internal void BlockOnInstructionWaitHandle(IBlockingInstruction instr)
{
// Runtime code
instr.WaitHandle.WaitOne();
/* Chess wrapper code
* do
* {
* SyncVarAccess;
* if (!instr.IsCompleted)
* LocalBacktrack();
* }while(true);
*/
}
/// <summary>
/// Blocks the process and notifies the runtime that the state has changed just before blocking.
/// </summary>
internal void BlockProcessOnInstruction(MpiProcess p, IBlockingInstruction instr)
{
Debug.Assert(instr != null);
// Setup state and notify the runtime we've changed the state of the runtime
p.BlockingInstruction = instr;
Interlocked.Increment(ref _blockedProcessesCount);
_runtimeStateChangedEvent.Set();
// And block
BlockOnInstructionWaitHandle(instr);
// Finished blocking, cleanup state
Interlocked.Decrement(ref _blockedProcessesCount);
p.BlockingInstruction = null;
}
/// <summary>
/// Blocks the process and notifies the runtime that the state has changed just before blocking.
/// </summary>
protected void BlockProcessOnInstruction(IBlockingInstruction instr)
{
Runtime.BlockProcessOnInstruction(Process, instr);
}
