vm_event.h

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/*
//
//                  INTEL CORPORATION PROPRIETARY INFORMATION
//     This software is supplied under the terms of a license agreement or
//     nondisclosure agreement with Intel Corporation and may not be copied
//     or disclosed except in accordance with the terms of that agreement.
//       Copyright(c) 2003-2005 Intel Corporation. All Rights Reserved.
//
*/

#ifndef __VM_EVENT_H__
#define __VM_EVENT_H__

#include "vm_types.h"

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

/* Invalidate an event */
void vm_event_set_invalid(vm_event *event);

/* Verify if an event is valid */
int vm_event_is_valid(vm_event *event);

/* Init an event. Event is created unset. return 1 if success */
vm_status vm_event_init(vm_event *event, int manual, int state);

/* Set the event to either HIGH (>0) or LOW (0) state */
vm_status vm_event_signal(vm_event *event);
vm_status vm_event_reset(vm_event *event);

/* Pulse the event 0 -> 1 -> 0 */
vm_status vm_event_pulse(vm_event *event);

/* Wait for event to be high with blocking */
vm_status vm_event_wait(vm_event *event);

/* Wiat for event to be high without blocking, return 1 if signaled */
vm_status vm_event_timed_wait(vm_event *event, unsigned int msec);

/* Destory the event */
void vm_event_destroy(vm_event *event);

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* __VM_EVENT_H__ */