/usr/include/atomic_ops_malloc.h is in libatomic-ops-dev 7.4.2-3ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | /*
* Copyright (c) 2005 Hewlett-Packard Development Company, L.P.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
/* Almost lock-free malloc implementation based on stack implementation. */
/* See doc/README_malloc.txt file for detailed usage rules. */
#ifndef AO_MALLOC_H
#define AO_MALLOC_H
#include "atomic_ops_stack.h"
#include <stddef.h> /* for size_t */
#ifdef AO_STACK_IS_LOCK_FREE
# define AO_MALLOC_IS_LOCK_FREE
#endif
void AO_free(void *);
void * AO_malloc(size_t);
/* Allow use of mmap to grow the heap. No-op on some platforms. */
void AO_malloc_enable_mmap(void);
#endif /* !AO_MALLOC_H */
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