bool add_ref_lock() // true on success
{
NDNBOOST_VERIFY( pthread_mutex_lock( &m_ ) == 0 );
bool r = use_count_ == 0? false: ( ++use_count_, true );
NDNBOOST_VERIFY( pthread_mutex_unlock( &m_ ) == 0 );
return r;
}
long use_count() const // nothrow
{
NDNBOOST_VERIFY( pthread_mutex_lock( &m_ ) == 0 );
long r = use_count_;
NDNBOOST_VERIFY( pthread_mutex_unlock( &m_ ) == 0 );
return r;
}
sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
{
// HPUX 10.20 / DCE has a nonstandard pthread_mutex_init
#if defined(__hpux) && defined(_DECTHREADS_)
NDNBOOST_VERIFY( pthread_mutex_init( &m_, pthread_mutexattr_default ) == 0 );
#else
NDNBOOST_VERIFY( pthread_mutex_init( &m_, 0 ) == 0 );
#endif
}
void weak_release() // nothrow
{
NDNBOOST_VERIFY( pthread_mutex_lock( &m_ ) == 0 );
long new_weak_count = --weak_count_;
NDNBOOST_VERIFY( pthread_mutex_unlock( &m_ ) == 0 );
if( new_weak_count == 0 )
{
destroy();
}
}
void release() // nothrow
{
NDNBOOST_VERIFY( pthread_mutex_lock( &m_ ) == 0 );
long new_use_count = --use_count_;
NDNBOOST_VERIFY( pthread_mutex_unlock( &m_ ) == 0 );
if( new_use_count == 0 )
{
dispose();
weak_release();
}
}
void release_waiters(state_data old_state)
{
if(old_state.exclusive_waiting)
{
NDNBOOST_VERIFY(detail::win32::ReleaseSemaphore(semaphores[exclusive_sem],1,0)!=0);
}
if(old_state.shared_waiting || old_state.exclusive_waiting)
{
NDNBOOST_VERIFY(detail::win32::ReleaseSemaphore(semaphores[unlock_sem],old_state.shared_waiting + (old_state.exclusive_waiting?1:0),0)!=0);
}
}
void add_ref_copy()
{
NDNBOOST_VERIFY( pthread_mutex_lock( &m_ ) == 0 );
++use_count_;
NDNBOOST_VERIFY( pthread_mutex_unlock( &m_ ) == 0 );
}
virtual ~sp_counted_base() // nothrow
{
NDNBOOST_VERIFY( pthread_mutex_destroy( &m_ ) == 0 );
}
void weak_add_ref() // nothrow
{
NDNBOOST_VERIFY( pthread_mutex_lock( &m_ ) == 0 );
++weak_count_;
NDNBOOST_VERIFY( pthread_mutex_unlock( &m_ ) == 0 );
}
