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author | ache <ache@FreeBSD.org> | 2015-11-08 13:37:16 +0000 |
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committer | ache <ache@FreeBSD.org> | 2015-11-08 13:37:16 +0000 |
commit | 8a3e4a6db71e690b2b8bf5f3372f4f99a506fdd7 (patch) | |
tree | 20f498bd623fab85c76c978a69e059c9bda125d0 /include | |
parent | 1df83ba3d3bc30d9297c344788b7ce3dbe3eb69b (diff) | |
download | FreeBSD-src-8a3e4a6db71e690b2b8bf5f3372f4f99a506fdd7.zip FreeBSD-src-8a3e4a6db71e690b2b8bf5f3372f4f99a506fdd7.tar.gz |
MFC: r289863,r289931,r290110,r290230,r290231,r290232
r290232:
Microoptimize.
r290231:
Addition to prev. commit.
In some edge cases fp->_p can be changed in _sseek(), recalculate.
r290230:
Don't seek to the end if write buffer is empty (in append modes).
PR: 204156
r290110:
Add _flags2 per jhb@ suggestion since no room left in _flags.
Rewrite O_APPEND flag checking using new __S2OAP flag.
r289931:
According to POSIX, a write operation shall start at the current size of
the stream (if mode had 'a' as the first character).
r289863:
Since no room left in the _flags, reuse __SALC for O_APPEND.
It helps to remove _fcntl() call from _ftello() and optimize seek position
calculation in _swrite().
Diffstat (limited to 'include')
-rw-r--r-- | include/stdio.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/stdio.h b/include/stdio.h index 6d7916a..d37ea06 100644 --- a/include/stdio.h +++ b/include/stdio.h @@ -144,6 +144,7 @@ struct __sFILE { int _fl_count; /* recursive lock count */ int _orientation; /* orientation for fwide() */ __mbstate_t _mbstate; /* multibyte conversion state */ + int _flags2; /* additional flags */ }; #ifndef _STDFILE_DECLARED #define _STDFILE_DECLARED @@ -176,6 +177,8 @@ __END_DECLS #define __SALC 0x4000 /* allocate string space dynamically */ #define __SIGN 0x8000 /* ignore this file in _fwalk */ +#define __S2OAP 0x0001 /* O_APPEND mode is set */ + /* * The following three definitions are for ANSI C, which took them * from System V, which brilliantly took internal interface macros and |