WSJT-X/plrs.f90

108 lines
2.7 KiB
Fortran
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program plrs
! Pseudo-Linrad "Send" program. Reads recorded Linrad data from "*.tf2"
! files, and multicasts it as Linrad would do for timf2 data.
integer RMODE
parameter(RMODE=0)
parameter (NBPP=1392)
parameter (NZ=60*96000)
parameter (NBYTES=8*NZ)
parameter (NPPR=NBYTES/NBPP)
integer*1 userx_no,iusb
integer*2 nblock
real*8 d(NZ),buf8
integer fd
integer open,read,close
integer nm(11)
character*8 fname,arg,cjunk*1
logical fast,pause
real*8 center_freq,dmsec,dtmspacket,tmsec
common/plrscom/center_freq,msec2,fsample,iptr,nblock,userx_no,iusb,buf8(174)
data nm/45,46,48,50,52,54,55,56,57,58,59/
data nblock/0/,fast/.false./,pause/.false./
nargs=iargc()
if(nargs.ne.4) then
print*,'Usage: plrs <fast|pause|slow> <minutes> <iters> <iwait>'
go to 999
endif
call getarg(1,arg)
if(arg(1:1).eq.'f' .or. arg(1:1).eq.'p') fast=.true.
if(arg(1:1).eq.'p') pause=.true.
call getarg(2,arg)
read(arg,*) nfiles
call getarg(3,arg)
read(arg,*) iters
call getarg(4,arg)
read(arg,*) iwait
if(iwait.ne.0) then
1 if(mod(int(sec_midn()),60).eq.0) go to 2
call sleep_msec(100)
go to 1
endif
2 fname="all.tf2"//char(0)
userx_no=0
iusb=1
center_freq=144.125d0
dtmspacket=1000.d0*NBPP/(8.d0*96000.d0)
fsample=96000.0
npkt=0
call setup_ssocket !Open a socket for multicasting
do iter=1,iters
fd=open(fname,RMODE) !Open file for reading
dmsec=-dtmspacket
nsec0=sec_midn()
do ifile=1,nfiles
ns0=0
tmsec=1000*(3600*7 + 60*nm(ifile))-dtmspacket
nr=read(fd,d,NBYTES)
if(nr.ne.NBYTES) then
print*,'Error reading file all.tf2'
go to 999
endif
k=0
do ipacket=1,NPPR
dmsec=dmsec+dtmspacket
tmsec=tmsec+dtmspacket
msec2=nint(tmsec)
msec=nint(dmsec)
do i=1,NBPP/8
k=k+1
buf8(i)=d(k)
enddo
nblock=nblock+1
call send_pkt(center_freq)
npkt=npkt+1
if(mod(npkt,100).eq.0) then
nsec=int(sec_midn())-nsec0
nwait=msec-1000*nsec
! Pace the data at close to its real-time rate
if(nwait.gt.0 .and. .not.fast) call usleep(nwait*1000)
endif
ns=mod(msec2/1000,60)
if(ns.ne.ns0) write(*,1010) ns,center_freq,0.001*msec2,sec_midn()
1010 format('ns:',i3,' f0:',f10.3,' t1:',f10.3,' t2:',f10.3)
ns0=ns
enddo
if(pause) then
print*,'Type anything to continue:'
read(*,*) cjunk,pause,fast
endif
enddo
i=close(fd)
enddo
999 end program plrs
! To compile: % gfortran -o plrs plrs.f90 plrs_subs.c cutil.c