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#include "Options.h"
// $Id$
#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_;
}
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