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Bug 414901, back out scriptable IO api, r+sr=bsmedberg,a=beltzner

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2008-01-31 11:18:07 -08:00
parent 1e6651be67
commit eddf0face9
23 changed files with 70 additions and 1936 deletions
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261
xpcom/io/nsScriptableOutputStream.cpp
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@@ -1,261 +0,0 @@
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** 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):
*
* 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 "nsScriptableOutputStream.h"
#include "nsIProgrammingLanguage.h"
#include "nsAutoPtr.h"
#include "nsMemory.h"
#include "nsString.h"
#include "nsIClassInfoImpl.h"
// needed for NS_SWAP macros
#include "nsIStreamBufferAccess.h"
NS_IMPL_THREADSAFE_ADDREF(nsScriptableOutputStream)
NS_IMPL_THREADSAFE_RELEASE(nsScriptableOutputStream)
NS_IMPL_QUERY_INTERFACE3_CI(nsScriptableOutputStream,
nsIOutputStream,
nsIScriptableIOOutputStream,
nsISeekableStream)
NS_IMPL_CI_INTERFACE_GETTER3(nsScriptableOutputStream,
nsIOutputStream,
nsIScriptableIOOutputStream,
nsISeekableStream)
// nsIBaseStream methods
NS_IMETHODIMP
nsScriptableOutputStream::Close(void)
{
if (mUnicharOutputStream)
return mUnicharOutputStream->Close();
if (mOutputStream)
return mOutputStream->Close();
return NS_ERROR_NOT_INITIALIZED;
}
NS_IMETHODIMP
nsScriptableOutputStream::Flush(void)
{
if (mUnicharOutputStream)
return mUnicharOutputStream->Flush();
if (mOutputStream)
return mOutputStream->Flush();
return NS_ERROR_NOT_INITIALIZED;
}
// nsIScriptableIOOutputStream methods
NS_IMETHODIMP
nsScriptableOutputStream::InitWithStreams(nsIOutputStream* aOutputStream,
nsIUnicharOutputStream *aCharStream)
{
NS_ENSURE_ARG(aOutputStream);
mOutputStream = aOutputStream;
mUnicharOutputStream = aCharStream;
return NS_OK;
}
// nsIOutputStream methods
NS_IMETHODIMP
nsScriptableOutputStream::IsNonBlocking(PRBool *aIsNonBlocking)
{
if (mOutputStream)
return mOutputStream->IsNonBlocking(aIsNonBlocking);
if (mUnicharOutputStream) {
*aIsNonBlocking = PR_FALSE;
return NS_OK;
}
return NS_ERROR_NOT_INITIALIZED;
}
NS_IMETHODIMP
nsScriptableOutputStream::Write(const char* aBuffer, PRUint32 aCount, PRUint32 *aWriteCount)
{
if (mUnicharOutputStream) {
nsAutoString str(NS_ConvertASCIItoUTF16(aBuffer, aCount));
PRBool ok;
mUnicharOutputStream->WriteString(str, &ok);
*aWriteCount = ok ? aCount : 0;
return NS_OK;
}
if (mOutputStream)
return mOutputStream->Write(aBuffer, aCount, aWriteCount);
return NS_ERROR_NOT_INITIALIZED;
}
NS_IMETHODIMP
nsScriptableOutputStream::WriteFrom(nsIInputStream *aStream, PRUint32 aCount, PRUint32 *aWriteCount)
{
if (mOutputStream)
return mOutputStream->WriteFrom(aStream, aCount, aWriteCount);
return NS_ERROR_NOT_INITIALIZED;
}
NS_IMETHODIMP
nsScriptableOutputStream::WriteSegments(nsReadSegmentFun aFn,
void* aClosure,
PRUint32 aCount,
PRUint32 *aReadCount)
{
NS_ENSURE_TRUE(mOutputStream, NS_ERROR_NOT_INITIALIZED);
return mOutputStream->WriteSegments(aFn, aClosure, aCount, aReadCount);
}
NS_IMETHODIMP
nsScriptableOutputStream::WriteString(const nsAString& aString, PRBool *aOK)
{
if (mUnicharOutputStream)
return mUnicharOutputStream->WriteString(aString, aOK);
if (!mOutputStream)
return NS_ERROR_NOT_INITIALIZED;
// just convert to ASCII and call Write
nsCAutoString cstr = NS_LossyConvertUTF16toASCII(aString);
PRUint32 count;
nsresult rv = mOutputStream->Write(cstr.get(), (PRUint32)cstr.Length(), &count);
NS_ENSURE_SUCCESS(rv, rv);
*aOK = (count == cstr.Length());
return NS_OK;
}
NS_IMETHODIMP
nsScriptableOutputStream::WriteBoolean(PRBool aBoolean)
{
return Write8(aBoolean);
}
NS_IMETHODIMP
nsScriptableOutputStream::Write8(PRUint8 aByte)
{
return WriteFully((const char *)&aByte, sizeof aByte);
}
NS_IMETHODIMP
nsScriptableOutputStream::Write16(PRUint16 a16)
{
a16 = NS_SWAP16(a16);
return WriteFully((const char *)&a16, sizeof a16);
}
NS_IMETHODIMP
nsScriptableOutputStream::Write32(PRUint32 a32)
{
a32 = NS_SWAP32(a32);
return WriteFully((const char *)&a32, sizeof a32);
}
NS_IMETHODIMP
nsScriptableOutputStream::WriteFloat(float aFloat)
{
NS_ASSERTION(sizeof(float) == sizeof (PRUint32),
"False assumption about sizeof(float)");
return Write32(*reinterpret_cast<PRUint32*>(&aFloat));
}
NS_IMETHODIMP
nsScriptableOutputStream::WriteDouble(double aDouble)
{
NS_ASSERTION(sizeof(double) == sizeof(PRUint64),
"False assumption about sizeof(double)");
PRUint64 val = NS_SWAP64(*reinterpret_cast<PRUint64*>(&aDouble));
return WriteFully(reinterpret_cast<char*>(&val), sizeof val);
}
NS_IMETHODIMP
nsScriptableOutputStream::WriteByteArray(PRUint8 *aBytes, PRUint32 aCount)
{
return WriteFully((char *)aBytes, aCount);
}
nsresult
nsScriptableOutputStream::WriteFully(const char *aBuf, PRUint32 aCount)
{
NS_ENSURE_TRUE(mOutputStream, NS_ERROR_NOT_INITIALIZED);
PRUint32 bytesWritten;
nsresult rv = mOutputStream->Write(aBuf, aCount, &bytesWritten);
NS_ENSURE_SUCCESS(rv, rv);
return (bytesWritten != aCount) ? NS_ERROR_FAILURE : NS_OK;
}
// nsISeekableStream
NS_IMETHODIMP
nsScriptableOutputStream::Seek(PRInt32 aWhence, PRInt64 aOffset)
{
nsCOMPtr<nsISeekableStream> cstream = do_QueryInterface(mOutputStream);
NS_ENSURE_TRUE(cstream, NS_ERROR_NOT_AVAILABLE);
return cstream->Seek(aWhence, aOffset);
}
NS_IMETHODIMP
nsScriptableOutputStream::Tell(PRInt64* aOffset)
{
nsCOMPtr<nsISeekableStream> cstream = do_QueryInterface(mOutputStream);
NS_ENSURE_TRUE(cstream, NS_ERROR_NOT_AVAILABLE);
return cstream->Tell(aOffset);
}
NS_IMETHODIMP
nsScriptableOutputStream::SetEOF()
{
nsCOMPtr<nsISeekableStream> cstream = do_QueryInterface(mOutputStream);
NS_ENSURE_TRUE(cstream, NS_ERROR_NOT_AVAILABLE);
return cstream->SetEOF();
}
NS_METHOD
nsScriptableOutputStream::Create(nsISupports *aOuter, REFNSIID aIID, void **aResult)
{
if (aOuter) return NS_ERROR_NO_AGGREGATION;
nsRefPtr<nsScriptableOutputStream> sos = new nsScriptableOutputStream();
NS_ENSURE_TRUE(sos, NS_ERROR_OUT_OF_MEMORY);
return sos->QueryInterface(aIID, aResult);
}