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/_wfwrite.c | 75 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 libc/stdio/_wfwrite.c (limited to 'libc/stdio/_wfwrite.c') diff --git a/libc/stdio/_wfwrite.c b/libc/stdio/_wfwrite.c new file mode 100644 index 000000000..8f9469162 --- /dev/null +++ b/libc/stdio/_wfwrite.c @@ -0,0 +1,75 @@ +/* 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 + +#ifndef __UCLIBC_HAS_WCHAR__ +#error wide function when no wide support! +#endif + +#ifdef __UCLIBC_MJN3_ONLY__ +#warning TODO: Fix prototype. +#endif +extern size_t __wcsnrtombs(char *__restrict dst, + const wchar_t **__restrict src, + size_t NWC, size_t len, mbstate_t *__restrict ps); + +size_t _wstdio_fwrite(const wchar_t *__restrict ws, size_t n, + register FILE *__restrict stream) +{ + size_t r, count; + char buf[64]; + const wchar_t *pw; + + __STDIO_STREAM_VALIDATE(stream); + +#ifdef __STDIO_BUFFERS + if (__STDIO_STREAM_IS_FAKE_VSWPRINTF(stream)) { + /* We know buffer is wchar aligned for fake streams. */ + count = (((wchar_t *)(stream->__bufend)) + - ((wchar_t *)(stream->__bufpos))); + if (count > n) { + count = n; + } + if (count) { + wmemcpy((wchar_t *)(stream->__bufpos), ws, count); + stream->__bufpos = (char *)(((wchar_t *)(stream->__bufpos)) + count); + } + __STDIO_STREAM_VALIDATE(stream); + return n; + } +#endif + + count = 0; + + if (__STDIO_STREAM_IS_WIDE_WRITING(stream) + || !__STDIO_STREAM_TRANS_TO_WRITE(stream, __FLAG_WIDE) + ) { + + pw = ws; + while (n > count) { + r = __wcsnrtombs(buf, &pw, n-count, sizeof(buf), &stream->__state); + if (r != ((size_t) -1)) { /* No encoding errors */ + if (!r) { + ++r; /* 0 is returned when nul is reached. */ + pw = ws + count + r; /* pw was set to NULL, so correct. */ + } + if (__stdio_fwrite(buf, r, stream) == r) { + count = pw - ws; + continue; + } + } + break; + } + + /* Note: The count is incorrect if 0 < __stdio_fwrite return < r!!! */ + } + + __STDIO_STREAM_VALIDATE(stream); + return count; +} -- cgit v1.2.3