• Paul Eggert's avatar
    File synchronization fixes. · 47d7532e
    Paul Eggert authored
    * 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
    47d7532e
fsync.c 2.22 KB