This commit is contained in:
JoelKatz
2011-12-30 23:16:07 -08:00
parent 812df57fcf
commit ecd63370f6

View File

@@ -9,44 +9,62 @@
class ScopedLock
{
private:
boost::recursive_mutex *mMutex; // parent object has greater scope, so guaranteed valid
mutable bool mValid;
boost::recursive_mutex *mMutex; // parent object has greater scope, so guaranteed valid
mutable bool mValid;
ScopedLock(); // no implementation
ScopedLock(); // no implementation
public:
ScopedLock(boost::recursive_mutex &mutex) : mMutex(&mutex), mValid(true)
{
mMutex->lock();
}
ScopedLock(boost::recursive_mutex &mutex) : mMutex(&mutex), mValid(true)
{
mMutex->lock();
}
~ScopedLock()
{
if(mValid) mMutex->unlock();
}
~ScopedLock()
{
if(mValid) mMutex->unlock();
}
ScopedLock(const ScopedLock &sl)
{
mMutex=sl.mMutex;
if(sl.mValid)
{
mValid=true;
sl.mValid=false;
}
else mValid=false;
}
ScopedLock(const ScopedLock &sl)
{
mMutex=sl.mMutex;
if(sl.mValid)
{
mValid=true;
sl.mValid=false;
}
else mValid=false;
}
ScopedLock &operator=(const ScopedLock &sl)
{ // we inherit any lock the other class member had
if(mValid) mMutex->unlock();
mMutex=sl.mMutex;
if(sl.mValid)
{
mValid=true;
sl.mValid=false;
}
return *this;
}
ScopedLock &operator=(const ScopedLock &sl)
{ // we inherit any lock the other class member had
if(mMutex!=sl.mMutex)
{
if(mValid) mMutex->unlock();
mMutex=sl.mMutex;
mMutex->lock();
mValid=true;
}
return *this;
}
void unlock(void)
{
if(mValid)
{
mMutex->unlock();
mValid=false;
}
}
void lock(void)
{
if(mValid)
{
mMutex->lock();
mValid=true;
}
}
};
#endif