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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 */
// Strategic typedefs for memory allocation.
typedef ACE_Malloc <ACE_LOCAL_MEMORY_POOL, THREAD_MUTEX> L_ALLOCATOR;
typedef ACE_Malloc <ACE_MMAP_MEMORY_POOL, ACE_Process_Mutex> M_ALLOCATOR;
#if defined (ACE_LACKS_SYSV_SHMEM)
typedef ACE_Malloc <ACE_MMAP_MEMORY_POOL, THREAD_MUTEX> SP_ALLOCATOR;
typedef ACE_Malloc <ACE_MMAP_MEMORY_POOL, THREAD_MUTEX> ST_ALLOCATOR;
#else
typedef ACE_Malloc <ACE_SHARED_MEMORY_POOL, ACE_Process_Mutex> SP_ALLOCATOR;
typedef ACE_Malloc <ACE_SHARED_MEMORY_POOL, THREAD_MUTEX> ST_ALLOCATOR;
#endif /* ACE_LACKS_SYSV_SHMEM */
#if defined (ACE_LACKS_SBRK)
typedef ACE_Malloc <ACE_LOCAL_MEMORY_POOL, THREAD_MUTEX> SB_ALLOCATOR;
#else
typedef ACE_Malloc <ACE_SBRK_MEMORY_POOL, THREAD_MUTEX> SB_ALLOCATOR;
#endif /* ACE_LACKS_SBRK */
// 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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