path: root/include
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authorache <>2015-11-08 13:37:16 +0000
committerache <>2015-11-08 13:37:16 +0000
commit8a3e4a6db71e690b2b8bf5f3372f4f99a506fdd7 (patch)
tree20f498bd623fab85c76c978a69e059c9bda125d0 /include
parent1df83ba3d3bc30d9297c344788b7ce3dbe3eb69b (diff)
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')
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 */
@@ -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
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