Gitly


1 /*
2  * Copyright (c) 2005 Hewlett-Packard Development Company, L.P.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a copy
5  * of this software and associated documentation files (the "Software"), to deal
6  * in the Software without restriction, including without limitation the rights
7  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8  * copies of the Software, and to permit persons to whom the Software is
9  * furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20  * SOFTWARE.
21  */
22 
23 /* Almost lock-free malloc implementation based on stack implementation. */
24 /* See README_malloc.txt file for detailed usage rules.                  */
25 
26 #ifndef AO_MALLOC_H
27 #define AO_MALLOC_H
28 
29 #include "atomic_ops_stack.h"
30 
31 #include <stddef.h> /* for size_t */
32 
33 #ifdef __cplusplus
34   extern "C" {
35 #endif
36 
37 #ifdef AO_STACK_IS_LOCK_FREE
38 # define AO_MALLOC_IS_LOCK_FREE
39 #endif
40 
41 #ifndef AO_ATTR_MALLOC
42 # if AO_GNUC_PREREQ(3, 1)
43 #   define AO_ATTR_MALLOC __attribute__((__malloc__))
44 # elif defined(_MSC_VER) && (_MSC_VER >= 1900) && !defined(__EDG__)
45 #   define AO_ATTR_MALLOC \
46                 __declspec(allocator) __declspec(noalias) __declspec(restrict)
47 # elif defined(_MSC_VER) && _MSC_VER >= 1400
48 #   define AO_ATTR_MALLOC __declspec(noalias) __declspec(restrict)
49 # else
50 #   define AO_ATTR_MALLOC /* empty */
51 # endif
52 #endif
53 
54 #ifndef AO_ATTR_ALLOC_SIZE
55 # ifdef __clang__
56 #   if __has_attribute(__alloc_size__)
57 #     define AO_ATTR_ALLOC_SIZE(argnum) \
58                 __attribute__((__alloc_size__(argnum)))
59 #   else
60 #     define AO_ATTR_ALLOC_SIZE(argnum) /* empty */
61 #   endif
62 # elif AO_GNUC_PREREQ(4, 3) && !defined(__ICC)
63 #   define AO_ATTR_ALLOC_SIZE(argnum) __attribute__((__alloc_size__(argnum)))
64 # else
65 #   define AO_ATTR_ALLOC_SIZE(argnum) /* empty */
66 # endif
67 #endif
68 
69 AO_API void AO_free(void *);
70 
71 AO_API AO_ATTR_MALLOC AO_ATTR_ALLOC_SIZE(1)
72 void * AO_malloc(size_t);
73 
74 /* Allow use of mmap to grow the heap.  No-op on some platforms.        */
75 AO_API void AO_malloc_enable_mmap(void);
76 
77 #ifdef __cplusplus
78   } /* extern "C" */
79 #endif
80 
81 #endif /* !AO_MALLOC_H */
82

1	/*
2	* Copyright (c) 2005 Hewlett-Packard Development Company, L.P.
3	*
4	* Permission is hereby granted, free of charge, to any person obtaining a copy
5	* of this software and associated documentation files (the "Software"), to deal
6	* in the Software without restriction, including without limitation the rights
7	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8	* copies of the Software, and to permit persons to whom the Software is
9	* furnished to do so, subject to the following conditions:
10	*
11	* The above copyright notice and this permission notice shall be included in
12	* all copies or substantial portions of the Software.
13	*
14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20	* SOFTWARE.
21	*/
22
23	/ Almost lock-free malloc implementation based on stack implementation. /
24	/ See README_malloc.txt file for detailed usage rules. /
25
26	#ifndef AO_MALLOC_H
27	#define AO_MALLOC_H
28
29	#include "atomic_ops_stack.h"
30
31	#include <stddef.h> / for size_t /
32
33	#ifdef __cplusplus
34	extern "C" {
35	#endif
36
37	#ifdef AO_STACK_IS_LOCK_FREE
38	# define AO_MALLOC_IS_LOCK_FREE
39	#endif
40
41	#ifndef AO_ATTR_MALLOC
42	# if AO_GNUC_PREREQ(3, 1)
43	# define AO_ATTR_MALLOC __attribute__((__malloc__))
44	# elif defined(_MSC_VER) && (_MSC_VER >= 1900) && !defined(__EDG__)
45	# define AO_ATTR_MALLOC \
46	__declspec(allocator) __declspec(noalias) __declspec(restrict)
47	# elif defined(_MSC_VER) && _MSC_VER >= 1400
48	# define AO_ATTR_MALLOC __declspec(noalias) __declspec(restrict)
49	# else
50	# define AO_ATTR_MALLOC / empty /
51	# endif
52	#endif
53
54	#ifndef AO_ATTR_ALLOC_SIZE
55	# ifdef __clang__
56	# if __has_attribute(__alloc_size__)
57	# define AO_ATTR_ALLOC_SIZE(argnum) \
58	__attribute__((__alloc_size__(argnum)))
59	# else
60	# define AO_ATTR_ALLOC_SIZE(argnum) / empty /
61	# endif
62	# elif AO_GNUC_PREREQ(4, 3) && !defined(__ICC)
63	# define AO_ATTR_ALLOC_SIZE(argnum) __attribute__((__alloc_size__(argnum)))
64	# else
65	# define AO_ATTR_ALLOC_SIZE(argnum) / empty /
66	# endif
67	#endif
68
69	AO_API void AO_free(void *);
70
71	AO_API AO_ATTR_MALLOC AO_ATTR_ALLOC_SIZE(1)
72	void * AO_malloc(size_t);
73
74	/ Allow use of mmap to grow the heap. No-op on some platforms. /
75	AO_API void AO_malloc_enable_mmap(void);
76
77	#ifdef __cplusplus
78	} / extern "C" /
79	#endif
80
81	#endif / !AO_MALLOC_H /
82