X-Git-Url: http://plrg.eecs.uci.edu/git/?p=c11tester.git;a=blobdiff_plain;f=mymemory.h;h=f2a31865ba85a9272794514de14e3179bb2da01e;hp=1d4c123ef141134bdf246f07b25c965204921154;hb=5fa2efec1354b2781ff0b29460ec8e9b8fa75991;hpb=8497408d26002ec1a9d7cfd42458f92f2cdd9864

diff --git a/mymemory.h b/mymemory.h
index 1d4c123e..f2a31865 100644
--- a/mymemory.h
+++ b/mymemory.h
@@ -4,8 +4,10 @@
 
 #ifndef _MY_MEMORY_H
 #define _MY_MEMORY_H
-#include <stdlib.h>
 #include <limits>
+#include <stddef.h>
+
+#include "config.h"
 
 /** MEMALLOC declares the allocators for a class to allocate
  *	memory in the non-snapshotting heap. */
@@ -21,6 +23,9 @@
 	} \
 	void operator delete[](void *p, size_t size) { \
 		model_free(p); \
+	} \
+	void * operator new(size_t size, void *p) { /* placement new */ \
+		return p; \
 	}
 
 /** SNAPSHOTALLOC declares the allocators for a class to allocate
@@ -37,6 +42,9 @@
 	} \
 	void operator delete[](void *p, size_t size) { \
 		snapshot_free(p); \
+	} \
+	void * operator new(size_t size, void *p) { /* placement new */ \
+		return p; \
 	}
 
 void *model_malloc(size_t size);
@@ -45,11 +53,9 @@ void model_free(void *ptr);
 
 void * snapshot_malloc(size_t size);
 void * snapshot_calloc(size_t count, size_t size);
+void * snapshot_realloc(void *ptr, size_t size);
 void snapshot_free(void *ptr);
 
-void system_free( void * ptr );
-void *system_malloc( size_t size );
-
 /** @brief Provides a non-snapshotting allocator for use in STL classes.
  *
  * The code was adapted from a code example from the book The C++
@@ -61,99 +67,196 @@ void *system_malloc( size_t size );
  * warranty, and with no claim as to its suitability for any purpose.
  */
 template <class T>
-   class MyAlloc {
-     public:
-       // type definitions
-       typedef T        value_type;
-       typedef T*       pointer;
-       typedef const T* const_pointer;
-       typedef T&       reference;
-       typedef const T& const_reference;
-       typedef size_t   size_type;
-       typedef size_t difference_type;
-
-       // rebind allocator to type U
-       template <class U>
-       struct rebind {
-           typedef MyAlloc<U> other;
-       };
-
-       // return address of values
-       pointer address (reference value) const {
-           return &value;
-       }
-       const_pointer address (const_reference value) const {
-           return &value;
-       }
-
-       /* constructors and destructor
-        * - nothing to do because the allocator has no state
-        */
-       MyAlloc() throw() {
-       }
-       MyAlloc(const MyAlloc&) throw() {
-       }
-       template <class U>
-         MyAlloc (const MyAlloc<U>&) throw() {
-       }
-       ~MyAlloc() throw() {
-       }
-
-       // return maximum number of elements that can be allocated
-       size_type max_size () const throw() {
-           return std::numeric_limits<size_t>::max() / sizeof(T);
-       }
-
-       // allocate but don't initialize num elements of type T
-       pointer allocate (size_type num, const void* = 0) {
-           pointer p = ( pointer )model_malloc( num * sizeof( T ) );
-           return p;
-       }
-
-       // initialize elements of allocated storage p with value value
-       void construct (pointer p, const T& value) {
-           // initialize memory with placement new
-           new((void*)p)T(value);
-       }
-
-       // destroy elements of initialized storage p
-       void destroy (pointer p) {
-           // destroy objects by calling their destructor
-           p->~T();
-       }
-
-       // deallocate storage p of deleted elements
-       void deallocate (pointer p, size_type num) {
-           model_free((void*)p);
-       }
-   };
+class ModelAlloc {
+ public:
+	// type definitions
+	typedef T        value_type;
+	typedef T*       pointer;
+	typedef const T* const_pointer;
+	typedef T&       reference;
+	typedef const T& const_reference;
+	typedef size_t   size_type;
+	typedef size_t   difference_type;
+
+	// rebind allocator to type U
+	template <class U>
+	struct rebind {
+		typedef ModelAlloc<U> other;
+	};
+
+	// return address of values
+	pointer address(reference value) const {
+		return &value;
+	}
+	const_pointer address(const_reference value) const {
+		return &value;
+	}
+
+	/* constructors and destructor
+	 * - nothing to do because the allocator has no state
+	 */
+	ModelAlloc() throw() {
+	}
+	ModelAlloc(const ModelAlloc&) throw() {
+	}
+	template <class U>
+	ModelAlloc(const ModelAlloc<U>&) throw() {
+	}
+	~ModelAlloc() throw() {
+	}
+
+	// return maximum number of elements that can be allocated
+	size_type max_size() const throw() {
+		return std::numeric_limits<size_t>::max() / sizeof(T);
+	}
+
+	// allocate but don't initialize num elements of type T
+	pointer allocate(size_type num, const void * = 0) {
+		pointer p = (pointer)model_malloc(num * sizeof(T));
+		return p;
+	}
+
+	// initialize elements of allocated storage p with value value
+	void construct(pointer p, const T& value) {
+		// initialize memory with placement new
+		new((void*)p)T(value);
+	}
+
+	// destroy elements of initialized storage p
+	void destroy(pointer p) {
+		// destroy objects by calling their destructor
+		p->~T();
+	}
+
+	// deallocate storage p of deleted elements
+	void deallocate(pointer p, size_type num) {
+		model_free((void*)p);
+	}
+};
 
 /** Return that all specializations of this allocator are interchangeable. */
- template <class T1, class T2>
- bool operator== (const MyAlloc<T1>&,
-                  const MyAlloc<T2>&) throw() {
-     return true;
- }
+template <class T1, class T2>
+bool operator ==(const ModelAlloc<T1>&,
+		const ModelAlloc<T2>&) throw() {
+	return true;
+}
 
 /** Return that all specializations of this allocator are interchangeable. */
- template <class T1, class T2>
- bool operator!= (const MyAlloc<T1>&,
-                  const MyAlloc<T2>&) throw() {
-     return false;
- }
+template <class T1, class T2>
+bool operator!= (const ModelAlloc<T1>&,
+		const ModelAlloc<T2>&) throw() {
+	return false;
+}
+
+/** @brief Provides a snapshotting allocator for use in STL classes.
+ *
+ * The code was adapted from a code example from the book The C++
+ * Standard Library - A Tutorial and Reference by Nicolai M. Josuttis,
+ * Addison-Wesley, 1999 © Copyright Nicolai M. Josuttis 1999
+ * Permission to copy, use, modify, sell and distribute this software
+ * is granted provided this copyright notice appears in all copies.
+ * This software is provided "as is" without express or implied
+ * warranty, and with no claim as to its suitability for any purpose.
+ */
+template <class T>
+class SnapshotAlloc {
+ public:
+	// type definitions
+	typedef T        value_type;
+	typedef T*       pointer;
+	typedef const T* const_pointer;
+	typedef T&       reference;
+	typedef const T& const_reference;
+	typedef size_t   size_type;
+	typedef size_t   difference_type;
+
+	// rebind allocator to type U
+	template <class U>
+	struct rebind {
+		typedef SnapshotAlloc<U> other;
+	};
+
+	// return address of values
+	pointer address(reference value) const {
+		return &value;
+	}
+	const_pointer address(const_reference value) const {
+		return &value;
+	}
+
+	/* constructors and destructor
+	 * - nothing to do because the allocator has no state
+	 */
+	SnapshotAlloc() throw() {
+	}
+	SnapshotAlloc(const SnapshotAlloc&) throw() {
+	}
+	template <class U>
+	SnapshotAlloc(const SnapshotAlloc<U>&) throw() {
+	}
+	~SnapshotAlloc() throw() {
+	}
+
+	// return maximum number of elements that can be allocated
+	size_type max_size() const throw() {
+		return std::numeric_limits<size_t>::max() / sizeof(T);
+	}
+
+	// allocate but don't initialize num elements of type T
+	pointer allocate(size_type num, const void * = 0) {
+		pointer p = (pointer)snapshot_malloc(num * sizeof(T));
+		return p;
+	}
+
+	// initialize elements of allocated storage p with value value
+	void construct(pointer p, const T& value) {
+		// initialize memory with placement new
+		new((void*)p)T(value);
+	}
+
+	// destroy elements of initialized storage p
+	void destroy(pointer p) {
+		// destroy objects by calling their destructor
+		p->~T();
+	}
+
+	// deallocate storage p of deleted elements
+	void deallocate(pointer p, size_type num) {
+		snapshot_free((void*)p);
+	}
+};
+
+/** Return that all specializations of this allocator are interchangeable. */
+template <class T1, class T2>
+bool operator ==(const SnapshotAlloc<T1>&,
+		const SnapshotAlloc<T2>&) throw() {
+	return true;
+}
+
+/** Return that all specializations of this allocator are interchangeable. */
+template <class T1, class T2>
+bool operator!= (const SnapshotAlloc<T1>&,
+		const SnapshotAlloc<T2>&) throw() {
+	return false;
+}
 
 #ifdef __cplusplus
 extern "C" {
 #endif
-typedef void * mspace;
-extern void* mspace_malloc(mspace msp, size_t bytes);
-extern void mspace_free(mspace msp, void* mem);
-extern void* mspace_realloc(mspace msp, void* mem, size_t newsize);
-extern void* mspace_calloc(mspace msp, size_t n_elements, size_t elem_size);
-extern mspace create_mspace_with_base(void* base, size_t capacity, int locked);
-extern mspace create_mspace(size_t capacity, int locked);
-extern mspace mySpace;
-extern void * basemySpace;
+	typedef void * mspace;
+	extern void * mspace_malloc(mspace msp, size_t bytes);
+	extern void mspace_free(mspace msp, void* mem);
+	extern void * mspace_realloc(mspace msp, void* mem, size_t newsize);
+	extern void * mspace_calloc(mspace msp, size_t n_elements, size_t elem_size);
+	extern mspace create_mspace_with_base(void* base, size_t capacity, int locked);
+	extern mspace create_mspace(size_t capacity, int locked);
+
+#if USE_MPROTECT_SNAPSHOT
+	extern mspace user_snapshot_space;
+#endif
+
+	extern mspace model_snapshot_space;
+
 #ifdef __cplusplus
 };  /* end of extern "C" */
 #endif