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git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@7212 e03df62e-2008-0410-955e-edbf42e46eb7
This commit is contained in:
brain 2007-06-02 15:05:49 +00:00
parent 115c025e67
commit 72948525ec
1 changed files with 13 additions and 3 deletions
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16
win/inspircd_memory_functions.cpp
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@ -1,14 +1,24 @@
// Use the global heap for this process for all allocate/free operations.
#include "inspircd_win32wrapper.h"
#include <exception>
#include <new>
#include <new.h>
/** On windows, all dll files and executables have their own private heap,
* whereas on POSIX systems, shared objects loaded into an executable share
* the executable's heap. This means that if we pass an arbitrary pointer to
* a windows DLL which is not allocated in that dll, without some form of
* marshalling, we get a page fault. To fix this, these overrided operators
* new and delete use the windows HeapAlloc and HeapFree functions to claim
* memory from the windows global heap. This makes windows 'act like' POSIX
* when it comes to memory usage between dlls and exes.
*/
void * ::operator new(size_t iSize)
{
void* ptr = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, iSize); // zero memory for unix compatibility
void* ptr = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, iSize); /* zero memory for unix compatibility */
/* This is the correct behaviour according to C++ standards for out of memory,
* not returning null -- Brain*/
* not returning null -- Brain
*/
if (!ptr)
throw std::bad_alloc();
else