epicsEvent.h

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/*************************************************************************\
* Copyright (c) 2011 UChicago Argonne LLC, as Operator of Argonne
* National Laboratory.
* Copyright (c) 2002 The Regents of the University of California, as
* Operator of Los Alamos National Laboratory.
* SPDX-License-Identifier: EPICS
* EPICS BASE is distributed subject to a Software License Agreement found
* in file LICENSE that is included with this distribution.
\*************************************************************************/

#ifndef epicsEventh
#define epicsEventh

#include "libComAPI.h"

typedef struct epicsEventOSD *epicsEventId;

typedef enum {
 epicsEventOK = 0,
 epicsEventWaitTimeout,
 epicsEventError
} epicsEventStatus;

#define epicsEventWaitStatus epicsEventStatus

#define epicsEventWaitOK epicsEventOK

#define epicsEventWaitError epicsEventError

typedef enum {
 epicsEventEmpty,
 epicsEventFull
} epicsEventInitialState;

#ifdef __cplusplus

class LIBCOM_API epicsEvent {
public:
 epicsEvent ( epicsEventInitialState initial = epicsEventEmpty );
 ~epicsEvent ();
 void trigger ();
 void signal () { this->trigger(); }
 void wait ();
 bool wait ( double timeout );
 bool tryWait ();
 void show ( unsigned level ) const;

 class invalidSemaphore; /* exception payload */
private:
 epicsEvent ( const epicsEvent & );
 epicsEvent & operator = ( const epicsEvent & );
 epicsEventId id;
};

extern "C" {
#endif /*__cplusplus */

LIBCOM_API epicsEventId epicsEventCreate(
 epicsEventInitialState initialState);

LIBCOM_API epicsEventId epicsEventMustCreate (
 epicsEventInitialState initialState);

LIBCOM_API void epicsEventDestroy(epicsEventId id);

LIBCOM_API epicsEventStatus epicsEventTrigger(
 epicsEventId id);

LIBCOM_API void epicsEventMustTrigger(epicsEventId id);

#define epicsEventSignal(ID) epicsEventMustTrigger(ID)

LIBCOM_API epicsEventStatus epicsEventWait(
 epicsEventId id);

LIBCOM_API void epicsEventMustWait(epicsEventId id);

LIBCOM_API epicsEventStatus epicsEventWaitWithTimeout(
 epicsEventId id, double timeout);

LIBCOM_API epicsEventStatus epicsEventTryWait(
 epicsEventId id);

LIBCOM_API void epicsEventShow(
 epicsEventId id, unsigned int level);

#ifdef __cplusplus
}
#endif /*__cplusplus */

#include "osdEvent.h"

#endif /* epicsEventh */