2b4c906561
2018-08-21 Nicolas Koenig <koenigni@gcc.gnu.org> Thomas Koenig <tkoenig@gcc.gnu.org> PR fortran/25829 * gfortran.texi: Add description of asynchronous I/O. * trans-decl.c (gfc_finish_var_decl): Treat asynchronous variables as volatile. * trans-io.c (gfc_build_io_library_fndecls): Rename st_wait to st_wait_async and change argument spec from ".X" to ".w". (gfc_trans_wait): Pass ID argument via reference. 2018-08-21 Nicolas Koenig <koenigni@gcc.gnu.org> Thomas Koenig <tkoenig@gcc.gnu.org> PR fortran/25829 * gfortran.dg/f2003_inquire_1.f03: Add write statement. * gfortran.dg/f2003_io_1.f03: Add wait statement. 2018-08-21 Nicolas Koenig <koenigni@gcc.gnu.org> Thomas Koenig <tkoenig@gcc.gnu.org> PR fortran/25829 * Makefile.am: Add async.c to gfor_io_src. Add async.h to gfor_io_headers. * Makefile.in: Regenerated. * gfortran.map: Add _gfortran_st_wait_async. * io/async.c: New file. * io/async.h: New file. * io/close.c: Include async.h. (st_close): Call async_wait for an asynchronous unit. * io/file_pos.c (st_backspace): Likewise. (st_endfile): Likewise. (st_rewind): Likewise. (st_flush): Likewise. * io/inquire.c: Add handling for asynchronous PENDING and ID arguments. * io/io.h (st_parameter_dt): Add async bit. (st_parameter_wait): Correct. (gfc_unit): Add au pointer. (st_wait_async): Add prototype. (transfer_array_inner): Likewise. (st_write_done_worker): Likewise. * io/open.c: Include async.h. (new_unit): Initialize asynchronous unit. * io/transfer.c (async_opt): New struct. (wrap_scalar_transfer): New function. (transfer_integer): Call wrap_scalar_transfer to do the work. (transfer_real): Likewise. (transfer_real_write): Likewise. (transfer_character): Likewise. (transfer_character_wide): Likewise. (transfer_complex): Likewise. (transfer_array_inner): New function. (transfer_array): Call transfer_array_inner. (transfer_derived): Call wrap_scalar_transfer. (data_transfer_init): Check for asynchronous I/O. Perform a wait operation on any pending asynchronous I/O if the data transfer is synchronous. Copy PDT and enqueue thread for data transfer. (st_read_done_worker): New function. (st_read_done): Enqueue transfer or call st_read_done_worker. (st_write_done_worker): New function. (st_write_done): Enqueue transfer or call st_read_done_worker. (st_wait): Document as no-op for compatibility reasons. (st_wait_async): New function. * io/unit.c (insert_unit): Use macros LOCK, UNLOCK and TRYLOCK; add NOTE where necessary. (get_gfc_unit): Likewise. (init_units): Likewise. (close_unit_1): Likewise. Call async_close if asynchronous. (close_unit): Use macros LOCK and UNLOCK. (finish_last_advance_record): Likewise. (newunit_alloc): Likewise. * io/unix.c (find_file): Likewise. (flush_all_units_1): Likewise. (flush_all_units): Likewise. * libgfortran.h (generate_error_common): Add prototype. * runtime/error.c: Include io.h and async.h. (generate_error_common): New function. 2018-08-21 Nicolas Koenig <koenigni@gcc.gnu.org> Thomas Koenig <tkoenig@gcc.gnu.org> PR fortran/25829 * testsuite/libgomp.fortran/async_io_1.f90: New test. * testsuite/libgomp.fortran/async_io_2.f90: New test. * testsuite/libgomp.fortran/async_io_3.f90: New test. * testsuite/libgomp.fortran/async_io_4.f90: New test. * testsuite/libgomp.fortran/async_io_5.f90: New test. * testsuite/libgomp.fortran/async_io_6.f90: New test. * testsuite/libgomp.fortran/async_io_7.f90: New test. Co-Authored-By: Thomas Koenig <tkoenig@gcc.gnu.org> From-SVN: r263750
49 lines
1.4 KiB
Fortran
49 lines
1.4 KiB
Fortran
! { dg-do run }
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!TODO: Move these testcases to gfortran testsuite
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! once compilation with pthreads is supported there
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! Check basic functionality of async I/O
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program main
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implicit none
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integer:: i=1, j=2, k, l
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real :: a, b, c, d
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character(3), parameter:: yes="yes"
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character(4) :: str
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complex :: cc, dd
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integer, dimension(4):: is = [0, 1, 2, 3]
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integer, dimension(4):: res
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character(10) :: inq
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open (10, file='a.dat', asynchronous=yes)
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cc = (1.5, 0.5)
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inquire (10,asynchronous=inq)
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if (inq /= "YES") stop 1
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write (10,*,asynchronous=yes) 4, 3
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write (10,*,asynchronous=yes) 2, 1
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write (10,*,asynchronous=yes) 1.0, 3.0
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write (10,'(A)', asynchronous=yes) 'asdf'
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write (10,*, asynchronous=yes) cc
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close (10)
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open (20, file='a.dat', asynchronous=yes)
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read (20, *, asynchronous=yes) i, j
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read (20, *, asynchronous=yes) k, l
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read (20, *, asynchronous=yes) a, b
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read (20,'(A4)',asynchronous=yes) str
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read (20,*, asynchronous=yes) dd
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wait (20)
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if (i /= 4 .or. j /= 3) stop 2
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if (k /= 2 .or. l /= 1) stop 3
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if (a /= 1.0 .or. b /= 3.0) stop 4
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if (str /= 'asdf') stop 5
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if (cc /= dd) stop 6
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close (20,status="delete")
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open(10, file='c.dat', asynchronous=yes)
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write(10, *, asynchronous=yes) is
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close(10)
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open(20, file='c.dat', asynchronous=yes)
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read(20, *, asynchronous=yes) res
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wait (20)
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if (any(res /= is)) stop 7
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close (20,status="delete")
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end program
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