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e368dc9c85
This patch was generated by a script. Here's the source of the script for future reference: function convert() { echo "Converting $1 to $2..." find . ! -wholename "*nsprpub*" \ ! -wholename "*security/nss*" \ ! -wholename "*/.hg*" \ ! -wholename "obj-ff-dbg*" \ ! -name nsXPCOMCID.h \ ! -name prtypes.h \ -type f \ \( -iname "*.cpp" \ -o -iname "*.h" \ -o -iname "*.c" \ -o -iname "*.cc" \ -o -iname "*.idl" \ -o -iname "*.ipdl" \ -o -iname "*.ipdlh" \ -o -iname "*.mm" \) | \ xargs -n 1 sed -i -e "s/\b$1\b/$2/g" } convert PRInt8 int8_t convert PRUint8 uint8_t convert PRInt16 int16_t convert PRUint16 uint16_t convert PRInt32 int32_t convert PRUint32 uint32_t convert PRInt64 int64_t convert PRUint64 uint64_t convert PRIntn int convert PRUintn unsigned convert PRSize size_t convert PROffset32 int32_t convert PROffset64 int64_t convert PRPtrdiff ptrdiff_t convert PRFloat64 double
109 lines
3.0 KiB
C++
109 lines
3.0 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsScriptableInputStream.h"
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#include "nsMemory.h"
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#include "nsString.h"
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NS_IMPL_ISUPPORTS1(nsScriptableInputStream, nsIScriptableInputStream)
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// nsIScriptableInputStream methods
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NS_IMETHODIMP
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nsScriptableInputStream::Close(void) {
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if (!mInputStream) return NS_ERROR_NOT_INITIALIZED;
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return mInputStream->Close();
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}
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NS_IMETHODIMP
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nsScriptableInputStream::Init(nsIInputStream *aInputStream) {
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if (!aInputStream) return NS_ERROR_NULL_POINTER;
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mInputStream = aInputStream;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsScriptableInputStream::Available(uint64_t *_retval) {
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if (!mInputStream) return NS_ERROR_NOT_INITIALIZED;
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return mInputStream->Available(_retval);
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}
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NS_IMETHODIMP
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nsScriptableInputStream::Read(uint32_t aCount, char **_retval) {
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nsresult rv = NS_OK;
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uint64_t count64 = 0;
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char *buffer = nullptr;
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if (!mInputStream) return NS_ERROR_NOT_INITIALIZED;
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rv = mInputStream->Available(&count64);
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if (NS_FAILED(rv)) return rv;
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// bug716556 - Ensure count+1 doesn't overflow
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uint32_t count = NS_MIN((uint32_t)NS_MIN<uint64_t>(count64, aCount), PR_UINT32_MAX - 1);
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buffer = (char*)nsMemory::Alloc(count+1); // make room for '\0'
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if (!buffer) return NS_ERROR_OUT_OF_MEMORY;
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uint32_t amtRead = 0;
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rv = mInputStream->Read(buffer, count, &amtRead);
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if (NS_FAILED(rv)) {
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nsMemory::Free(buffer);
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return rv;
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}
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buffer[amtRead] = '\0';
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*_retval = buffer;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsScriptableInputStream::ReadBytes(uint32_t aCount, nsACString &_retval) {
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if (!mInputStream) {
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return NS_ERROR_NOT_INITIALIZED;
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}
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_retval.SetLength(aCount);
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if (_retval.Length() != aCount) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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char *ptr = _retval.BeginWriting();
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uint32_t totalBytesRead = 0;
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while (1) {
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uint32_t bytesRead;
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nsresult rv = mInputStream->Read(ptr + totalBytesRead,
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aCount - totalBytesRead,
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&bytesRead);
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if (NS_FAILED(rv)) {
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return rv;
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}
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totalBytesRead += bytesRead;
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if (totalBytesRead == aCount) {
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break;
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}
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// If we have read zero bytes, we have hit EOF.
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if (bytesRead == 0) {
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_retval.Truncate();
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return NS_ERROR_FAILURE;
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}
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}
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return NS_OK;
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}
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nsresult
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nsScriptableInputStream::Create(nsISupports *aOuter, REFNSIID aIID, void **aResult) {
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if (aOuter) return NS_ERROR_NO_AGGREGATION;
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nsScriptableInputStream *sis = new nsScriptableInputStream();
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if (!sis) return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(sis);
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nsresult rv = sis->QueryInterface(aIID, aResult);
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NS_RELEASE(sis);
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return rv;
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}
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