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Remove unused scratch_buffer_dupfree
Turns out scratch_buffer_dupfree internal API was unused since
commit ef0700004b
stdlib: Simplify buffer management in canonicalize
And the related test in malloc/tst-scratch_buffer had issues
so it's better to remove it completely.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
This commit is contained in:
parent
2eeeee7636
commit
8c77e26ba8
@ -132,20 +132,4 @@ scratch_buffer_set_array_size (struct scratch_buffer *buffer,
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(buffer, nelem, size));
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(buffer, nelem, size));
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}
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}
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/* Return a copy of *BUFFER's first SIZE bytes as a heap-allocated block,
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deallocating *BUFFER if it was heap-allocated. SIZE must be at
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most *BUFFER's size. Return NULL (setting errno) on memory
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exhaustion. */
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void *__libc_scratch_buffer_dupfree (struct scratch_buffer *buffer,
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size_t size);
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libc_hidden_proto (__libc_scratch_buffer_dupfree)
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/* Alias for __libc_scratch_dupfree. */
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static __always_inline void *
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scratch_buffer_dupfree (struct scratch_buffer *buffer, size_t size)
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{
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void *r = __libc_scratch_buffer_dupfree (buffer, size);
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return __glibc_likely (r != NULL) ? r : NULL;
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}
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#endif /* _SCRATCH_BUFFER_H */
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#endif /* _SCRATCH_BUFFER_H */
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@ -123,7 +123,6 @@ tests-mcheck = $(filter-out $(tests-exclude-mcheck) $(tests-static), $(tests))
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endif
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endif
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routines = malloc mcheck mtrace obstack reallocarray \
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routines = malloc mcheck mtrace obstack reallocarray \
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scratch_buffer_dupfree \
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scratch_buffer_grow scratch_buffer_grow_preserve \
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scratch_buffer_grow scratch_buffer_grow_preserve \
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scratch_buffer_set_array_size \
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scratch_buffer_set_array_size \
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dynarray_at_failure \
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dynarray_at_failure \
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@ -75,7 +75,6 @@ libc {
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__libc_thread_freeres;
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__libc_thread_freeres;
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# struct scratch_buffer support
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# struct scratch_buffer support
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__libc_scratch_buffer_dupfree;
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__libc_scratch_buffer_grow;
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__libc_scratch_buffer_grow;
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__libc_scratch_buffer_grow_preserve;
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__libc_scratch_buffer_grow_preserve;
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__libc_scratch_buffer_set_array_size;
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__libc_scratch_buffer_set_array_size;
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@ -1,41 +0,0 @@
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/* Variable-sized buffer with on-stack default allocation.
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Copyright (C) 2020-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _LIBC
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# include <libc-config.h>
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#endif
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#include <scratch_buffer.h>
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#include <string.h>
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void *
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__libc_scratch_buffer_dupfree (struct scratch_buffer *buffer, size_t size)
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{
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void *data = buffer->data;
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if (data == buffer->__space.__c)
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{
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void *copy = malloc (size);
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return copy != NULL ? memcpy (copy, data, size) : NULL;
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}
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else
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{
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void *copy = realloc (data, size);
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return copy != NULL ? copy : data;
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}
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}
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libc_hidden_def (__libc_scratch_buffer_dupfree)
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@ -151,26 +151,6 @@ do_test (void)
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&& array_size_must_fail (4, ((size_t)-1) / 4)))
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&& array_size_must_fail (4, ((size_t)-1) / 4)))
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return 1;
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return 1;
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}
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}
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{
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struct scratch_buffer buf;
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scratch_buffer_init (&buf);
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memset (buf.data, '@', buf.length);
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size_t sizes[] = { 16, buf.length, buf.length + 16 };
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for (int i = 0; i < array_length (sizes); i++)
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{
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/* The extra size is unitialized through realloc. */
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size_t l = sizes[i] > buf.length ? sizes[i] : buf.length;
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void *r = scratch_buffer_dupfree (&buf, l);
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void *c = xmalloc (l);
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memset (c, '@', l);
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TEST_COMPARE_BLOB (r, l, buf.data, l);
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free (r);
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free (c);
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}
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scratch_buffer_free (&buf);
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}
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return 0;
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return 0;
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}
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}
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