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authorUlrich Drepper <drepper@redhat.com>1999-04-12 23:00:37 +0000
committerUlrich Drepper <drepper@redhat.com>1999-04-12 23:00:37 +0000
commit2799531132f564a4681d7fd8c3b4c71a474d86a1 (patch)
tree5640b6521643d9f0b687c40f0620dd272baf2b74 /libio
parent97119860964ea61ba999d8ce9434e83a56a96ba9 (diff)
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Update.
1999-04-13 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * libio/obprintf.c (_IO_obstack_overflow): Put the write end at the real end of the chunk, not some random point inbetween. (_IO_obstack_xsputn): Likewise. Actually copy the data into the obstack when growing. Use fast version of obstack_blank when shrinking. (struct _IO_obstack_file): Use _IO_FILE_plus instead of explicitly allocating the vtable pointer. (_IO_obstack_vprintf): Adjust for above change and avoid unnecessary casts. Use fast version of obstack_blank when shrinking. Fixes PR libc/1075.
Diffstat (limited to 'libio')
-rw-r--r--libio/obprintf.c37
1 files changed, 18 insertions, 19 deletions
diff --git a/libio/obprintf.c b/libio/obprintf.c
index a4d685a..0e947b2 100644
--- a/libio/obprintf.c
+++ b/libio/obprintf.c
@@ -1,5 +1,5 @@
/* Print output of stream to given obstack.
- Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@@ -31,8 +31,7 @@
struct _IO_obstack_file
{
- struct _IO_FILE file;
- const void *vtable;
+ struct _IO_FILE_plus file;
struct obstack *obstack;
};
@@ -50,7 +49,7 @@ _IO_obstack_overflow (_IO_FILE *fp, int c)
/* Setup the buffer pointers again. */
fp->_IO_write_base = obstack_base (obstack);
fp->_IO_write_ptr = obstack_next_free (obstack);
- fp->_IO_write_end = fp->_IO_write_base + obstack_room (obstack);
+ fp->_IO_write_end = fp->_IO_write_ptr + obstack_room (obstack);
/* Now allocate the rest of the current chunk. */
obstack_blank_fast (obstack, fp->_IO_write_end - fp->_IO_write_ptr);
@@ -67,15 +66,15 @@ _IO_obstack_xsputn (_IO_FILE *fp, const void *data, _IO_size_t n)
{
/* We need some more memory. First shrink the buffer to the
space we really currently need. */
- obstack_blank (obstack, fp->_IO_write_ptr - fp->_IO_write_end);
+ obstack_blank_fast (obstack, fp->_IO_write_ptr - fp->_IO_write_end);
- /* Now grow for N bytes. */
- obstack_blank (obstack, n);
+ /* Now grow for N bytes, and put the data there. */
+ obstack_grow (obstack, data, n);
/* Setup the buffer pointers again. */
fp->_IO_write_base = obstack_base (obstack);
fp->_IO_write_ptr = obstack_next_free (obstack);
- fp->_IO_write_end = (fp->_IO_write_base + obstack_room (obstack));
+ fp->_IO_write_end = (fp->_IO_write_ptr + obstack_room (obstack));
/* Now allocate the rest of the current chunk. */
obstack_blank_fast (obstack, fp->_IO_write_end - fp->_IO_write_ptr);
}
@@ -125,25 +124,25 @@ _IO_obstack_vprintf (struct obstack *obstack, const char *format, va_list args)
int result;
#ifdef _IO_MTSAFE_IO
- new_f.ofile.file._lock = &new_f.lock;
+ new_f.ofile.file.file._lock = &new_f.lock;
#endif
- _IO_init ((_IO_FILE *) &new_f.ofile, 0);
- _IO_JUMPS (&new_f.ofile.file) = &_IO_obstack_jumps;
- _IO_str_init_static (&new_f.ofile.file, obstack_base (obstack),
- (obstack_object_size (obstack) +
- obstack_room (obstack)), obstack_next_free (obstack));
+ _IO_init (&new_f.ofile.file.file, 0);
+ _IO_JUMPS (&new_f.ofile.file.file) = &_IO_obstack_jumps;
+ _IO_str_init_static (&new_f.ofile.file.file, obstack_base (obstack),
+ obstack_object_size (obstack) + obstack_room (obstack),
+ obstack_next_free (obstack));
/* Now allocate the rest of the current chunk. */
obstack_blank_fast (obstack,
- (new_f.ofile.file._IO_write_end
- - new_f.ofile.file._IO_write_ptr));
+ (new_f.ofile.file.file._IO_write_end
+ - new_f.ofile.file.file._IO_write_ptr));
new_f.ofile.obstack = obstack;
- result = _IO_vfprintf ((_IO_FILE *) &new_f, format, args);
+ result = _IO_vfprintf (&new_f.ofile.file.file, format, args);
/* Shrink the buffer to the space we really currently need. */
- obstack_blank (obstack, (new_f.ofile.file._IO_write_ptr
- - new_f.ofile.file._IO_write_end));
+ obstack_blank_fast (obstack, (new_f.ofile.file.file._IO_write_ptr
+ - new_f.ofile.file.file._IO_write_end));
return result;
}