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- /*
- * DO NOT EDIT. THIS FILE IS GENERATED FROM nsIStorageStream.idl
- */
-
- #ifndef __gen_nsIStorageStream_h__
- #define __gen_nsIStorageStream_h__
-
-
- #ifndef __gen_nsISupports_h__
- #include "nsISupports.h"
- #endif
-
- #ifndef __gen_nsrootidl_h__
- #include "nsrootidl.h"
- #endif
-
- /* For IDL files that don't want to include root IDL files. */
- #ifndef NS_NO_VTABLE
- #define NS_NO_VTABLE
- #endif
- class nsIMemory; /* forward declaration */
-
- class nsIInputStream; /* forward declaration */
-
- class nsIOutputStream; /* forward declaration */
-
-
- /* starting interface: nsIStorageStream */
- #define NS_ISTORAGESTREAM_IID_STR "604ad9d0-753e-11d3-90ca-34278643278f"
-
- #define NS_ISTORAGESTREAM_IID \
- {0x604ad9d0, 0x753e, 0x11d3, \
- { 0x90, 0xca, 0x34, 0x27, 0x86, 0x43, 0x27, 0x8f }}
-
- /**
- * The nsIStorageStream interface maintains an internal data buffer that can be
- * filled using a single output stream. One or more independent input streams
- * can be created to read the data from the buffer non-destructively.
- */
- class NS_NO_VTABLE nsIStorageStream : public nsISupports {
- public:
-
- NS_DEFINE_STATIC_IID_ACCESSOR(NS_ISTORAGESTREAM_IID)
-
- /**
- *
- * Initialize the stream, setting up the amount of space that will be
- * allocated for the stream's backing-store.
- *
- * @param segmentSize
- * Size of each segment. Must be a power of two.
- * @param maxSize
- * Maximum total size of this stream. length will always be less
- * than or equal to this value. Passing PR_UINT32_MAX is safe.
- * @param segmentAllocator
- * Which allocator to use for the segments. May be null, in which
- * case a default allocator will be used.
- */
- /* void init (in PRUint32 segmentSize, in PRUint32 maxSize, in nsIMemory segmentAllocator); */
- NS_IMETHOD Init(PRUint32 segmentSize, PRUint32 maxSize, nsIMemory *segmentAllocator) = 0;
-
- /**
- * Get a reference to the one and only output stream for this instance.
- * The zero-based startPosition argument is used is used to set the initial
- * write cursor position. The startPosition cannot be set larger than the
- * current buffer length. Calling this method has the side-effect of
- * truncating the internal buffer to startPosition bytes.
- */
- /* nsIOutputStream getOutputStream (in PRInt32 startPosition); */
- NS_IMETHOD GetOutputStream(PRInt32 startPosition, nsIOutputStream **_retval) = 0;
-
- /**
- * Create a new input stream to read data (written by the singleton output
- * stream) from the internal buffer. Multiple, independent input streams
- * can be created.
- */
- /* nsIInputStream newInputStream (in PRInt32 startPosition); */
- NS_IMETHOD NewInputStream(PRInt32 startPosition, nsIInputStream **_retval) = 0;
-
- /**
- * The length attribute indicates the total number of bytes stored in the
- * nsIStorageStream internal buffer, regardless of any consumption by input
- * streams. Assigning to the length field can be used to truncate the
- * buffer data, but can not be used when either the instance's output
- * stream is in use.
- *
- * @See #writeInProgress */
- /* attribute PRUint32 length; */
- NS_IMETHOD GetLength(PRUint32 *aLength) = 0;
- NS_IMETHOD SetLength(PRUint32 aLength) = 0;
-
- /**
- * True, when output stream has not yet been Close'ed
- */
- /* readonly attribute boolean writeInProgress; */
- NS_IMETHOD GetWriteInProgress(PRBool *aWriteInProgress) = 0;
-
- };
-
- /* Use this macro when declaring classes that implement this interface. */
- #define NS_DECL_NSISTORAGESTREAM \
- NS_IMETHOD Init(PRUint32 segmentSize, PRUint32 maxSize, nsIMemory *segmentAllocator); \
- NS_IMETHOD GetOutputStream(PRInt32 startPosition, nsIOutputStream **_retval); \
- NS_IMETHOD NewInputStream(PRInt32 startPosition, nsIInputStream **_retval); \
- NS_IMETHOD GetLength(PRUint32 *aLength); \
- NS_IMETHOD SetLength(PRUint32 aLength); \
- NS_IMETHOD GetWriteInProgress(PRBool *aWriteInProgress);
-
- /* Use this macro to declare functions that forward the behavior of this interface to another object. */
- #define NS_FORWARD_NSISTORAGESTREAM(_to) \
- NS_IMETHOD Init(PRUint32 segmentSize, PRUint32 maxSize, nsIMemory *segmentAllocator) { return _to Init(segmentSize, maxSize, segmentAllocator); } \
- NS_IMETHOD GetOutputStream(PRInt32 startPosition, nsIOutputStream **_retval) { return _to GetOutputStream(startPosition, _retval); } \
- NS_IMETHOD NewInputStream(PRInt32 startPosition, nsIInputStream **_retval) { return _to NewInputStream(startPosition, _retval); } \
- NS_IMETHOD GetLength(PRUint32 *aLength) { return _to GetLength(aLength); } \
- NS_IMETHOD SetLength(PRUint32 aLength) { return _to SetLength(aLength); } \
- NS_IMETHOD GetWriteInProgress(PRBool *aWriteInProgress) { return _to GetWriteInProgress(aWriteInProgress); }
-
- /* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
- #define NS_FORWARD_SAFE_NSISTORAGESTREAM(_to) \
- NS_IMETHOD Init(PRUint32 segmentSize, PRUint32 maxSize, nsIMemory *segmentAllocator) { return !_to ? NS_ERROR_NULL_POINTER : _to->Init(segmentSize, maxSize, segmentAllocator); } \
- NS_IMETHOD GetOutputStream(PRInt32 startPosition, nsIOutputStream **_retval) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetOutputStream(startPosition, _retval); } \
- NS_IMETHOD NewInputStream(PRInt32 startPosition, nsIInputStream **_retval) { return !_to ? NS_ERROR_NULL_POINTER : _to->NewInputStream(startPosition, _retval); } \
- NS_IMETHOD GetLength(PRUint32 *aLength) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetLength(aLength); } \
- NS_IMETHOD SetLength(PRUint32 aLength) { return !_to ? NS_ERROR_NULL_POINTER : _to->SetLength(aLength); } \
- NS_IMETHOD GetWriteInProgress(PRBool *aWriteInProgress) { return !_to ? NS_ERROR_NULL_POINTER : _to->GetWriteInProgress(aWriteInProgress); }
-
- #if 0
- /* Use the code below as a template for the implementation class for this interface. */
-
- /* Header file */
- class nsStorageStream : public nsIStorageStream
- {
- public:
- NS_DECL_ISUPPORTS
- NS_DECL_NSISTORAGESTREAM
-
- nsStorageStream();
-
- private:
- ~nsStorageStream();
-
- protected:
- /* additional members */
- };
-
- /* Implementation file */
- NS_IMPL_ISUPPORTS1(nsStorageStream, nsIStorageStream)
-
- nsStorageStream::nsStorageStream()
- {
- /* member initializers and constructor code */
- }
-
- nsStorageStream::~nsStorageStream()
- {
- /* destructor code */
- }
-
- /* void init (in PRUint32 segmentSize, in PRUint32 maxSize, in nsIMemory segmentAllocator); */
- NS_IMETHODIMP nsStorageStream::Init(PRUint32 segmentSize, PRUint32 maxSize, nsIMemory *segmentAllocator)
- {
- return NS_ERROR_NOT_IMPLEMENTED;
- }
-
- /* nsIOutputStream getOutputStream (in PRInt32 startPosition); */
- NS_IMETHODIMP nsStorageStream::GetOutputStream(PRInt32 startPosition, nsIOutputStream **_retval)
- {
- return NS_ERROR_NOT_IMPLEMENTED;
- }
-
- /* nsIInputStream newInputStream (in PRInt32 startPosition); */
- NS_IMETHODIMP nsStorageStream::NewInputStream(PRInt32 startPosition, nsIInputStream **_retval)
- {
- return NS_ERROR_NOT_IMPLEMENTED;
- }
-
- /* attribute PRUint32 length; */
- NS_IMETHODIMP nsStorageStream::GetLength(PRUint32 *aLength)
- {
- return NS_ERROR_NOT_IMPLEMENTED;
- }
- NS_IMETHODIMP nsStorageStream::SetLength(PRUint32 aLength)
- {
- return NS_ERROR_NOT_IMPLEMENTED;
- }
-
- /* readonly attribute boolean writeInProgress; */
- NS_IMETHODIMP nsStorageStream::GetWriteInProgress(PRBool *aWriteInProgress)
- {
- return NS_ERROR_NOT_IMPLEMENTED;
- }
-
- /* End of implementation class template. */
- #endif
-
- // Factory method
- NS_COM nsresult
- NS_NewStorageStream(PRUint32 segmentSize, PRUint32 maxSize, nsIStorageStream **result);
-
- #endif /* __gen_nsIStorageStream_h__ */
-