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oscl_dns.h

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// -*- c++ -*-
// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

//                     O S C L _ D N S

// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

#ifndef OSCL_DNS_H_INCLUDED
#define OSCL_DNS_H_INCLUDED

#ifndef OSCLCONFIG_IO_H_INCLUDED
#include "osclconfig_io.h"
#endif

#ifndef OSCL_SOCKET_TYPES_H_INCLUDED
#include "oscl_socket_types.h"
#endif

#ifndef OSCL_DEFALLOC_H_INCLUDED
#include "oscl_defalloc.h"
#endif

#ifndef OSCL_SOCKET_H_INCLUDED
#include "oscl_socket.h"
#endif

enum TPVDNSFxn
{
    EPVDNSGetHostByName
} ;

enum TPVDNSEvent
{
    EPVDNSSuccess
    , EPVDNSPending
    , EPVDNSTimeout
    , EPVDNSFailure
    , EPVDNSCancel
} ;

class OsclDNSObserver
{
    public:
        OSCL_IMPORT_REF virtual void HandleDNSEvent(int32 aId, TPVDNSFxn aFxn, TPVDNSEvent aEvent, int32 aError) = 0;

        virtual ~OsclDNSObserver() {}
};

class OsclGetHostByNameMethod;
class OsclDNSI;

class OsclDNS: public HeapBase
{
    public:
        OSCL_IMPORT_REF static OsclDNS* NewL(
            Oscl_DefAlloc &alloc,
            OsclSocketServ& aServ,
            OsclDNSObserver & aObserver,
            uint32 aId);

        OSCL_IMPORT_REF ~OsclDNS();

        OSCL_IMPORT_REF TPVDNSEvent GetHostByName(char *name, OsclNetworkAddress& addr,
                int32 aTimeoutMsec = -1);

        OSCL_IMPORT_REF void CancelGetHostByName();

    private:
        OsclDNS(
            Oscl_DefAlloc &alloc,
            OsclDNSObserver& obs,
            uint32 id);
        void ConstructL(OsclSocketServ &aServ);

        OsclGetHostByNameMethod* iGetHostByNameMethod;
        Oscl_DefAlloc& iAlloc;
        OsclDNSObserver& iObserver;
        uint32 iId;
        OsclDNSI *iDNS;
        friend class OsclDNSRequestAO;

};



#endif

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