diff options
author | Manuel Novoa III <mjn3@codepoet.org> | 2004-02-11 23:48:50 +0000 |
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committer | Manuel Novoa III <mjn3@codepoet.org> | 2004-02-11 23:48:50 +0000 |
commit | 082e680bd54e999f2bb4eb77141958938b1e9ee9 (patch) | |
tree | 203c45b85ca608e1550d8ffc459456fc9cf0b30b /libc/stdio/fileno.c | |
parent | 17c21765b4a97c6f0b74ba8466073e5a3f97cdee (diff) |
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.
Diffstat (limited to 'libc/stdio/fileno.c')
-rw-r--r-- | libc/stdio/fileno.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/libc/stdio/fileno.c b/libc/stdio/fileno.c new file mode 100644 index 000000000..fbfa66551 --- /dev/null +++ b/libc/stdio/fileno.c @@ -0,0 +1,45 @@ +/* Copyright (C) 2004 Manuel Novoa III <mjn3@codepoet.org> + * + * GNU Library General Public License (LGPL) version 2 or later. + * + * Dedicated to Toni. See uClibc/DEDICATION.mjn3 for details. + */ + +#include "_stdio.h" + +#ifdef __DO_UNLOCKED + +weak_alias(__fileno_unlocked,fileno_unlocked); +#ifndef __UCLIBC_HAS_THREADS__ +weak_alias(__fileno_unlocked,fileno); +#endif + +int __fileno_unlocked(register FILE *stream) +{ + __STDIO_STREAM_VALIDATE(stream); + + if ((!__STDIO_STREAM_IS_CUSTOM(stream)) && (stream->__filedes >= 0)) { + return stream->__filedes; + } + + __set_errno(EBADF); + return -1; +} + +#elif defined __UCLIBC_HAS_THREADS__ + +int fileno(register FILE *stream) +{ + int retval; + __STDIO_AUTO_THREADLOCK_VAR; + + __STDIO_AUTO_THREADLOCK(stream); + + retval = __fileno_unlocked(stream); + + __STDIO_AUTO_THREADUNLOCK(stream); + + return retval; +} + +#endif |