gfx/2d/StackArray.h@97036ab72558 (annotated)
gfx/2d/StackArray.h
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 2 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 3 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 4 | |
| michael@0 | 5 | /* A handy class that will allocate data for size*T objects on the stack and |
| michael@0 | 6 | * otherwise allocate them on the heap. It is similar in purpose to nsAutoTArray */ |
| michael@0 | 7 | |
| michael@0 | 8 | template <class T, size_t size> |
| michael@0 | 9 | class StackArray |
| michael@0 | 10 | { |
| michael@0 | 11 | public: |
| michael@0 | 12 | StackArray(size_t count) { |
| michael@0 | 13 | if (count > size) { |
| michael@0 | 14 | mData = new T[count]; |
| michael@0 | 15 | } else { |
| michael@0 | 16 | mData = mStackData; |
| michael@0 | 17 | } |
| michael@0 | 18 | } |
| michael@0 | 19 | ~StackArray() { |
| michael@0 | 20 | if (mData != mStackData) { |
| michael@0 | 21 | delete[] mData; |
| michael@0 | 22 | } |
| michael@0 | 23 | } |
| michael@0 | 24 | T& operator[](size_t n) { return mData[n]; } |
| michael@0 | 25 | const T& operator[](size_t n) const { return mData[n]; } |
| michael@0 | 26 | T* data() { return mData; }; |
| michael@0 | 27 | private: |
| michael@0 | 28 | T mStackData[size]; |
| michael@0 | 29 | T* mData; |
| michael@0 | 30 | }; |
