#ifndef EXEC_SEMAPHORES_H
#define EXEC_SEMAPHORES_H
/*
**      $Filename: exec/semaphores.h $
**      $Release: 2.04 Includes, V37.4 $
**      $Revision: 36.6 $
**      $Date: 90/05/10 $
**
**      Definitions for locking functions.
**
**      (C) Copyright 1986-1999 Amiga, Inc.
**          All Rights Reserved
*/

#ifndef EXEC_NODES_H
#include "exec/nodes.h"
#endif /* EXEC_NODES_H */

#ifndef EXEC_LISTS_H
#include "exec/lists.h"
#endif /* EXEC_LISTS_H */

#ifndef EXEC_PORTS_H
#include "exec/ports.h"
#endif /* EXEC_PORTS_H */

#ifndef EXEC_TASKS_H
#include "exec/tasks.h"
#endif /* EXEC_TASKS_H */


/****** SignalSemaphore *********************************************/

/* Private structure used by ObtainSemaphore() */
struct SemaphoreRequest {
    struct  MinNode sr_Link;
    struct  Task *sr_Waiter;
};

/* Signal Semaphore data structure */
struct SignalSemaphore {
    struct  Node ss_Link;
    WORD    ss_NestCount;
    struct  MinList ss_WaitQueue;
    struct  SemaphoreRequest ss_MultipleLink;
    struct  Task *ss_Owner;
    WORD    ss_QueueCount;
};



/****** Semaphore (Procure/Vacate type) *****************************/

struct Semaphore {
    struct MsgPort sm_MsgPort;
    WORD   sm_Bids;
};

#define sm_LockMsg      mp_SigTask


#endif  /* EXEC_SEMAPHORES_H */