1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/nsprpub/pr/src/cplus/rclock.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,66 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/*
1.10 +** C++ access to NSPR locks (PRLock)
1.11 +*/
1.12 +
1.13 +#if defined(_RCLOCK_H)
1.14 +#else
1.15 +#define _RCLOCK_H
1.16 +
1.17 +#include "rcbase.h"
1.18 +
1.19 +#include <prlock.h>
1.20 +
1.21 +class PR_IMPLEMENT(RCLock): public RCBase
1.22 +{
1.23 +public:
1.24 + RCLock();
1.25 + virtual ~RCLock();
1.26 +
1.27 + void Acquire(); /* non-reentrant */
1.28 + void Release(); /* should be by owning thread */
1.29 +
1.30 + friend class RCCondition;
1.31 +
1.32 +private:
1.33 + RCLock(const RCLock&); /* can't do that */
1.34 + void operator=(const RCLock&); /* nor that */
1.35 +
1.36 + PRLock *lock;
1.37 +}; /* RCLock */
1.38 +
1.39 +/*
1.40 +** Class: RCEnter
1.41 +**
1.42 +** In scope locks. You can only allocate them on the stack. The language
1.43 +** will insure that they get released (by calling the destructor) when
1.44 +** the thread leaves scope, even if via an exception.
1.45 +*/
1.46 +class PR_IMPLEMENT(RCEnter)
1.47 +{
1.48 +public:
1.49 + ~RCEnter(); /* releases the lock */
1.50 + RCEnter(RCLock*); /* acquires the lock */
1.51 +
1.52 +private:
1.53 + RCLock *lock;
1.54 +
1.55 + RCEnter();
1.56 + RCEnter(const RCEnter&);
1.57 + void operator=(const RCEnter&);
1.58 +
1.59 + void *operator new(PRSize) { return NULL; }
1.60 + void operator delete(void*) { }
1.61 +}; /* RCEnter */
1.62 +
1.63 +
1.64 +inline RCEnter::RCEnter(RCLock* ml) { lock = ml; lock->Acquire(); }
1.65 +inline RCEnter::~RCEnter() { lock->Release(); lock = NULL; }
1.66 +
1.67 +#endif /* defined(_RCLOCK_H) */
1.68 +
1.69 +/* RCLock.h */
