1 files changed, 141 insertions, 0 deletions
diff --git a/storage/ndb/src/kernel/vm/CArray.hpp b/storage/ndb/src/kernel/vm/CArray.hpp
new file mode 100644
index 00000000000..a6e84e2c041
--- /dev/null
+++ b/storage/ndb/src/kernel/vm/CArray.hpp
@@ -0,0 +1,141 @@
+/* Copyright (C) 2003 MySQL AB
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+#ifndef CARRAY_HPP
+#define CARRAY_HPP
+
+/**
+ * Template class used for implementing an c - array
+ */
+template <class T>
+class CArray {
+public:
+  CArray();
+  ~CArray();
+  
+  /**
+   * Set the size of the pool
+   *
+   * Note, can currently only be called once
+   */
+  bool setSize(Uint32 noOfElements);
+
+  /**
+   * Get size
+   */
+  Uint32 getSize() const;
+  
+  /**
+   * Update p value for ptr according to i value 
+   */
+  void getPtr(Ptr<T> &) const;
+  
+  /**
+   * Get pointer for i value
+   */
+  T * getPtr(Uint32 i) const;
+
+  /**
+   * Update p & i value for ptr according to <b>i</b> value 
+   */
+  void getPtr(Ptr<T> &, Uint32 i) const;
+
+private:
+  Uint32 size;
+  T * theArray;
+};
+
+template <class T>
+inline
+CArray<T>::CArray(){
+  size = 0;
+  theArray = 0;
+}
+
+template <class T>
+inline
+CArray<T>::~CArray(){
+  if(theArray != 0){
+    NdbMem_Free(theArray);
+    theArray = 0;
+  }
+}
+
+/**
+ * Set the size of the pool
+ *
+ * Note, can currently only be called once
+ */
+template <class T>
+inline
+bool
+CArray<T>::setSize(Uint32 noOfElements){
+  if(size == noOfElements)
+    return true;
+  
+  theArray = (T *)NdbMem_Allocate(noOfElements * sizeof(T));
+  if(theArray == 0)
+    return false;
+  size = noOfElements;
+  return true;
+}
+
+template<class T>
+inline
+Uint32
+CArray<T>::getSize() const {
+  return size;
+}
+
+template <class T>
+inline
+void
+CArray<T>::getPtr(Ptr<T> & ptr) const {
+  const Uint32 i = ptr.i;
+  if(i < size){
+    ptr.p = &theArray[i];
+    return;
+  } else {
+    ErrorReporter::handleAssert("CArray<T>::getPtr", __FILE__, __LINE__);
+  }
+}
+  
+template <class T>
+inline
+T * 
+CArray<T>::getPtr(Uint32 i) const {
+  if(i < size){
+    return &theArray[i];
+  } else {
+    ErrorReporter::handleAssert("CArray<T>::getPtr", __FILE__, __LINE__);
+    return 0;
+  }
+}
+
+template <class T>
+inline
+void
+CArray<T>::getPtr(Ptr<T> & ptr, Uint32 i) const {
+  ptr.i = i;
+  if(i < size){
+    ptr.p = &theArray[i];
+    return;
+  } else {
+    ErrorReporter::handleAssert("CArray<T>::getPtr", __FILE__, __LINE__);
+  }
+}
+
+#endif