diff options
Diffstat (limited to 'src/libs/xpcom18a4/xpcom/obsolete/nsIFileStream.cpp')
| -rw-r--r-- | src/libs/xpcom18a4/xpcom/obsolete/nsIFileStream.cpp | 727 |
1 files changed, 727 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/obsolete/nsIFileStream.cpp b/src/libs/xpcom18a4/xpcom/obsolete/nsIFileStream.cpp new file mode 100644 index 00000000..011bcdaa --- /dev/null +++ b/src/libs/xpcom18a4/xpcom/obsolete/nsIFileStream.cpp @@ -0,0 +1,727 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public 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/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is mozilla.org code. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Pierre Phaneuf <pp@ludusdesign.com> + * + * Alternatively, the contents of this file may be used under the terms of + * either of the GNU General Public License Version 2 or later (the "GPL"), + * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +#include "nsIFileStream.h" +#include "nsFileSpec.h" +#include "nsCOMPtr.h" + +#include "prerror.h" + +#include "nsSegmentedBuffer.h" +#include "nsInt64.h" + +#ifdef XP_MAC +#include "pprio.h" // To get PR_ImportFile +#else +#include "prio.h" +#endif + +#ifdef XP_MAC +#include <Errors.h> +#include <iostream> +#endif + +//======================================================================================== +class FileImpl + : public nsIRandomAccessStore + , public nsIFileSpecOutputStream + , public nsIFileSpecInputStream + , public nsIOpenFile +//======================================================================================== +{ + public: + FileImpl(PRFileDesc* inDesc); + FileImpl(const nsFileSpec& inFile, int nsprMode, PRIntn accessMode); + + // nsISupports interface + NS_DECL_ISUPPORTS + + // nsIOpenFile interface + NS_IMETHOD Open(const nsFileSpec& inFile, int nsprMode, PRIntn accessMode); + NS_IMETHOD Close(); + NS_IMETHOD GetIsOpen(PRBool* outOpen); + + // nsIInputStream interface + NS_IMETHOD Available(PRUint32 *aLength); + NS_IMETHOD Read(char* aBuf, PRUint32 aCount, PRUint32 *aReadCount); + NS_IMETHOD ReadSegments(nsWriteSegmentFun writer, void * closure, PRUint32 count, PRUint32 *_retval); + NS_IMETHOD IsNonBlocking(PRBool *aNonBlocking); + + // nsIOutputStream interface + NS_IMETHOD Write(const char* aBuf, PRUint32 aCount, PRUint32 *aWriteCount); + NS_IMETHOD Flush(); + NS_IMETHOD WriteFrom(nsIInputStream *inStr, PRUint32 count, PRUint32 *_retval); + NS_IMETHOD WriteSegments(nsReadSegmentFun reader, void * closure, PRUint32 count, PRUint32 *_retval); + + // nsIRandomAccessStore interface + NS_DECL_NSISEEKABLESTREAM + NS_IMETHOD GetAtEOF(PRBool* outAtEOF); + NS_IMETHOD SetAtEOF(PRBool inAtEOF); + + private: + + ~FileImpl(); + + protected: + + enum { + kOuputBufferSegmentSize = 4096, + kOuputBufferMaxSize = 4096 + }; + + nsresult InternalFlush(PRBool syncFile); + nsresult AllocateBuffers(PRUint32 segmentSize, PRUint32 maxSize); + + PRFileDesc* mFileDesc; + int mNSPRMode; + PRBool mFailed; + PRBool mEOF; + PRInt32 mLength; + + PRBool mGotBuffers; + nsSegmentedBuffer mOutBuffer; + char* mWriteCursor; + char* mWriteLimit; + +}; // class FileImpl + +NS_IMPL_RELEASE(FileImpl) +NS_IMPL_ADDREF(FileImpl) + +NS_IMPL_QUERY_HEAD(FileImpl) + NS_IMPL_QUERY_BODY(nsIOpenFile) + NS_IMPL_QUERY_BODY(nsISeekableStream) + NS_IMPL_QUERY_BODY(nsIRandomAccessStore) + NS_IMPL_QUERY_BODY(nsIOutputStream) + NS_IMPL_QUERY_BODY(nsIInputStream) + NS_IMPL_QUERY_BODY(nsIFileSpecInputStream) + NS_IMPL_QUERY_BODY(nsIFileSpecOutputStream) +NS_IMPL_QUERY_TAIL(nsIOutputStream) + + +//---------------------------------------------------------------------------------------- +FileImpl::FileImpl(PRFileDesc* inDesc) +//---------------------------------------------------------------------------------------- +: mFileDesc(inDesc) +, mNSPRMode(0) +, mFailed(PR_FALSE) +, mEOF(PR_FALSE) +, mLength(-1) +, mGotBuffers(PR_FALSE) +{ + mWriteCursor = nsnull; + mWriteLimit = nsnull; +} + + +//---------------------------------------------------------------------------------------- +FileImpl::FileImpl(const nsFileSpec& inFile, int nsprMode, PRIntn accessMode) +//---------------------------------------------------------------------------------------- +: mFileDesc(nsnull) +, mNSPRMode(-1) +, mEOF(PR_FALSE) +, mLength(-1) +, mGotBuffers(PR_FALSE) +{ + mWriteCursor = nsnull; + mWriteLimit = nsnull; + + nsresult rv = Open(inFile, nsprMode, accessMode); // this sets nsprMode + + if (NS_FAILED(rv)) + { + mFailed = PR_TRUE; +#if DEBUG + char *fileName = inFile.GetLeafName(); + printf("Opening file %s failed\n", fileName); + nsCRT::free(fileName); +#endif + } + else + { + mFailed = PR_FALSE; + } +} + +//---------------------------------------------------------------------------------------- +FileImpl::~FileImpl() +//---------------------------------------------------------------------------------------- +{ + nsresult rv = Close(); + NS_ASSERTION(NS_SUCCEEDED(rv), "Close failed"); +} + + +//---------------------------------------------------------------------------------------- +NS_IMETHODIMP FileImpl::Open( + const nsFileSpec& inFile, + int nsprMode, + PRIntn accessMode) +//---------------------------------------------------------------------------------------- +{ + if (mFileDesc) + if ((nsprMode & mNSPRMode) == nsprMode) + return NS_OK; + else + return NS_FILE_RESULT(PR_ILLEGAL_ACCESS_ERROR); + + const int nspr_modes[]={ + PR_WRONLY | PR_CREATE_FILE, + PR_WRONLY | PR_CREATE_FILE | PR_APPEND, + PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE, + PR_RDONLY, + PR_RDONLY | PR_APPEND, + PR_RDWR | PR_CREATE_FILE, + PR_RDWR | PR_CREATE_FILE | PR_TRUNCATE, +// "wb", +// "ab", +// "wb", +// "rb", +// "r+b", +// "w+b", + 0 }; + const int* currentLegalMode = nspr_modes; + while (*currentLegalMode && nsprMode != *currentLegalMode) + ++currentLegalMode; + if (!*currentLegalMode) + return NS_FILE_RESULT(PR_ILLEGAL_ACCESS_ERROR); + +#ifdef XP_MAC + // Use the file spec to open the file, because one path can be common to + // several files on the Macintosh (you can have several volumes with the + // same name, see). + mFileDesc = 0; + OSErr err = inFile.Error(); + if (err != noErr) + if (err != fnfErr || !(nsprMode & PR_CREATE_FILE)) + return NS_FILE_RESULT(inFile.Error()); + err = noErr; +#if DEBUG + const OSType kCreator = 'CWIE'; +#else + const OSType kCreator = 'MOSS'; +#endif + // Resolve the alias to the original file. + nsFileSpec original = inFile; + PRBool ignoredResult; + original.ResolveSymlink(ignoredResult); + const FSSpec& spec = original.operator const FSSpec&(); + if (nsprMode & PR_CREATE_FILE) { + // In order to get the right file type/creator, do it with an nsILocalFileMac + // Don't propagate any errors in doing this. If any error, just use FSpCreate. + FSSpec nonConstSpec = spec; + nsCOMPtr<nsILocalFileMac> macFile; + nsresult res = NS_NewLocalFileWithFSSpec(&nonConstSpec, PR_FALSE, getter_AddRefs(macFile)); + if (NS_SUCCEEDED(res)) { + nsCOMPtr<nsIFile> asFile(do_QueryInterface(macFile, &res)); + if (NS_SUCCEEDED(res)) { + res = asFile->Create(nsIFile::NORMAL_FILE_TYPE, 0); + if (res == NS_ERROR_FILE_ALREADY_EXISTS) + res = NS_OK; + } + } + if (NS_FAILED(res)) + err = FSpCreate(&spec, kCreator, 'TEXT', 0); + } + + if (err == dupFNErr) + err = noErr; + if (err != noErr) + return NS_FILE_RESULT(err); + + SInt8 perm; + if (nsprMode & PR_RDWR) + perm = fsRdWrPerm; + else if (nsprMode & PR_WRONLY) + perm = fsWrPerm; + else + perm = fsRdPerm; + + short refnum; + err = FSpOpenDF(&spec, perm, &refnum); + + if (err == noErr && (nsprMode & PR_TRUNCATE)) + err = ::SetEOF(refnum, 0); + if (err == noErr && (nsprMode & PR_APPEND)) + err = SetFPos(refnum, fsFromLEOF, 0); + if (err != noErr) + return NS_FILE_RESULT(err); + + if ((mFileDesc = PR_ImportFile(refnum)) == 0) + return NS_FILE_RESULT(PR_GetError()); +#else + // Platforms other than Macintosh... + // Another bug in NSPR: Mac PR_Open assumes a unix style path, but Win PR_Open assumes + // a windows path. + if ((mFileDesc = PR_Open((const char*)nsFileSpec(inFile), nsprMode, accessMode)) == 0) + return NS_FILE_RESULT(PR_GetError()); +#endif + mNSPRMode = nsprMode; + mLength = PR_Available(mFileDesc); + return NS_OK; +} // FileImpl::Open + + +//---------------------------------------------------------------------------------------- +NS_IMETHODIMP FileImpl::Available(PRUint32 *aLength) +//---------------------------------------------------------------------------------------- +{ + NS_PRECONDITION(aLength != nsnull, "null ptr"); + if (!aLength) + return NS_ERROR_NULL_POINTER; + if (mLength < 0) + return NS_ERROR_UNEXPECTED; + *aLength = mLength; + return NS_OK; +} + +//---------------------------------------------------------------------------------------- +NS_IMETHODIMP FileImpl::GetIsOpen(PRBool* outOpen) +//---------------------------------------------------------------------------------------- +{ + *outOpen = (mFileDesc != nsnull && !mFailed); + return NS_OK; +} + +//---------------------------------------------------------------------------------------- +NS_IMETHODIMP FileImpl::Seek(PRInt32 whence, PRInt64 offset) +//---------------------------------------------------------------------------------------- +{ + if (mFileDesc==PR_STDIN || mFileDesc==PR_STDOUT || mFileDesc==PR_STDERR || !mFileDesc) + return NS_FILE_RESULT(PR_BAD_DESCRIPTOR_ERROR); + mFailed = PR_FALSE; // reset on a seek. + mEOF = PR_FALSE; // reset on a seek. + + // To avoid corruption, we flush during a seek. see bug number 18949 + InternalFlush(PR_FALSE); + + nsInt64 position = PR_Seek64(mFileDesc, 0, PR_SEEK_CUR); + nsInt64 available = PR_Available64(mFileDesc); + nsInt64 fileSize = position + available; + nsInt64 newPosition = offset; + switch (whence) + { + case NS_SEEK_CUR: newPosition += position; break; + case NS_SEEK_SET: ; break; + case NS_SEEK_END: newPosition += fileSize; break; + } + const nsInt64 zero = 0; + if (newPosition < zero) + { + newPosition = 0; + mFailed = PR_TRUE; + } + if (newPosition >= fileSize) // nb: not "else if". + { + newPosition = fileSize; + mEOF = PR_TRUE; + } + if (PR_Seek64(mFileDesc, newPosition, PR_SEEK_SET) < 0) + mFailed = PR_TRUE; + return NS_OK; +} // FileImpl::Seek + + +//---------------------------------------------------------------------------------------- +NS_IMETHODIMP FileImpl::Read(char* aBuf, PRUint32 aCount, PRUint32 *aReadCount) +//---------------------------------------------------------------------------------------- +{ + NS_PRECONDITION(aBuf != nsnull, "null ptr"); + if (!aBuf) + return NS_ERROR_NULL_POINTER; + NS_PRECONDITION(aReadCount != nsnull, "null ptr"); + if (!aReadCount) + return NS_ERROR_NULL_POINTER; + if (!mFileDesc) + return NS_FILE_RESULT(PR_BAD_DESCRIPTOR_ERROR); + if (mFailed) + return NS_ERROR_FAILURE; + PRInt32 bytesRead = PR_Read(mFileDesc, aBuf, aCount); + if (bytesRead < 0) + { + *aReadCount = 0; + mFailed = PR_TRUE; + return NS_FILE_RESULT(PR_GetError()); + } + else if (bytesRead == 0) + { + mEOF = PR_TRUE; + } + *aReadCount = bytesRead; + return NS_OK; +} + +NS_IMETHODIMP +FileImpl::ReadSegments(nsWriteSegmentFun writer, void * closure, PRUint32 count, PRUint32 *_retval) +{ + NS_NOTREACHED("ReadSegments"); + return NS_ERROR_NOT_IMPLEMENTED; +} + +//---------------------------------------------------------------------------------------- +NS_IMETHODIMP FileImpl::Write(const char* aBuf, PRUint32 aCount, PRUint32 *aWriteCount) +//---------------------------------------------------------------------------------------- +{ + NS_PRECONDITION(aBuf != nsnull, "null ptr"); + NS_PRECONDITION(aWriteCount != nsnull, "null ptr"); + + *aWriteCount = 0; + +#ifdef XP_MAC + // Calling PR_Write on stdout is sure suicide. + if (mFileDesc == PR_STDOUT || mFileDesc == PR_STDERR) + { + std::cout.write(aBuf, aCount); + *aWriteCount = aCount; + return NS_OK; + } +#endif + if (!mFileDesc) + return NS_FILE_RESULT(PR_BAD_DESCRIPTOR_ERROR); + if (mFailed) + return NS_ERROR_FAILURE; + + if (!mGotBuffers) + { + nsresult rv = AllocateBuffers(kOuputBufferSegmentSize, kOuputBufferMaxSize); + if (NS_FAILED(rv)) + return rv; // try to write non-buffered? + } + + PRUint32 bufOffset = 0; + PRUint32 currentWrite = 0; + while (aCount > 0) + { + if (mWriteCursor == nsnull || mWriteCursor == mWriteLimit) + { + char* seg = mOutBuffer.AppendNewSegment(); + if (seg == nsnull) + { + // buffer is full, try again + InternalFlush(PR_FALSE); + seg = mOutBuffer.AppendNewSegment(); + if (seg == nsnull) + return NS_ERROR_OUT_OF_MEMORY; + } + mWriteCursor = seg; + mWriteLimit = seg + mOutBuffer.GetSegmentSize(); + } + + // move + currentWrite = mWriteLimit - mWriteCursor; + + if (aCount < currentWrite) + currentWrite = aCount; + + memcpy(mWriteCursor, (aBuf + bufOffset), currentWrite); + + mWriteCursor += currentWrite; + + aCount -= currentWrite; + bufOffset += currentWrite; + *aWriteCount += currentWrite; + } + + return NS_OK; +} + +static NS_METHOD +nsWriteSegmentToFile(nsIInputStream* in, + void* closure, + const char* fromRawSegment, + PRUint32 toOffset, + PRUint32 count, + PRUint32 *writeCount) +{ + NS_NOTREACHED("nsWriteSegmentToFile"); + return NS_ERROR_NOT_IMPLEMENTED; +} + +NS_IMETHODIMP +FileImpl::WriteFrom(nsIInputStream *inStr, PRUint32 count, PRUint32 *result) +{ + return inStr->ReadSegments(nsWriteSegmentToFile, nsnull, count, result); +} + +NS_IMETHODIMP +FileImpl::WriteSegments(nsReadSegmentFun reader, void * closure, + PRUint32 count, PRUint32 *result) +{ + NS_NOTREACHED("WriteSegments"); + return NS_ERROR_NOT_IMPLEMENTED; +} + +NS_IMETHODIMP +FileImpl::IsNonBlocking(PRBool *aNonBlocking) +{ + *aNonBlocking = PR_FALSE; + return NS_OK; +} + +//---------------------------------------------------------------------------------------- +NS_IMETHODIMP FileImpl::Tell(PRInt64* outWhere) +//---------------------------------------------------------------------------------------- +{ + if (mFileDesc==PR_STDIN || mFileDesc==PR_STDOUT || mFileDesc==PR_STDERR || !mFileDesc) + return NS_FILE_RESULT(PR_BAD_DESCRIPTOR_ERROR); + *outWhere = PR_Seek64(mFileDesc, 0, PR_SEEK_CUR); + return NS_OK; +} // FileImpl::Tell + +//---------------------------------------------------------------------------------------- +NS_IMETHODIMP FileImpl::Close() +//---------------------------------------------------------------------------------------- +{ + if ((mNSPRMode & PR_RDONLY) == 0) + InternalFlush(PR_FALSE); + + if (mFileDesc==PR_STDIN || mFileDesc==PR_STDOUT || mFileDesc==PR_STDERR || !mFileDesc) + return NS_OK; + if (PR_Close(mFileDesc) == PR_SUCCESS) + mFileDesc = 0; + else + return NS_FILE_RESULT(PR_GetError()); + return NS_OK; +} // FileImpl::close + +//---------------------------------------------------------------------------------------- +NS_IMETHODIMP FileImpl::Flush() +//---------------------------------------------------------------------------------------- +{ + // for external callers, this will do a Sync as well as flush buffers. + return InternalFlush(PR_TRUE); +} // FileImpl::flush + + +//---------------------------------------------------------------------------------------- +NS_IMETHODIMP FileImpl::GetAtEOF(PRBool* outAtEOF) +//---------------------------------------------------------------------------------------- +{ + *outAtEOF = mEOF; + return NS_OK; +} + + +//---------------------------------------------------------------------------------------- +NS_IMETHODIMP FileImpl::SetAtEOF(PRBool inAtEOF) +//---------------------------------------------------------------------------------------- +{ + mEOF = inAtEOF; + return NS_OK; +} + +//---------------------------------------------------------------------------------------- +NS_IMETHODIMP FileImpl::SetEOF() +//---------------------------------------------------------------------------------------- +{ + NS_NOTYETIMPLEMENTED("FileImpl::SetEOF"); + return NS_ERROR_NOT_IMPLEMENTED; +} + +//---------------------------------------------------------------------------------------- +nsresult FileImpl::AllocateBuffers(PRUint32 segmentSize, PRUint32 maxBufSize) +//---------------------------------------------------------------------------------------- +{ + nsresult rv = mOutBuffer.Init(segmentSize, maxBufSize); + if (NS_SUCCEEDED(rv)) + mGotBuffers = PR_TRUE; + + return rv; +} + +// external callers of Flush will have sync get called, +// but internal callers just want to flush the buffers to disk. +nsresult FileImpl::InternalFlush(PRBool syncFile) +{ +#ifdef XP_MAC + if (mFileDesc == PR_STDOUT || mFileDesc == PR_STDERR) + { + std::cout.flush(); + return NS_OK; + } +#endif + if (!mFileDesc) + return NS_FILE_RESULT(PR_BAD_DESCRIPTOR_ERROR); + + PRInt32 segCount = mOutBuffer.GetSegmentCount(); + PRUint32 segSize = mOutBuffer.GetSegmentSize(); + + for (PRInt32 i = 0; i < segCount; i++) + { + char* seg = mOutBuffer.GetSegment(i); + + // if it is the last buffer, it may not be completely full. + if(i == (segCount-1)) + segSize = (mWriteCursor - seg); + + PRInt32 bytesWrit = PR_Write(mFileDesc, seg, segSize); + if (bytesWrit != (PRInt32)segSize) + { + mFailed = PR_TRUE; + return NS_FILE_RESULT(PR_GetError()); + } + } + + if (mGotBuffers) + mOutBuffer.Empty(); + mWriteCursor = nsnull; + mWriteLimit = nsnull; + + // On unix, it seems to fail always. + if (syncFile && PR_Sync(mFileDesc) != PR_SUCCESS) + mFailed = PR_TRUE; + + return NS_OK; +} +//---------------------------------------------------------------------------------------- +nsresult NS_NewTypicalInputFileStream( + nsISupports** aResult, + const nsFileSpec& inFile + /*Default nsprMode == PR_RDONLY*/ + /*Default accessmode = 0666 (octal)*/) +// Factory method to get an nsInputStream from a file, using most common options +//---------------------------------------------------------------------------------------- +{ + // This QueryInterface was needed because NS_NewIOFileStream + // does a cast from (void *) to (nsISupports *) thus causing a + // vtable problem on Windows, where we really didn't have the proper pointer + // to an nsIInputStream, this ensures that we do + nsISupports * supports; + nsIInputStream * inStr; + + nsresult rv = NS_NewIOFileStream(&supports, inFile, PR_RDONLY, 0666); + + *aResult = nsnull; + if (NS_SUCCEEDED(rv)) { + if (NS_SUCCEEDED(supports->QueryInterface(NS_GET_IID(nsIInputStream), (void**)&inStr))) { + *aResult = inStr; + } + NS_RELEASE(supports); + } + return rv; +} + +//---------------------------------------------------------------------------------------- +nsresult NS_NewTypicalOutputFileStream( + nsISupports** aResult, + const nsFileSpec& inFile + /*default nsprMode= (PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE)*/ + /*Default accessMode= 0666 (octal)*/) +// Factory method to get an nsOutputStream to a file - most common case. +//---------------------------------------------------------------------------------------- +{ + // This QueryInterface was needed because NS_NewIOFileStream + // does a cast from (void *) to (nsISupports *) thus causing a + // vtable problem on Windows, where we really didn't have the proper pointer + // to an nsIOutputStream, this ensures that we do +#if 1 +/* nsISupports * supports; + nsIOutputStream * outStr; + + nsresult rv = NS_NewIOFileStream( + &supports, + inFile, + (PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE), + 0666); + + *aResult = nsnull; + if (NS_SUCCEEDED(rv)) { + if (NS_SUCCEEDED(supports->QueryInterface(NS_GET_IID(nsIOutputStream), (void**)&outStr))) { + *aResult = outStr; + } + NS_RELEASE(supports); + } + return rv; + */ + + nsCOMPtr<nsISupports> supports; + nsIOutputStream * outStr; + + nsresult rv = NS_NewIOFileStream( + getter_AddRefs(supports), + inFile, + (PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE), + 0666); + + *aResult = nsnull; + if (NS_SUCCEEDED(rv)) { + if (NS_SUCCEEDED(supports->QueryInterface(NS_GET_IID(nsIOutputStream), (void**)&outStr))) { + *aResult = outStr; + } + } + return rv; +#else + return NS_NewIOFileStream( + aResult, + inFile, + (PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE), + 0666); +#endif +} + +//---------------------------------------------------------------------------------------- +NS_COM_OBSOLETE nsresult NS_NewIOFileStream( + nsISupports** aResult, + const nsFileSpec& inFile, + PRInt32 nsprMode /*default = (PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE)*/, + PRInt32 accessMode /*Default = 0666 (octal)*/) + // Factory method to get an object that implements both nsIInputStream + // and nsIOutputStream, associated with a file. +//---------------------------------------------------------------------------------------- +{ + NS_PRECONDITION(aResult != nsnull, "null ptr"); + if (!aResult) + return NS_ERROR_NULL_POINTER; + + FileImpl* stream = new FileImpl(inFile, nsprMode, accessMode); + if (! stream) + return NS_ERROR_OUT_OF_MEMORY; + + NS_ADDREF(stream); + PRBool isOpened = PR_FALSE; + stream->GetIsOpen(&isOpened); + if (!isOpened) + { + NS_RELEASE(stream); + return NS_ERROR_FAILURE; + } + + *aResult = (nsISupports*)(void*)stream; + return NS_OK; +} + |