summaryrefslogtreecommitdiff
path: root/ACE/examples/Shared_Malloc/Malloc.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'ACE/examples/Shared_Malloc/Malloc.cpp')
-rw-r--r--ACE/examples/Shared_Malloc/Malloc.cpp69
1 files changed, 69 insertions, 0 deletions
diff --git a/ACE/examples/Shared_Malloc/Malloc.cpp b/ACE/examples/Shared_Malloc/Malloc.cpp
new file mode 100644
index 00000000000..4499d9fa11b
--- /dev/null
+++ b/ACE/examples/Shared_Malloc/Malloc.cpp
@@ -0,0 +1,69 @@
+// $Id$
+
+#include "Options.h"
+#include "Malloc.h"
+#include "ace/MMAP_Memory_Pool.h"
+#include "ace/Local_Memory_Pool.h"
+
+#ifndef ACE_LACKS_SYSV_SHMEM
+# include "ace/Shared_Memory_Pool.h"
+#endif /* !ACE_LACKS_SYSV_SHMEM */
+
+#ifndef ACE_LACKS_SBRK
+# include "ace/Sbrk_Memory_Pool.h"
+#endif /* !ACE_LACKS_SBRK */
+
+#include "ace/Process_Mutex.h"
+#include "ace/Malloc_T.h"
+
+ACE_RCSID(Shared_Malloc, Malloc, "$Id$")
+
+// Strategic typedefs for memory allocation.
+
+typedef ACE_Malloc <ACE_LOCAL_MEMORY_POOL, ACE_SYNCH_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, ACE_SYNCH_MUTEX> SP_ALLOCATOR;
+typedef ACE_Malloc <ACE_MMAP_MEMORY_POOL, ACE_SYNCH_MUTEX> ST_ALLOCATOR;
+#else
+typedef ACE_Malloc <ACE_SHARED_MEMORY_POOL, ACE_Process_Mutex> SP_ALLOCATOR;
+typedef ACE_Malloc <ACE_SHARED_MEMORY_POOL, ACE_SYNCH_MUTEX> ST_ALLOCATOR;
+#endif /* ACE_LACKS_SYSV_SHMEM */
+
+#if defined (ACE_LACKS_SBRK)
+typedef ACE_Malloc <ACE_LOCAL_MEMORY_POOL, ACE_SYNCH_MUTEX> SB_ALLOCATOR;
+#else
+typedef ACE_Malloc <ACE_SBRK_MEMORY_POOL, ACE_SYNCH_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_;
+}
+