The Tor Browser / file comparison
comparison: content/media/EncodedBufferCache.cpp
content/media/EncodedBufferCache.cpp
- branch
- TOR_BUG_9701
- changeset 13
- 44a2da4a2ab2
equal
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replaced
| -1:000000000000 | 0:f748ebd1ddae |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim:set ts=2 sw=2 sts=2 et cindent: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #include "EncodedBufferCache.h" | |
| 8 #include "nsAnonymousTemporaryFile.h" | |
| 9 #include "nsDOMFile.h" | |
| 10 #include "prio.h" | |
| 11 | |
| 12 namespace mozilla { | |
| 13 | |
| 14 void | |
| 15 EncodedBufferCache::AppendBuffer(nsTArray<uint8_t> & aBuf) | |
| 16 { | |
| 17 MutexAutoLock lock(mMutex); | |
| 18 mDataSize += aBuf.Length(); | |
| 19 | |
| 20 mEncodedBuffers.AppendElement()->SwapElements(aBuf); | |
| 21 | |
| 22 if (!mTempFileEnabled && mDataSize > mMaxMemoryStorage) { | |
| 23 nsresult rv = NS_OpenAnonymousTemporaryFile(&mFD); | |
| 24 if (!NS_FAILED(rv)) { | |
| 25 mTempFileEnabled = true; | |
| 26 } | |
| 27 } | |
| 28 | |
| 29 if (mTempFileEnabled) { | |
| 30 // has created temporary file, write buffer in it | |
| 31 for (uint32_t i = 0; i < mEncodedBuffers.Length(); i++) { | |
| 32 int64_t amount = PR_Write(mFD, mEncodedBuffers.ElementAt(i).Elements(), mEncodedBuffers.ElementAt(i).Length()); | |
| 33 if (amount < mEncodedBuffers.ElementAt(i).Length()) { | |
| 34 NS_WARNING("Failed to write media cache block!"); | |
| 35 } | |
| 36 } | |
| 37 mEncodedBuffers.Clear(); | |
| 38 } | |
| 39 | |
| 40 } | |
| 41 | |
| 42 already_AddRefed<nsIDOMBlob> | |
| 43 EncodedBufferCache::ExtractBlob(const nsAString &aContentType) | |
| 44 { | |
| 45 MutexAutoLock lock(mMutex); | |
| 46 nsCOMPtr<nsIDOMBlob> blob; | |
| 47 if (mTempFileEnabled) { | |
| 48 // generate new temporary file to write | |
| 49 blob = new nsDOMTemporaryFileBlob(mFD, 0, mDataSize, aContentType); | |
| 50 // fallback to memory blob | |
| 51 mTempFileEnabled = false; | |
| 52 mDataSize = 0; | |
| 53 mFD = nullptr; | |
| 54 } else { | |
| 55 void* blobData = moz_malloc(mDataSize); | |
| 56 NS_ASSERTION(blobData, "out of memory!!"); | |
| 57 | |
| 58 if (blobData) { | |
| 59 for (uint32_t i = 0, offset = 0; i < mEncodedBuffers.Length(); i++) { | |
| 60 memcpy((uint8_t*)blobData + offset, mEncodedBuffers.ElementAt(i).Elements(), | |
| 61 mEncodedBuffers.ElementAt(i).Length()); | |
| 62 offset += mEncodedBuffers.ElementAt(i).Length(); | |
| 63 } | |
| 64 blob = new nsDOMMemoryFile(blobData, mDataSize, | |
| 65 aContentType); | |
| 66 mEncodedBuffers.Clear(); | |
| 67 } else | |
| 68 return nullptr; | |
| 69 } | |
| 70 mDataSize = 0; | |
| 71 return blob.forget(); | |
| 72 } | |
| 73 | |
| 74 } //end namespace |
