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2004-12-06  Ulrich Drepper  <drepper@redhat.com>

	* libio/fileops.c (_IO_new_file_seekoff): Fix optimization of in-buffer
	seek.  Remove dead code.

2004-12-02  Jakub Jelinek  <jakub@redhat.com>

	* libio/Makefile (tests): Add bug-ungetc4.
	* libio/bug-ungetc4.c: New test.
This commit is contained in:
Ulrich Drepper 2004-12-06 22:39:13 +00:00
parent e9a37a8390
commit c03c66ddb5
3 changed files with 19 additions and 43 deletions
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10
ChangeLog
View File

@ -1,3 +1,13 @@
2004-12-06 Ulrich Drepper <drepper@redhat.com>
* libio/fileops.c (_IO_new_file_seekoff): Fix optimization of in-buffer
seek. Remove dead code.
2004-12-02 Jakub Jelinek <jakub@redhat.com>
* libio/Makefile (tests): Add bug-ungetc4.
* libio/bug-ungetc4.c: New test.
2004-12-06 Roland McGrath <roland@redhat.com>
* sysdeps/unix/clock_nanosleep.c (clock_nanosleep): Diagnose EINVAL

2
libio/Makefile
View File

@ -54,7 +54,7 @@ tests = tst_swprintf tst_wprintf tst_swscanf tst_wscanf tst_getwc tst_putwc \
tst-freopen bug-rewind bug-rewind2 bug-ungetc bug-fseek \
tst-mmap-eofsync tst-mmap-fflushsync bug-mmap-fflush \
tst-mmap2-eofsync tst-mmap-offend bug-fopena+ bug-wfflush \
bug-ungetc2 bug-ftell bug-ungetc3
bug-ungetc2 bug-ftell bug-ungetc3 bug-ungetc4
test-srcs = test-freopen
all: # Make this the default target; it will be defined in Rules.

50
libio/fileops.c
View File

@ -1035,54 +1035,20 @@ _IO_new_file_seekoff (fp, offset, dir, mode)
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)
_IO_off64_t start_offset = (fp->_offset
- (fp->_IO_read_end - fp->_IO_buf_base));
if (offset >= start_offset && offset < fp->_offset)
{
#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)
{
_IO_setg (fp, fp->_IO_buf_base, fp->_IO_buf_base + rel_offset,
fp->_IO_read_end);
_IO_setp (fp, fp->_IO_buf_base, fp->_IO_buf_base);
{
_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_setg (fp, fp->_IO_buf_base,
fp->_IO_buf_base + (offset - start_offset),
fp->_IO_read_end);
_IO_setp (fp, fp->_IO_buf_base, fp->_IO_buf_base);
_IO_mask_flags (fp, 0, _IO_EOF_SEEN);
goto resync;
}
#endif
}
#ifdef TODO
INTUSE(_IO_unsave_markers) (fp);
#endif
if (fp->_flags & _IO_NO_READS)
goto dumb;