Index: gecko-sdk/include/nsIMemory.h |
=================================================================== |
--- gecko-sdk/include/nsIMemory.h (revision 0) |
+++ gecko-sdk/include/nsIMemory.h (revision 0) |
@@ -0,0 +1,212 @@ |
+/* |
+ * DO NOT EDIT. THIS FILE IS GENERATED FROM c:/builds/tinderbox/XR-Mozilla1.8.0-Release/WINNT_5.2_Depend/mozilla/xpcom/base/nsIMemory.idl |
+ */ |
+ |
+#ifndef __gen_nsIMemory_h__ |
+#define __gen_nsIMemory_h__ |
+ |
+ |
+#ifndef __gen_nsISupports_h__ |
+#include "nsISupports.h" |
+#endif |
+ |
+/* For IDL files that don't want to include root IDL files. */ |
+#ifndef NS_NO_VTABLE |
+#define NS_NO_VTABLE |
+#endif |
+ |
+/* starting interface: nsIMemory */ |
+#define NS_IMEMORY_IID_STR "59e7e77a-38e4-11d4-8cf5-0060b0fc14a3" |
+ |
+#define NS_IMEMORY_IID \ |
+ {0x59e7e77a, 0x38e4, 0x11d4, \ |
+ { 0x8c, 0xf5, 0x00, 0x60, 0xb0, 0xfc, 0x14, 0xa3 }} |
+ |
+/** |
+ * |
+ * nsIMemory: interface to allocate and deallocate memory. Also provides |
+ * for notifications in low-memory situations. |
+ * |
+ * The frozen exported symbols NS_Alloc, NS_Realloc, and NS_Free |
+ * provide a more efficient way to access XPCOM memory allocation. Using |
+ * those symbols is preferred to using the methods on this interface. |
+ * |
+ * A client that wishes to be notified of low memory situations (for |
+ * example, because the client maintains a large memory cache that |
+ * could be released when memory is tight) should register with the |
+ * observer service (see nsIObserverService) using the topic |
+ * "memory-pressure". There are three specific types of notications |
+ * that can occur. These types will be passed as the |aData| |
+ * parameter of the of the "memory-pressure" notification: |
+ * |
+ * "low-memory" |
+ * This will be passed as the extra data when the pressure |
+ * observer is being asked to flush for low-memory conditions. |
+ * |
+ * "heap-minimize" |
+ * This will be passed as the extra data when the pressure |
+ * observer is being asked to flush because of a heap minimize |
+ * call. |
+ * |
+ * "alloc-failure" |
+ * This will be passed as the extra data when the pressure |
+ * observer has been asked to flush because a malloc() or |
+ * realloc() has failed. |
+ * |
+ * @status FROZEN |
+ */ |
+class NS_NO_VTABLE nsIMemory : public nsISupports { |
+ public: |
+ |
+ NS_DEFINE_STATIC_IID_ACCESSOR(NS_IMEMORY_IID) |
+ |
+ /** |
+ * Allocates a block of memory of a particular size. If the memory |
+ * cannot be allocated (because of an out-of-memory condition), null |
+ * is returned. |
+ * |
+ * @param size - the size of the block to allocate |
+ * @result the block of memory |
+ */ |
+ /* [noscript, notxpcom] voidPtr alloc (in size_t size); */ |
+ NS_IMETHOD_(void *) Alloc(size_t size) = 0; |
+ |
+ /** |
+ * Reallocates a block of memory to a new size. |
+ * |
+ * @param ptr - the block of memory to reallocate |
+ * @param size - the new size |
+ * @result the reallocated block of memory |
+ * |
+ * If ptr is null, this function behaves like malloc. |
+ * If s is the size of the block to which ptr points, the first |
+ * min(s, size) bytes of ptr's block are copied to the new block. |
+ * If the allocation succeeds, ptr is freed and a pointer to the |
+ * new block returned. If the allocation fails, ptr is not freed |
+ * and null is returned. The returned value may be the same as ptr. |
+ */ |
+ /* [noscript, notxpcom] voidPtr realloc (in voidPtr ptr, in size_t newSize); */ |
+ NS_IMETHOD_(void *) Realloc(void * ptr, size_t newSize) = 0; |
+ |
+ /** |
+ * Frees a block of memory. Null is a permissible value, in which case |
+ * nothing happens. |
+ * |
+ * @param ptr - the block of memory to free |
+ */ |
+ /* [noscript, notxpcom] void free (in voidPtr ptr); */ |
+ NS_IMETHOD_(void) Free(void * ptr) = 0; |
+ |
+ /** |
+ * Attempts to shrink the heap. |
+ * @param immediate - if true, heap minimization will occur |
+ * immediately if the call was made on the main thread. If |
+ * false, the flush will be scheduled to happen when the app is |
+ * idle. |
+ * @return NS_ERROR_FAILURE if 'immediate' is set an the call |
+ * was not on the application's main thread. |
+ */ |
+ /* void heapMinimize (in boolean immediate); */ |
+ NS_IMETHOD HeapMinimize(PRBool immediate) = 0; |
+ |
+ /** |
+ * This predicate can be used to determine if we're in a low-memory |
+ * situation (what constitutes low-memory is platform dependent). This |
+ * can be used to trigger the memory pressure observers. |
+ */ |
+ /* boolean isLowMemory (); */ |
+ NS_IMETHOD IsLowMemory(PRBool *_retval) = 0; |
+ |
+}; |
+ |
+/* Use this macro when declaring classes that implement this interface. */ |
+#define NS_DECL_NSIMEMORY \ |
+ NS_IMETHOD_(void *) Alloc(size_t size); \ |
+ NS_IMETHOD_(void *) Realloc(void * ptr, size_t newSize); \ |
+ NS_IMETHOD_(void) Free(void * ptr); \ |
+ NS_IMETHOD HeapMinimize(PRBool immediate); \ |
+ NS_IMETHOD IsLowMemory(PRBool *_retval); |
+ |
+/* Use this macro to declare functions that forward the behavior of this interface to another object. */ |
+#define NS_FORWARD_NSIMEMORY(_to) \ |
+ NS_IMETHOD_(void *) Alloc(size_t size) { return _to Alloc(size); } \ |
+ NS_IMETHOD_(void *) Realloc(void * ptr, size_t newSize) { return _to Realloc(ptr, newSize); } \ |
+ NS_IMETHOD_(void) Free(void * ptr) { return _to Free(ptr); } \ |
+ NS_IMETHOD HeapMinimize(PRBool immediate) { return _to HeapMinimize(immediate); } \ |
+ NS_IMETHOD IsLowMemory(PRBool *_retval) { return _to IsLowMemory(_retval); } |
+ |
+/* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */ |
+#define NS_FORWARD_SAFE_NSIMEMORY(_to) \ |
+ NS_IMETHOD_(void *) Alloc(size_t size) { return !_to ? NS_ERROR_NULL_POINTER : _to->Alloc(size); } \ |
+ NS_IMETHOD_(void *) Realloc(void * ptr, size_t newSize) { return !_to ? NS_ERROR_NULL_POINTER : _to->Realloc(ptr, newSize); } \ |
+ NS_IMETHOD_(void) Free(void * ptr) { return !_to ? NS_ERROR_NULL_POINTER : _to->Free(ptr); } \ |
+ NS_IMETHOD HeapMinimize(PRBool immediate) { return !_to ? NS_ERROR_NULL_POINTER : _to->HeapMinimize(immediate); } \ |
+ NS_IMETHOD IsLowMemory(PRBool *_retval) { return !_to ? NS_ERROR_NULL_POINTER : _to->IsLowMemory(_retval); } |
+ |
+#if 0 |
+/* Use the code below as a template for the implementation class for this interface. */ |
+ |
+/* Header file */ |
+class nsMemory : public nsIMemory |
+{ |
+public: |
+ NS_DECL_ISUPPORTS |
+ NS_DECL_NSIMEMORY |
+ |
+ nsMemory(); |
+ |
+private: |
+ ~nsMemory(); |
+ |
+protected: |
+ /* additional members */ |
+}; |
+ |
+/* Implementation file */ |
+NS_IMPL_ISUPPORTS1(nsMemory, nsIMemory) |
+ |
+nsMemory::nsMemory() |
+{ |
+ /* member initializers and constructor code */ |
+} |
+ |
+nsMemory::~nsMemory() |
+{ |
+ /* destructor code */ |
+} |
+ |
+/* [noscript, notxpcom] voidPtr alloc (in size_t size); */ |
+NS_IMETHODIMP_(void *) nsMemory::Alloc(size_t size) |
+{ |
+ return NS_ERROR_NOT_IMPLEMENTED; |
+} |
+ |
+/* [noscript, notxpcom] voidPtr realloc (in voidPtr ptr, in size_t newSize); */ |
+NS_IMETHODIMP_(void *) nsMemory::Realloc(void * ptr, size_t newSize) |
+{ |
+ return NS_ERROR_NOT_IMPLEMENTED; |
+} |
+ |
+/* [noscript, notxpcom] void free (in voidPtr ptr); */ |
+NS_IMETHODIMP_(void) nsMemory::Free(void * ptr) |
+{ |
+ return NS_ERROR_NOT_IMPLEMENTED; |
+} |
+ |
+/* void heapMinimize (in boolean immediate); */ |
+NS_IMETHODIMP nsMemory::HeapMinimize(PRBool immediate) |
+{ |
+ return NS_ERROR_NOT_IMPLEMENTED; |
+} |
+ |
+/* boolean isLowMemory (); */ |
+NS_IMETHODIMP nsMemory::IsLowMemory(PRBool *_retval) |
+{ |
+ return NS_ERROR_NOT_IMPLEMENTED; |
+} |
+ |
+/* End of implementation class template. */ |
+#endif |
+ |
+ |
+#endif /* __gen_nsIMemory_h__ */ |
Property changes on: gecko-sdk\include\nsIMemory.h |
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Added: svn:eol-style |
+ LF |