Initial community commit

Src/Winamp/MemoryManager.cpp

@@ -0,0 +1,69 @@
+/** (c) Nullsoft, Inc.         C O N F I D E N T I A L
+ ** Filename: 
+ ** Project:
+ ** Description:
+ ** Author:
+ ** Created:
+ **/
+#include "main.h"
+#include "MemoryManager.h"
+#include "api.h"
+
+#include <api/syscb/callbacks/syscb.h>
+#include <api/syscb/callbacks/sysmemcb.h>
+
+void *MemoryManager::Malloc(size_t size)
+{
+	if (size <= 0) return NULL;
+	void *ret = calloc(size, 1);
+	if (ret != NULL)
+		WASABI_API_SYSCB->syscb_issueCallback(SysCallback::SYSMEM, SysMemCallback::ONMALLOC, (intptr_t)ret, size);
+	return ret;
+}
+
+void MemoryManager::Free(void *ptr)
+{
+	if (ptr != NULL)
+		WASABI_API_SYSCB->syscb_issueCallback(SysCallback::SYSMEM, SysMemCallback::ONFREE, (intptr_t)ptr);
+	free(ptr);
+}
+
+void *MemoryManager::Realloc(void *ptr, size_t newsize)
+{
+	void *ptrs[2] = {ptr, 0};
+	void *new_memory = realloc(ptr, newsize);
+	if (new_memory)
+		ptrs[1] = new_memory;
+	else
+	{
+		new_memory = calloc(newsize, 1);
+		if (new_memory)
+		{
+			memcpy(new_memory, ptr, _msize(ptr));
+			ptrs[1] = new_memory;
+		}
+	}
+
+	if (!(ptrs[0] == NULL && ptrs[1] == NULL))
+		WASABI_API_SYSCB->syscb_issueCallback(SysCallback::SYSMEM, SysMemCallback::ONREALLOC, (intptr_t)ptrs, newsize);
+
+	return new_memory;
+}
+
+void MemoryManager::MemChanged(void *ptr)
+{
+	if (ptr == NULL) return ;
+	WASABI_API_SYSCB->syscb_issueCallback(SysCallback::SYSMEM, SysMemCallback::ONCHANGE, (intptr_t)ptr);
+}
+
+#ifdef CBCLASS
+#undef CBCLASS
+#endif
+
+#define CBCLASS MemoryManager
+START_DISPATCH;
+  CB(API_MEMMGR_SYSMALLOC, Malloc);
+  VCB(API_MEMMGR_SYSFREE, Free);
+  CB(API_MEMMGR_SYSREALLOC, Realloc);
+  VCB(API_MEMMGR_SYSMEMCHANGED, MemChanged);
+END_DISPATCH;