/** 

 *  @file MsgQInternal.h

 *  Description: Internal Header file for MsgQLib

 *  Copyright (c) 2007 Nokia Corporation.

*  All rights reserved.

*  Redistribution and use in source and binary forms, with or without modification, 

*  are permitted provided that the following conditions are met:

*  Redistributions of source code must retain the above copyright notice, this list 

*  of conditions and the following disclaimer.Redistributions in binary form must 

*  reproduce the above copyright notice, this list of conditions and the following 

*  disclaimer in the documentation and/or other materials provided with the distribution.

*  Neither the name of the Nokia Corporation nor the names of its contributors may be used 

*  to endorse or promote products derived from this software without specific prior written 

*  permission.

*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 

*  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 

*  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 

*  SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 

*  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 

*  OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 

*  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 

*  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 

*  EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/

#ifndef MSGQINTERNAL_H

#define MSGQINTERNAL_H

#include <msgqlib.h>

#ifdef __cplusplus

extern "C" {

#endif

/* data strucure used for maintaining message queues */

typedef struct MsgQInfo* MSGQ_INFO_PTR;

typedef struct MsgQInfo {

	MSGQ_INFO_PTR	 next;	      /* next entry in list                  */

	ULONG			 qName;       /* queue name                          */

	int				 qId;		  /* queue id                 			 */

	int				 semId ;      /* semaphore id           			 */

	ULONG			 sendState;	  /* message can be sent                 */

	ULONG			 numMsgs;     /* number of messages queued           */

	ULONG			 maxNumMsgs;  /* maximum number of messages queued   */

	struct msqid_ds* slMqInfo_p;  /* msg q info                  		 */

}MSGQ_INFO;

/* Linked List used for maintaining list of all message queues created */

typedef struct MsgQInfoList* MSGQ_INFO_LIST_PTR;

typedef struct MsgQInfoList {

	MSGQ_INFO_LIST_PTR next;     /* next entry in list */

	ULONG               qName;   /* queue name         */

} MSGQ_INFO_LIST;

/* Forward Declaration of Internal Functions */

int   InstallMsqQTable(ULONG qName, int qId, int semId, int* err);

void  AddToMsgQTable(ULONG qName);

int   RemoveFromMsqQTable(ULONG qName, int* err);

void  DeleteFromMsgQTable(ULONG qName);

MSGQ_INFO* MsgQTableLookup(ULONG qName);

#ifdef __cplusplus

}

#endif

#endif /* MSGQINTERNAL_H */