WSJT-X/lib/jt9a.f90
Bill Somerville 5b43b691f3 Restructuring in preparation for direct decoder invocation from wsjtx
Re-factor the JT4, JT65 and JT9 decoders as Fortran modules using type
bound  procedures, the  decoder types  implement a  callback procedure
such that he client of the decoder can interpret the decode results as
they need.

The JT4 decoder has a  second callback that delivers message averaging
status.  Also the  previously separate  source files  lib/jt4a.f90 and
lib/avg4.f90 have been merged  into lib/jt4_decode.f90 as private type
bound procedures of the new jt4_decoder type.

Re-factored the lib/decoder.f90 subroutine  to utilize the new decoder
types. Added local procedures to process decodes and averaging results
including the necessary OpenMP synchronization directives for parallel
JT9+JT65 decoding.

Added the  jt65_test module  which is  a basic  test harness  for JT65
decoding. Re-factored  the jt65 utility  to utilize the  new jt65_test
module.

Changed a  few integers  to logical variables  where their  meaning is
clearly binary.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6324 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2015-12-29 23:52:55 +00:00

76 lines
2.0 KiB
Fortran

subroutine jt9a()
use, intrinsic :: iso_c_binding, only: c_f_pointer
use prog_args
use timer_module, only: timer
use timer_impl, only: init_timer !, limtrace
include 'jt9com.f90'
! These routines connect the shared memory region to the decoder.
interface
function address_jt9()
use, intrinsic :: iso_c_binding, only: c_ptr
type(c_ptr) :: address_jt9
end function address_jt9
end interface
integer*1 attach_jt9
! integer*1 lock_jt9,unlock_jt9
integer size_jt9
! Multiple instances:
character*80 mykey
type(dec_data), pointer :: shared_data
type(params_block) :: local_params
logical fileExists
! Multiple instances:
i0 = len(trim(shm_key))
call init_timer (trim(data_dir)//'/timer.out')
! open(23,file=trim(data_dir)//'/CALL3.TXT',status='unknown')
! limtrace=-1 !Disable all calls to timer()
! Multiple instances: set the shared memory key before attaching
mykey=trim(repeat(shm_key,1))
i0 = len(mykey)
i0=setkey_jt9(trim(mykey))
i1=attach_jt9()
10 inquire(file=trim(temp_dir)//'/.lock',exist=fileExists)
if(fileExists) then
call sleep_msec(100)
go to 10
endif
inquire(file=trim(temp_dir)//'/.quit',exist=fileExists)
if(fileExists) then
i1=detach_jt9()
go to 999
endif
if(i1.eq.999999) stop !Silence compiler warning
nbytes=size_jt9()
if(nbytes.le.0) then
print*,'jt9a: Shared memory mem_jt9 does not exist.'
print*,"Must start 'jt9 -s <thekey>' from within WSJT-X."
go to 999
endif
call c_f_pointer(address_jt9(),shared_data)
local_params=shared_data%params !save a copy because wsjtx carries on accessing
call flush(6)
call timer('decoder ',0)
call multimode_decoder(shared_data%ss,shared_data%id2,local_params,12000)
call timer('decoder ',1)
100 inquire(file=trim(temp_dir)//'/.lock',exist=fileExists)
if(fileExists) go to 10
call sleep_msec(100)
go to 100
999 call timer('decoder ',101)
return
end subroutine jt9a