glibc/malloc/alloc_buffer_allocate.c

37 lines
1.3 KiB
C

/* Allocate a fixed-size allocation buffer using malloc.
Copyright (C) 2017-2018 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, see
<http://www.gnu.org/licenses/>. */
#include <alloc_buffer.h>
#include <stdlib.h>
struct alloc_buffer
__libc_alloc_buffer_allocate (size_t size, void **pptr)
{
*pptr = malloc (size);
if (*pptr == NULL)
return (struct alloc_buffer)
{
.__alloc_buffer_current = __ALLOC_BUFFER_INVALID_POINTER,
.__alloc_buffer_end = __ALLOC_BUFFER_INVALID_POINTER
};
else
return alloc_buffer_create (*pptr, size);
}
libc_hidden_def (__libc_alloc_buffer_allocate)