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/__fsetlocking.c | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 libc/stdio/__fsetlocking.c (limited to 'libc/stdio/__fsetlocking.c') diff --git a/libc/stdio/__fsetlocking.c b/libc/stdio/__fsetlocking.c new file mode 100644 index 000000000..f49503207 --- /dev/null +++ b/libc/stdio/__fsetlocking.c @@ -0,0 +1,45 @@ +/* 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" +#include + +/* Not threadsafe. */ + +/* Notes: + * When setting the locking mode, glibc returns the previous setting. + * glibc treats invalid locking_mode args as FSETLOCKING_INTERNAL. + */ + +int __fsetlocking(FILE *stream, int locking_mode) +{ +#ifdef __UCLIBC_HAS_THREADS__ + int current = 1 + (stream->__user_locking & 1); + + /* Check constant assumptions. We can't test at build time + * since these are enums. */ + assert((FSETLOCKING_QUERY == 0) && (FSETLOCKING_INTERNAL == 1) + && (FSETLOCKING_BYCALLER == 2)); + + __STDIO_STREAM_VALIDATE(stream); + assert(((unsigned int) locking_mode) <= 2); + + if (locking_mode != FSETLOCKING_QUERY) { + stream->__user_locking = ((locking_mode == FSETLOCKING_BYCALLER) + ? 1 + : _stdio_user_locking); /* 0 or 2 */ + __STDIO_STREAM_VALIDATE(stream); + } + + return current; +#else + __STDIO_STREAM_VALIDATE(stream); + assert(((unsigned int) locking_mode) <= 2); + + return FSETLOCKING_INTERNAL; +#endif +} -- cgit v1.2.3