home *** CD-ROM | disk | FTP | other *** search
- /*
- * DO NOT EDIT. THIS FILE IS GENERATED FROM nsISafeOutputStream.idl
- */
-
- #ifndef __gen_nsISafeOutputStream_h__
- #define __gen_nsISafeOutputStream_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: nsISafeOutputStream */
- #define NS_ISAFEOUTPUTSTREAM_IID_STR "5f914307-5c34-4e1f-8e32-ec749d25b27a"
-
- #define NS_ISAFEOUTPUTSTREAM_IID \
- {0x5f914307, 0x5c34, 0x4e1f, \
- { 0x8e, 0x32, 0xec, 0x74, 0x9d, 0x25, 0xb2, 0x7a }}
-
- /**
- * This interface provides a mechanism to control an output stream
- * that takes care not to overwrite an existing target until it is known
- * that all writes to the destination succeeded.
- *
- * An object that supports this interface is intended to also support
- * nsIOutputStream.
- *
- * For example, a file output stream that supports this interface writes to
- * a temporary file, and moves it over the original file when |finish| is
- * called only if the stream can be successfully closed and all writes
- * succeeded. If |finish| is called but something went wrong during
- * writing, it will delete the temporary file and not touch the original.
- * If the stream is closed by calling |close| directly, or the stream
- * goes away, the original file will not be overwritten, and the temporary
- * file will be deleted.
- *
- * Currently, this interface is implemented only for file output streams.
- */
- class NS_NO_VTABLE nsISafeOutputStream : public nsISupports {
- public:
-
- NS_DEFINE_STATIC_IID_ACCESSOR(NS_ISAFEOUTPUTSTREAM_IID)
-
- /**
- * Call this method to close the stream and cause the original target
- * to be overwritten. Note: if any call to |write| failed to write out
- * all of the data given to it, then calling this method will |close| the
- * stream and return failure. Further, if closing the stream fails, this
- * method will return failure. The original target will be overwritten only
- * if all calls to |write| succeeded and the stream was successfully closed.
- */
- /* void finish (); */
- NS_IMETHOD Finish(void) = 0;
-
- };
-
- /* Use this macro when declaring classes that implement this interface. */
- #define NS_DECL_NSISAFEOUTPUTSTREAM \
- NS_IMETHOD Finish(void);
-
- /* Use this macro to declare functions that forward the behavior of this interface to another object. */
- #define NS_FORWARD_NSISAFEOUTPUTSTREAM(_to) \
- NS_IMETHOD Finish(void) { return _to Finish(); }
-
- /* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
- #define NS_FORWARD_SAFE_NSISAFEOUTPUTSTREAM(_to) \
- NS_IMETHOD Finish(void) { return !_to ? NS_ERROR_NULL_POINTER : _to->Finish(); }
-
- #if 0
- /* Use the code below as a template for the implementation class for this interface. */
-
- /* Header file */
- class nsSafeOutputStream : public nsISafeOutputStream
- {
- public:
- NS_DECL_ISUPPORTS
- NS_DECL_NSISAFEOUTPUTSTREAM
-
- nsSafeOutputStream();
-
- private:
- ~nsSafeOutputStream();
-
- protected:
- /* additional members */
- };
-
- /* Implementation file */
- NS_IMPL_ISUPPORTS1(nsSafeOutputStream, nsISafeOutputStream)
-
- nsSafeOutputStream::nsSafeOutputStream()
- {
- /* member initializers and constructor code */
- }
-
- nsSafeOutputStream::~nsSafeOutputStream()
- {
- /* destructor code */
- }
-
- /* void finish (); */
- NS_IMETHODIMP nsSafeOutputStream::Finish()
- {
- return NS_ERROR_NOT_IMPLEMENTED;
- }
-
- /* End of implementation class template. */
- #endif
-
-
- #endif /* __gen_nsISafeOutputStream_h__ */
-