From f2ca1d3b19ca5b7de3ee41360740b0dd8d3dbc08 Mon Sep 17 00:00:00 2001
From: Pietro Incardona <incardon@mpi-cbg.de>
Date: Wed, 22 Apr 2015 18:43:04 +0200
Subject: [PATCH] Add PtrMemory.hpp
---
src/memory/PtrMemory.hpp | 127 +++++++++++++++++++++++++++++++++++++++
1 file changed, 127 insertions(+)
create mode 100644 src/memory/PtrMemory.hpp
diff --git a/src/memory/PtrMemory.hpp b/src/memory/PtrMemory.hpp
new file mode 100644
index 0000000..156739f
--- /dev/null
+++ b/src/memory/PtrMemory.hpp
@@ -0,0 +1,127 @@
+/*
+ * PtrMemory.hpp
+ *
+ * Created on: Apr 15, 2015
+ * Author: Pietro Incardona
+ */
+
+#ifndef PTRMEMORY_HPP_
+#define PTRMEMORY_HPP_
+
+
+/**
+ * \brief This class give memory from a preallocated memory, memory destruction is not performed
+ *
+ * Useful to shape pieces of memory
+ *
+ * Usage:
+ *
+ * void * ptr = new int[1000]
+ *
+ * PtrMemory m = new PtrMemory(ptr,1000);
+ *
+ * m.allocate();
+ * int * ptr = m.getPointer();
+ * *ptr[999] = 1000;
+ * ....
+ *
+ * delete[] ptr;
+ *
+ */
+
+#include "config.h"
+#include "memory.hpp"
+#include <cstddef>
+#include <cstdint>
+#include <iostream>
+
+#ifdef MEMLEAK_CHECK
+#include "Memleak_check.hpp"
+#endif
+
+class PtrMemory : public memory
+{
+ //! Size of the pointed memory
+ size_t spm;
+
+ //! Pointed memory
+ void * dm;
+
+ //! Size of the memory
+ size_t sz;
+
+ //! Reference counter
+ long int ref_cnt;
+
+ //! copy from same Heap to Heap
+ bool copyDeviceToDevice(PtrMemory & m);
+
+ //! copy from Pointer to Heap
+ bool copyFromPointer(void * ptr, size_t sz);
+
+ //! Set alignment the memory will be aligned with this number
+ void setAlignment(size_t align);
+
+public:
+
+ //! allocate memory
+ virtual bool allocate(size_t sz);
+ //! destroy memory
+ virtual void destroy();
+ //! copy memory
+ virtual bool copy(memory & m);
+ //! the the size of the allocated memory
+ virtual size_t size();
+ //! resize the memory allocated
+ virtual bool resize(size_t sz);
+ //! get a readable pointer with the data
+ virtual void * getPointer();
+
+ //! Increment the reference counter
+ virtual void incRef()
+ {ref_cnt++;}
+
+ //! Decrement the reference counter
+ virtual void decRef()
+ {ref_cnt--;}
+
+ //! Return the reference counter
+ virtual long int ref()
+ {
+ return ref_cnt;
+ }
+
+ // Default constructor
+ PtrMemory():spm(0),dm(NULL),sz(0),ref_cnt(0)
+ {
+#ifdef MEMLEAK_CHECK
+ if (process_to_print == process_v_cl)
+ std::cout << "Creating PtrMemory: " << this << "\n";
+#endif
+ };
+
+ //! Constructor, we choose a default alignment of 32 for avx
+ PtrMemory(void * ptr, size_t sz):spm(sz),dm(ptr),sz(0),ref_cnt(0)
+ {
+#ifdef MEMLEAK_CHECK
+ if (process_to_print == process_v_cl)
+ std::cout << "Creating PtrMemory: " << this << "\n";
+#endif
+ };
+
+ ~PtrMemory()
+ {
+#ifdef MEMLEAK_CHECK
+ if (process_to_print == process_v_cl)
+ std::cout << "Delete PtrMemory: " << this << "\n";
+#endif
+
+ if(ref_cnt == 0)
+ destroy();
+ else
+ std::cerr << "Error: " << __FILE__ << " " << __LINE__ << " destroying a live object" << "\n";
+ };
+};
+
+
+#endif /* PTRMEMORY_HPP_ */
--
GitLab