glibc/libio/wstrops.c
Ulrich Drepper bff334e090 Update.
2002-06-17  Jakub Jelinek  <jakub@redhat.com>

	* elf/dl-lookup.c (_dl_debug_bindings): Use type_class 4 for TLS
	lookups.
	* elf/rtld.c (dl_main): Move TLS setup code before LD_TRACE_PRELINKING
	code.  Print TLS modid and offset for modules containing PT_TLS
	segments.

2002-06-09  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/unix/sysv/linux/i386/dl-brk.c: Move...
	* sysdeps/unix/sysv/linux/dl-brk.c: ...here.
	* sysdeps/unix/sysv/linux/i386/dl-sbrk.c: Move...
	* sysdeps/unix/sysv/linux/dl-sbrk.c: ...here.

2002-06-07  Jakub Jelinek  <jakub@redhat.com>

	* nss/getXXbyYY_r.c (NEW, NEW1): Define.
	(NEW (REENTRANT_NAME)): Strong alias to INTERNAL (REENTRANT_NAME).
	(REENTRANT_NAME@@GLIBC_2.1.2): Use NEW (REENTRANT_NAME).
	* nss/getXXent_r.c (NEW, NEW1): Define.
	(NEW (REENTRANT_GETNAME)): Strong alias to
	INTERNAL (REENTRANT_GETNAME).
	(REENTRANT_GETNAME@@GLIBC_2.1.2): Use NEW (REENTRANT_GETNAME).

2002-06-21  Ulrich Drepper  <drepper@redhat.com>

	* libio/fileops.c (_IO_file_setbuf_mmap): New function.
	(_IO_file_jumps_mmap): Use it.
	* libio/iosetvbuf.c: Don't call _IO_WSETBUF.
	* libio/libioP.h: Remove _IO_wdefault_setbuf and
	_IO_wdefault_setbuf_internal prorotypes.  Add _IO_file_setbuf_mmap
	prototype.
	* libio/wfileops.c (_IO_wfile_setbuf): Removed.
	(_IO_wfile_jumps_mmap): Don't use it anymore.
	* libio/wgenops.c (_IO_wdefault_setbuf): Removed.
	* libio/memstream.c (_IO_wmem_jumps): Use _IO_default_setbuf not
	_IO_wdefault_setbuf.
	* libio/vswprintf.c (_IO_wstrn_jumps): Likewise.
	* libio/wstrops.c (_IO_wstr_jumps): Likewise.
	* stdio-common/vfprintf.c (_IO_helper_jumps): Likewise.

2002-06-05  Jakub Jelinek  <jakub@redhat.com>

	* libio/Makefile (tests): Add tst-mmap-setvbuf.
	* libio/tst-mmap-setvbuf.c: New test.
2002-06-22 05:24:45 +00:00

334 lines
10 KiB
C

/* Copyright (C) 1993,1997,1998,1999,2001,2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA.
As a special exception, if you link the code in this file with
files compiled with a GNU compiler to produce an executable,
that does not cause the resulting executable to be covered by
the GNU Lesser General Public License. This exception does not
however invalidate any other reasons why the executable file
might be covered by the GNU Lesser General Public License.
This exception applies to code released by its copyright holders
in files containing the exception. */
#include "strfile.h"
#include "libioP.h"
#include <string.h>
#include <wchar.h>
#include <stdio_ext.h>
#if 0
/* The following definitions are for exposition only.
They map the terminology used in the ANSI/ISO C++ draft standard
to the implementation. */
/* allocated: set when a dynamic array object has been allocated, and
hence should be freed by the destructor for the strstreambuf object. */
#define ALLOCATED(FP) ((FP)->_f._IO_buf_base && DYNAMIC(FP))
/* constant: set when the array object has const elements,
so the output sequence cannot be written. */
#define CONSTANT(FP) ((FP)->_f._IO_file_flags & _IO_NO_WRITES)
/* alsize: the suggested minimum size for a dynamic array object. */
#define ALSIZE(FP) ??? /* not stored */
/* palloc: points to the function to call to allocate a dynamic array object.*/
#define PALLOC(FP) \
((FP)->_s._allocate_buffer == default_alloc ? 0 : (FP)->_s._allocate_buffer)
/* pfree: points to the function to call to free a dynamic array object. */
#define PFREE(FP) \
((FP)->_s._free_buffer == default_free ? 0 : (FP)->_s._free_buffer)
#endif
#ifdef TODO
/* An "unbounded buffer" is when a buffer is supplied, but with no
specified length. An example is the buffer argument to sprintf.
*/
#endif
void
_IO_wstr_init_static (fp, ptr, size, pstart)
_IO_FILE *fp;
wchar_t *ptr;
int size;
wchar_t *pstart;
{
if (size == 0)
size = __wcslen (ptr);
else if (size < 0)
{
/* If size is negative 'the characters are assumed to
continue indefinitely.' This is kind of messy ... */
int s;
size = 512;
/* Try increasing powers of 2, as long as we don't wrap around. */
for (; s = 2*size, s > 0 && ptr + s > ptr && s < 0x4000000L; )
size = s;
/* Try increasing size as much as we can without wrapping around. */
for (s = size >> 1; s > 0; s >>= 1)
{
if (ptr + size + s > ptr)
size += s;
}
}
INTUSE(_IO_wsetb) (fp, ptr, ptr + size, 0);
fp->_wide_data->_IO_write_base = ptr;
fp->_wide_data->_IO_read_base = ptr;
fp->_wide_data->_IO_read_ptr = ptr;
if (pstart)
{
fp->_wide_data->_IO_write_ptr = pstart;
fp->_wide_data->_IO_write_end = ptr + size;
fp->_wide_data->_IO_read_end = pstart;
}
else
{
fp->_wide_data->_IO_write_ptr = ptr;
fp->_wide_data->_IO_write_end = ptr;
fp->_wide_data->_IO_read_end = ptr + size;
}
/* A null _allocate_buffer function flags the strfile as being static. */
(((_IO_strfile *) fp)->_s._allocate_buffer) = (_IO_alloc_type)0;
}
void
_IO_wstr_init_readonly (fp, ptr, size)
_IO_FILE *fp;
const char *ptr;
int size;
{
_IO_wstr_init_static (fp, (wchar_t *) ptr, size, NULL);
fp->_IO_file_flags |= _IO_NO_WRITES;
}
_IO_wint_t
_IO_wstr_overflow (fp, c)
_IO_FILE *fp;
_IO_wint_t c;
{
int flush_only = c == WEOF;
_IO_size_t pos;
if (fp->_flags & _IO_NO_WRITES)
return flush_only ? 0 : WEOF;
if ((fp->_flags & _IO_TIED_PUT_GET) && !(fp->_flags & _IO_CURRENTLY_PUTTING))
{
fp->_flags |= _IO_CURRENTLY_PUTTING;
fp->_wide_data->_IO_write_ptr = fp->_wide_data->_IO_read_ptr;
fp->_wide_data->_IO_read_ptr = fp->_wide_data->_IO_read_end;
}
pos = fp->_wide_data->_IO_write_ptr - fp->_wide_data->_IO_write_base;
if (pos >= (_IO_size_t) (_IO_wblen (fp) + flush_only))
{
if (fp->_flags & _IO_USER_BUF) /* not allowed to enlarge */
return WEOF;
else
{
wchar_t *new_buf;
wchar_t *old_buf = fp->_wide_data->_IO_buf_base;
_IO_size_t new_size = 2 * _IO_wblen (fp) + 100;
new_buf
= (wchar_t *) (*((_IO_strfile *) fp)->_s._allocate_buffer) (new_size
* sizeof (wchar_t));
if (new_buf == NULL)
{
/* __ferror(fp) = 1; */
return WEOF;
}
if (old_buf)
{
__wmemcpy (new_buf, old_buf, _IO_wblen (fp));
(*((_IO_strfile *) fp)->_s._free_buffer) (old_buf);
/* Make sure _IO_setb won't try to delete _IO_buf_base. */
fp->_wide_data->_IO_buf_base = NULL;
}
INTUSE(_IO_wsetb) (fp, new_buf, new_buf + new_size, 1);
fp->_wide_data->_IO_read_base =
new_buf + (fp->_wide_data->_IO_read_base - old_buf);
fp->_wide_data->_IO_read_ptr =
new_buf + (fp->_wide_data->_IO_read_ptr - old_buf);
fp->_wide_data->_IO_read_end =
new_buf + (fp->_wide_data->_IO_read_end - old_buf);
fp->_wide_data->_IO_write_ptr =
new_buf + (fp->_wide_data->_IO_write_ptr - old_buf);
fp->_wide_data->_IO_write_base = new_buf;
fp->_wide_data->_IO_write_end = fp->_wide_data->_IO_buf_end;
}
}
if (!flush_only)
*fp->_wide_data->_IO_write_ptr++ = c;
if (fp->_wide_data->_IO_write_ptr > fp->_wide_data->_IO_read_end)
fp->_wide_data->_IO_read_end = fp->_wide_data->_IO_write_ptr;
return c;
}
_IO_wint_t
_IO_wstr_underflow (fp)
_IO_FILE *fp;
{
if (fp->_wide_data->_IO_write_ptr > fp->_wide_data->_IO_read_end)
fp->_wide_data->_IO_read_end = fp->_wide_data->_IO_write_ptr;
if ((fp->_flags & _IO_TIED_PUT_GET) && (fp->_flags & _IO_CURRENTLY_PUTTING))
{
fp->_flags &= ~_IO_CURRENTLY_PUTTING;
fp->_wide_data->_IO_read_ptr = fp->_wide_data->_IO_write_ptr;
fp->_wide_data->_IO_write_ptr = fp->_wide_data->_IO_write_end;
}
if (fp->_wide_data->_IO_read_ptr < fp->_wide_data->_IO_read_end)
return *fp->_wide_data->_IO_read_ptr;
else
return WEOF;
}
/* The size of the valid part of the buffer. */
_IO_ssize_t
_IO_wstr_count (fp)
_IO_FILE *fp;
{
return ((fp->_wide_data->_IO_write_ptr > fp->_wide_data->_IO_read_end
? fp->_wide_data->_IO_write_ptr : fp->_wide_data->_IO_read_end)
- fp->_wide_data->_IO_read_base);
}
_IO_off64_t
_IO_wstr_seekoff (fp, offset, dir, mode)
_IO_FILE *fp;
_IO_off64_t offset;
int dir;
int mode;
{
_IO_off64_t new_pos;
if (mode == 0 && (fp->_flags & _IO_TIED_PUT_GET))
mode = (fp->_flags & _IO_CURRENTLY_PUTTING ? _IOS_OUTPUT : _IOS_INPUT);
if (mode == 0)
{
/* Don't move any pointers. But there is no clear indication what
mode FP is in. Let's guess. */
if (fp->_IO_file_flags & _IO_NO_WRITES)
new_pos = fp->_wide_data->_IO_read_ptr - fp->_wide_data->_IO_read_base;
else
new_pos = (fp->_wide_data->_IO_write_ptr
- fp->_wide_data->_IO_write_base);
}
else
{
_IO_ssize_t cur_size = _IO_wstr_count (fp);
new_pos = EOF;
/* Move the get pointer, if requested. */
if (mode & _IOS_INPUT)
{
switch (dir)
{
case _IO_seek_end:
offset += cur_size;
break;
case _IO_seek_cur:
offset += (fp->_wide_data->_IO_read_ptr
- fp->_wide_data->_IO_read_base);
break;
default: /* case _IO_seek_set: */
break;
}
if (offset < 0 || (_IO_ssize_t) offset > cur_size)
return EOF;
fp->_wide_data->_IO_read_ptr = (fp->_wide_data->_IO_read_base
+ offset);
fp->_wide_data->_IO_read_end = (fp->_wide_data->_IO_read_base
+ cur_size);
new_pos = offset;
}
/* Move the put pointer, if requested. */
if (mode & _IOS_OUTPUT)
{
switch (dir)
{
case _IO_seek_end:
offset += cur_size;
break;
case _IO_seek_cur:
offset += (fp->_wide_data->_IO_write_ptr
- fp->_wide_data->_IO_write_base);
break;
default: /* case _IO_seek_set: */
break;
}
if (offset < 0 || (_IO_ssize_t) offset > cur_size)
return EOF;
fp->_wide_data->_IO_write_ptr = (fp->_wide_data->_IO_write_base
+ offset);
new_pos = offset;
}
}
return new_pos;
}
_IO_wint_t
_IO_wstr_pbackfail (fp, c)
_IO_FILE *fp;
_IO_wint_t c;
{
if ((fp->_flags & _IO_NO_WRITES) && c != EOF)
return WEOF;
return INTUSE(_IO_wdefault_pbackfail) (fp, c);
}
void
_IO_wstr_finish (fp, dummy)
_IO_FILE *fp;
int dummy;
{
if (fp->_wide_data->_IO_buf_base && !(fp->_flags & _IO_USER_BUF))
(((_IO_strfile *) fp)->_s._free_buffer) (fp->_wide_data->_IO_buf_base);
fp->_wide_data->_IO_buf_base = NULL;
INTUSE(_IO_wdefault_finish) (fp, 0);
}
struct _IO_jump_t _IO_wstr_jumps =
{
JUMP_INIT_DUMMY,
JUMP_INIT(finish, _IO_wstr_finish),
JUMP_INIT(overflow, (_IO_overflow_t) _IO_wstr_overflow),
JUMP_INIT(underflow, (_IO_underflow_t) _IO_wstr_underflow),
JUMP_INIT(uflow, (_IO_underflow_t) INTUSE(_IO_wdefault_uflow)),
JUMP_INIT(pbackfail, (_IO_pbackfail_t) _IO_wstr_pbackfail),
JUMP_INIT(xsputn, INTUSE(_IO_wdefault_xsputn)),
JUMP_INIT(xsgetn, INTUSE(_IO_wdefault_xsgetn)),
JUMP_INIT(seekoff, _IO_wstr_seekoff),
JUMP_INIT(seekpos, _IO_default_seekpos),
JUMP_INIT(setbuf, _IO_default_setbuf),
JUMP_INIT(sync, _IO_default_sync),
JUMP_INIT(doallocate, INTUSE(_IO_wdefault_doallocate)),
JUMP_INIT(read, _IO_default_read),
JUMP_INIT(write, _IO_default_write),
JUMP_INIT(seek, _IO_default_seek),
JUMP_INIT(close, _IO_default_close),
JUMP_INIT(stat, _IO_default_stat),
JUMP_INIT(showmanyc, _IO_default_showmanyc),
JUMP_INIT(imbue, _IO_default_imbue)
};