src/backend/resourcemanager/include/communication/rmcomm_Message.h

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 RESOURCE_MAMANGER_INTER_PROCESS_COMMUNICATION_MESSAGE_H
#define RESOURCE_MAMANGER_INTER_PROCESS_COMMUNICATION_MESSAGE_H

#include "communication/rmcomm_AsyncComm.h"
#include "communication/rmcomm_MessageProtocol.h"

extern AsyncCommBufferHandlersData AsyncCommBufferHandlersMessage;

struct AsyncCommMessageHandlerContextData;
typedef struct AsyncCommMessageHandlerContextData  AsyncCommMessageHandlerContextData;
typedef struct AsyncCommMessageHandlerContextData *AsyncCommMessageHandlerContext;

typedef void ( * MessageRecvReadyHandlerType)(AsyncCommMessageHandlerContext);
typedef void ( * MessageRecvedHandlerType)(AsyncCommMessageHandlerContext,
									 uint16_t,
									 uint8_t,
									 uint8_t,
									 char *,
									 uint32_t);
typedef void ( * MessageSendReadyHandlerType)(AsyncCommMessageHandlerContext);
typedef void ( * MessageSentHandlerType)(AsyncCommMessageHandlerContext);
typedef void ( * MessageErrorHandlerType)(AsyncCommMessageHandlerContext);
typedef void ( * MessageCleanUpHandlerType)(AsyncCommMessageHandlerContext);

struct AsyncCommMessageHandlerContextData {
	AsyncCommBuffer   			AsyncBuffer;
	bool 			   			inMessage;
	MessageRecvReadyHandlerType MessageRecvReadyHandler;
	MessageRecvedHandlerType 	MessageRecvedHandler;
	MessageSendReadyHandlerType MessageSendReadyHandler;
	MessageSentHandlerType		MessageSentHandler;
	MessageErrorHandlerType 	MessageErrorHandler;
	MessageCleanUpHandlerType	MessageCleanUpHandler;
	void					   *UserData;
};

void InitHandler_Message(AsyncCommBuffer buffer);
void ReadReadyHandler_Message(AsyncCommBuffer buffer);
void ReadPostHandler_Message(AsyncCommBuffer buffer);
void WriteReadyHandler_Message(AsyncCommBuffer buffer);
void WritePostHandler_Message(AsyncCommBuffer buffer);
void ErrorHandler_Message(AsyncCommBuffer buffer);
void CleanUpHandler_Message(AsyncCommBuffer buffer);

/* The API for pushing content to CommBuffer for sending out. */
void buildMessageToCommBuffer(AsyncCommBuffer   buffer,
							  const char 	   *content,
							  int   	 		contentsize,
							  uint16_t 	 		messageid,
							  uint8_t    		mark1,
							  uint8_t    		mark2);

#endif /*RESOURCE_MAMANGER_INTER_PROCESS_COMMUNICATION_MESSAGE_H*/