dom/camera/AutoRwLock.h

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

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 file,
michael@0 3 * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 4
michael@0 5 #ifndef RWLOCK_AUTO_ENTER_H
michael@0 6 #define RWLOCK_AUTO_ENTER_H
michael@0 7
michael@0 8 #include "prrwlock.h"
michael@0 9 #include "mozilla/Assertions.h"
michael@0 10
michael@0 11 class RwLockAutoEnterRead
michael@0 12 {
michael@0 13 public:
michael@0 14 RwLockAutoEnterRead(PRRWLock* aRwLock)
michael@0 15 : mRwLock(aRwLock)
michael@0 16 {
michael@0 17 MOZ_ASSERT(mRwLock);
michael@0 18 PR_RWLock_Rlock(mRwLock);
michael@0 19 }
michael@0 20
michael@0 21 ~RwLockAutoEnterRead()
michael@0 22 {
michael@0 23 PR_RWLock_Unlock(mRwLock);
michael@0 24 }
michael@0 25
michael@0 26 protected:
michael@0 27 PRRWLock* mRwLock;
michael@0 28 };
michael@0 29
michael@0 30 class RwLockAutoEnterWrite
michael@0 31 {
michael@0 32 public:
michael@0 33 RwLockAutoEnterWrite(PRRWLock* aRwLock)
michael@0 34 : mRwLock(aRwLock)
michael@0 35 {
michael@0 36 MOZ_ASSERT(mRwLock);
michael@0 37 PR_RWLock_Wlock(mRwLock);
michael@0 38 }
michael@0 39
michael@0 40 ~RwLockAutoEnterWrite()
michael@0 41 {
michael@0 42 PR_RWLock_Unlock(mRwLock);
michael@0 43 }
michael@0 44
michael@0 45 protected:
michael@0 46 PRRWLock* mRwLock;
michael@0 47 };
michael@0 48
michael@0 49 #endif // RWLOCK_AUTO_ENTER_H

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