From 082e680bd54e999f2bb4eb77141958938b1e9ee9 Mon Sep 17 00:00:00 2001 From: Manuel Novoa III Date: Wed, 11 Feb 2004 23:48:50 +0000 Subject: New stdio core. Should be more maintainable. Fixes a couple of bugs. Codepaths streamlined. Improved performance for nonthreaded apps when linked with a thread-enabled libc. Minor iconv bug and some locale/thread related startup issues fixed. These showed up in getting a gcj-compiled java helloworld app running. Removed some old extension functions... _stdio_fdout and _stdio_fsfopen. --- libc/stdio/fwide.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 libc/stdio/fwide.c (limited to 'libc/stdio/fwide.c') diff --git a/libc/stdio/fwide.c b/libc/stdio/fwide.c new file mode 100644 index 000000000..422d789f3 --- /dev/null +++ b/libc/stdio/fwide.c @@ -0,0 +1,32 @@ +/* Copyright (C) 2004 Manuel Novoa III + * + * GNU Library General Public License (LGPL) version 2 or later. + * + * Dedicated to Toni. See uClibc/DEDICATION.mjn3 for details. + */ + +#include "_stdio.h" + +/* TODO: According to SUSv3 should return EBADF if invalid stream. */ + +int fwide(register FILE *stream, int mode) +{ + __STDIO_AUTO_THREADLOCK_VAR; + + __STDIO_AUTO_THREADLOCK(stream); + + __STDIO_STREAM_VALIDATE(stream); + + if (mode && !(stream->__modeflags & (__FLAG_WIDE|__FLAG_NARROW))) { + stream->__modeflags |= ((mode > 0) ? __FLAG_WIDE : __FLAG_NARROW); + } + + mode = (stream->__modeflags & __FLAG_WIDE) + - (stream->__modeflags & __FLAG_NARROW); + + assert((stream->__modeflags & (__FLAG_WIDE|__FLAG_NARROW)) + != (__FLAG_WIDE|__FLAG_NARROW)); + __STDIO_AUTO_THREADUNLOCK(stream); + + return mode; +} -- cgit v1.2.3