mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-11 12:25:53 +00:00
0d2808c511
Moved nsFileSpec and related classes into this obsolete library. Moved nsRegistry and related libreg functionality into the obsolete library. Updated many callers using the obsolete nsFile spec to use nsIFile and Necko to do file IO. Combined the following DLLs (source -> dest) uriloader -> docshell shistory -> docshell jsurl -> jsdom gkview -> gklayout Moved nsAdapterEnumerator out of xpcom/ds and into mailnews, since they're the only consumer Modifed the xpt_link tool so that you can specify a �only include� cid list that can mask CID�s that you are not interested in. Added build options: Prevent the building of xpinstall (--disable-xpinstall) Prevent the building js component loader (--disable-jsloader) A build option to only build a single profile (--enable-single-profile) A build flag to only built the required xpfe components (--disable-xpfe-components). Removal or hiding of unused functions and classes including nsEscape*, nsDequeIterator, nsRecyclingAllocatorImpl, nsDiscriminatedUnion, nsOpaqueKey, nsCRT::strlen, NS_NewCommandLineService Bug 194240, r/sr = darin, alec.
558 lines
19 KiB
C++
558 lines
19 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* mcmullen@netscape.com (original author)
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* warren@netscape.com
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* alecf@netscape.com
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* scc@mozilla.org
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* david.gardiner@unisa.edu.au
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* fur@netscape.com
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* norris@netscape.com
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* pinkerton@netscape.com
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* davidm@netscape.com
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* sfraser@netscape.com
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* darin@netscape.com
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/**
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* Based on original code from nsIStringStream.cpp
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*/
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#include "nsStringStream.h"
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#include "prerror.h"
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#include "plstr.h"
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#include "nsReadableUtils.h"
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#include "nsCRT.h"
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#include "nsISeekableStream.h"
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#define NS_FILE_RESULT(x) ns_file_convert_result((PRInt32)x)
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#define NS_FILE_FAILURE NS_FILE_RESULT(-1)
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static nsresult ns_file_convert_result(PRInt32 nativeErr)
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{
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return nativeErr ?
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NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_FILES,((nativeErr)&0xFFFF))
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: NS_OK;
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}
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//========================================================================================
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class BasicStringImpl
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: public nsIOutputStream
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, public nsIInputStream
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, public nsIRandomAccessStore
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//========================================================================================
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{
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public:
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BasicStringImpl();
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virtual ~BasicStringImpl();
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NS_DECL_NSISEEKABLESTREAM
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NS_IMETHOD GetAtEOF(PRBool* outAtEOF);
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NS_IMETHOD SetAtEOF(PRBool inAtEOF);
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NS_IMETHOD Available(PRUint32 *aLength);
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NS_IMETHOD Read(char* aBuf,
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PRUint32 aCount,
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PRUint32 *aReadCount);
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NS_IMETHOD ReadSegments(nsWriteSegmentFun writer, void * closure, PRUint32 count, PRUint32 *_retval) = 0;
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// nsIOutputStream interface
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NS_IMETHOD Write(const char* aBuf,
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PRUint32 aCount,
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PRUint32 *aWriteCount);
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NS_IMETHOD WriteFrom(nsIInputStream *inStr, PRUint32 count, PRUint32 *_retval);
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NS_IMETHOD WriteSegments(nsReadSegmentFun reader, void * closure, PRUint32 count, PRUint32 *_retval);
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NS_IMETHOD IsNonBlocking(PRBool *aNonBlocking);
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public:
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// nsISupports interface
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NS_DECL_ISUPPORTS
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NS_IMETHOD Close() { return NS_OK; }
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// nsIInputStream interface
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NS_IMETHOD Flush() { return NS_OK; }
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public:
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nsresult get_result() const { return mLastResult; }
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protected:
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virtual PRInt32 length() const = 0;
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virtual PRInt32 read(char* buf, PRUint32 count) = 0;
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virtual PRInt32 write(const char*, PRUint32);
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protected:
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PRUint32 mOffset;
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nsresult mLastResult;
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PRBool mEOF;
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}; // class BasicStringImpl
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//----------------------------------------------------------------------------------------
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BasicStringImpl::BasicStringImpl()
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//----------------------------------------------------------------------------------------
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: mOffset(0)
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, mLastResult(NS_OK)
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, mEOF(PR_FALSE)
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{
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}
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//----------------------------------------------------------------------------------------
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BasicStringImpl::~BasicStringImpl()
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//----------------------------------------------------------------------------------------
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{
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}
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//----------------------------------------------------------------------------------------
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NS_IMETHODIMP BasicStringImpl::Seek(PRInt32 whence, PRInt32 offset)
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//----------------------------------------------------------------------------------------
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{
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mLastResult = NS_OK; // reset on a seek.
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mEOF = PR_FALSE; // reset on a seek.
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PRInt32 fileSize = length();
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PRInt32 newPosition=-1;
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switch (whence)
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{
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case NS_SEEK_CUR: newPosition = mOffset + offset; break;
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case NS_SEEK_SET: newPosition = offset; break;
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case NS_SEEK_END: newPosition = fileSize + offset; break;
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}
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if (newPosition < 0)
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{
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newPosition = 0;
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mLastResult = NS_FILE_RESULT(PR_FILE_SEEK_ERROR);
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}
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if (newPosition >= fileSize)
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{
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newPosition = fileSize;
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mEOF = PR_TRUE;
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}
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mOffset = newPosition;
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return NS_OK;
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} // BasicStringImpl::Seek
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//----------------------------------------------------------------------------------------
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NS_IMETHODIMP BasicStringImpl::Tell(PRUint32* outWhere)
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//----------------------------------------------------------------------------------------
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{
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*outWhere = mOffset;
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return NS_OK;
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}
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//----------------------------------------------------------------------------------------
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NS_IMETHODIMP BasicStringImpl::SetEOF()
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//----------------------------------------------------------------------------------------
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{
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NS_NOTYETIMPLEMENTED("BasicStringImpl::SetEOF");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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//----------------------------------------------------------------------------------------
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NS_IMETHODIMP BasicStringImpl::GetAtEOF(PRBool* outAtEOF)
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//----------------------------------------------------------------------------------------
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{
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*outAtEOF = mEOF;
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return NS_OK;
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}
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//----------------------------------------------------------------------------------------
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NS_IMETHODIMP BasicStringImpl::SetAtEOF(PRBool inAtEOF)
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//----------------------------------------------------------------------------------------
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{
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mEOF = inAtEOF;
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return NS_OK;
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}
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//----------------------------------------------------------------------------------------
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NS_IMETHODIMP BasicStringImpl::Available(PRUint32 *aLength)
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//----------------------------------------------------------------------------------------
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{
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NS_PRECONDITION(aLength != nsnull, "null ptr");
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if (!aLength)
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return NS_ERROR_NULL_POINTER;
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*aLength = length();
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return NS_OK;
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}
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//----------------------------------------------------------------------------------------
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NS_IMETHODIMP BasicStringImpl::Read(char* aBuf, PRUint32 aCount, PRUint32 *aReadCount)
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//----------------------------------------------------------------------------------------
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{
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NS_PRECONDITION(aBuf != nsnull, "null ptr");
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if (!aBuf)
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return NS_ERROR_NULL_POINTER;
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NS_PRECONDITION(aReadCount != nsnull, "null ptr");
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if (!aReadCount)
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return NS_ERROR_NULL_POINTER;
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if (NS_FAILED(mLastResult))
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return mLastResult;
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PRInt32 bytesRead = read(aBuf, aCount);
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if (NS_FAILED(mLastResult))
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{
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*aReadCount = 0;
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return mLastResult;
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}
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*aReadCount = bytesRead;
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if (bytesRead < (PRInt32)aCount)
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SetAtEOF(PR_TRUE);
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return NS_OK;
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}
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//----------------------------------------------------------------------------------------
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NS_IMETHODIMP BasicStringImpl::Write(const char* aBuf, PRUint32 aCount, PRUint32 *aWriteCount)
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//----------------------------------------------------------------------------------------
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{
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NS_PRECONDITION(aBuf != nsnull, "null ptr");
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NS_PRECONDITION(aWriteCount != nsnull, "null ptr");
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if (NS_FAILED(mLastResult))
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return mLastResult;
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PRInt32 bytesWrit = write(aBuf, aCount);
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if (NS_FAILED(mLastResult))
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{
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*aWriteCount = 0;
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return mLastResult;
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}
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*aWriteCount = bytesWrit;
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return NS_OK;
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}
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NS_IMETHODIMP
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BasicStringImpl::WriteFrom(nsIInputStream *inStr, PRUint32 count, PRUint32 *result)
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{
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NS_NOTREACHED("WriteFrom");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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BasicStringImpl::WriteSegments(nsReadSegmentFun reader, void * closure,
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PRUint32 count, PRUint32 *result)
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{
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NS_NOTREACHED("WriteSegments");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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BasicStringImpl::IsNonBlocking(PRBool *aNonBlocking)
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{
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*aNonBlocking = PR_TRUE;
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return NS_OK;
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}
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//----------------------------------------------------------------------------------------
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PRInt32 BasicStringImpl::write(const char*, PRUint32)
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//----------------------------------------------------------------------------------------
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{
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NS_ASSERTION(PR_FALSE, "Write to a const string");
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mLastResult = NS_FILE_RESULT(PR_ILLEGAL_ACCESS_ERROR);
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return -1;
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}
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#ifdef XP_MAC
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#pragma mark -
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#endif
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//========================================================================================
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class ConstCharImpl
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: public BasicStringImpl
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//========================================================================================
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{
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public:
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ConstCharImpl(const char* inString, PRInt32 inLength = -1)
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: mConstString(inString),
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mLength(inLength == -1 ?
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(inString ? strlen(inString) : 0) : inLength) {}
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protected:
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virtual PRInt32 length() const
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{
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return mLength - mOffset;
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}
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virtual PRInt32 read(char* buf, PRUint32 aCount)
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{
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PRInt32 maxCount = mLength - mOffset;
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if ((PRInt32)aCount > maxCount)
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aCount = maxCount;
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memcpy(buf, mConstString + mOffset, aCount);
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mOffset += aCount;
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return aCount;
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}
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NS_IMETHOD ReadSegments(nsWriteSegmentFun writer, void * closure,
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PRUint32 aCount, PRUint32 *result) {
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nsresult rv;
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PRInt32 maxCount = mLength - mOffset;
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if (maxCount == 0) {
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*result = 0;
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return NS_OK;
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}
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if ((PRInt32)aCount > maxCount)
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aCount = maxCount;
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rv = writer(this, closure, mConstString + mOffset,
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0, aCount, result);
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if (NS_SUCCEEDED(rv))
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mOffset += *result;
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// errors returned from the writer end here!
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return NS_OK;
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}
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protected:
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const char* mConstString;
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size_t mLength;
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}; // class ConstCharImpl
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//========================================================================================
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class ConstStringImpl
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: public ConstCharImpl
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//========================================================================================
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{
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public:
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ConstStringImpl(const nsAString& inString)
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: ConstCharImpl(ToNewCString(inString),
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inString.Length())
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{
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}
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ConstStringImpl(const nsACString& inString)
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: ConstCharImpl(ToNewCString(inString),
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inString.Length())
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{
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}
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~ConstStringImpl()
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{
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Recycle((char*)mConstString);
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}
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protected:
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protected:
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}; // class ConstStringImpl
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NS_IMPL_THREADSAFE_ADDREF(BasicStringImpl)
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NS_IMPL_THREADSAFE_RELEASE(BasicStringImpl)
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NS_IMPL_QUERY_HEAD(BasicStringImpl)
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NS_IMPL_QUERY_BODY(nsISeekableStream)
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NS_IMPL_QUERY_BODY(nsIOutputStream)
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NS_IMPL_QUERY_BODY(nsIInputStream)
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NS_IMPL_QUERY_BODY(nsIRandomAccessStore)
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NS_IMPL_QUERY_TAIL(nsIOutputStream)
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//----------------------------------------------------------------------------------------
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extern "C" NS_COM nsresult NS_NewStringInputStream(
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nsIInputStream** aStreamResult,
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const nsAString& aStringToRead)
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// Factory method to get an nsInputStream from a string. Result will implement all the
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// file stream interfaces in nsIFileStream.h
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//----------------------------------------------------------------------------------------
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{
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NS_PRECONDITION(aStreamResult != nsnull, "null ptr");
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if (! aStreamResult)
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return NS_ERROR_NULL_POINTER;
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ConstStringImpl* stream = new ConstStringImpl(aStringToRead);
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if (! stream)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(stream);
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*aStreamResult = NS_STATIC_CAST(nsIInputStream*,stream);
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return NS_OK;
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}
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//----------------------------------------------------------------------------------------
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extern "C" NS_COM nsresult NS_NewCStringInputStream(
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nsIInputStream** aStreamResult,
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const nsACString& aStringToRead)
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// Factory method to get an nsInputStream from a cstring. Result will implement all the
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// file stream interfaces in nsIFileStream.h
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//----------------------------------------------------------------------------------------
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{
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NS_PRECONDITION(aStreamResult != nsnull, "null ptr");
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if (! aStreamResult)
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return NS_ERROR_NULL_POINTER;
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ConstStringImpl* stream = new ConstStringImpl(aStringToRead);
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if (! stream)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(stream);
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*aStreamResult = NS_STATIC_CAST(nsIInputStream*,stream);
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return NS_OK;
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}
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//----------------------------------------------------------------------------------------
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extern "C" NS_COM nsresult NS_NewCharInputStream(
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nsISupports** aStreamResult,
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const char* aStringToRead)
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// Factory method to get an nsInputStream from a string. Result will implement all the
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// file stream interfaces in nsIFileStream.h
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//----------------------------------------------------------------------------------------
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{
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NS_PRECONDITION(aStreamResult != nsnull, "null ptr");
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if (! aStreamResult)
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return NS_ERROR_NULL_POINTER;
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ConstCharImpl* stream = new ConstCharImpl(aStringToRead);
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if (! stream)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(stream);
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*aStreamResult = (nsISupports*)(void*)stream;
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return NS_OK;
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}
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//----------------------------------------------------------------------------------------
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extern "C" NS_COM nsresult NS_NewByteInputStream(
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nsISupports** aStreamResult,
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const char* aStringToRead,
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PRInt32 aLength)
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// Factory method to get an nsInputStream from a string. Result will implement all the
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// file stream interfaces in nsIFileStream.h
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//----------------------------------------------------------------------------------------
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{
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NS_PRECONDITION(aStreamResult != nsnull, "null ptr");
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if (! aStreamResult)
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return NS_ERROR_NULL_POINTER;
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ConstCharImpl* stream = new ConstCharImpl(aStringToRead, aLength);
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if (! stream)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(stream);
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*aStreamResult = (nsISupports*)(void*)stream;
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return NS_OK;
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}
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//----------------------------------------------------------------------------------------
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// nsIStringInputStream implementation
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//----------------------------------------------------------------------------------------
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class nsStringInputStream : public ConstCharImpl
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, public nsIStringInputStream
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{
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public:
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_NSISTRINGINPUTSTREAM
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nsStringInputStream() : ConstCharImpl(nsnull, -1), mOwned(PR_FALSE) {}
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virtual ~nsStringInputStream();
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protected:
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PRBool mOwned;
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};
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nsStringInputStream::~nsStringInputStream()
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{
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if (mOwned)
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nsMemory::Free((char *) mConstString);
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}
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NS_IMETHODIMP
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nsStringInputStream::SetData(const char *data, PRInt32 dataLen)
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{
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if (dataLen < 0)
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dataLen = strlen(data);
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return AdoptData(nsCRT::strndup(data, dataLen), dataLen);
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}
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NS_IMETHODIMP
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nsStringInputStream::AdoptData(char *data, PRInt32 dataLen)
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{
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NS_ENSURE_ARG_POINTER(data);
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if (dataLen < 0)
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dataLen = strlen(data);
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mConstString = (const char *) data;
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mLength = dataLen;
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mOwned = PR_TRUE;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsStringInputStream::ShareData(const char *data, PRInt32 dataLen)
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{
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NS_ENSURE_ARG_POINTER(data);
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if (dataLen < 0)
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dataLen = strlen(data);
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mConstString = data;
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mLength = dataLen;
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mOwned = PR_FALSE;
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return NS_OK;
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}
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NS_IMPL_ISUPPORTS_INHERITED1(nsStringInputStream,
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ConstCharImpl,
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nsIStringInputStream)
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// factory method for constructing a nsStringInputStream object
|
|
NS_METHOD
|
|
nsStringInputStreamConstructor(nsISupports *outer, REFNSIID iid, void **result)
|
|
{
|
|
*result = nsnull;
|
|
|
|
if (nsnull != outer)
|
|
return NS_ERROR_NO_AGGREGATION;
|
|
|
|
nsStringInputStream *inst;
|
|
NS_NEWXPCOM(inst, nsStringInputStream);
|
|
if (!inst)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
NS_ADDREF(inst);
|
|
nsresult rv = inst->QueryInterface(iid, result);
|
|
NS_RELEASE(inst);
|
|
|
|
return rv;
|
|
}
|