WSJT-X/lib/jt9a.f90
2020-03-19 15:53:44 -04:00

95 lines
2.6 KiB
Fortran

subroutine jt9a()
use, intrinsic :: iso_c_binding, only: c_f_pointer, c_null_char, c_bool
use prog_args
use timer_module, only: timer
use timer_impl, only: init_timer !, limtrace
use shmem
include 'jt9com.f90'
integer*2 id2a(180000)
! Multiple instances:
type(dec_data), pointer, volatile :: shared_data !also makes target volatile
type(params_block) :: local_params
logical(c_bool) :: ok
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
call shmem_setkey(trim(shm_key)//c_null_char)
ok=shmem_attach()
if(.not.ok) call abort
msdelay=30
call c_f_pointer(shmem_address(),shared_data)
! Terminate if ipc(2) is 999
10 ok=shmem_lock()
if(.not.ok) call abort
if(shared_data%ipc(2).eq.999.0) then
ok=shmem_unlock()
ok=shmem_detach()
go to 999
endif
! Wait here until GUI has set ipc(2) to 1
if(shared_data%ipc(2).ne.1) then
ok=shmem_unlock()
if(.not.ok) call abort
call sleep_msec(msdelay)
go to 10
endif
shared_data%ipc(2)=0
nbytes=shmem_size()
if(nbytes.le.0) then
ok=shmem_unlock()
ok=shmem_detach()
print*,'jt9a: Shared memory does not exist.'
print*,"Must start 'jt9 -s <thekey>' from within WSJT-X."
go to 999
endif
local_params=shared_data%params !save a copy because wsjtx carries on accessing
ok=shmem_unlock()
if(.not.ok) call abort
call flush(6)
call timer('decoder ',0)
if(local_params%nmode.eq.8 .and. local_params%ndiskdat) then
! Early decoding pass, FT8 only, when wsjtx reads from disk
nearly=41
local_params%nzhsym=nearly
id2a(1:nearly*3456)=shared_data%id2(1:nearly*3456)
id2a(nearly*3456+1:)=0
call multimode_decoder(shared_data%ss,id2a,local_params,12000)
nearly=47
local_params%nzhsym=nearly
id2a(1:nearly*3456)=shared_data%id2(1:nearly*3456)
id2a(nearly*3456+1:)=0
call multimode_decoder(shared_data%ss,id2a,local_params,12000)
local_params%nzhsym=50
endif
! Normal decoding pass
call multimode_decoder(shared_data%ss,shared_data%id2,local_params,12000)
call timer('decoder ',1)
! Wait here until GUI routine decodeDone() has set ipc(3) to 1
100 ok=shmem_lock()
if(.not.ok) call abort
if(shared_data%ipc(3).ne.1) then
ok=shmem_unlock()
if(.not.ok) call abort
call sleep_msec(msdelay)
go to 100
endif
shared_data%ipc(3)=0
ok=shmem_unlock()
if(.not.ok) call abort
go to 10
999 call timer('decoder ',101)
return
end subroutine jt9a