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| author | ache <ache@FreeBSD.org> | 2015-10-24 02:23:15 +0000 |
|---|---|---|
| committer | ache <ache@FreeBSD.org> | 2015-10-24 02:23:15 +0000 |
| commit | d6852ac6f1dfc1396dee130993f8686cf53f5d2c (patch) | |
| tree | c8f96d268fae59791f07df0c9f770053554f1f6a /lib/libc/stdio/fdopen.c | |
| parent | 9901e2ee18d8dffc84891f9ec0e7de37518bb95f (diff) | |
| download | FreeBSD-src-d6852ac6f1dfc1396dee130993f8686cf53f5d2c.zip FreeBSD-src-d6852ac6f1dfc1396dee130993f8686cf53f5d2c.tar.gz | |
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().
MFC after: 3 weeks
Diffstat (limited to 'lib/libc/stdio/fdopen.c')
| -rw-r--r-- | lib/libc/stdio/fdopen.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/libc/stdio/fdopen.c b/lib/libc/stdio/fdopen.c index b936998..8bd9c2d 100644 --- a/lib/libc/stdio/fdopen.c +++ b/lib/libc/stdio/fdopen.c @@ -91,7 +91,10 @@ fdopen(int fd, const char *mode) * O_APPEND bit set, assert __SAPP so that __swrite() caller * will _sseek() to the end before write. */ - if ((oflags & O_APPEND) && !(fdflags & O_APPEND)) + /* XXX: Reuse __SALC for O_APPEND. */ + if (fdflags & O_APPEND) + fp->_flags |= __SALC; + else if (oflags & O_APPEND) fp->_flags |= __SAPP; fp->_file = fd; fp->_cookie = fp; |
