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f416a52def
Groundwork for calling the decoders directly from C/C++ threads. To access the timer module timer_module must now be used. Instrumented code need only use the module function 'timer' which is now a procedure pointer that is guaranteed to be associated (unless null() is assigned to it, which should not be done). The default behaviour of 'timer' is to do nothing. If a Fortran program wishes to profile code it should now use the timer_impl module which contains a default timer implementation. The main program should call 'init_timer([filename])' before using 'timer' or calling routines that are instrumented. If 'init_timer([filename])'. If it is called then an optional file name may be provided with 'timer.out' being used as a default. The procedure 'fini_timer()' may be called to close the file. The default timer implementation is thread safe if used with OpenMP multi-threaded code so long as the OpenMP thread team is given the copyin(/timer_private/) attribute for correct operation. The common block /timer_private/ should be included for OpenMP use by including the file 'timer_common.inc'. The module 'lib/timer_C_wrapper.f90' provides a Fortran wrapper along with 'init' and 'fini' subroutines which allow a C/C++ application to call timer instrumented Fortran code and for it to receive callbacks of 'timer()' subroutine invocations. No C/C++ timer implementation is provided at this stage. git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6320 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
76 lines
2.0 KiB
Fortran
76 lines
2.0 KiB
Fortran
subroutine jt9a()
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use, intrinsic :: iso_c_binding, only: c_f_pointer
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use prog_args
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use timer_module, only: timer
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use timer_impl, only: init_timer !, limtrace
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include 'jt9com.f90'
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! These routines connect the shared memory region to the decoder.
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interface
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function address_jt9()
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use, intrinsic :: iso_c_binding, only: c_ptr
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type(c_ptr) :: address_jt9
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end function address_jt9
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end interface
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integer*1 attach_jt9
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! integer*1 lock_jt9,unlock_jt9
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integer size_jt9
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! Multiple instances:
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character*80 mykey
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type(dec_data), pointer :: shared_data
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type(params_block) :: local_params
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logical fileExists
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! Multiple instances:
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i0 = len(trim(shm_key))
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call init_timer (trim(data_dir)//'/timer.out')
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! open(23,file=trim(data_dir)//'/CALL3.TXT',status='unknown')
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! limtrace=-1 !Disable all calls to timer()
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! Multiple instances: set the shared memory key before attaching
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mykey=trim(repeat(shm_key,1))
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i0 = len(mykey)
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i0=setkey_jt9(trim(mykey))
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i1=attach_jt9()
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10 inquire(file=trim(temp_dir)//'/.lock',exist=fileExists)
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if(fileExists) then
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call sleep_msec(100)
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go to 10
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endif
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inquire(file=trim(temp_dir)//'/.quit',exist=fileExists)
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if(fileExists) then
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i1=detach_jt9()
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go to 999
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endif
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if(i1.eq.999999) stop !Silence compiler warning
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nbytes=size_jt9()
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if(nbytes.le.0) then
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print*,'jt9a: Shared memory mem_jt9 does not exist.'
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print*,"Must start 'jt9 -s <thekey>' from within WSJT-X."
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go to 999
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endif
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call c_f_pointer(address_jt9(),shared_data)
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local_params=shared_data%params !save a copy because wsjtx carries on accessing
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call flush(6)
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call timer('decoder ',0)
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call decoder(shared_data%ss,shared_data%id2,local_params,12000)
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call timer('decoder ',1)
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100 inquire(file=trim(temp_dir)//'/.lock',exist=fileExists)
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if(fileExists) go to 10
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call sleep_msec(100)
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go to 100
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999 call timer('decoder ',101)
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return
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end subroutine jt9a
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