|
public static CompareExchange ( |
||
| location | ||
| value | ||
| comparand | ||
| return | ||
public static IntPtr CompareExchange(ref IntPtr location, IntPtr value, IntPtr comparand)
{
return Interlocked.CompareExchange(ref location, value, comparand);
}
| ClientInterlocked::CompareExchange ( double &location, double value, double comparand ) : double | |
| ClientInterlocked::CompareExchange ( float &location, float value, float comparand ) : float | |
| ClientInterlocked::CompareExchange ( int &location, int value, int comparand ) : int | |
| ClientInterlocked::CompareExchange ( long &location, long value, long comparand ) : long | |
| ClientInterlocked::CompareExchange ( object &location, object value, object comparand ) : object |
public void EnterWriteLock()
{
ClientSpinWait sw = new ClientSpinWait();
do
{
int state = rwlock;
if (state < RwWrite)
{
if (ClientInterlocked.CompareExchange(ref rwlock, RwWrite, state) == state)
{
return;
}
state = rwlock;
}
// We register our interest in taking the Write lock (if upgradeable it's already done)
while ((state & RwWait) == 0 && ClientInterlocked.CompareExchange(ref rwlock, state | RwWait, state) != state)
{
state = rwlock;
}
// Before falling to sleep
while (rwlock > RwWait)
{
sw.SpinOnce();
}
} while (true);
}
