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| author | Paul Eggert <eggert@cs.ucla.edu> | 2013-03-13 11:42:22 -0700 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2013-03-13 11:42:22 -0700 |
| commit | 47d7532e093db8a5068a40c587915121ffaaad18 (patch) | |
| tree | a99ea6eca34ea0e9c8d6e8a8d6291833ce27dca5 /m4/fsync.m4 | |
| parent | c7ffccaf17d63cefd34bef0a9becc4e68df3b115 (diff) | |
File synchronization fixes.
* admin/CPP-DEFINES (BSD_SYSTEM, HAVE_FSYNC): Remove.
* admin/merge-gnulib (GNULIB_MODULES): Add fsync, fdatasync.
* configure.ac (BSD_SYSTEM, BSD_SYSTEM_AHB): Remove; no longer needed.
(fsync): Remove check; now done by gnulib.
* lib/fdatasync.c, lib/fsync.c, m4/fdatasync.m4, m4/fsync.m4:
New files, from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* lib-src/Makefile.in (LIB_FDATASYNC): New macro.
(emacsclient${EXEEXT}): Use it.
* lib-src/emacsclient.c (main): Use fdatasync, not fsync, since we don't
care about metadata. Keep trying if interrupted.
* lib-src/movemail.c (main, popmail): Don't worry about BSD_SYSTEM, since
fsync is available everywhere (or there is a substitute). Don't
report an error if fsync returns EINVAL.
* nt/inc/ms-w32.h (fdatasync): New macro, suggested by Eli Zaretskii.
* src/Makefile.in (LIB_FDATASYNC): New macro.
(LIBES): Use it.
* src/conf_post.h (BSD_SYSTEM, BSD_SYSTEM_AHB): Remove; no longer needed.
* src/fileio.c (Fwrite_region, write_region_inhibit_fsync):
Don't worry about HAVE_FSYNC, since a substitute fsync is
available if the system lacks one.
(Fwrite_regin): Retry fsync if interrupted.
Fixes: debbugs:13944
Diffstat (limited to 'm4/fsync.m4')
| -rw-r--r-- | m4/fsync.m4 | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/m4/fsync.m4 b/m4/fsync.m4 new file mode 100644 index 0000000000..43f51528d6 --- /dev/null +++ b/m4/fsync.m4 @@ -0,0 +1,17 @@ +# fsync.m4 serial 2 +dnl Copyright (C) 2008-2013 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_FSYNC], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_CHECK_FUNCS_ONCE([fsync]) + if test $ac_cv_func_fsync = no; then + HAVE_FSYNC=0 + fi +]) + +# Prerequisites of lib/fsync.c. +AC_DEFUN([gl_PREREQ_FSYNC], [:]) |