Many POSIX systems have the bad habit of not restarting interrupted
syscalls. On these systems it's up to the user to check for an error
with errno == EINTR and restart manually. This patch does this for
libgfortran, so that GFortran users don't have to do it.
2016-10-09 Janne Blomqvist <jb@gcc.gnu.org>
PR libfortran/67585
* io/io.h: TEMP_FAILURE_RETRY: Define macro if not found.
* io/unix.c (raw_read): Handle EINTR.
(raw_write): Check for return value -1.
(raw_seek): Handle EINTR.
(raw_tell): Likewise.
(raw_size): Likewise.
(raw_truncate): Likewise.
(raw_close): Likewise.
(buf_flush): Call raw_seek instead of lseek.
(buf_read): Likewise.
(buf_write): Likewise.
(fd_to_stream): Handle EINTR.
(tempfile_open): Likewise.
(regular_file2): Likewise.
(compare_file_filename): Likewise.
(find_file): Likewise.
(inquire_sequential): Likewise.
(inquire_direct): Likewise.
(inquire_formatted): Likewise.
From-SVN: r240902
2016-08-31 Paul Thomas <pault@gcc.gnu.org>
Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR fortran/48298
* decl.c (access_attr_decl): Include case INTERFACE_DTIO as
appropriate.
* gfortran.h : Add INTRINSIC_FORMATTED and
INTRINSIC_UNFORMATTED to gfc_intrinsic_op. Add INTERFACE_DTIO
to interface type. Add new enum 'dtio_codes'. Add bitfield
'has_dtio_procs' to symbol_attr. Add prototypes
'gfc_check_dtio_interfaces' and 'gfc_find_specific_dtio_proc'.
* interface.c (dtio_op): New function.
(gfc_match_generic_spec): Match generic DTIO interfaces.
(gfc_match_interface): Treat DTIO interfaces in the same way as
(gfc_current_interface_head): Add INTERFACE_DTIO appropriately.
(check_dtio_arg_TKR_intent): New function.
(check_dtio_interface1): New function.
(gfc_check_dtio_interfaces): New function.
(gfc_find_specific_dtio_proc): New function.
* io.c : Add FMT_DT to format_token.
(format_lex): Handle DTIO formatting.
* match.c (gfc_op2string): Add DTIO operators.
* resolve.c (derived_inaccessible): Ignore pointer components
to enclosing derived type.
(resolve_transfer): Resolve transfers that involve DTIO.
procedures. Find the specific subroutine for the transfer and
use its existence to over-ride some of the constraints on
derived types. If the transfer is recursive, require that the
subroutine be so qualified.
(dtio_procs_present): New function.
(resolve_fl_namelist): Remove inhibition of polymorphic objects
in namelists if DTIO read and write subroutines exist. Likewise
for derived types.
(resolve_types): Invoke 'gfc_verify_dtio_procedures'.
* symbol.c : Set 'dtio_procs' using 'minit'.
* trans-decl.c (gfc_finish_var_decl): If a derived-type/class
object is associated with DTIO procedures, make it TREE_STATIC.
* trans-expr.c (gfc_get_vptr_from_expr): If the expression
drills down to a PARM_DECL, extract the vptr correctly.
(gfc_conv_derived_to_class): Check 'info' in the test for
'useflags'. If the se expression exists and is a pointer, use
it as the class _data.
* trans-io.c : Add IOCALL_X_DERIVED to iocall and the function
prototype. Likewise for IOCALL_SET_NML_DTIO_VAL.
(set_parameter_tree): Renamed from 'set_parameter_const', now
returns void and has new tree argument. Calls modified to match
new interface.
(transfer_namelist_element): Transfer DTIO procedure pointer
and vpointer using the new function IOCALL_SET_NML_DTIO_VAL.
(get_dtio_proc): New function.
(transfer_expr): Add new argument for the vptr field of class
objects. Add the code to call the specific DTIO proc, convert
derived types to class and call IOCALL_X_DERIVED.
(trans_transfer): Add BT_CLASS to structures for treatment by
the scalarizer. Obtain the vptr for the dynamic type, both for
scalar and array transfer.
2016-08-31 Jerry DeLisle <jvdelisle@gcc.gnu.org>
Paul Thomas <pault@gcc.gnu.org>
PR libgfortran/48298
* gfortran.map : Flag _st_set_nml_dtio_var and
_gfortran_transfer_derived.
* io/format.c (format_lex): Detect DTIO formatting.
(parse_format_list): Parse the DTIO format.
(next_format): Include FMT_DT.
* io/format.h : Likewise. Add structure 'udf' to structure
'fnode' to carry the IOTYPE string and the 'vlist'.
* io/io.h : Add prototypes for the two types of DTIO subroutine
and a typedef for gfc_class. Also, add to 'namelist_type'
fields for the pointer to the DTIO procedure and the vtable.
Add fields to struct st_parameter_dt for pointers to the two
types of DTIO subroutine. Add to gfc_unit DTIO specific fields.
(internal_proto): Add prototype for 'read_user_defined' and
'write_user_defined'.
* io/list_read.c (check_buffers): Use the 'current_unit' field.
(unget_char): Likewise.
(eat_spaces): Likewise.
(list_formatted_read_scalar): For case BT_CLASS, call the DTIO
procedure.
(nml_get_obj_data): Likewise when DTIO procedure is present,.
* io/transfer.c : Export prototypes for 'transfer_derived' and
'transfer_derived_write'.
(unformatted_read): For case BT_CLASS, call the DTIO procedure.
(unformatted_write): Likewise.
(formatted_transfer_scalar_read): Likewise.
(formatted_transfer_scalar_write: Likewise.
(transfer_derived): New function.
(data_transfer_init): Set last_char if no child_dtio.
(finalize_transfer): Return if child_dtio set.
(st_write_done): Add condition for child_dtio not set.
Add extra arguments for st_set_nml_var prototype.
(set_nml_var): New function that contains the contents of the
old version of st_set_nml_var. Also sets the 'dtio_sub' and
'vtable' fields of the 'nml' structure.
(st_set_nml_var): Now just calls set_nml_var with 'dtio_sub'
and 'vtable' NULL.
(st_set_nml_dtio_var): New function that calls set_nml_var.
* io/unit.c (get_external_unit): If the found unit child_dtio
is non zero, don't do any mutex locking/unlocking. Just
return the unit.
* io/unix.c (tempfile_open): Revert to C style comment.
* io/write.c (list_formatted_write_scalar): Do the DTIO call.
(nml_write_obj): Add BT_CLASS and do the DTIO call.
2016-08-31 Jerry DeLisle <jvdelisle@gcc.gnu.org>
Paul Thomas <pault@gcc.gnu.org>
PR fortran/48298
* gfortran.dg/dtio_1.f90: New test.
* gfortran.dg/dtio_2.f90: New test.
* gfortran.dg/dtio_3.f90: New test.
* gfortran.dg/dtio_4.f90: New test.
* gfortran.dg/dtio_5.f90: New test.
* gfortran.dg/dtio_6.f90: New test.
* gfortran.dg/dtio_7.f90: New test.
* gfortran.dg/dtio_8.f90: New test.
* gfortran.dg/dtio_9.f90: New test.
* gfortran.dg/dtio_10.f90: New test.
From-SVN: r239880
2015-08-29 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libgfortran/67367
* io/unix.c (buf_read): Check for error condition and if found
return the error code.
From-SVN: r227320
2015-07-14 Janne Blomqvist <jb@gcc.gnu.org>
PR libfortran/66861
* io/unix.c (compare_file_filename): Verify that u->filename is
non-NULL before strcmp.
(find_file0): Likewise.
From-SVN: r225788
2014-06-28 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libgfortran/61640
* io/list_read.c (next_char_internal): Adjust the read length to
a single wide character. (eat_spaces): Add missing paren.
* io/unix.c (mem_read4): Use the correct mem_alloc function for
wide character internal reads.
From-SVN: r212118
2014-05-16 Janne Blomqvist <jb@gcc.gnu.org>
PR libfortran/61187
* io/unix.c (raw_close): Check if s->fd is -1.
(fd_to_stream): Check return value of fstat(), handle error.
From-SVN: r210527
2013-11-15 Janne Blomqvist <jb@gcc.gnu.org>
Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR fortran/59108
* io/unix.c (regular_file): Don't set O_CREAT when opening a file
read-only with unknown status. Mask out O_CREAT when falling back
to opening read-only if ACTION= is not set and read-write fails.
Co-Authored-By: Jerry DeLisle <jvdelisle@gcc.gnu.org>
From-SVN: r204864
2013-11-10 Janne Blomqvist <jb@gcc.gnu.org>
* configure.ac: Check presence of mkostemp.
* io/unix.c (set_close_on_exec): New function.
(tempfile_open): Use mkostemp and O_CLOEXEC if available, fallback
to calling set_close_on_exec.
(regular_file): Add O_CLOEXEC to flags if defined.
(open_external): Call set_close_on_exec if O_CLOEXEC is not
defined.
* config.h.in: Regenerated.
* configure: Regenerated.
* Makefile.in: Regenerated.
* aclocal.m4: Regenerated.
From-SVN: r204654
2012-12-21 Thomas Koenig <tkoenig@gcc.gnu.org>
PR libfortran/30162
* io/unix.c (raw_tell): If the lseek is done on a
non-seekable file, return 0.
From-SVN: r194679
2012-05-05 Janne Blomqvist <jb@gcc.gnu.org>
* gfortran.texi (GFORTRAN_TMPDIR): Rename to TMPDIR, explain
algorithm for choosing temp directory.
2012-05-05 Janne Blomqvist <jb@gcc.gnu.org>
* config.h.in: Regenerated.
* configure: Regenerated.
* configure.ac: Add checks for getegid and __secure_getenv.
* io/unix.c (P_tmpdir): Fallback definition for macro.
(tempfile_open): New function.
(tempfile): Use secure_getenv, call tempfile_open to try each
directory in turn.
* libgfortran.h (DEFAULT_TMPDIR): Remove macro.
(secure_getenv): New macro/prototype.
* runtime/environ.c (secure_getenv): New function.
(variable_table): Rename GFORTRAN_TMPDIR to TMPDIR.
* runtime/main.c (find_addr2line): Use secure_getenv.
From-SVN: r187190
2012-04-15 Thomas Koenig <tkoenig@gcc.gnu.org>
PR libfortran/38199
PR libfortran/50673
* intrinsics/string_intriniscs_inc.c (string_len_trim):
Remove prototypes for string_len_trim and move to...
* libgfortran.h (string_len_trim): ... here and
(string_len_trim_char4): ...here.
* io/unit.c: For non-array internal arrays where we do reading,
adjust the record length to the last non-blank character.
* io/unix.c: Fix typo.
From-SVN: r186466
frontend ChangeLog:
2011-11-09 Janne Blomqvist <jb@gcc.gnu.org>
PR libfortran/50016
* gfortran.texi (Data consistency and durability): New section.
testsuite ChangeLog:
2011-11-09 Janne Blomqvist <jb@gcc.gnu.org>
PR libfortran/50016
* gfortran.dg/inquire_size.f90: Don't flush the unit.
libgfortran ChangeLog:
2011-11-09 Janne Blomqvist <jb@gcc.gnu.org>
PR libfortran/50016
* io/inquire.c (inquire_via_unit): Flush the unit and use ssize.
* io/unix.c (buf_flush): Don't call _commit.
From-SVN: r181207
2011-10-31 Janne Blomqvist <jb@gcc.gnu.org>
* io/file_pos.c (st_rewind): Handle regular and special files
identically.
* io/intrinsics.c (fseek_sub): Don't check whether we think the
file is seekable, just do what the caller says.
* io/transfer.c (skip_record): First try to seek, then fallback to
reading and throwing away what we read.
* io/unit.c (update_position): Don't check whether file is
seekable, just try to do what we're told.
(unit_truncate): Likewise.
* io/unix.c (struct unix_stream): Remove special_file flag.
(buf_flush): Remove code for handling unseekable files.
(buf_seek): Likewise.
(fd_to_stream): Use buffered IO only for regular files.
(file_length): Remove is_seekable() call.
(is_seekable): Remove function.
(is_special): Likewise.
* io/unix.h: Remove prototypes for is_seekable and is_special.
From-SVN: r180701
Change "if (E) free (E);" to "free (E);" everywhere except in the
libgo/, intl/, zlib/ and classpath/ directories.
Also transform equivalent variants like
"if (E != NULL) free (E);" and allow an extra cast on the
argument to free. Otherwise, the tested and freed "E"
expressions must be identical, modulo white space.
From-SVN: r172785
