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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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#ifndef __RIPC_SESSION__
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#define __RIPC_SESSION__
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#include<e32std.h> //RSessionBase
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#include<e32def.h> //Varargs
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#include<sys/types.h>
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#include<sys/sem.h>
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struct msqid_ds;
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struct shmid_ds;
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class TChunk
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{
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public:
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TChunk(): iRef(0){}
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TChunk(TInt aShmID): iShmID(aShmID), iRef(0){}
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TInt iShmID;
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RChunk iChunk;
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TInt iRef;
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};
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//-----------------------------------------------------------------------
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//Class name: RIpcSession
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//Description: It represents the session to Ipc Server.
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//-----------------------------------------------------------------------
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class RIpcSession : public RSessionBase
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{
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public:
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RIpcSession():iIsConnected(EFalse)
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{iLock.CreateLocal();}
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//msgqueue functions
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int msgctl(int msqid, int cmd, struct msqid_ds *buf, int &aerrno);
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int msgget(key_t key, int msgflg, int& aerrno);
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ssize_t msgrcv(int msqid, void *msgp, size_t msgsz, long msgtyp, int msgflg, int& aerrno);
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int msgsnd(int msqid, const void *msgp, size_t msgsz, int msgflg, int& aerrno);
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//msgqueue functions
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int shmctl(int shmid, int cmd, struct shmid_ds *buf, int &aerrno);
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int shmget(key_t key, size_t size, int shmflg, int& aerrno);
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void *shmat(int shmid, const void *shmaddr, int shmflg, int& aerrno);
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int shmdt(const void *shmaddr, int& aerrno);
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//semqueue functions
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int semget(key_t key, int nsems, int semflags, int& aerrno);
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int semctl(int semid, int semnum, int cmd, union semun *arg, int& aerrno);
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int semop(int semid, struct sembuf *sops, size_t nsops, int& aerrno);
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RFastLock iLock;
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private:
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TInt AddToList(const TInt& aKey, const TInt& aErr, TAny*& aRetPtr);
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TInt OnDemandConnection();
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void Lock()
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{
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iLock.Wait();
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}
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void UnLock()
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{
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iLock.Signal();
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}
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private:
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TInt Connect();
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TInt iIsConnected;
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//todo put a lock around this list
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RArray<TChunk> iChunkList;
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};
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#endif //__RIPC_SESSION__
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