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Port write-region-inhibit-sync, allowing avoidance of bad FS performance. See http://shaver.off.net/diary/2008/05/25/fsyncers-and-curveballs/ for more details. 2008-08-09 Aidan Kehoe <kehoea@parhasard.net> Integrate Romain Francoise' 2005-09-14 (pre-GPLV3) GNU change, which can allow much better performace with some stupid filesystems: * fileio.c (write_region_inhibit_fsync): New variable. (Fwrite_region): Use it to skip call to fsync. (syms_of_fileio): Initialize it.
author Aidan Kehoe <kehoea@parhasard.net>
date Sat, 09 Aug 2008 16:44:46 +0200
parents e04119814345
children
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/* Synched up with: FSF 19.31. */

#include "sunos4-1.h"

#if 0
/* XEmacs: FSF 19.31 removes this.  Let's just comment it out. */
/* TERMIOS is broken under SunOS??

   Someone says: This causes failure in process_send_signal (tcgetattr
   loses) and may also cause hanging at Emacs startup when parent is
   not a job control shell.  */
/* murray@chemical-eng.edinburgh.ac.uk says this works, and avoids
   the problem of spurious ^M in subprocess output.  */
#undef HAVE_TERMIOS
#endif

#if 0
/* XEmacs: FSF 19.31 mistakenly reenables this. */
/* jik@gza.com says this works now.  */
/* The bug that corrupts GNU malloc's memory pool is fixed in SunOS 4.1.3. */

#undef SYSTEM_MALLOC
#endif /* 0 */

/* barrie@calvin.demon.co.uk says memmove is missing.  */
#ifndef SYSTEM_MALLOC
#define MEMMOVE_MISSING
#endif

/* A reliable source says this is broken through SunOS 4.1.3 */
/* but not SunOS 4.1.4 */
#ifdef BROKEN_SIGIO
#undef BROKEN_SIGIO
#endif