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cd3e8a6f73
Backed out changeset 7d06b68c44d0 (bug 1079335) Backed out changeset 92030169528e (bug 1079301) Backed out changeset c09d7f95554a (bug 1047483) Backed out changeset c199f1057d7e (bug 1047483) Backed out changeset 18830d07884c (bug 1047483) Backed out changeset e087289ccfbb (bug 1047483) Backed out changeset 6238ff5d3ed0 (bug 1047483) CLOSED TREE --HG-- rename : content/base/public/File.h => content/base/public/nsDOMFile.h rename : content/base/src/MultipartFileImpl.cpp => content/base/src/nsDOMBlobBuilder.cpp rename : content/base/src/MultipartFileImpl.h => content/base/src/nsDOMBlobBuilder.h rename : content/base/src/File.cpp => content/base/src/nsDOMFile.cpp
75 lines
2.3 KiB
C++
75 lines
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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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 "EncodedBufferCache.h"
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#include "nsAnonymousTemporaryFile.h"
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#include "nsDOMFile.h"
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#include "prio.h"
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namespace mozilla {
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void
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EncodedBufferCache::AppendBuffer(nsTArray<uint8_t> & aBuf)
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{
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MutexAutoLock lock(mMutex);
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mDataSize += aBuf.Length();
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mEncodedBuffers.AppendElement()->SwapElements(aBuf);
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if (!mTempFileEnabled && mDataSize > mMaxMemoryStorage) {
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nsresult rv = NS_OpenAnonymousTemporaryFile(&mFD);
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if (!NS_FAILED(rv)) {
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mTempFileEnabled = true;
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}
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}
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if (mTempFileEnabled) {
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// has created temporary file, write buffer in it
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for (uint32_t i = 0; i < mEncodedBuffers.Length(); i++) {
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int32_t amount = PR_Write(mFD, mEncodedBuffers.ElementAt(i).Elements(), mEncodedBuffers.ElementAt(i).Length());
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if (amount < 0 || size_t(amount) < mEncodedBuffers.ElementAt(i).Length()) {
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NS_WARNING("Failed to write media cache block!");
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}
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}
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mEncodedBuffers.Clear();
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}
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}
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already_AddRefed<nsIDOMBlob>
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EncodedBufferCache::ExtractBlob(const nsAString &aContentType)
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{
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MutexAutoLock lock(mMutex);
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nsCOMPtr<nsIDOMBlob> blob;
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if (mTempFileEnabled) {
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// generate new temporary file to write
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blob = dom::DOMFile::CreateTemporaryFileBlob(mFD, 0, mDataSize,
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aContentType);
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// fallback to memory blob
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mTempFileEnabled = false;
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mDataSize = 0;
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mFD = nullptr;
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} else {
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void* blobData = moz_malloc(mDataSize);
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NS_ASSERTION(blobData, "out of memory!!");
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if (blobData) {
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for (uint32_t i = 0, offset = 0; i < mEncodedBuffers.Length(); i++) {
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memcpy((uint8_t*)blobData + offset, mEncodedBuffers.ElementAt(i).Elements(),
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mEncodedBuffers.ElementAt(i).Length());
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offset += mEncodedBuffers.ElementAt(i).Length();
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}
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blob = dom::DOMFile::CreateMemoryFile(blobData, mDataSize, aContentType);
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mEncodedBuffers.Clear();
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} else
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return nullptr;
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}
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mDataSize = 0;
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return blob.forget();
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}
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} //end namespace
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