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view src/s/mach-bsd4-3.h @ 4499:eb82259f265d
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 | 3ecd8885ac67 |
children | c90385e49231 |
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/* Synched up with: FSF 19.31. */ /* I don't care if this doesn't do more than including bsd4-3.h; Mach is not bsd4-3 and the moment you forget it chances are that you're in deep shit. */ #include "bsd4-3.h" /* The rest of this stuff is XEmacs additions. */ /* SYSTEM_TYPE should indicate the kind of system you are using. It sets the Lisp variable system-type. */ #undef SYSTEM_TYPE #define SYSTEM_TYPE "mach" /* Don't send signals to subprocesses by "typing" special chars at them. */ #undef SIGNALS_VIA_CHARACTERS /* XEmacs change */ /* unistd.h defines _POSIX_VERSION, which leads some things to believe that _POSIX_PATH_MAX should be defined. Unfortunately, it isn't. */ #ifndef NOT_C_CODE #include <sys/param.h> #define _POSIX_PATH_MAX MAXPATHLEN #endif #ifndef NOT_C_CODE typedef int pid_t; /* XEmacs change */ typedef unsigned short mode_t; #endif /* NOT_C_CODE */ #if (defined(i386) || defined(ibmrt)) /* use drem() instead of fmod() -- this is a BUG in the compiler runtime. */ # define USE_DREM #endif