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utils/tfstats/memdbg.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: code to track allocations via replacing the global new operator
+//	some of this code was written by Paul Andre LeBlanc 
+//	<paul.a.leblanc@sympatico.ca> I got it off of dejanews.com
+//	usage: new TRACKED object-type
+//
+// $Workfile:     $
+// $Date:         $
+//
+//------------------------------------------------------------------------------------------------------
+// $Log: $
+//
+// $NoKeywords: $
+//=============================================================================//
+#include <new.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <iostream.h>
+
+
+#ifdef _DEBUG
+#ifdef _MEMDEBUG
+#define _MDEBUG
+#endif
+#endif
+
+#ifdef _MDEBUG
+static int numBytesAllocated=0;
+//these were written by me, wes cumberland, not paul andre leblanc
+void * operator new(size_t size)
+{
+	void *ptr = malloc(size);
+	numBytesAllocated+=size;
+	return ptr;
+}
+
+void * operator new[](size_t size)
+{
+	void *ptr = malloc(size);
+	numBytesAllocated+=size;
+	return ptr;
+}
+
+void operator delete(void* ptr)
+{
+	 free(ptr);
+}
+
+void operator delete[](void* ptr)
+{
+	free(ptr);
+}
+
+
+//this code will track allocations
+//this code was written by Paul Andre LeBlanc <paul.a.leblanc@sympatico.ca>
+//I got it off of dejanews.com
+void *operator new(size_t size, const char *file, const int line) 
+{
+  void *ptr = new char[size];
+  numBytesAllocated+=size;
+  cout << "new: Allocating " << size << " bytes in file " << file << ", line " << line << ", address is " << ptr << " (" << numBytesAllocated<<" total allocated)"<< endl;
+  return ptr;
+}
+ 
+void *operator new[](size_t size, const char *file, const int line) {
+  void *ptr = new char[size];
+  numBytesAllocated+=size;
+  cout << "new[]: Allocating " << size << " bytes in file " << file << ", line " << line << ", address is " << ptr << " (" << numBytesAllocated<<" total allocated)" << endl;
+  return ptr;
+}
+ 
+void operator delete(void *ptr, const char *file, const int line) {
+  cout << "delete: Freeing memory allocated at file " << file << ", line " << line << ", address is " << ptr << endl;
+  delete [] (char *) ptr;
+}
+ 
+void operator delete[](void *ptr, const char *file, const int line) 
+{  
+	cout << "delete[]: Freeing memory allocated at file " << file << ", line " << line << ", address is " << ptr << endl;
+	delete [] (char *) ptr;
+}
+
+#endif
+//------------------------------------------------------------------------------------------------------
+// Function:	TFStats_win32_new_handler
+// Purpose:	this function will be called if TFStats runs out of memory (unlikely)
+//		this is a win32 specific version, the linux version does not pass an argument
+// Input:	sz - the size of the allocation that failed
+// Output:	int
+//------------------------------------------------------------------------------------------------------
+int TFStats_win32_new_handler(size_t sz)
+{
+	printf("TFStats ran out of memory trying to allocate %li bytes\n",sz);
+	return 0;
+}
+//------------------------------------------------------------------------------------------------------
+// Function:	TFStats_linux_new_handler
+// Purpose:	this function will be called if TFStats runs out of memory (unlikely)
+//		this is a linux specific version, the win32 version passes an argument
+//------------------------------------------------------------------------------------------------------
+void TFStats_linux_new_handler(void)
+{
+	printf("TFStats ran out of memory!\n");
+}
+
+
+//------------------------------------------------------------------------------------------------------
+// Function:	TFStats_setNewHandler
+// Purpose:	 sets the new handler to the TFStats new handler
+//------------------------------------------------------------------------------------------------------
+void TFStats_setNewHandler()
+{
+#ifdef WIN32
+	_set_new_handler(TFStats_win32_new_handler);
+	_set_new_mode(1);
+#else
+	std::set_new_handler(TFStats_linux_new_handler);
+	//std::set_new_mode(1);
+#endif
+}