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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/*
** C++ access to NSPR locks (PRLock)
*/
#if defined(_RCLOCK_H)
#else
#define _RCLOCK_H
#include "rcbase.h"
#include <prlock.h>
class PR_IMPLEMENT(RCLock): public RCBase
{
public:
RCLock();
virtual ~RCLock();
void Acquire(); /* non-reentrant */
void Release(); /* should be by owning thread */
friend class RCCondition;
private:
RCLock(const RCLock&); /* can't do that */
void operator=(const RCLock&); /* nor that */
PRLock *lock;
}; /* RCLock */
/*
** Class: RCEnter
**
** In scope locks. You can only allocate them on the stack. The language
** will insure that they get released (by calling the destructor) when
** the thread leaves scope, even if via an exception.
*/
class PR_IMPLEMENT(RCEnter)
{
public:
~RCEnter(); /* releases the lock */
RCEnter(RCLock*); /* acquires the lock */
private:
RCLock *lock;
RCEnter();
RCEnter(const RCEnter&);
void operator=(const RCEnter&);
void *operator new(PRSize) {
return NULL;
}
void operator delete(void*) { }
}; /* RCEnter */
inline RCEnter::RCEnter(RCLock* ml) {
lock = ml;
lock->Acquire();
}
inline RCEnter::~RCEnter() {
lock->Release();
lock = NULL;
}
#endif /* defined(_RCLOCK_H) */
/* RCLock.h */
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