1 files changed, 107 insertions, 0 deletions
diff --git a/ACE/apps/JAWS3/jaws3/Cached_Allocator_T.h b/ACE/apps/JAWS3/jaws3/Cached_Allocator_T.h
new file mode 100644
index 00000000000..adc03508dff
--- /dev/null
+++ b/ACE/apps/JAWS3/jaws3/Cached_Allocator_T.h
@@ -0,0 +1,107 @@
+/* -*- c++ -*- */
+// $Id$
+
+#ifndef JAWS_CACHED_ALLOCATOR_T_H
+#define JAWS_CACHED_ALLOCATOR_T_H
+
+#include "ace/ACE.h"
+#include "ace/Synch.h"
+#include "ace/Malloc.h"
+#include "ace/Free_List.h"
+
+#define JAWS_DEFAULT_ALLOCATOR_CHUNKS 10
+#define JAWS_CACHED_ALLOCATOR(T) \
+        JAWS_Cached_Allocator< T, ACE_SYNCH_NULL_MUTEX >
+
+template <class T, class ACE_LOCK>
+class JAWS_Cached_Allocator : public ACE_New_Allocator
+// = TITLE
+//   Create a cached memory pool with <n_chunks> chunks each with
+//   sizeof (<TYPE>) size.
+//
+// = DESCRIPTION
+//   This class enables caching of dynamically allocated,
+//   fixed-sized classes.
+{
+public:
+
+  JAWS_Cached_Allocator (size_t n_chunks = JAWS_DEFAULT_ALLOCATOR_CHUNKS);
+
+  ~JAWS_Cached_Allocator (void);
+
+  void* malloc (size_t);
+  // get a chunk of memory from free store.
+
+  void free (void *);
+  // return a chunk of memory back to free store.
+
+protected:
+
+  char * get_next_pool (char *pool);
+
+  void set_next_pool (char *pool, char *next_pool);
+
+  void extend_pool (void);
+
+private:
+
+  size_t pool_size_;
+
+  char *pool_head_;
+  // Head of memory pool.
+
+  char *pool_tail_;
+  // Tail of memory pool.
+
+  ACE_Locked_Free_List<ACE_Cached_Mem_Pool_Node<T>, ACE_LOCK> free_list_;
+  // Maintain a cached memory free list.
+
+};
+
+
+
+template <class T>
+class JAWS_TSS_Cached_Allocator : public ACE_New_Allocator
+// = TITLE
+//   Create a thread specific cached memory pool with <n_chunks>
+//   chunks each with sizeof (<TYPE>) size.
+//
+// = DESCRIPTION
+//   This class enables caching of dynamically allocated,
+//   fixed-sized classes.
+{
+public:
+
+  JAWS_TSS_Cached_Allocator (size_t n_chunks = JAWS_DEFAULT_ALLOCATOR_CHUNKS);
+
+  ~JAWS_TSS_Cached_Allocator (void);
+
+  void * malloc (size_t);
+  // get a chunk of memory from free store.
+
+  void free (void *);
+  // return a chunk of memory back to free store.
+
+protected:
+
+  JAWS_Cached_Allocator<T, ACE_SYNCH_NULL_MUTEX> * ts_allocator (void);
+
+private:
+
+  size_t n_chunks_;
+
+  ACE_TSS_TYPE (JAWS_CACHED_ALLOCATOR(T)) ts_allocator_;
+
+};
+
+
+#if defined (ACE_TEMPLATES_REQUIRE_SOURCE)
+#include "jaws3/Cached_Allocator_T.cpp"
+#endif /* ACE_TEMPLATES_REQUIRE_SOURCE */
+
+#if defined (ACE_TEMPLATES_REQUIRE_PRAGMA)
+#pragma implementation ("Cached_Allocator_T.cpp")
+#endif /* ACE_TEMPLATES_REQUIRE_PRAGMA */
+
+
+#endif /* JAWS_CACHED_ALLOCATOR_T_H */