gecko-dev/dom/quota/EncryptingOutputStream.cpp

65 строки
2.0 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "EncryptingOutputStream.h"
#include "EncryptingOutputStream_impl.h"
#include <type_traits>
#include "mozilla/MacroForEach.h"
#include "nsStreamUtils.h"
namespace mozilla::dom::quota {
NS_IMPL_ISUPPORTS(EncryptingOutputStreamBase, nsIOutputStream);
EncryptingOutputStreamBase::EncryptingOutputStreamBase(
nsCOMPtr<nsIOutputStream> aBaseStream, size_t aBlockSize)
: mBaseStream(WrapNotNull(std::move(aBaseStream))),
mBlockSize(aBlockSize) {}
NS_IMETHODIMP EncryptingOutputStreamBase::Write(const char* aBuf,
uint32_t aCount,
uint32_t* aResultOut) {
return WriteSegments(NS_CopySegmentToBuffer, const_cast<char*>(aBuf), aCount,
aResultOut);
}
NS_IMETHODIMP EncryptingOutputStreamBase::WriteFrom(nsIInputStream*, uint32_t,
uint32_t*) {
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP EncryptingOutputStreamBase::IsNonBlocking(bool* aNonBlockingOut) {
*aNonBlockingOut = false;
return NS_OK;
}
nsresult EncryptingOutputStreamBase::WriteAll(const char* aBuf, uint32_t aCount,
uint32_t* aBytesWrittenOut) {
*aBytesWrittenOut = 0;
if (!mBaseStream) {
return NS_BASE_STREAM_CLOSED;
}
uint32_t offset = 0;
while (aCount > 0) {
uint32_t numWritten = 0;
nsresult rv = (*mBaseStream)->Write(aBuf + offset, aCount, &numWritten);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
offset += numWritten;
aCount -= numWritten;
*aBytesWrittenOut += numWritten;
}
return NS_OK;
}
} // namespace mozilla::dom::quota