[64]; int32_t idir; char *tradestr=0; cJSON *tradejson;
srcamount = swap->I.req.srcamount;
destamount = swap->I.req.destamount;
profitmargin = (double)swap->I.req.profitmargin / 1000000.;
if ( srcamount <= SMALLVAL || destamount <= SMALLVAL )
{
printf("illegal amount for balancing %f %f\n",srcamount,destamount);
return;
}
if ( (li= _default_lifind(myinfo,&idir,swap->I.req.src,swap->I.req.dest)) != 0 )
{
if ( idir < 0 )
vol = 1. / ((double)destamount / SATOSHIDEN);
else vol = ((double)srcamount / SATOSHIDEN);
li->totalvol -= vol;
if ( li->totalvol <= 0. || (li->minvol != 0. && li->totalvol < li->minvol) )
li->minvol = li->maxvol = li->totalvol = 0.;
printf("li.(%s/%s) totalvol %f after -= %f minmax.(%f %f)\n",li->base,li->rel,li->totalvol,vol,li->minvol,li->maxvol);
}
strcpy(rel,"BTC");
if ( strcmp(swap->I.req.src,"BTC") == 0 )
{
strcpy(base,swap->I.req.dest);
price = (srcamount / destamount);
volume = destamount / SATOSHIDEN;
dir = -1.;
}
else if ( strcmp(swap->I.req.dest,"BTC") == 0 )
{
strcpy(base,swap->I.req.src);
price = (destamount / srcamount);
volume = srcamount / SATOSHIDEN;
dir = 1.;
}
else
{
printf("only BTC trades can be balanced, not (%s/%s)\n",swap->I.req.src,swap->I.req.dest);
return;
}
if ( iambob != 0 )
{
if ( myinfo->IAMLP != 0 )
{
printf("BOB: price %f * vol %f -> %s newprice %f margin %.2f%%\n",price,volume,dir < 0. ? "buy" : "sell",price + dir * price * profitmargin,100*profitmargin);
if ( dir < 0. )
tradestr = InstantDEX_buy(myinfo,0,0,0,"bittrex",base,rel,price,volume,dotrade);
else tradestr = InstantDEX_sell(myinfo,0,0,0,"bittrex",base,rel,price,volume,dotrade);
}
}
else
{
if ( myinfo->IAMLP != 0 )
{
printf("ALICE: price %f * vol %f -> %s newprice %f margin %.2f%%\n",price,volume,dir > 0. ? "buy" : "sell",price - dir * price * profitmargin,100*profitmargin);
if ( dir > 0. )
tradestr = InstantDEX_buy(myinfo,0,0,0,"bittrex",base,rel,price,volume,dotrade);
else tradestr = InstantDEX_sell(myinfo,0,0,0,"bittrex",base,rel,price,volume,dotrade);
}
}
if ( tradestr != 0 )
{
if ( (tradejson= cJSON_Parse(tradestr)) != 0 )
{
if ( jobj(tradejson,"error") == 0 ) // balancing is opposite trade
tradebot_pendingadd(myinfo,tradejson,swap->I.req.dest,destamount,swap->I.req.src,srcamount);
else free_json(tradejson);
}
free(tradestr);
}
}
void tradebot_swap_balancingtrade(struct supernet_info *myinfo,struct basilisk_swap *swap,int32_t iambob)
{
if ( swap->bobcoin != 0 && swap->alicecoin != 0 )
{
if ( iambob != 0 )
{
if ( strcmp(swap->I.req.src,swap->bobcoin->symbol) == 0 )
swap->bobcoin->DEXinfo.DEXpending -= swap->I.req.srcamount;
else if ( strcmp(swap->I.req.dest,swap->bobcoin->symbol) == 0 )
swap->bobcoin->DEXinfo.DEXpending -= swap->I.req.destamount;
}
else
{
if ( strcmp(swap->I.req.src,swap->alicecoin->symbol) == 0 )
swap->alicecoin->DEXinfo.DEXpending -= swap->I.req.srcamount;
else if ( strcmp(swap->I.req.dest,swap->alicecoin->symbol) == 0 )
swap->alicecoin->DEXinfo.DEXpending -= swap->I.req.destamount;
}
}
printf(">>>>>>>>>>>>>>>>>> balancing trade done by marketmaker\n");
return;
if ( swap->balancingtrade == 0 )
_default_swap_balancingtrade(myinfo,swap,iambob);
else (*swap->balancingtrade)(myinfo,swap,iambob);
}
void tradebot_liquidity_command(struct supernet_info *myinfo,char *base,bits256 hash,cJSON *vals)
{
// processed in LIFO manner which allows to override existing command
if ( myinfo->liquidity_command == 0 )
_default_liquidity_command(myinfo,base,hash,vals);
else (*myinfo->liquidity_command)(myinfo,base,hash,vals);
}
double tradebot_liquidity_active(struct supernet_info *myinfo,double *refpricep,char *exchange,char *base,char *rel,double destvolume)
{
if ( myinfo->liquidity_active == 0 )
return(_default_liquidity_active(myinfo,refpricep,exchange,base,rel,destvolume));
else return((*myinfo->liquidity_active)(myinfo,refpricep,exchange,base,rel,destvolume));
}
// struct exchange_quote { uint64_t satoshis,orderid,offerNXT,exchangebits; double price,volume; uint32_t timestamp,val; };
void tradebots_processprices(struct supernet_info *myinfo,struct exchange_info *exchange,char *base,char *rel,struct exchange_quote *bidasks,int32_t numbids,int32_t numasks)
{
double price,profitmargin=0.,volume; struct tradebot_arbpair *pair;
if ( strcmp(rel,"NXT") == 0 && strcmp(base,"BTC") != 0 && (base= NXT_assetnamefind(base)) == 0 )
{
//printf("reject %s %s/%s\n",exchange,base,rel);
return;
}
else if ( strcmp(base,"NXT") == 0 && strcmp(rel,"BTC") != 0 && (rel= NXT_assetnamefind(rel)) == 0 )
{
//printf("reject %s %s/%s\n",exchange,base,rel);
return;
}
printf("%s %s/%s bids.%d asks.%d\n",exchange->name,base,rel,numbids,numasks);
if ( numbids > 0 && (volume= bidasks[0].volume) > 0. && (profitmargin=
tradebot_liquidity_active(myinfo,&price,exchange->name,base,rel,volume)) > 0. )
{
if ( price == 0. )
price = bidasks[0].price;
tradebot_arbcandidate(myinfo,exchange->name,1,base,rel,price,volume,(uint32_t)time(NULL),profitmargin);
}
if ( numasks > 0 && (volume= bidasks[1].volume) > 0. && (profitmargin=
tradebot_liquidity_active(myinfo,&price,exchange->name,rel,base,volume)) > 0. )
{
if ( price == 0. )
price = bidasks[1].price;
tradebot_arbcandidate(myinfo,exchange->name,-1,base,rel,price,volume,(uint32_t)time(NULL),profitmargin);
}
if ( (pair= tradebots_arbpair_find(base,rel)) == 0 )
pair = tradebots_arbpair_create(base,rel);
if ( pair != 0 )
{
if ( strcmp(rel,"NXT") == 0 )
{
if ( pair->btcbid != 0. && pair->btcask != 0. )
{
tradebot_arbcandidate(myinfo,"arb",1,base,"BTC",pair->btcbid,pair->btcvol,(uint32_t)time(NULL),profitmargin);
tradebot_arbcandidate(myinfo,"arb",-1,base,"BTC",pair->btcask,pair->btcvol,(uint32_t)time(NULL),profitmargin);
}
}
if ( strcmp(rel,"USD") != 0 && pair->usdbid != 0. && pair->usdask != 0. )
{
tradebot_arbcandidate(myinfo,"arb",1,base,"USD",pair->usdbid,pair->usdvol,(uint32_t)time(NULL),profitmargin);
tradebot_arbcandidate(myinfo,"arb",-1,base,"USD",pair->usdask,pair->usdvol,(uint32_t)time(NULL),profitmargin);
}
if ( strcmp(rel,"CNY") != 0 && pair->cnybid != 0. && pair->cnyask != 0. )
{
tradebot_arbcandidate(myinfo,"arb",1,base,"CNY",pair->cnybid,pair->cnyvol,(uint32_t)time(NULL),profitmargin);
tradebot_arbcandidate(myinfo,"arb",-1,base,"CNY",pair->cnyask,pair->cnyvol,(uint32_t)time(NULL),profitmargin);
}
}
}