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- /*
- * DO NOT EDIT. THIS FILE IS GENERATED FROM nsIAsyncInputStream.idl
- */
-
- #ifndef __gen_nsIAsyncInputStream_h__
- #define __gen_nsIAsyncInputStream_h__
-
-
- #ifndef __gen_nsIInputStream_h__
- #include "nsIInputStream.h"
- #endif
-
- /* For IDL files that don't want to include root IDL files. */
- #ifndef NS_NO_VTABLE
- #define NS_NO_VTABLE
- #endif
- class nsIInputStreamCallback; /* forward declaration */
-
- class nsIEventTarget; /* forward declaration */
-
-
- /* starting interface: nsIAsyncInputStream */
- #define NS_IASYNCINPUTSTREAM_IID_STR "15a15329-00de-44e8-ab06-0d0b0d43dc5b"
-
- #define NS_IASYNCINPUTSTREAM_IID \
- {0x15a15329, 0x00de, 0x44e8, \
- { 0xab, 0x06, 0x0d, 0x0b, 0x0d, 0x43, 0xdc, 0x5b }}
-
- /**
- * If an input stream is non-blocking, it may return NS_BASE_STREAM_WOULD_BLOCK
- * when read. The caller must then wait for the stream to have some data to
- * read. If the stream implements nsIAsyncInputStream, then the caller can use
- * this interface to request an asynchronous notification when the stream
- * becomes readable or closed (via the AsyncWait method).
- *
- * While this interface is almost exclusively used with non-blocking streams, it
- * is not necessary that nsIInputStream::isNonBlocking return true. Nor is it
- * necessary that a non-blocking nsIInputStream implementation also implement
- * nsIAsyncInputStream.
- */
- class NS_NO_VTABLE nsIAsyncInputStream : public nsIInputStream {
- public:
-
- NS_DEFINE_STATIC_IID_ACCESSOR(NS_IASYNCINPUTSTREAM_IID)
-
- /**
- * This method closes the stream and sets its internal status. If the
- * stream is already closed, then this method is ignored. Once the stream
- * is closed, the stream's status cannot be changed. Any successful status
- * code passed to this method is treated as NS_BASE_STREAM_CLOSED, which
- * has an effect equivalent to nsIInputStream::close.
- *
- * NOTE: this method exists in part to support pipes, which have both an
- * input end and an output end. If the input end of a pipe is closed, then
- * writes to the output end of the pipe will fail. The error code returned
- * when an attempt is made to write to a "broken" pipe corresponds to the
- * status code passed in when the input end of the pipe was closed, which
- * greatly simplifies working with pipes in some cases.
- *
- * @param aStatus
- * The error that will be reported if this stream is accessed after
- * it has been closed.
- */
- /* void closeWithStatus (in nsresult aStatus); */
- NS_IMETHOD CloseWithStatus(nsresult aStatus) = 0;
-
- /**
- * Asynchronously wait for the stream to be readable or closed. The
- * notification is one-shot, meaning that each asyncWait call will result
- * in exactly one notification callback. After the OnInputStreamReady event
- * is dispatched, the stream releases its reference to the
- * nsIInputStreamCallback object. It is safe to call asyncWait again from the
- * notification handler.
- *
- * This method may be called at any time (even if read has not been called).
- * In other words, this method may be called when the stream already has
- * data to read. It may also be called when the stream is closed. If the
- * stream is already readable or closed when AsyncWait is called, then the
- * OnInputStreamReady event will be dispatched immediately. Otherwise, the
- * event will be dispatched when the stream becomes readable or closed.
- *
- * @param aCallback
- * This object is notified when the stream becomes ready.
- * @param aFlags
- * This parameter specifies optional flags passed in to configure
- * the behavior of this method. Pass zero to specify no flags.
- * @param aRequestedCount
- * Wait until at least this many bytes can be read. This is only
- * a suggestion to the underlying stream; it may be ignored. The
- * caller may pass zero to indicate no preference.
- * @param aEventTarget
- * Specify NULL to receive notification on ANY thread (possibly even
- * recursively on the calling thread -- i.e., synchronously), or
- * specify that the notification be delivered to a specific event
- * target.
- */
- /* void asyncWait (in nsIInputStreamCallback aCallback, in unsigned long aFlags, in unsigned long aRequestedCount, in nsIEventTarget aEventTarget); */
- NS_IMETHOD AsyncWait(nsIInputStreamCallback *aCallback, PRUint32 aFlags, PRUint32 aRequestedCount, nsIEventTarget *aEventTarget) = 0;
-
- /**
- * If passed to asyncWait, this flag overrides the default behavior,
- * causing the OnInputStreamReady notification to be suppressed until the
- * stream becomes closed (either as a result of closeWithStatus/close being
- * called on the stream or possibly due to some error in the underlying
- * stream).
- */
- enum { WAIT_CLOSURE_ONLY = 1U };
-
- };
-
- /* Use this macro when declaring classes that implement this interface. */
- #define NS_DECL_NSIASYNCINPUTSTREAM \
- NS_IMETHOD CloseWithStatus(nsresult aStatus); \
- NS_IMETHOD AsyncWait(nsIInputStreamCallback *aCallback, PRUint32 aFlags, PRUint32 aRequestedCount, nsIEventTarget *aEventTarget); \
-
- /* Use this macro to declare functions that forward the behavior of this interface to another object. */
- #define NS_FORWARD_NSIASYNCINPUTSTREAM(_to) \
- NS_IMETHOD CloseWithStatus(nsresult aStatus) { return _to CloseWithStatus(aStatus); } \
- NS_IMETHOD AsyncWait(nsIInputStreamCallback *aCallback, PRUint32 aFlags, PRUint32 aRequestedCount, nsIEventTarget *aEventTarget) { return _to AsyncWait(aCallback, aFlags, aRequestedCount, aEventTarget); } \
-
- /* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
- #define NS_FORWARD_SAFE_NSIASYNCINPUTSTREAM(_to) \
- NS_IMETHOD CloseWithStatus(nsresult aStatus) { return !_to ? NS_ERROR_NULL_POINTER : _to->CloseWithStatus(aStatus); } \
- NS_IMETHOD AsyncWait(nsIInputStreamCallback *aCallback, PRUint32 aFlags, PRUint32 aRequestedCount, nsIEventTarget *aEventTarget) { return !_to ? NS_ERROR_NULL_POINTER : _to->AsyncWait(aCallback, aFlags, aRequestedCount, aEventTarget); } \
-
- #if 0
- /* Use the code below as a template for the implementation class for this interface. */
-
- /* Header file */
- class nsAsyncInputStream : public nsIAsyncInputStream
- {
- public:
- NS_DECL_ISUPPORTS
- NS_DECL_NSIASYNCINPUTSTREAM
-
- nsAsyncInputStream();
-
- private:
- ~nsAsyncInputStream();
-
- protected:
- /* additional members */
- };
-
- /* Implementation file */
- NS_IMPL_ISUPPORTS1(nsAsyncInputStream, nsIAsyncInputStream)
-
- nsAsyncInputStream::nsAsyncInputStream()
- {
- /* member initializers and constructor code */
- }
-
- nsAsyncInputStream::~nsAsyncInputStream()
- {
- /* destructor code */
- }
-
- /* void closeWithStatus (in nsresult aStatus); */
- NS_IMETHODIMP nsAsyncInputStream::CloseWithStatus(nsresult aStatus)
- {
- return NS_ERROR_NOT_IMPLEMENTED;
- }
-
- /* void asyncWait (in nsIInputStreamCallback aCallback, in unsigned long aFlags, in unsigned long aRequestedCount, in nsIEventTarget aEventTarget); */
- NS_IMETHODIMP nsAsyncInputStream::AsyncWait(nsIInputStreamCallback *aCallback, PRUint32 aFlags, PRUint32 aRequestedCount, nsIEventTarget *aEventTarget)
- {
- return NS_ERROR_NOT_IMPLEMENTED;
- }
-
- /* End of implementation class template. */
- #endif
-
-
- /* starting interface: nsIInputStreamCallback */
- #define NS_IINPUTSTREAMCALLBACK_IID_STR "d1f28e94-3a6e-4050-a5f5-2e81b1fc2a43"
-
- #define NS_IINPUTSTREAMCALLBACK_IID \
- {0xd1f28e94, 0x3a6e, 0x4050, \
- { 0xa5, 0xf5, 0x2e, 0x81, 0xb1, 0xfc, 0x2a, 0x43 }}
-
- class NS_NO_VTABLE nsIInputStreamCallback : public nsISupports {
- public:
-
- NS_DEFINE_STATIC_IID_ACCESSOR(NS_IINPUTSTREAMCALLBACK_IID)
-
- /**
- * This is a companion interface for nsIAsyncInputStream::asyncWait.
- */
- /**
- * Called to indicate that the stream is either readable or closed.
- *
- * @param aStream
- * The stream whose asyncWait method was called.
- */
- /* void onInputStreamReady (in nsIAsyncInputStream aStream); */
- NS_IMETHOD OnInputStreamReady(nsIAsyncInputStream *aStream) = 0;
-
- };
-
- /* Use this macro when declaring classes that implement this interface. */
- #define NS_DECL_NSIINPUTSTREAMCALLBACK \
- NS_IMETHOD OnInputStreamReady(nsIAsyncInputStream *aStream);
-
- /* Use this macro to declare functions that forward the behavior of this interface to another object. */
- #define NS_FORWARD_NSIINPUTSTREAMCALLBACK(_to) \
- NS_IMETHOD OnInputStreamReady(nsIAsyncInputStream *aStream) { return _to OnInputStreamReady(aStream); }
-
- /* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
- #define NS_FORWARD_SAFE_NSIINPUTSTREAMCALLBACK(_to) \
- NS_IMETHOD OnInputStreamReady(nsIAsyncInputStream *aStream) { return !_to ? NS_ERROR_NULL_POINTER : _to->OnInputStreamReady(aStream); }
-
- #if 0
- /* Use the code below as a template for the implementation class for this interface. */
-
- /* Header file */
- class nsInputStreamCallback : public nsIInputStreamCallback
- {
- public:
- NS_DECL_ISUPPORTS
- NS_DECL_NSIINPUTSTREAMCALLBACK
-
- nsInputStreamCallback();
-
- private:
- ~nsInputStreamCallback();
-
- protected:
- /* additional members */
- };
-
- /* Implementation file */
- NS_IMPL_ISUPPORTS1(nsInputStreamCallback, nsIInputStreamCallback)
-
- nsInputStreamCallback::nsInputStreamCallback()
- {
- /* member initializers and constructor code */
- }
-
- nsInputStreamCallback::~nsInputStreamCallback()
- {
- /* destructor code */
- }
-
- /* void onInputStreamReady (in nsIAsyncInputStream aStream); */
- NS_IMETHODIMP nsInputStreamCallback::OnInputStreamReady(nsIAsyncInputStream *aStream)
- {
- return NS_ERROR_NOT_IMPLEMENTED;
- }
-
- /* End of implementation class template. */
- #endif
-
-
- #endif /* __gen_nsIAsyncInputStream_h__ */
-