diff options
author | Manuel Novoa III <mjn3@codepoet.org> | 2004-02-11 23:48:50 +0000 |
---|---|---|
committer | Manuel Novoa III <mjn3@codepoet.org> | 2004-02-11 23:48:50 +0000 |
commit | 082e680bd54e999f2bb4eb77141958938b1e9ee9 (patch) | |
tree | 203c45b85ca608e1550d8ffc459456fc9cf0b30b /libc/stdio/fgetws.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/fgetws.c')
-rw-r--r-- | libc/stdio/fgetws.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/libc/stdio/fgetws.c b/libc/stdio/fgetws.c new file mode 100644 index 000000000..ec8547e25 --- /dev/null +++ b/libc/stdio/fgetws.c @@ -0,0 +1,61 @@ +/* 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" + +extern wchar_t *__fgetws_unlocked(wchar_t *__restrict ws, int n, + FILE *__restrict stream); + +#ifdef __DO_UNLOCKED + +weak_alias(__fgetws_unlocked,fgetws_unlocked); +#ifndef __UCLIBC_HAS_THREADS__ +weak_alias(__fgetws_unlocked,fgetws); +#endif + +wchar_t *__fgetws_unlocked(wchar_t *__restrict ws, int n, + FILE *__restrict stream) +{ + register wchar_t *p = ws; + wint_t wi; + + __STDIO_STREAM_VALIDATE(stream); + + while ((n > 1) + && ((wi = __fgetwc_unlocked(stream)) != WEOF) + && ((*p++ = wi) != '\n') + ) { + --n; + } + if (p == ws) { + /* TODO -- should we set errno? */ +/* if (n <= 0) { */ +/* errno = EINVAL; */ +/* } */ + return NULL; + } + *p = 0; + return ws; +} + +#elif defined __UCLIBC_HAS_THREADS__ + +wchar_t *fgetws(wchar_t *__restrict ws, int n, FILE *__restrict stream) +{ + wchar_t *retval; + __STDIO_AUTO_THREADLOCK_VAR; + + __STDIO_AUTO_THREADLOCK(stream); + + retval = __fgetws_unlocked(ws, n, stream); + + __STDIO_AUTO_THREADUNLOCK(stream); + + return retval; +} + +#endif |