/**

 * FreeRDP: A Remote Desktop Protocol Implementation

 *

 * Copyright 2015 Jiang Zihao <zihao.jiang@yahoo.com>

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

#ifndef FREERDP_SERVER_SHADOW_MCEVENT_H

#define FREERDP_SERVER_SHADOW_MCEVENT_H

#include <freerdp/server/shadow.h>

#include <winpr/crt.h>

#include <winpr/synch.h>

#include <winpr/collections.h>

/*

 * This file implemented a model that an event is consumed 

 * by multiple clients. All clients should wait others before continue

 * Server should wait for all clients before continue

 */

struct rdp_shadow_multiclient_event

{

	HANDLE event; /* Kickoff event */

	HANDLE barrierEvent; /* Represents that all clients have consumed event */

	HANDLE doneEvent; /* Event handling finished. Server could continue */

	wArrayList* subscribers;

	CRITICAL_SECTION lock;

	int consuming;

	int waiting;

	/* For debug */

	int eventid;

};

#ifdef __cplusplus

extern "C" {

#endif

rdpShadowMultiClientEvent* shadow_multiclient_new();

void shadow_multiclient_free(rdpShadowMultiClientEvent* event);

void shadow_multiclient_publish(rdpShadowMultiClientEvent* event);

void shadow_multiclient_wait(rdpShadowMultiClientEvent* event);

void shadow_multiclient_publish_and_wait(rdpShadowMultiClientEvent* event);

void* shadow_multiclient_get_subscriber(rdpShadowMultiClientEvent* event);

void shadow_multiclient_release_subscriber(void* subscriber);

BOOL shadow_multiclient_consume(void* subscriber);

HANDLE shadow_multiclient_getevent(void* subscriber);

#ifdef __cplusplus

}

#endif

#endif /* FREERDP_SERVER_SHADOW_MCEVENT_H */