| 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
|
| ___________________________________________________________________
|
| Added: svn:eol-style
|
| + LF
|
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