168 lines
4.0 KiB
C++
168 lines
4.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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/*
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* nsCacheManager- The boss of cache architecture. Contains all "external"
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* functions for use by people who don't care/want to know the internals
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* of the cache architecture.
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*
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* - Gagan Saksena 09/15/98
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*
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* Design and original implementation by Gagan Saksena 02/02/98
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*
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*/
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#ifndef _CacheManager_H_
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#define _CacheManager_H_
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#if 0
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# include "nsISupports.h"
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#endif
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#include "prlog.h"
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#include "nsMonitorable.h"
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#include "nsCacheModule.h"
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#include "nsCacheObject.h"
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class nsMemModule;
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class nsDiskModule;
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class nsCachePref;
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class nsCacheBkgThd;
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class nsCacheManager : public nsMonitorable //: public nsISupports
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{
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public:
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//Reserved modules
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enum modules
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{
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MEM =0,
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DISK=1
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};
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nsCacheManager();
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~nsCacheManager();
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PRInt32 AddModule(nsCacheModule* i_cacheModule);
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// InsertModule
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PRBool Contains(const char* i_url) const;
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/* Number of modules in the cache manager */
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PRInt16 Entries() const;
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/* Singleton */
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static nsCacheManager* GetInstance();
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nsDiskModule* GetDiskModule() const;
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nsMemModule* GetMemModule() const;
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nsCacheModule* GetModule(PRInt16 i_index) const;
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nsCacheObject* GetObj(const char* i_url) const;
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nsCachePref* GetPrefs(void) const;
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// Initialize the cache manager. Constructor doesn't call this.
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// So you must specify this separately.
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void Init();
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void InfoAsHTML(char* o_Buffer) const;
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PRBool IsOffline(void) const;
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void Offline(PRBool bSet);
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PRBool Remove(const char* i_url);
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const char* Trace() const;
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/* Performance measure- microseconds */
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PRUint32 WorstCaseTime(void) const;
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protected:
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PRBool ContainsExactly(const char* i_url) const;
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nsCacheModule* LastModule() const;
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//PRBool Lock(void);
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//void Unlock(void);
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/*
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class MgrMonitor
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{
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public:
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MgrMonitor() { nsCacheManager::GetInstance()->Lock();}
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~MgrMonitor() { nsCacheManager::GetInstance()->Unlock();}
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};
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friend MgrMonitor;
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*/
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private:
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nsCacheBkgThd* m_pBkgThd;
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nsCacheModule* m_pFirstModule;
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PRMonitor* m_pMonitor;
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PRBool m_bOffline;
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nsCachePref* m_pPrefs;
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nsCacheManager(const nsCacheManager& cm);
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nsCacheManager& operator=(const nsCacheManager& cm);
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};
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inline
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nsDiskModule* nsCacheManager::GetDiskModule() const
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{
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PR_ASSERT(m_pFirstModule && m_pFirstModule->NextModule());
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return (m_pFirstModule) ? (nsDiskModule*) m_pFirstModule->NextModule() : NULL;
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}
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inline
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nsMemModule* nsCacheManager::GetMemModule() const
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{
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PR_ASSERT(m_pFirstModule);
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return (nsMemModule*) m_pFirstModule;
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}
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inline
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nsCachePref* nsCacheManager::GetPrefs(void) const
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{
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PR_ASSERT(m_pPrefs);
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return m_pPrefs;
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}
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inline
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PRBool nsCacheManager::IsOffline(void) const
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{
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return m_bOffline;
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}
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inline
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void nsCacheManager::Offline(PRBool i_bSet)
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{
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m_bOffline = i_bSet;
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}
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#endif
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