blob: f784e112124ee12af8490b91bd3e13bd246eaf82 (
plain)
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
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
#include "Options.h"
// @(#)Malloc.cpp 1.1 10/18/96
#include "Malloc.h"
// Determine the type of dynamic memory manager.
#if defined (ACE_HAS_THREADS)
typedef ACE_Thread_Mutex THREAD_MUTEX;
#else
typedef ACE_Null_Mutex THREAD_MUTEX;
#endif /* ACE_HAS_THREADS */
// ACE_Process_Mutex will work for non-MT platforms.
typedef ACE_Process_Mutex PROCESS_MUTEX;
class MMAP_POOL : public ACE_MMAP_Memory_Pool
// = TITLE
// This class is an "adapter" that passes certain arguments to the
// constructor of ACE_MMAP_Memory_Pool.
{
public:
MMAP_POOL (const char *);
static const char BACKING_STORE[];
};
const char MMAP_POOL::BACKING_STORE[] = "/tmp/test_malloc";
MMAP_POOL::MMAP_POOL (const char *)
: ACE_MMAP_Memory_Pool (BACKING_STORE, // Name of the backing store.
1, // Use fixed addr.
1) // Write each page of backing store.
{
}
// Strategic typedefs for memory allocation.
typedef ACE_Malloc <ACE_Local_Memory_Pool, THREAD_MUTEX> L_ALLOCATOR;
#if !defined (ACE_WIN32)
typedef ACE_Malloc <MMAP_POOL, PROCESS_MUTEX> M_ALLOCATOR;
typedef ACE_Malloc <ACE_Shared_Memory_Pool, PROCESS_MUTEX> SP_ALLOCATOR;
typedef ACE_Malloc <ACE_Shared_Memory_Pool, THREAD_MUTEX> ST_ALLOCATOR;
typedef ACE_Malloc <ACE_Sbrk_Memory_Pool, THREAD_MUTEX> SB_ALLOCATOR;
#else
typedef ACE_Malloc <MMAP_POOL, THREAD_MUTEX> M_ALLOCATOR;
typedef ACE_Malloc <MMAP_POOL, THREAD_MUTEX> SP_ALLOCATOR;
typedef ACE_Malloc <MMAP_POOL, THREAD_MUTEX> ST_ALLOCATOR;
typedef ACE_Malloc <ACE_Local_Memory_Pool, THREAD_MUTEX> SB_ALLOCATOR;
#endif /* ACE_WIN32 */
// Singleton
ACE_Allocator *Malloc::instance_ = 0;
// This is a factory that decides what type of allocator to create.
ACE_Allocator *
Malloc::instance (void)
{
if (Malloc::instance_ == 0)
{
if (Options::instance ()->child ())
Malloc::instance_ = new ACE_Allocator_Adapter<M_ALLOCATOR>;
else if (Options::instance ()->spawn_threads ())
{
if (Options::instance ()->use_sbrk ())
Malloc::instance_ = new ACE_Allocator_Adapter<SB_ALLOCATOR>;
else if (Options::instance ()->use_shmem ())
Malloc::instance_ = new ACE_Allocator_Adapter<ST_ALLOCATOR>;
else
Malloc::instance_ = new ACE_Allocator_Adapter<L_ALLOCATOR>;
}
else if (Options::instance ()->use_mmap ())
Malloc::instance_ = new ACE_Allocator_Adapter<M_ALLOCATOR>;
else // Use Shared_Memory_Pool.
Malloc::instance_ = new ACE_Allocator_Adapter<SP_ALLOCATOR>;
}
return Malloc::instance_;
}
|
