/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef _nsCacheSession_h_

#define _nsCacheSession_h_

#include "nspr.h"

#include "nsError.h"

#include "nsCOMPtr.h"

#include "nsICacheSession.h"

#include "nsIFile.h"

#include "nsString.h"

class nsCacheSession : public nsICacheSession

{

    virtual ~nsCacheSession();

public:

    NS_DECL_ISUPPORTS

    NS_DECL_NSICACHESESSION

    nsCacheSession(const char * clientID, nsCacheStoragePolicy storagePolicy, bool streamBased);

    nsCString *           ClientID()      { return &mClientID; }

    enum SessionInfo {

        eStoragePolicyMask        = 0x000000FF,

        eStreamBasedMask          = 0x00000100,

        eDoomEntriesIfExpiredMask = 0x00001000,

        ePrivateMask              = 0x00010000

    };

    void   MarkStreamBased()  { mInfo |=  eStreamBasedMask; }

    void   ClearStreamBased() { mInfo &= ~eStreamBasedMask; }

    bool IsStreamBased()    { return (mInfo & eStreamBasedMask) != 0; }

    void   MarkDoomEntriesIfExpired()  { mInfo |=  eDoomEntriesIfExpiredMask; }

    void   ClearDoomEntriesIfExpired() { mInfo &= ~eDoomEntriesIfExpiredMask; }

    bool WillDoomEntriesIfExpired()  { return (0 != (mInfo & eDoomEntriesIfExpiredMask)); }

    void   MarkPrivate() { mInfo |= ePrivateMask; }

    void   MarkPublic() { mInfo &= ~ePrivateMask; }

    bool IsPrivate() { return (mInfo & ePrivateMask) != 0; }

    nsCacheStoragePolicy  StoragePolicy()

    {

        return (nsCacheStoragePolicy)(mInfo & eStoragePolicyMask);

    }

    void SetStoragePolicy(nsCacheStoragePolicy policy)

    {

        NS_ASSERTION(policy <= 0xFF, "too many bits in nsCacheStoragePolicy");

        mInfo &= ~eStoragePolicyMask; // clear storage policy bits

        mInfo |= policy;

    }

    nsIFile* ProfileDir() { return mProfileDir; }

private:

    nsCString               mClientID;

    uint32_t                mInfo;

    nsCOMPtr<nsIFile>       mProfileDir;

};

#endif // _nsCacheSession_h_