diff options
Diffstat (limited to 'win/inspircd_memory_functions.cpp')
-rw-r--r-- | win/inspircd_memory_functions.cpp | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/win/inspircd_memory_functions.cpp b/win/inspircd_memory_functions.cpp index 29c37a42e..afff4287e 100644 --- a/win/inspircd_memory_functions.cpp +++ b/win/inspircd_memory_functions.cpp @@ -1 +1,44 @@ -/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* InspIRCd: (C) 2002-2007 InspIRCd Development Team
* See: http://www.inspircd.org/wiki/index.php/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
#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 */
/* This is the correct behaviour according to C++ standards for out of memory,
* not returning null -- Brain
*/
if (!ptr)
throw std::bad_alloc();
else
return ptr;
}
void ::operator delete(void * ptr)
{
HeapFree(GetProcessHeap(), 0, ptr);
}
\ No newline at end of file +/* +------------------------------------+ + * | Inspire Internet Relay Chat Daemon | + * +------------------------------------+ + * + * InspIRCd: (C) 2002-2007 InspIRCd Development Team + * See: http://www.inspircd.org/wiki/index.php/Credits + * + * This program is free but copyrighted software; see + * the file COPYING for details. + * + * --------------------------------------------------- + */ + +#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 */ + /* This is the correct behaviour according to C++ standards for out of memory, + * not returning null -- Brain + */ + if (!ptr) + throw std::bad_alloc(); + else + return ptr; +} + +void ::operator delete(void * ptr) +{ + HeapFree(GetProcessHeap(), 0, ptr); +} |