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authorUlrich Drepper <drepper@redhat.com>1999-06-16 22:55:47 +0000
committerUlrich Drepper <drepper@redhat.com>1999-06-16 22:55:47 +0000
commitd64b6ad07585b8a37e5fecc9a47fcee766d52ede (patch)
tree076b36cc9c1b82254348212e75939d842885563a /libio/wfileops.c
parentbc938d3de936a8e429b16237180c046139be8247 (diff)
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Update.
* Versions.def: Add GLIBC_2.2 for libc. * iconv/gconv.h: Make header suitable for inclusion in public header by protecting all names with __. * iconv/gconv.c: Adapt for symbol name changes. * iconv/gconv.h: Likewise. * iconv/gconv_builtin.c: Likewise. * iconv/gconv_close.c: Likewise. * iconv/gconv_db.c: Likewise. * iconv/gconv_dl.c: Likewise. * iconv/gconv_int.h: Likewise. * iconv/gconv_open.c: Likewise. * iconv/gconv_simple.c: Likewise. * iconv/iconv.c: Likewise. * iconv/iconv_close.c: Likewise. * iconv/iconv_open.c: Likewise. * iconv/loop.c: Likewise. * iconv/skeleton.c: Likewise. * iconvdata/8bit-gap.c: Likewise. * iconvdata/8bit-generic.c: Likewise. * iconvdata/ansi_x3.110.c: Likewise. * iconvdata/big5.c: Likewise. * iconvdata/cns11643.h: Likewise. * iconvdata/cns11643l1.h: Likewise. * iconvdata/euc-cn.c: Likewise. * iconvdata/euc-jp.c: Likewise. * iconvdata/euc-kr.c: Likewise. * iconvdata/euc-tw.c: Likewise. * iconvdata/gb2312.h: Likewise. * iconvdata/iso-2022-jp.c: Likewise. * iconvdata/iso-2022-kr.c: Likewise. * iconvdata/iso646.c: Likewise. * iconvdata/iso8859-1.c: Likewise. * iconvdata/iso_6937-2.c: Likewise. * iconvdata/iso_6937.c: Likewise. * iconvdata/jis0201.h: Likewise. * iconvdata/jis0208.h: Likewise. * iconvdata/jis0212.h: Likewise. * iconvdata/johab.c: Likewise. * iconvdata/ksc5601.h: Likewise. * iconvdata/sjis.c: Likewise. * iconvdata/t.61.c: Likewise. * iconvdata/uhc.c: Likewise. * stdlib/mblen.c: Likewise. * stdlib/mbtowc.c: Likewise. * stdlib/wctomb.c: Likewise. * wcsmbs/btowc.c: Likewise. * wcsmbs/mbrtowc.c: Likewise. * wcsmbs/mbsnrtowcs.c: Likewise. * wcsmbs/mbsrtowcs.c: Likewise. * wcsmbs/wchar.h: Likewise. * wcsmbs/wcrtomb.c: Likewise. * wcsmbs/wcsmbsload.c: Likewise. * wcsmbs/wcsmbsload.h: Likewise. * wcsmbs/wcsnrtombs.c: Likewise. * wcsmbs/wcsrtombs.c: Likewise. * wcsmbs/wctob.c: Likewise. * include/limits.h (MB_LEN_MAX): Increase to 16. * sysdeps/generic/_G_config.h: Define _G_fpos_t as struct. Define _G_iconv_t. * sysdeps/unix/sysv/linux/_G_config.h: Likewise. * include/wchar.h: Change mbstate_t to __mbstate_t. * libio/Makefile (routines): Add wfiledoalloc, oldiofgetpos, oldiofgetpos64, oldiofsetpos, oldiofsetpos64, fputwc, fputwc_u, getwc, getwc_u, getwchar, getwchar_u, iofgetws, iofgetws_u, iofputws, iofputws_u, iogetwline, iowpadn, ioungetwc, putwc, putwc_u, putchar, putchar_u, swprintf, vwprintf, wprintf, wscanf, fwscanf, vwscanf, vswprintf, iovswscanf, swscanf, wgenops, wstrops, wfileops, and iofwide. (tests): Add tst_swprintf, tst_wprintf, tst_swscanf, and tst_wscanf. * libio/Versions: Add _IO_fgetpos, _IO_fgetpos64, _IO_fsetpos, _IO_fsetpos64, fgetpos, fgetpos64, fgetwc, fgetwc_unlocked, fgetws, fgetws_unlocked, fputwc, fputwc_unlocked, fputws, fputws_unlocked, fsetpos, fsetpos64, fwide, fwprintf, fwscanf, getwc, getwc_unlocked, getwchar, getwchar_unlocked, putwc, putwc_unlocked, putwchar, putwchar_unlocked, swprintf, swscanf, ungetwc, vfwprintf, vswprintf, vwprintf, vfwscanf, vswscanf, vwscanf, wprintf, and wscanf to GLIBC_2.2 for libc. * libio/libio.h: Define codecvt struct. Define _IO_wide_data. Extend _IO_file contain pointer to codecvt, widedata and mode. (_IO_getwc_unlocked): New macro. (_IO_putwc_unlocked): New macro. (_IO_fwide): New macro. * libio/libioP.h: Add new prototypes and adjust existing declarations. * libio/fileops.c (_IO_new_file_close_it): Reset normal or widedata buffers based on mode. (new_do_write): Set _IO_write_end to _IO_buf_end if stream is wide oriented. (_IO_new_file_overflow): Don't depend only on _IO_CURRENTLY_PUTTING flag to be enough to signal unallocated buffer. For wide oriented stream don't make it linebuffered. Don't use _IO_do_flush, use _IO_new_do_write directly. (_IO_new_file_seekoff): Change return value type to _IO_off64_t. (_IO_file_seek): Likewise. * libio/genops.c (_IO_least_marker): Make global. (__underflow): Orient stream if not already done. (__uflow): Likewise. (_IO_default_seekpos): Change to type _IO_off64_t. (_IO_default_seekoff): Likewise. (_IO_default_seek): Likewise. (_IO_no_init): New function. Similar to _IO_init but allows to orient in initialization. * libio/iolibio.h: Add prototype for _IO_vswprintf. Change _IO_pos_BAD to use _IO_off64_t. * libio/ftello.c: Use _IO_off_t. For now abort when use with wide char stream. * libio/ftello64.c: Likewise. * libio/ioftell.c: Likewise. * libio/iofopncook.c: Likewise. * libio/ioseekoff.c: Likewise. * libio/ioseekpos.c: Likewise. * libio/oldfileops.c: Likewise. * libio/iofgetpos.c: Store state of conversion if necessary. * libio/iofgetpos64.c: Likewise. * libio/iofsetpos.c: Restore conversion state if necessary. * libio/iofsetpos64.c: Likewise. * libio/iofdopen.c: Initialize so that stream can be wide oriented. * libio/iofopen.c: Likewise. * libio/iofopen64.c: Likewise. * libio/iopopen.c: Likewise. * libio/iovdprintf.c: Likewise. * libio/iovsprintf.c: Likewise. * libio/iovsscanf.c: Likewise. * libio/memstream.c: Likewise. * libio/obprintf.c: Likewise. * libio/iofputs.c: Orient stream if not already happened. * libio/iofputs_u.c: Likewise. * libio/iofwrite.c: Likewise. * libio/iofwrite_u.c: Likewise. * libio/ioputs.c: Likewise. * libio/iosetbuffer.c: Handle not yet oriented stream. * libio/iosetvbuf.c: Likewise. * libio/oldstdfiles.c: Adjust FILEBUF_LITERAL call. * libio/stdfiles.c: Likewise. * libio/strops.c (_IO_str_overflow): Correctly free buffer after failed allocation. (_IO_str_seekoff): Use _IO_off64_t. * libio/vasprintf.c: Pre-orient stream. * libio/vsnprintf.c: Likewise. * libio/fputwc.c: New file. * libio/fputwc_u.c: New file. * libio/fwprintf.c: New file. * libio/fwscanf.c: New file. * libio/getwc.c: New file. * libio/getwc_u.c: New file. * libio/getwchar.c: New file. * libio/getwchar_u.c: New file. * libio/iofgetws.c: New file. * libio/iofgetws_u.c: New file. * libio/iofputws.c: New file. * libio/iofputws_u.c: New file. * libio/iofwide.c: New file. * libio/iogetwline.c: New file. * libio/ioungetwc.c: New file. * libio/iovswscanf.c: New file. * libio/iowpadn.c: New file. * libio/oldiofgetpos.c: New file. * libio/oldiofgetpos64.c: New file. * libio/oldiofsetpos.c: New file. * libio/oldiofsetpos64.c: New file. * libio/putwc.c: New file. * libio/putwc_u.c: New file. * libio/putwchar.c: New file. * libio/putwchar_u.c: New file. * libio/swprintf.c: New file. * libio/swscanf.c: New file. * libio/tst_swprintf.c: New file. * libio/tst_swscanf.c: New file. * libio/tst_wprintf.c: New file. * libio/tst_wscanf.c: New file. * libio/tst_wscanf.input: New file. * libio/vswprintf.c: New file. * libio/vwprintf.c: New file. * libio/vwscanf.c: New file. * libio/wfiledoalloc.c: New file. * libio/wfileops.c: New file. * libio/wgenops.c: New file. * libio/wprintf.c: New file. * libio/wscanf.c: New file. * libio/wstrops.c: New file. * stdio-common/Makefile (routines): Add _itowa, itowa-digits, vfwprintf, and vfwscanf. * stdio-common/_itoa.c (base_table): Rename to _IO_base_table and make global. * stdio-common/_itowa.c: New file. * stdio-common/_itowa.h: New file. * stdio-common/itoa-digits.c: Minimal optimization. * stdio-common/itowa-digits.c: New file. * stdio-common/printf-parse.h: Allow use in wide character context. * stdio-common/printf-prs.c: Define ISASCII and MBRLEN. * stdio-common/printf.h (printf_info): Add wide bit. * stdio-common/printf_fp.c: Determine from wide bit whether stream is wide oriented or not. * stdio-common/printf_size.c: Likewise. * sysdeps/generic/printf_fphex.c: Likewise. * stdlib/strfmon.c: Call __printf_fp with wide bit cleared. * stdio-common/vfprintf.c: Rewrite to allow use in wide character context. * stdio-common/vfscand.c: Likewise. * stdio-common/vfwprintf.c: New file. * stdio-common/vfwscanf.c: New file. * time/Makefile (routines): Add wcsftime. (tests): Add tst_wcsftime. * time/Versions: Add wcsftime to GLIBC_2.2 for libc. * time/strftime.c: Make usable as wcsftime. * time/wcsftime.c: New file. * time/tst_wcsftime.c: New file. * wcsmbs/Makefile (routines): Add wmempcpy and wcschrnul. * wcsmbs/Versions: Add wmempcpy and wcschrnul to GLIBC_2.2 for libc. * wcsmbs/wcschrnul.c: New file. * wcsmbs/wmemcpy.c: New file. * wcsmbs/wmemcpy.c: Rename to __wmemcpy and make wmemcpy weak alias. * wcsmbs/wmemmove.c: Likewise for wmemmove. * manual/stdio.texi: Document is_char and wide element if printf_info. * manual/time.texi: Document wcsftime. * include/wchar.h: Add prototypes for __wmemcpy, __wmempcpy, __wmemmove, __wcschrnul, and __vfwscanf. * locale/langinfo.h: Add new LC_TIME entries for wchar_t data. * locale/C-time.c: Adapt for above change. * locale/categories.def: Likewise. * locale/localeinfo.h: Likewise. * localedata/Makefile: Don't run tests for now.
Diffstat (limited to 'libio/wfileops.c')
-rw-r--r--libio/wfileops.c716
1 files changed, 716 insertions, 0 deletions
diff --git a/libio/wfileops.c b/libio/wfileops.c
new file mode 100644
index 0000000000..b040b97491
--- /dev/null
+++ b/libio/wfileops.c
@@ -0,0 +1,716 @@
+/* Copyright (C) 1993, 1995, 1997, 1998, 1999 Free Software Foundation, Inc.
+ This file is part of the GNU IO Library.
+ Written by Ulrich Drepper <drepper@cygnus.com>.
+ Based on the single byte version by Per Bothner <bothner@cygnus.com>.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2, or (at
+ your option) any later version.
+
+ This library is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this library; see the file COPYING. If not, write to
+ the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
+ MA 02111-1307, USA.
+
+ As a special exception, if you link this library with files
+ compiled with a GNU compiler to produce an executable, this does
+ not cause the resulting executable to be covered by the GNU General
+ Public License. This exception does not however invalidate any
+ other reasons why the executable file might be covered by the GNU
+ General Public License. */
+
+#include <assert.h>
+#include <libioP.h>
+#include <wchar.h>
+#include <gconv.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+_IO_FILE *
+_IO_wfile_setbuf (fp, p, len)
+ _IO_FILE *fp;
+ wchar_t *p;
+ _IO_ssize_t len;
+{
+ if (_IO_wdefault_setbuf (fp, p, len) == NULL)
+ return NULL;
+
+ fp->_wide_data->_IO_write_base = fp->_wide_data->_IO_write_ptr =
+ fp->_wide_data->_IO_write_end = fp->_wide_data->_IO_buf_base;
+ _IO_wsetg (fp, fp->_wide_data->_IO_buf_base, fp->_wide_data->_IO_buf_base,
+ fp->_wide_data->_IO_buf_base);
+
+ return fp;
+}
+
+
+/* Convert TO_DO wide character from DATA to FP.
+ Then mark FP as having empty buffers. */
+int
+_IO_wdo_write (fp, data, to_do)
+ _IO_FILE *fp;
+ const wchar_t *data;
+ _IO_size_t to_do;
+{
+ struct _IO_codecvt *cc = &fp->_wide_data->_codecvt;
+ _IO_size_t count = 0;
+
+ while (to_do > 0)
+ {
+ enum __codecvt_result result;
+ const wchar_t *new_data;
+
+ if (fp->_IO_write_end == fp->_IO_write_ptr)
+ {
+ _IO_new_file_overflow (fp, EOF);
+ assert (fp->_IO_write_end > fp->_IO_write_ptr);
+ }
+
+ /* Now convert from the internal format into the external buffer. */
+ result = (*cc->__codecvt_do_out) (cc, &fp->_wide_data->_IO_state,
+ data, data + to_do, &new_data,
+ fp->_IO_write_ptr,
+ fp->_IO_write_end,
+ &fp->_IO_write_ptr);
+
+ /* Write out what we produced so far. */
+ if (_IO_new_do_write (fp, fp->_IO_write_base,
+ fp->_IO_write_ptr - fp->_IO_write_base) == EOF)
+ /* Something went wrong. */
+ return EOF;
+
+ count += new_data - data;
+ to_do -= new_data - data;
+ data = new_data;
+
+ /* Next see whether we had problems during the conversion. If yes,
+ we cannot go on. */
+ if (result != __codecvt_ok)
+ break;
+ }
+
+ _IO_wsetg (fp, fp->_wide_data->_IO_buf_base, fp->_wide_data->_IO_buf_base,
+ fp->_wide_data->_IO_buf_base);
+ fp->_wide_data->_IO_write_base = fp->_wide_data->_IO_write_ptr
+ = fp->_wide_data->_IO_buf_base;
+ fp->_wide_data->_IO_write_end = ((fp->_flags & (_IO_LINE_BUF+_IO_UNBUFFERED))
+ ? fp->_wide_data->_IO_buf_base
+ : fp->_wide_data->_IO_buf_end);
+
+ return count;
+}
+
+
+wint_t
+_IO_wfile_underflow (fp)
+ _IO_FILE *fp;
+{
+ struct _IO_codecvt *cd;
+ enum __codecvt_result status;
+ _IO_ssize_t count;
+ int tries;
+ const char *read_ptr_copy;
+
+ if (fp->_flags & _IO_NO_READS)
+ {
+ __set_errno (EBADF);
+ return WEOF;
+ }
+ if (fp->_wide_data->_IO_read_ptr < fp->_wide_data->_IO_read_end)
+ return *fp->_wide_data->_IO_read_ptr;
+
+ cd = &fp->_wide_data->_codecvt;
+
+ /* Maybe there is something left in the external buffer. */
+ if (fp->_IO_read_ptr < fp->_IO_read_end)
+ {
+ /* Convert it. */
+ size_t avail_bytes = fp->_IO_read_end - fp->_IO_read_ptr;
+
+ if (avail_bytes >= (*cd->__codecvt_do_max_length) (cd))
+ {
+ /* There is more in the external. */
+ const char *read_stop = (const char *) fp->_IO_read_ptr;
+
+ fp->_wide_data->_IO_last_state = fp->_wide_data->_IO_state;
+ status = (*cd->__codecvt_do_in) (cd, &fp->_wide_data->_IO_state,
+ fp->_IO_read_ptr, fp->_IO_read_end,
+ &read_stop,
+ fp->_wide_data->_IO_read_end,
+ fp->_wide_data->_IO_buf_end,
+ &fp->_wide_data->_IO_read_end);
+
+ fp->_IO_read_ptr = (char *) read_stop;
+
+ /* If we managed to generate some text return the next character. */
+ if (fp->_wide_data->_IO_read_ptr < fp->_wide_data->_IO_read_end)
+ return *fp->_wide_data->_IO_read_ptr;
+
+ if (status == __codecvt_error)
+ {
+ __set_errno (EILSEQ);
+ fp->_flags |= _IO_ERR_SEEN;
+ return WEOF;
+ }
+ }
+
+ /* Move the remaining content of the read buffer to the beginning. */
+ memmove (fp->_IO_buf_base, fp->_IO_read_ptr,
+ fp->_IO_read_end - fp->_IO_read_ptr);
+ fp->_IO_read_end = (fp->_IO_buf_base
+ + (fp->_IO_read_end - fp->_IO_read_ptr));
+ fp->_IO_read_base = fp->_IO_read_ptr = fp->_IO_buf_base;
+ }
+ else
+ fp->_IO_read_base = fp->_IO_read_ptr = fp->_IO_read_end =
+ fp->_IO_buf_base;
+
+ fp->_IO_write_base = fp->_IO_write_ptr = fp->_IO_write_end =
+ fp->_IO_buf_base;
+
+ if (fp->_IO_buf_base == NULL)
+ {
+ /* Maybe we already have a push back pointer. */
+ if (fp->_IO_save_base != NULL)
+ {
+ free (fp->_IO_save_base);
+ fp->_flags &= ~_IO_IN_BACKUP;
+ }
+ _IO_doallocbuf (fp);
+ }
+
+ if (fp->_wide_data->_IO_buf_base == NULL)
+ {
+ /* Maybe we already have a push back pointer. */
+ if (fp->_wide_data->_IO_save_base != NULL)
+ {
+ free (fp->_wide_data->_IO_save_base);
+ fp->_flags &= ~_IO_IN_BACKUP;
+ }
+ _IO_wdoallocbuf (fp);
+ }
+
+ /* Flush all line buffered files before reading. */
+ /* FIXME This can/should be moved to genops ?? */
+ if (fp->_flags & (_IO_LINE_BUF|_IO_UNBUFFERED))
+ _IO_flush_all_linebuffered ();
+
+ _IO_switch_to_get_mode (fp);
+
+ fp->_IO_read_base = fp->_IO_read_ptr = fp->_IO_buf_base;
+ fp->_IO_read_end = fp->_IO_buf_base;
+ fp->_IO_write_base = fp->_IO_write_ptr = fp->_IO_write_end
+ = fp->_IO_buf_base;
+
+ fp->_wide_data->_IO_read_base = fp->_wide_data->_IO_read_ptr =
+ fp->_wide_data->_IO_buf_base;
+ fp->_wide_data->_IO_read_end = fp->_wide_data->_IO_buf_base;
+ fp->_wide_data->_IO_write_base = fp->_wide_data->_IO_write_ptr =
+ fp->_wide_data->_IO_write_end = fp->_wide_data->_IO_buf_base;
+
+ tries = 0;
+ again:
+ count = _IO_SYSREAD (fp, fp->_IO_read_end,
+ fp->_IO_buf_end - fp->_IO_read_end);
+ if (count <= 0)
+ {
+ if (count == 0 && tries == 0)
+ fp->_flags |= _IO_EOF_SEEN;
+ else
+ fp->_flags |= _IO_ERR_SEEN, count = 0;
+ }
+ fp->_IO_read_end += count;
+ if (count == 0)
+ {
+ if (tries != 0)
+ /* There are some bytes in the external buffer but they don't
+ convert to anything. */
+ __set_errno (EILSEQ);
+ return WEOF;
+ }
+ if (fp->_offset != _IO_pos_BAD)
+ _IO_pos_adjust (fp->_offset, count);
+
+ /* Now convert the read input. */
+ fp->_wide_data->_IO_last_state = fp->_wide_data->_IO_state;
+ fp->_IO_read_base = fp->_IO_read_ptr;
+ status = (*cd->__codecvt_do_in) (cd, &fp->_wide_data->_IO_state,
+ fp->_IO_read_ptr, fp->_IO_read_end,
+ &read_ptr_copy,
+ fp->_wide_data->_IO_read_end,
+ fp->_wide_data->_IO_buf_end,
+ &fp->_wide_data->_IO_read_end);
+
+ fp->_IO_read_ptr = (char *) read_ptr_copy;
+ if (fp->_wide_data->_IO_read_end == fp->_wide_data->_IO_buf_base)
+ {
+ if (status == __codecvt_error || fp->_IO_read_end == fp->_IO_buf_end)
+ {
+ __set_errno (EILSEQ);
+ fp->_flags |= _IO_ERR_SEEN;
+ return WEOF;
+ }
+
+ /* The read bytes make no complete character. Try reading again. */
+ assert (status == __codecvt_partial);
+ ++tries;
+ goto again;
+ }
+
+ return *fp->_wide_data->_IO_read_ptr;
+}
+
+
+wint_t
+_IO_wfile_overflow (f, wch)
+ _IO_FILE *f;
+ wint_t wch;
+{
+ if (f->_flags & _IO_NO_WRITES) /* SET ERROR */
+ {
+ f->_flags |= _IO_ERR_SEEN;
+ __set_errno (EBADF);
+ return WEOF;
+ }
+ /* If currently reading or no buffer allocated. */
+ if ((f->_flags & _IO_CURRENTLY_PUTTING) == 0)
+ {
+ /* Allocate a buffer if needed. */
+ if (f->_wide_data->_IO_write_base == 0)
+ {
+ _IO_wdoallocbuf (f);
+ _IO_wsetg (f, f->_wide_data->_IO_buf_base,
+ f->_wide_data->_IO_buf_base, f->_wide_data->_IO_buf_base);
+ }
+ else
+ {
+ /* Otherwise must be currently reading. If _IO_read_ptr
+ (and hence also _IO_read_end) is at the buffer end,
+ logically slide the buffer forwards one block (by setting
+ the read pointers to all point at the beginning of the
+ block). This makes room for subsequent output.
+ Otherwise, set the read pointers to _IO_read_end (leaving
+ that alone, so it can continue to correspond to the
+ external position). */
+ if (f->_wide_data->_IO_read_ptr == f->_wide_data->_IO_buf_end)
+ {
+ f->_IO_read_end = f->_IO_read_ptr = f->_IO_buf_base;
+ f->_wide_data->_IO_read_end = f->_wide_data->_IO_read_ptr =
+ f->_wide_data->_IO_buf_base;
+ }
+ }
+ f->_wide_data->_IO_write_ptr = f->_wide_data->_IO_read_ptr;
+ f->_wide_data->_IO_write_base = f->_wide_data->_IO_write_ptr;
+ f->_wide_data->_IO_write_end = f->_wide_data->_IO_buf_end;
+ f->_wide_data->_IO_read_base = f->_wide_data->_IO_read_ptr =
+ f->_wide_data->_IO_read_end;
+
+ f->_flags |= _IO_CURRENTLY_PUTTING;
+ if (f->_flags & (_IO_LINE_BUF+_IO_UNBUFFERED))
+ f->_wide_data->_IO_write_end = f->_wide_data->_IO_write_ptr;
+ }
+ if (wch == WEOF)
+ return _IO_do_flush (f);
+ if (f->_wide_data->_IO_write_ptr == f->_wide_data->_IO_buf_end )
+ /* Buffer is really full */
+ if (_IO_do_flush (f) == WEOF)
+ return WEOF;
+ *f->_wide_data->_IO_write_ptr++ = wch;
+ if ((f->_flags & _IO_UNBUFFERED)
+ || ((f->_flags & _IO_LINE_BUF) && wch == L'\n'))
+ if (_IO_do_flush (f) == WEOF)
+ return WEOF;
+ return wch;
+}
+
+wint_t
+_IO_wfile_sync (fp)
+ _IO_FILE *fp;
+{
+ _IO_ssize_t delta;
+ wint_t retval = 0;
+
+ /* char* ptr = cur_ptr(); */
+ if (fp->_wide_data->_IO_write_ptr > fp->_wide_data->_IO_write_base)
+ if (_IO_do_flush (fp))
+ return WEOF;
+ delta = fp->_wide_data->_IO_read_ptr - fp->_wide_data->_IO_read_end;
+ if (delta != 0)
+ {
+ /* We have to find out how many bytes we have to go back in the
+ external buffer. */
+ struct _IO_codecvt *cv = &fp->_wide_data->_codecvt;
+ _IO_off64_t new_pos;
+
+ int clen = (*cv->__codecvt_do_encoding) (cv);
+
+ if (clen > 0)
+ /* It is easy, a fixed number of input bytes are used for each
+ wide character. */
+ delta *= clen;
+ else
+ {
+ /* We have to find out the hard way how much to back off.
+ To do this we determine how much input we needed to
+ generate the wide characters up to the current reading
+ position. */
+ int nread;
+
+ fp->_wide_data->_IO_state = fp->_wide_data->_IO_last_state;
+ nread = (*cv->__codecvt_do_length) (cv, &fp->_wide_data->_IO_state,
+ fp->_IO_read_base,
+ fp->_IO_read_end, delta);
+ fp->_IO_read_ptr = fp->_IO_read_base + nread;
+ delta = -(fp->_IO_read_end - fp->_IO_read_base - nread);
+ }
+
+ new_pos = _IO_SYSSEEK (fp, delta, 1);
+ if (new_pos != (_IO_off64_t) EOF)
+ {
+ fp->_wide_data->_IO_read_end = fp->_wide_data->_IO_read_ptr;
+ fp->_IO_read_end = fp->_IO_read_ptr;
+ }
+#ifdef ESPIPE
+ else if (errno == ESPIPE)
+ ; /* Ignore error from unseekable devices. */
+#endif
+ else
+ retval = WEOF;
+ }
+ if (retval != WEOF)
+ fp->_offset = _IO_pos_BAD;
+ /* FIXME: Cleanup - can this be shared? */
+ /* setg(base(), ptr, ptr); */
+ return retval;
+}
+
+_IO_off64_t
+_IO_wfile_seekoff (fp, offset, dir, mode)
+ _IO_FILE *fp;
+ _IO_off64_t offset;
+ int dir;
+ int mode;
+{
+ _IO_off64_t result;
+ _IO_off64_t delta, new_offset;
+ long int count;
+ /* POSIX.1 8.2.3.7 says that after a call the fflush() the file
+ offset of the underlying file must be exact. */
+ int must_be_exact = ((fp->_wide_data->_IO_read_base
+ == fp->_wide_data->_IO_read_end)
+ && (fp->_wide_data->_IO_write_base
+ == fp->_wide_data->_IO_write_ptr));
+
+ if (mode == 0)
+ dir = _IO_seek_cur, offset = 0; /* Don't move any pointers. */
+
+ /* Flush unwritten characters.
+ (This may do an unneeded write if we seek within the buffer.
+ But to be able to switch to reading, we would need to set
+ egptr to ptr. That can't be done in the current design,
+ which assumes file_ptr() is eGptr. Anyway, since we probably
+ end up flushing when we close(), it doesn't make much difference.)
+ FIXME: simulate mem-papped files. */
+
+ if (fp->_wide_data->_IO_write_ptr > fp->_wide_data->_IO_write_base
+ || _IO_in_put_mode (fp))
+ if (_IO_switch_to_get_mode (fp))
+ return WEOF;
+
+ if (fp->_wide_data->_IO_buf_base == NULL)
+ {
+ /* It could be that we already have a pushback buffer. */
+ if (fp->_wide_data->_IO_read_base != NULL)
+ {
+ free (fp->_wide_data->_IO_read_base);
+ fp->_flags &= ~_IO_IN_BACKUP;
+ }
+ _IO_doallocbuf (fp);
+ _IO_setp (fp, fp->_IO_buf_base, fp->_IO_buf_base);
+ _IO_setg (fp, fp->_IO_buf_base, fp->_IO_buf_base, fp->_IO_buf_base);
+ _IO_wsetp (fp, fp->_wide_data->_IO_buf_base,
+ fp->_wide_data->_IO_buf_base);
+ _IO_wsetg (fp, fp->_wide_data->_IO_buf_base,
+ fp->_wide_data->_IO_buf_base, fp->_wide_data->_IO_buf_base);
+ }
+
+ switch (dir)
+ {
+ struct _IO_codecvt *cv;
+ int clen;
+
+ case _IO_seek_cur:
+ /* Adjust for read-ahead (bytes is buffer). To do this we must
+ find out which position in the external buffer corresponds to
+ the current position in the internal buffer. */
+ cv = &fp->_wide_data->_codecvt;
+ clen = (*cv->__codecvt_do_encoding) (cv);
+
+ if (clen > 0)
+ offset -= (fp->_wide_data->_IO_read_end
+ - fp->_wide_data->_IO_read_ptr) * clen;
+ else
+ {
+ int nread;
+
+ delta = fp->_wide_data->_IO_read_ptr - fp->_wide_data->_IO_read_end;
+ fp->_wide_data->_IO_state = fp->_wide_data->_IO_last_state;
+ nread = (*cv->__codecvt_do_length) (cv, &fp->_wide_data->_IO_state,
+ fp->_IO_read_base,
+ fp->_IO_read_end, delta);
+ fp->_IO_read_ptr = fp->_IO_read_base + nread;
+ offset -= fp->_IO_read_end - fp->_IO_read_base - nread;
+ }
+
+ if (fp->_offset == _IO_pos_BAD)
+ goto dumb;
+ /* Make offset absolute, assuming current pointer is file_ptr(). */
+ offset += fp->_offset;
+
+ dir = _IO_seek_set;
+ break;
+ case _IO_seek_set:
+ break;
+ case _IO_seek_end:
+ {
+ struct _G_stat64 st;
+ if (_IO_SYSSTAT (fp, &st) == 0 && S_ISREG (st.st_mode))
+ {
+ offset += st.st_size;
+ dir = _IO_seek_set;
+ }
+ else
+ goto dumb;
+ }
+ }
+ /* At this point, dir==_IO_seek_set. */
+
+ /* If we are only interested in the current position we've found it now. */
+ if (mode == 0)
+ return offset;
+
+ /* If destination is within current buffer, optimize: */
+ if (fp->_offset != _IO_pos_BAD && fp->_IO_read_base != NULL
+ && !_IO_in_backup (fp))
+ {
+ /* Offset relative to start of main get area. */
+ _IO_off64_t rel_offset = (offset - fp->_offset
+ + (fp->_IO_read_end - fp->_IO_read_base));
+ if (rel_offset >= 0)
+ {
+#if 0
+ if (_IO_in_backup (fp))
+ _IO_switch_to_main_get_area (fp);
+#endif
+ if (rel_offset <= fp->_IO_read_end - fp->_IO_read_base)
+ {
+ fp->_IO_read_ptr = fp->_IO_read_base + rel_offset;
+ _IO_setp (fp, fp->_IO_buf_base, fp->_IO_buf_base);
+
+ /* Now set the pointer for the internal buffer. This
+ might be an iterative process. Though the read
+ pointer is somewhere in the current external buffer
+ this does not mean we can convert this whole buffer
+ at once fitting in the internal buffer. */
+ do
+ {
+
+ }
+ while (0);
+
+ _IO_mask_flags (fp, 0, _IO_EOF_SEEN);
+ goto resync;
+ }
+#ifdef TODO
+ /* If we have streammarkers, seek forward by reading ahead. */
+ if (_IO_have_markers (fp))
+ {
+ int to_skip = rel_offset
+ - (fp->_IO_read_ptr - fp->_IO_read_base);
+ if (ignore (to_skip) != to_skip)
+ goto dumb;
+ _IO_mask_flags (fp, 0, _IO_EOF_SEEN);
+ goto resync;
+ }
+#endif
+ }
+#ifdef TODO
+ if (rel_offset < 0 && rel_offset >= Bbase () - Bptr ())
+ {
+ if (!_IO_in_backup (fp))
+ _IO_switch_to_backup_area (fp);
+ gbump (fp->_IO_read_end + rel_offset - fp->_IO_read_ptr);
+ _IO_mask_flags (fp, 0, _IO_EOF_SEEN);
+ goto resync;
+ }
+#endif
+ }
+
+#ifdef TODO
+ _IO_unsave_markers (fp);
+#endif
+
+ if (fp->_flags & _IO_NO_READS)
+ goto dumb;
+
+ /* Try to seek to a block boundary, to improve kernel page management. */
+ new_offset = offset & ~(fp->_IO_buf_end - fp->_IO_buf_base - 1);
+ delta = offset - new_offset;
+ if (delta > fp->_IO_buf_end - fp->_IO_buf_base)
+ {
+ new_offset = offset;
+ delta = 0;
+ }
+ result = _IO_SYSSEEK (fp, new_offset, 0);
+ if (result < 0)
+ return EOF;
+ if (delta == 0)
+ count = 0;
+ else
+ {
+ count = _IO_SYSREAD (fp, fp->_IO_buf_base,
+ (must_be_exact
+ ? delta : fp->_IO_buf_end - fp->_IO_buf_base));
+ if (count < delta)
+ {
+ /* We weren't allowed to read, but try to seek the remainder. */
+ offset = count == EOF ? delta : delta-count;
+ dir = _IO_seek_cur;
+ goto dumb;
+ }
+ }
+ _IO_setg (fp, fp->_IO_buf_base, fp->_IO_buf_base + delta,
+ fp->_IO_buf_base + count);
+ _IO_setp (fp, fp->_IO_buf_base, fp->_IO_buf_base);
+ fp->_offset = result + count;
+ _IO_mask_flags (fp, 0, _IO_EOF_SEEN);
+ return offset;
+ dumb:
+
+ _IO_unsave_markers (fp);
+ result = _IO_SYSSEEK (fp, offset, dir);
+ if (result != EOF)
+ {
+ _IO_mask_flags (fp, 0, _IO_EOF_SEEN);
+ fp->_offset = result;
+ _IO_setg (fp, fp->_IO_buf_base, fp->_IO_buf_base, fp->_IO_buf_base);
+ _IO_setp (fp, fp->_IO_buf_base, fp->_IO_buf_base);
+ }
+ return result;
+
+resync:
+ /* We need to do it since it is possible that the file offset in
+ the kernel may be changed behind our back. It may happen when
+ we fopen a file and then do a fork. One process may access the
+ the file and the kernel file offset will be changed. */
+ if (fp->_offset >= 0)
+ _IO_SYSSEEK (fp, fp->_offset, 0);
+
+ return offset;
+}
+
+
+_IO_size_t
+_IO_wfile_xsputn (f, data, n)
+ _IO_FILE *f;
+ const void *data;
+ _IO_size_t n;
+{
+ register const wchar_t *s = (const wchar_t *) data;
+ _IO_size_t to_do = n;
+ int must_flush = 0;
+ _IO_size_t count;
+
+ if (n <= 0)
+ return 0;
+ /* This is an optimized implementation.
+ If the amount to be written straddles a block boundary
+ (or the filebuf is unbuffered), use sys_write directly. */
+
+ /* First figure out how much space is available in the buffer. */
+ count = f->_wide_data->_IO_write_end - f->_wide_data->_IO_write_ptr;
+ if ((f->_flags & _IO_LINE_BUF) && (f->_flags & _IO_CURRENTLY_PUTTING))
+ {
+ count = f->_wide_data->_IO_buf_end - f->_wide_data->_IO_write_ptr;
+ if (count >= n)
+ {
+ register const wchar_t *p;
+ for (p = s + n; p > s; )
+ {
+ if (*--p == L'\n')
+ {
+ count = p - s + 1;
+ must_flush = 1;
+ break;
+ }
+ }
+ }
+ }
+ /* Then fill the buffer. */
+ if (count > 0)
+ {
+ if (count > to_do)
+ count = to_do;
+ if (count > 20)
+ {
+#ifdef _LIBC
+ f->_wide_data->_IO_write_ptr =
+ __wmempcpy (f->_wide_data->_IO_write_ptr, s, count);
+#else
+ wmemcpy (f->_wide_data->_IO_write_ptr, s, count);
+ f->_wide_data->_IO_write_ptr += count;
+#endif
+ s += count;
+ }
+ else
+ {
+ register wchar_t *p = f->_wide_data->_IO_write_ptr;
+ register int i = (int) count;
+ while (--i >= 0)
+ *p++ = *s++;
+ f->_wide_data->_IO_write_ptr = p;
+ }
+ to_do -= count;
+ }
+ if (to_do > 0)
+ to_do -= _IO_wdefault_xsputn (f, s, to_do);
+ if (must_flush
+ && f->_wide_data->_IO_write_ptr != f->_wide_data->_IO_write_base)
+ _IO_wdo_write (f, f->_wide_data->_IO_write_base,
+ f->_wide_data->_IO_write_ptr
+ - f->_wide_data->_IO_write_base);
+
+ return n - to_do;
+}
+
+
+struct _IO_jump_t _IO_wfile_jumps =
+{
+ JUMP_INIT_DUMMY,
+ JUMP_INIT(finish, _IO_new_file_finish),
+ JUMP_INIT(overflow, (_IO_overflow_t) _IO_wfile_overflow),
+ JUMP_INIT(underflow, (_IO_underflow_t) _IO_wfile_underflow),
+ JUMP_INIT(uflow, (_IO_underflow_t) _IO_wdefault_uflow),
+ JUMP_INIT(pbackfail, _IO_default_pbackfail),
+ JUMP_INIT(xsputn, _IO_wfile_xsputn),
+ JUMP_INIT(xsgetn, _IO_file_xsgetn),
+ JUMP_INIT(seekoff, _IO_wfile_seekoff),
+ JUMP_INIT(seekpos, _IO_default_seekpos),
+ JUMP_INIT(setbuf, _IO_new_file_setbuf),
+ JUMP_INIT(sync, (_IO_sync_t) _IO_wfile_sync),
+ JUMP_INIT(doallocate, _IO_wfile_doallocate),
+ JUMP_INIT(read, _IO_file_read),
+ JUMP_INIT(write, _IO_new_file_write),
+ JUMP_INIT(seek, _IO_file_seek),
+ JUMP_INIT(close, _IO_file_close),
+ JUMP_INIT(stat, _IO_file_stat),
+ JUMP_INIT(showmanyc, _IO_default_showmanyc),
+ JUMP_INIT(imbue, _IO_default_imbue)
+};