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/*------------------------------------------------------------------------------
* rtksvr.c : rtk server functions
*
* Copyright (C) 2007-2018 by T.TAKASU, All rights reserved.
*
* options : -DWIN32 use WIN32 API
*
* version : $Revision:$ $Date:$
* history : 2009/01/07 1.0 new
* 2009/06/02 1.1 support glonass
* 2010/07/25 1.2 support correction input/log stream
* supoort online change of output/log streams
* supoort monitor stream
* added api:
* rtksvropenstr(),rtksvrclosestr()
* changed api:
* rtksvrstart()
* 2010/08/25 1.3 fix problem of ephemeris time inversion (2.4.0_p6)
* 2010/09/08 1.4 fix problem of ephemeris and ssr squence upset
* (2.4.0_p8)
* 2011/01/10 1.5 change api: rtksvrstart(),rtksvrostat()
* 2011/06/21 1.6 fix ephemeris handover problem
* 2012/05/14 1.7 fix bugs
* 2013/03/28 1.8 fix problem on lack of glonass freq number in raw
* fix problem on ephemeris with inverted toe
* add api rtksvrfree()
* 2014/06/28 1.9 fix probram on ephemeris update of beidou
* 2018/01/29 1.10 fix probram on ssr orbit/clock inconsistency
* fix bug on ion/utc parameters input
* fix server-crash with server-cycle > 1000
* add rtkfree() in rtksvrfree()
*-----------------------------------------------------------------------------*/
#include "rtklib.h"
static const char rcsid[]="$Id:$";
/* write solution header to output stream ------------------------------------*/
static void writesolhead(stream_t *stream, const solopt_t *solopt)
{
unsigned char buff[1024];
int n;
n=outsolheads(buff,solopt);
strwrite(stream,buff,n);
}
/* save output buffer --------------------------------------------------------*/
static void saveoutbuf(rtksvr_t *svr, unsigned char *buff, int n, int index)
{
rtksvrlock(svr);
n=n<svr->buffsize-svr->nsb[index]?n:svr->buffsize-svr->nsb[index];
memcpy(svr->sbuf[index]+svr->nsb[index],buff,n);
svr->nsb[index]+=n;
rtksvrunlock(svr);
}
/* write solution to output stream -------------------------------------------*/
static void writesol(rtksvr_t *svr, int index)
{
solopt_t solopt=solopt_default;
unsigned char buff[1024];
int i,n;
tracet(4,"writesol: index=%d\n",index);
for (i=0;i<2;i++) {
/* output solution */
n=outsols(buff,&svr->rtk.sol,svr->rtk.rb,svr->solopt+i);
strwrite(svr->stream+i+3,buff,n);
/* save output buffer */
saveoutbuf(svr,buff,n,i);
/* output extended solution */
n=outsolexs(buff,&svr->rtk.sol,svr->rtk.ssat,svr->solopt+i);
strwrite(svr->stream+i+3,buff,n);
/* save output buffer */
saveoutbuf(svr,buff,n,i);
}
/* output solution to monitor port */
if (svr->moni) {
n=outsols(buff,&svr->rtk.sol,svr->rtk.rb,&solopt);
strwrite(svr->moni,buff,n);
}
/* save solution buffer */
if (svr->nsol<MAXSOLBUF) {
rtksvrlock(svr);
svr->solbuf[svr->nsol++]=svr->rtk.sol;
rtksvrunlock(svr);
}
}
/* update navigation data ----------------------------------------------------*/
static void updatenav(nav_t *nav)
{
int i,j;
for (i=0;i<MAXSAT;i++) for (j=0;j<NFREQ;j++) {
nav->lam[i][j]=satwavelen(i+1,j,nav);
}
}
/* update glonass frequency channel number in raw data struct ----------------*/
static void updatefcn(rtksvr_t *svr)
{
int i,j,sat,frq;
for (i=0;i<MAXPRNGLO;i++) {
sat=satno(SYS_GLO,i+1);
for (j=0,frq=-999;j<3;j++) {
if (svr->raw[j].nav.geph[i].sat!=sat) continue;
frq=svr->raw[j].nav.geph[i].frq;
}
if (frq<-7||frq>6) continue;
for (j=0;j<3;j++) {
if (svr->raw[j].nav.geph[i].sat==sat) continue;
svr->raw[j].nav.geph[i].sat=sat;
svr->raw[j].nav.geph[i].frq=frq;
}
}
}
/* update rtk server struct --------------------------------------------------*/
static void updatesvr(rtksvr_t *svr, int ret, obs_t *obs, nav_t *nav, int sat,
sbsmsg_t *sbsmsg, int index, int iobs)
{
eph_t *eph1,*eph2,*eph3;
geph_t *geph1,*geph2,*geph3;
gtime_t tof;
double pos[3],del[3]={0},dr[3];
int i,n=0,prn,sbssat=svr->rtk.opt.sbassatsel,sys,iode;
tracet(4,"updatesvr: ret=%d sat=%2d index=%d\n",ret,sat,index);
if (ret==1) { /* observation data */
if (iobs<MAXOBSBUF) {
for (i=0;i<obs->n;i++) {
if (svr->rtk.opt.exsats[obs->data[i].sat-1]==1||
!(satsys(obs->data[i].sat,NULL)&svr->rtk.opt.navsys)) continue;
svr->obs[index][iobs].data[n]=obs->data[i];
svr->obs[index][iobs].data[n++].rcv=index+1;
}
svr->obs[index][iobs].n=n;
sortobs(&svr->obs[index][iobs]);
}
svr->nmsg[index][0]++;
}
else if (ret==2) { /* ephemeris */
if (satsys(sat,&prn)!=SYS_GLO) {
if (!svr->navsel||svr->navsel==index+1) {
eph1=nav->eph+sat-1;
eph2=svr->nav.eph+sat-1;
eph3=svr->nav.eph+sat-1+MAXSAT;
if (eph2->ttr.time==0||
(eph1->iode!=eph3->iode&&eph1->iode!=eph2->iode)||
(timediff(eph1->toe,eph3->toe)!=0.0&&
timediff(eph1->toe,eph2->toe)!=0.0)) {
*eph3=*eph2;
*eph2=*eph1;
updatenav(&svr->nav);
}
}
svr->nmsg[index][1]++;
}
else {
if (!svr->navsel||svr->navsel==index+1) {
geph1=nav->geph+prn-1;
geph2=svr->nav.geph+prn-1;
geph3=svr->nav.geph+prn-1+MAXPRNGLO;
if (geph2->tof.time==0||
(geph1->iode!=geph3->iode&&geph1->iode!=geph2->iode)) {
*geph3=*geph2;
*geph2=*geph1;
updatenav(&svr->nav);
updatefcn(svr);
}
}
svr->nmsg[index][6]++;
}
}
else if (ret==3) { /* sbas message */
if (sbsmsg&&(sbssat==sbsmsg->prn||sbssat==0)) {
if (svr->nsbs<MAXSBSMSG) {
svr->sbsmsg[svr->nsbs++]=*sbsmsg;
}
else {
for (i=0;i<MAXSBSMSG-1;i++) svr->sbsmsg[i]=svr->sbsmsg[i+1];
svr->sbsmsg[i]=*sbsmsg;
}
sbsupdatecorr(sbsmsg,&svr->nav);
}
svr->nmsg[index][3]++;
}
else if (ret==9) { /* ion/utc parameters */
if (svr->navsel==0||svr->navsel==index+1) {
for (i=0;i<8;i++) svr->nav.ion_gps[i]=nav->ion_gps[i];
for (i=0;i<4;i++) svr->nav.utc_gps[i]=nav->utc_gps[i];
for (i=0;i<4;i++) svr->nav.ion_gal[i]=nav->ion_gal[i];
for (i=0;i<4;i++) svr->nav.utc_gal[i]=nav->utc_gal[i];
for (i=0;i<8;i++) svr->nav.ion_qzs[i]=nav->ion_qzs[i];
for (i=0;i<4;i++) svr->nav.utc_qzs[i]=nav->utc_qzs[i];
svr->nav.leaps=nav->leaps;
}
svr->nmsg[index][2]++;
}
else if (ret==5) { /* antenna postion parameters */
if (svr->rtk.opt.refpos==4&&index==1) {
for (i=0;i<3;i++) {
svr->rtk.rb[i]=svr->rtcm[1].sta.pos[i];
}
/* antenna delta */
ecef2pos(svr->rtk.rb,pos);
if (svr->rtcm[1].sta.deltype) { /* xyz */
del[2]=svr->rtcm[1].sta.hgt;
enu2ecef(pos,del,dr);
for (i=0;i<3;i++) {
svr->rtk.rb[i]+=svr->rtcm[1].sta.del[i]+dr[i];
}
}
else { /* enu */
enu2ecef(pos,svr->rtcm[1].sta.del,dr);
for (i=0;i<3;i++) {
svr->rtk.rb[i]+=dr[i];
}
}
}
svr->nmsg[index][4]++;
}
else if (ret==7) { /* dgps correction */
svr->nmsg[index][5]++;
}
else if (ret==10) { /* ssr message */
for (i=0;i<MAXSAT;i++) {
if (!svr->rtcm[index].ssr[i].update) continue;
/* check consistency between iods of orbit and clock */
if (svr->rtcm[index].ssr[i].iod[0]!=
svr->rtcm[index].ssr[i].iod[1]) continue;
svr->rtcm[index].ssr[i].update=0;
iode=svr->rtcm[index].ssr[i].iode;
sys=satsys(i+1,&prn);
/* check corresponding ephemeris exists */
if (sys==SYS_GPS||sys==SYS_GAL||sys==SYS_QZS) {
if (svr->nav.eph[i ].iode!=iode&&
svr->nav.eph[i+MAXSAT].iode!=iode) {
continue;
}
}
else if (sys==SYS_GLO) {
if (svr->nav.geph[prn-1 ].iode!=iode&&
svr->nav.geph[prn-1+MAXPRNGLO].iode!=iode) {
continue;
}
}
svr->nav.ssr[i]=svr->rtcm[index].ssr[i];
}
svr->nmsg[index][7]++;
}
else if (ret==31) { /* lex message */
lexupdatecorr(&svr->raw[index].lexmsg,&svr->nav,&tof);
svr->nmsg[index][8]++;
}
else if (ret==-1) { /* error */
svr->nmsg[index][9]++;
}
}
/* decode receiver raw/rtcm data ---------------------------------------------*/
static int decoderaw(rtksvr_t *svr, int index)
{
obs_t *obs;
nav_t *nav;
sbsmsg_t *sbsmsg=NULL;
int i,ret,sat,fobs=0;
tracet(4,"decoderaw: index=%d\n",index);
rtksvrlock(svr);
for (i=0;i<svr->nb[index];i++) {
/* input rtcm/receiver raw data from stream */
if (svr->format[index]==STRFMT_RTCM2) {
ret=input_rtcm2(svr->rtcm+index,svr->buff[index][i]);
obs=&svr->rtcm[index].obs;
nav=&svr->rtcm[index].nav;
sat=svr->rtcm[index].ephsat;
}
else if (svr->format[index]==STRFMT_RTCM3) {
ret=input_rtcm3(svr->rtcm+index,svr->buff[index][i]);
obs=&svr->rtcm[index].obs;
nav=&svr->rtcm[index].nav;
sat=svr->rtcm[index].ephsat;
}
else {
ret=input_raw(svr->raw+index,svr->format[index],svr->buff[index][i]);
obs=&svr->raw[index].obs;
nav=&svr->raw[index].nav;
sat=svr->raw[index].ephsat;
sbsmsg=&svr->raw[index].sbsmsg;
}
#if 0 /* record for receiving tick */
if (ret==1) {
trace(0,"%d %10d T=%s NS=%2d\n",index,tickget(),
time_str(obs->data[0].time,0),obs->n);
}
#endif
/* update rtk server */
if (ret>0) updatesvr(svr,ret,obs,nav,sat,sbsmsg,index,fobs);
/* observation data received */
if (ret==1) {
if (fobs<MAXOBSBUF) fobs++; else svr->prcout++;
}
}
svr->nb[index]=0;
rtksvrunlock(svr);
return fobs;
}
/* decode download file ------------------------------------------------------*/
static void decodefile(rtksvr_t *svr, int index)
{
nav_t nav={0};
char file[1024];
int nb;
tracet(4,"decodefile: index=%d\n",index);
rtksvrlock(svr);
/* check file path completed */
if ((nb=svr->nb[index])<=2||
svr->buff[index][nb-2]!='\r'||svr->buff[index][nb-1]!='\n') {
rtksvrunlock(svr);
return;
}
strncpy(file,(char *)svr->buff[index],nb-2); file[nb-2]='\0';
svr->nb[index]=0;
rtksvrunlock(svr);
if (svr->format[index]==STRFMT_SP3) { /* precise ephemeris */
/* read sp3 precise ephemeris */
readsp3(file,&nav,0);
if (nav.ne<=0) {
tracet(1,"sp3 file read error: %s\n",file);
return;
}
/* update precise ephemeris */
rtksvrlock(svr);
if (svr->nav.peph) free(svr->nav.peph);
svr->nav.ne=svr->nav.nemax=nav.ne;
svr->nav.peph=nav.peph;
svr->ftime[index]=utc2gpst(timeget());
strcpy(svr->files[index],file);
rtksvrunlock(svr);
}
else if (svr->format[index]==STRFMT_RNXCLK) { /* precise clock */
/* read rinex clock */
if (readrnxc(file,&nav)<=0) {
tracet(1,"rinex clock file read error: %s\n",file);
return;
}
/* update precise clock */
rtksvrlock(svr);
if (svr->nav.pclk) free(svr->nav.pclk);
svr->nav.nc=svr->nav.ncmax=nav.nc;
svr->nav.pclk=nav.pclk;
svr->ftime[index]=utc2gpst(timeget());
strcpy(svr->files[index],file);
rtksvrunlock(svr);
}
}
/* rtk server thread ---------------------------------------------------------*/
#ifdef WIN32
static DWORD WINAPI rtksvrthread(void *arg)
#else
static void *rtksvrthread(void *arg)
#endif
{
rtksvr_t *svr=(rtksvr_t *)arg;
obs_t obs;
obsd_t data[MAXOBS*2];
double tt;
unsigned int tick,ticknmea,tick1hz;
unsigned char *p,*q;
int i,j,n,fobs[3]={0},cycle,cputime;
tracet(3,"rtksvrthread:\n");
svr->state=1; obs.data=data;
svr->tick=tickget();
ticknmea=tick1hz=svr->tick-1000;
for (cycle=0;svr->state;cycle++) {
tick=tickget();
for (i=0;i<3;i++) {
p=svr->buff[i]+svr->nb[i]; q=svr->buff[i]+svr->buffsize;
/* read receiver raw/rtcm data from input stream */
if ((n=strread(svr->stream+i,p,q-p))<=0) {
continue;
}
/* write receiver raw/rtcm data to log stream */
strwrite(svr->stream+i+5,p,n);
svr->nb[i]+=n;
/* save peek buffer */
rtksvrlock(svr);
n=n<svr->buffsize-svr->npb[i]?n:svr->buffsize-svr->npb[i];
memcpy(svr->pbuf[i]+svr->npb[i],p,n);
svr->npb[i]+=n;
rtksvrunlock(svr);
}
for (i=0;i<3;i++) {
if (svr->format[i]==STRFMT_SP3||svr->format[i]==STRFMT_RNXCLK) {
/* decode download file */
decodefile(svr,i);
}
else {
/* decode receiver raw/rtcm data */
fobs[i]=decoderaw(svr,i);
}
}
for (i=0;i<fobs[0];i++) { /* for each rover observation data */
obs.n=0;
for (j=0;j<svr->obs[0][i].n&&obs.n<MAXOBS*2;j++) {
obs.data[obs.n++]=svr->obs[0][i].data[j];
}
for (j=0;j<svr->obs[1][0].n&&obs.n<MAXOBS*2;j++) {
obs.data[obs.n++]=svr->obs[1][0].data[j];
}
/* rtk positioning */
rtksvrlock(svr);
rtkpos(&svr->rtk,obs.data,obs.n,&svr->nav);
rtksvrunlock(svr);
if (svr->rtk.sol.stat!=SOLQ_NONE) {
/* adjust current time */
tt=(int)(tickget()-tick)/1000.0+DTTOL;
timeset(gpst2utc(timeadd(svr->rtk.sol.time,tt)));
/* write solution */
writesol(svr,i);
}
/* if cpu overload, inclement obs outage counter and break */
if ((int)(tickget()-tick)>=svr->cycle) {
svr->prcout+=fobs[0]-i-1;
#if 0 /* omitted v.2.4.1 */
break;
#endif
}
}
/* send null solution if no solution (1hz) */
if (svr->rtk.sol.stat==SOLQ_NONE&&(int)(tick-tick1hz)>=1000) {
writesol(svr,0);
tick1hz=tick;
}
/* send nmea request to base/nrtk input stream */
if (svr->nmeacycle>0&&(int)(tick-ticknmea)>=svr->nmeacycle) {
if (svr->stream[1].state==1) {
if (svr->nmeareq==1) {
strsendnmea(svr->stream+1,svr->nmeapos);
}
else if (svr->nmeareq==2&&norm(svr->rtk.sol.rr,3)>0.0) {
strsendnmea(svr->stream+1,svr->rtk.sol.rr);
}
}
ticknmea=tick;
}
if ((cputime=(int)(tickget()-tick))>0) svr->cputime=cputime;
/* sleep until next cycle */
sleepms(svr->cycle-cputime);
}
for (i=0;i<MAXSTRRTK;i++) strclose(svr->stream+i);
for (i=0;i<3;i++) {
svr->nb[i]=svr->npb[i]=0;
free(svr->buff[i]); svr->buff[i]=NULL;
free(svr->pbuf[i]); svr->pbuf[i]=NULL;
free_raw (svr->raw +i);
free_rtcm(svr->rtcm+i);
}
for (i=0;i<2;i++) {
svr->nsb[i]=0;
free(svr->sbuf[i]); svr->sbuf[i]=NULL;
}
return 0;
}
/* initialize rtk server -------------------------------------------------------
* initialize rtk server
* args : rtksvr_t *svr IO rtk server
* return : status (0:error,1:ok)
*-----------------------------------------------------------------------------*/
extern int rtksvrinit(rtksvr_t *svr)
{
gtime_t time0={0};
sol_t sol0 ={{0}};
eph_t eph0 ={0,-1,-1};
geph_t geph0={0,-1};
seph_t seph0={0};
int i,j;
tracet(3,"rtksvrinit:\n");
svr->state=svr->cycle=svr->nmeacycle=svr->nmeareq=0;
for (i=0;i<3;i++) svr->nmeapos[i]=0.0;
svr->buffsize=0;
for (i=0;i<3;i++) svr->format[i]=0;
for (i=0;i<2;i++) svr->solopt[i]=solopt_default;
svr->navsel=svr->nsbs=svr->nsol=0;
rtkinit(&svr->rtk,&prcopt_default);
for (i=0;i<3;i++) svr->nb[i]=0;
for (i=0;i<2;i++) svr->nsb[i]=0;
for (i=0;i<3;i++) svr->npb[i]=0;
for (i=0;i<3;i++) svr->buff[i]=NULL;
for (i=0;i<2;i++) svr->sbuf[i]=NULL;
for (i=0;i<3;i++) svr->pbuf[i]=NULL;
for (i=0;i<MAXSOLBUF;i++) svr->solbuf[i]=sol0;
for (i=0;i<3;i++) for (j=0;j<10;j++) svr->nmsg[i][j]=0;
for (i=0;i<3;i++) svr->ftime[i]=time0;
for (i=0;i<3;i++) svr->files[i][0]='\0';
svr->moni=NULL;
svr->tick=0;
svr->thread=0;
svr->cputime=svr->prcout=0;
if (!(svr->nav.eph =(eph_t *)malloc(sizeof(eph_t )*MAXSAT *2))||
!(svr->nav.geph=(geph_t *)malloc(sizeof(geph_t)*NSATGLO*2))||
!(svr->nav.seph=(seph_t *)malloc(sizeof(seph_t)*NSATSBS*2))) {
tracet(1,"rtksvrinit: malloc error\n");
return 0;
}
for (i=0;i<MAXSAT *2;i++) svr->nav.eph [i]=eph0;
for (i=0;i<NSATGLO*2;i++) svr->nav.geph[i]=geph0;
for (i=0;i<NSATSBS*2;i++) svr->nav.seph[i]=seph0;
svr->nav.n =MAXSAT *2;
svr->nav.ng=NSATGLO*2;
svr->nav.ns=NSATSBS*2;
for (i=0;i<3;i++) for (j=0;j<MAXOBSBUF;j++) {
if (!(svr->obs[i][j].data=(obsd_t *)malloc(sizeof(obsd_t)*MAXOBS))) {
tracet(1,"rtksvrinit: malloc error\n");
return 0;
}
}
for (i=0;i<3;i++) {
memset(svr->raw +i,0,sizeof(raw_t ));
memset(svr->rtcm+i,0,sizeof(rtcm_t));
}
for (i=0;i<MAXSTRRTK;i++) strinit(svr->stream+i);
initlock(&svr->lock);
return 1;
}
/* free rtk server -------------------------------------------------------------
* free rtk server
* args : rtksvr_t *svr IO rtk server
* return : none
*-----------------------------------------------------------------------------*/
extern void rtksvrfree(rtksvr_t *svr)
{
int i,j;
free(svr->nav.eph );
free(svr->nav.geph);
free(svr->nav.seph);
for (i=0;i<3;i++) for (j=0;j<MAXOBSBUF;j++) {
free(svr->obs[i][j].data);
}
rtkfree(&svr->rtk);
}
/* lock/unlock rtk server ------------------------------------------------------
* lock/unlock rtk server
* args : rtksvr_t *svr IO rtk server
* return : status (1:ok 0:error)
*-----------------------------------------------------------------------------*/
extern void rtksvrlock (rtksvr_t *svr) {lock (&svr->lock);}
extern void rtksvrunlock(rtksvr_t *svr) {unlock(&svr->lock);}
/* start rtk server ------------------------------------------------------------
* start rtk server thread
* args : rtksvr_t *svr IO rtk server
* int cycle I server cycle (ms)
* int buffsize I input buffer size (bytes)
* int *strs I stream types (STR_???)
* types[0]=input stream rover
* types[1]=input stream base station
* types[2]=input stream correction
* types[3]=output stream solution 1
* types[4]=output stream solution 2
* types[5]=log stream rover
* types[6]=log stream base station
* types[7]=log stream correction
* char *paths I input stream paths
* int *format I input stream formats (STRFMT_???)
* format[0]=input stream rover
* format[1]=input stream base station
* format[2]=input stream correction
* int navsel I navigation message select
* (0:rover,1:base,2:ephem,3:all)
* char **cmds I input stream start commands
* cmds[0]=input stream rover (NULL: no command)
* cmds[1]=input stream base (NULL: no command)
* cmds[2]=input stream corr (NULL: no command)
* char **rcvopts I receiver options
* rcvopt[0]=receiver option rover
* rcvopt[1]=receiver option base
* rcvopt[2]=receiver option corr
* int nmeacycle I nmea request cycle (ms) (0:no request)
* int nmeareq I nmea request type (0:no,1:base pos,2:single sol)
* double *nmeapos I transmitted nmea position (ecef) (m)
* prcopt_t *prcopt I rtk processing options
* solopt_t *solopt I solution options
* solopt[0]=solution 1 options
* solopt[1]=solution 2 options
* stream_t *moni I monitor stream (NULL: not used)
* return : status (1:ok 0:error)
*-----------------------------------------------------------------------------*/
extern int rtksvrstart(rtksvr_t *svr, int cycle, int buffsize, int *strs,
char **paths, int *formats, int navsel, char **cmds,
char **rcvopts, int nmeacycle, int nmeareq,
const double *nmeapos, prcopt_t *prcopt,
solopt_t *solopt, stream_t *moni)
{
gtime_t time,time0={0};
int i,j,rw;
tracet(3,"rtksvrstart: cycle=%d buffsize=%d navsel=%d nmeacycle=%d nmeareq=%d\n",
cycle,buffsize,navsel,nmeacycle,nmeareq);
if (svr->state) return 0;
strinitcom();
svr->cycle=cycle>1?cycle:1;
svr->nmeacycle=nmeacycle>1000?nmeacycle:1000;
svr->nmeareq=nmeareq;
for (i=0;i<3;i++) svr->nmeapos[i]=nmeapos[i];
svr->buffsize=buffsize>4096?buffsize:4096;
for (i=0;i<3;i++) svr->format[i]=formats[i];
svr->navsel=navsel;
svr->nsbs=0;
svr->nsol=0;
svr->prcout=0;
rtkfree(&svr->rtk);
rtkinit(&svr->rtk,prcopt);
for (i=0;i<3;i++) { /* input/log streams */
svr->nb[i]=svr->npb[i]=0;
if (!(svr->buff[i]=(unsigned char *)malloc(buffsize))||
!(svr->pbuf[i]=(unsigned char *)malloc(buffsize))) {
tracet(1,"rtksvrstart: malloc error\n");
return 0;
}
for (j=0;j<10;j++) svr->nmsg[i][j]=0;
for (j=0;j<MAXOBSBUF;j++) svr->obs[i][j].n=0;
/* initialize receiver raw and rtcm control */
init_raw (svr->raw +i);
init_rtcm(svr->rtcm+i);
/* set receiver and rtcm option */
strcpy(svr->raw [i].opt,rcvopts[i]);
strcpy(svr->rtcm[i].opt,rcvopts[i]);
/* connect dgps corrections */
svr->rtcm[i].dgps=svr->nav.dgps;
}
for (i=0;i<2;i++) { /* output peek buffer */
if (!(svr->sbuf[i]=(unsigned char *)malloc(buffsize))) {
tracet(1,"rtksvrstart: malloc error\n");
return 0;
}
}
/* set solution options */
for (i=0;i<2;i++) {
svr->solopt[i]=solopt[i];
}
/* set base station position */
for (i=0;i<6;i++) {
svr->rtk.rb[i]=i<3?prcopt->rb[i]:0.0;
}
/* update navigation data */
for (i=0;i<MAXSAT *2;i++) svr->nav.eph [i].ttr=time0;
for (i=0;i<NSATGLO*2;i++) svr->nav.geph[i].tof=time0;
for (i=0;i<NSATSBS*2;i++) svr->nav.seph[i].tof=time0;
updatenav(&svr->nav);
/* set monitor stream */
svr->moni=moni;
/* open input streams */
for (i=0;i<8;i++) {
rw=i<3?STR_MODE_R:STR_MODE_W;
if (strs[i]!=STR_FILE) rw|=STR_MODE_W;
if (!stropen(svr->stream+i,strs[i],rw,paths[i])) {
for (i--;i>=0;i--) strclose(svr->stream+i);
return 0;
}
/* set initial time for rtcm and raw */
if (i<3) {
time=utc2gpst(timeget());
svr->raw [i].time=strs[i]==STR_FILE?strgettime(svr->stream+i):time;
svr->rtcm[i].time=strs[i]==STR_FILE?strgettime(svr->stream+i):time;
}
}
/* sync input streams */
strsync(svr->stream,svr->stream+1);
strsync(svr->stream,svr->stream+2);
/* write start commands to input streams */
for (i=0;i<3;i++) {
if (cmds[i]) strsendcmd(svr->stream+i,cmds[i]);
}
/* write solution header to solution streams */
for (i=3;i<5;i++) {
writesolhead(svr->stream+i,svr->solopt+i-3);
}
/* create rtk server thread */
#ifdef WIN32
if (!(svr->thread=CreateThread(NULL,0,rtksvrthread,svr,0,NULL))) {
#else
if (pthread_create(&svr->thread,NULL,rtksvrthread,svr)) {
#endif
for (i=0;i<MAXSTRRTK;i++) strclose(svr->stream+i);
return 0;
}
return 1;
}
/* stop rtk server -------------------------------------------------------------
* start rtk server thread
* args : rtksvr_t *svr IO rtk server
* char **cmds I input stream stop commands
* cmds[0]=input stream rover (NULL: no command)
* cmds[1]=input stream base (NULL: no command)
* cmds[2]=input stream ephem (NULL: no command)
* return : none
*-----------------------------------------------------------------------------*/
extern void rtksvrstop(rtksvr_t *svr, char **cmds)
{
int i;
tracet(3,"rtksvrstop:\n");
/* write stop commands to input streams */
rtksvrlock(svr);
for (i=0;i<3;i++) {
if (cmds[i]) strsendcmd(svr->stream+i,cmds[i]);
}
rtksvrunlock(svr);
/* stop rtk server */
svr->state=0;
/* free rtk server thread */
#ifdef WIN32
WaitForSingleObject(svr->thread,10000);
CloseHandle(svr->thread);
#else
pthread_join(svr->thread,NULL);
#endif
}
/* open output/log stream ------------------------------------------------------
* open output/log stream
* args : rtksvr_t *svr IO rtk server
* int index I output/log stream index
* (3:solution 1,4:solution 2,5:log rover,
* 6:log base station,7:log correction)
* int str I output/log stream types (STR_???)
* char *path I output/log stream path
* solopt_t *solopt I solution options
* return : status (1:ok 0:error)
*-----------------------------------------------------------------------------*/
extern int rtksvropenstr(rtksvr_t *svr, int index, int str, const char *path,
const solopt_t *solopt)
{
tracet(3,"rtksvropenstr: index=%d str=%d path=%s\n",index,str,path);
if (index<3||index>7||!svr->state) return 0;
rtksvrlock(svr);
if (svr->stream[index].state>0) {
rtksvrunlock(svr);
return 0;
}
if (!stropen(svr->stream+index,str,STR_MODE_W,path)) {
tracet(2,"stream open error: index=%d\n",index);
rtksvrunlock(svr);
return 0;
}
if (index<=4) {
svr->solopt[index-3]=*solopt;
/* write solution header to solution stream */
writesolhead(svr->stream+index,svr->solopt+index-3);
}
rtksvrunlock(svr);
return 1;
}
/* close output/log stream -----------------------------------------------------
* close output/log stream
* args : rtksvr_t *svr IO rtk server
* int index I output/log stream index
* (3:solution 1,4:solution 2,5:log rover,
* 6:log base station,7:log correction)
* return : none
*-----------------------------------------------------------------------------*/
extern void rtksvrclosestr(rtksvr_t *svr, int index)
{
tracet(3,"rtksvrclosestr: index=%d\n",index);
if (index<3||index>7||!svr->state) return;
rtksvrlock(svr);
strclose(svr->stream+index);
rtksvrunlock(svr);
}
/* get observation data status -------------------------------------------------
* get current observation data status
* args : rtksvr_t *svr I rtk server
* int rcv I receiver (0:rover,1:base,2:ephem)
* gtime_t *time O time of observation data
* int *sat O satellite prn numbers
* double *az O satellite azimuth angles (rad)
* double *el O satellite elevation angles (rad)
* int **snr O satellite snr for each freq (dBHz)
* snr[i][j] = sat i freq j snr
* int *vsat O valid satellite flag
* return : number of satellites
*-----------------------------------------------------------------------------*/
extern int rtksvrostat(rtksvr_t *svr, int rcv, gtime_t *time, int *sat,
double *az, double *el, int **snr, int *vsat)
{
int i,j,ns;
tracet(4,"rtksvrostat: rcv=%d\n",rcv);
if (!svr->state) return 0;
rtksvrlock(svr);
ns=svr->obs[rcv][0].n;
if (ns>0) {
*time=svr->obs[rcv][0].data[0].time;
}
for (i=0;i<ns;i++) {
sat [i]=svr->obs[rcv][0].data[i].sat;
az [i]=svr->rtk.ssat[sat[i]-1].azel[0];
el [i]=svr->rtk.ssat[sat[i]-1].azel[1];
for (j=0;j<NFREQ;j++) {
snr[i][j]=(int)(svr->obs[rcv][0].data[i].SNR[j]*0.25);
}
if (svr->rtk.sol.stat==SOLQ_NONE||svr->rtk.sol.stat==SOLQ_SINGLE) {
vsat[i]=svr->rtk.ssat[sat[i]-1].vs;
}
else {
vsat[i]=svr->rtk.ssat[sat[i]-1].vsat[0];
}
}
rtksvrunlock(svr);
return ns;
}
/* get stream status -----------------------------------------------------------
* get current stream status
* args : rtksvr_t *svr I rtk server
* int *sstat O status of streams
* char *msg O status messages
* return : none
*-----------------------------------------------------------------------------*/
extern void rtksvrsstat(rtksvr_t *svr, int *sstat, char *msg)
{
int i;
char s[MAXSTRMSG],*p=msg;
tracet(4,"rtksvrsstat:\n");
rtksvrlock(svr);
for (i=0;i<MAXSTRRTK;i++) {
sstat[i]=strstat(svr->stream+i,s);
if (*s) p+=sprintf(p,"(%d) %s ",i+1,s);
}
rtksvrunlock(svr);
}