tools/profiler/LulRWLock.h@97036ab72558 (annotated)
tools/profiler/LulRWLock.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 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* vim: set ts=8 sts=2 et sw=2 tw=80: */ |
| michael@0 | 3 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 5 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 6 | |
| michael@0 | 7 | #ifndef LulRWLock_h |
| michael@0 | 8 | #define LulRWLock_h |
| michael@0 | 9 | |
| michael@0 | 10 | #include "LulPlatformMacros.h" |
| michael@0 | 11 | #include <pthread.h> |
| michael@0 | 12 | |
| michael@0 | 13 | // This class provides a simple wrapper around reader-writer locks. |
| michael@0 | 14 | // This is necessary because Android 2.2's libpthread does not |
| michael@0 | 15 | // provide such functionality, so there has to be a way to provide |
| michael@0 | 16 | // an alternative with an equivalent interface. |
| michael@0 | 17 | |
| michael@0 | 18 | namespace lul { |
| michael@0 | 19 | |
| michael@0 | 20 | class LulRWLock { |
| michael@0 | 21 | |
| michael@0 | 22 | public: |
| michael@0 | 23 | LulRWLock(); |
| michael@0 | 24 | ~LulRWLock(); |
| michael@0 | 25 | void WrLock(); |
| michael@0 | 26 | void RdLock(); |
| michael@0 | 27 | void Unlock(); |
| michael@0 | 28 | |
| michael@0 | 29 | private: |
| michael@0 | 30 | #if defined(LUL_OS_android) |
| michael@0 | 31 | pthread_mutex_t mLock; |
| michael@0 | 32 | #elif defined(LUL_OS_linux) |
| michael@0 | 33 | pthread_rwlock_t mLock; |
| michael@0 | 34 | #else |
| michael@0 | 35 | # error "Unsupported OS" |
| michael@0 | 36 | #endif |
| michael@0 | 37 | |
| michael@0 | 38 | }; |
| michael@0 | 39 | |
| michael@0 | 40 | } // namespace lul |
| michael@0 | 41 | |
| michael@0 | 42 | #endif // LulRWLock_h |
