зеркало из https://github.com/mozilla/pjs.git
[not part of build] nsIInputStream/nsIOutputStream wrappers for ANSI FILE objects.
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is nsANSIFileStreams.cpp, released March 23, 2001.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are
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* Copyright (C) 2001 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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* Patrick C. Beard <beard@netscape.com>
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*/
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#include "nsANSIFileStreams.h"
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NS_IMPL_ISUPPORTS1(nsANSIInputStream, nsIInputStream);
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nsANSIInputStream::nsANSIInputStream(FILE* file) : mFile(file)
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{
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NS_INIT_ISUPPORTS();
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}
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nsANSIInputStream::~nsANSIInputStream()
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{
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Close();
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}
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/* void close (); */
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NS_IMETHODIMP nsANSIInputStream::Close()
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{
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if (mFile) {
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::fclose(mFile);
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mFile = nsnull;
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return NS_OK;
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}
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return NS_BASE_STREAM_CLOSED;
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}
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/* unsigned long available (); */
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NS_IMETHODIMP nsANSIInputStream::Available(PRUint32 *_retval)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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/* [noscript] unsigned long read (in charPtr buf, in unsigned long count); */
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NS_IMETHODIMP nsANSIInputStream::Read(char * buf, PRUint32 count, PRUint32 *result)
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{
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if (mFile) {
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*result = ::fread(buf, 1, count, mFile);
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return NS_OK;
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}
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return NS_BASE_STREAM_CLOSED;
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}
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/* [noscript] unsigned long readSegments (in nsWriteSegmentFun writer, in voidPtr closure, in unsigned long count); */
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NS_IMETHODIMP nsANSIInputStream::ReadSegments(nsWriteSegmentFun writer, void * closure, PRUint32 count, PRUint32 *_retval)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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/* readonly attribute boolean nonBlocking; */
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NS_IMETHODIMP nsANSIInputStream::GetNonBlocking(PRBool *aNonBlocking)
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{
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*aNonBlocking = PR_FALSE;
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return NS_OK;
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}
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/* attribute nsIInputStreamObserver observer; */
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NS_IMETHODIMP nsANSIInputStream::GetObserver(nsIInputStreamObserver * *aObserver)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsANSIInputStream::SetObserver(nsIInputStreamObserver * aObserver)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMPL_ISUPPORTS1(nsANSIOutputStream, nsIOutputStream);
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nsANSIOutputStream::nsANSIOutputStream(FILE* file) : mFile(file)
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{
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NS_INIT_ISUPPORTS();
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}
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nsANSIOutputStream::~nsANSIOutputStream()
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{
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Close();
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}
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/* void close (); */
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NS_IMETHODIMP nsANSIOutputStream::Close()
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{
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if (mFile) {
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::fclose(mFile);
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mFile = nsnull;
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return NS_OK;
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}
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return NS_BASE_STREAM_CLOSED;
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}
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/* void flush (); */
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NS_IMETHODIMP nsANSIOutputStream::Flush()
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{
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if (mFile) {
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::fflush(mFile);
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return NS_OK;
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}
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return NS_BASE_STREAM_CLOSED;
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}
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/* unsigned long write (in string buf, in unsigned long count); */
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NS_IMETHODIMP nsANSIOutputStream::Write(const char *buffer, PRUint32 count, PRUint32 *result)
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{
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if (mFile) {
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*result = ::fwrite(buffer, 1, count, mFile);
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return NS_OK;
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}
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return NS_BASE_STREAM_CLOSED;
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}
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/* unsigned long writeFrom (in nsIInputStream inStr, in unsigned long count); */
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NS_IMETHODIMP nsANSIOutputStream::WriteFrom(nsIInputStream *input, PRUint32 count, PRUint32 *actualCount)
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{
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char buffer[BUFSIZ];
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PRUint32 totalCount = count;
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*actualCount = 0;
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while (totalCount > 0) {
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count = (totalCount < BUFSIZ ? totalCount : BUFSIZ);
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nsresult rv = input->Read(buffer, count, &count);
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if (NS_FAILED(rv)) return rv;
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rv = Write(buffer, count, &count);
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totalCount -= count;
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*actualCount += count;
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}
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return NS_OK;
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}
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/* [noscript] unsigned long writeSegments (in nsReadSegmentFun reader, in voidPtr closure, in unsigned long count); */
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NS_IMETHODIMP nsANSIOutputStream::WriteSegments(nsReadSegmentFun reader, void * closure, PRUint32 count, PRUint32 *_retval)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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/* attribute boolean nonBlocking; */
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NS_IMETHODIMP nsANSIOutputStream::GetNonBlocking(PRBool *aNonBlocking)
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{
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*aNonBlocking = PR_FALSE;
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return NS_OK;
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}
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NS_IMETHODIMP nsANSIOutputStream::SetNonBlocking(PRBool aNonBlocking)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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/* attribute nsIOutputStreamObserver observer; */
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NS_IMETHODIMP nsANSIOutputStream::GetObserver(nsIOutputStreamObserver * *aObserver)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsANSIOutputStream::SetObserver(nsIOutputStreamObserver * aObserver)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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@ -0,0 +1,52 @@
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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||||
* The contents of this file are subject to the Mozilla Public
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||||
* License Version 1.1 (the "License"); you may not use this file
|
||||
* except in compliance with the License. You may obtain a copy of
|
||||
* the License at http://www.mozilla.org/MPL/
|
||||
*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
|
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*
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* The Original Code is nsANSIFileStreams.h, released March 23, 2001.
|
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*
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* The Initial Developer of the Original Code is Netscape Communications
|
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* Corporation. Portions created by Netscape are
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* Copyright (C) 2001 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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* Patrick C. Beard <beard@netscape.com>
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*/
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#ifndef _nsANSIFileStreams_h_
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#define _nsANSIFileStreams_h_
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#include <stdio.h>
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#include "nsIInputStream.h"
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#include "nsIOutputStream.h"
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class nsANSIInputStream : public nsIInputStream {
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FILE* mFile;
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSIINPUTSTREAM
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nsANSIInputStream(FILE* file);
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virtual ~nsANSIInputStream();
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};
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class nsANSIOutputStream : public nsIOutputStream {
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FILE* mFile;
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSIOUTPUTSTREAM
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nsANSIOutputStream(FILE* file);
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virtual ~nsANSIOutputStream();
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};
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#endif // _nsANSIFileStreams_h_
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