196 lines
4.2 KiB
C++
196 lines
4.2 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 License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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/*
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* Gagan Saksena 02/02/98
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*
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*/
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#include <prtypes.h>
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#include <prinrval.h>
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#include <xp_core.h>
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#include <xpassert.h>
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#include <xp_str.h>
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#include "nsCacheManager.h"
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#include "nsCacheTrace.h"
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#include "nsCachePref.h"
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#include "nsCacheModule.h"
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#include "nsMemModule.h"
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#include "nsDiskModule.h"
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#include "nsCacheBkgThd.h"
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static nsCacheManager TheManager;
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nsCacheManager::nsCacheManager(): m_pFirstModule(0), m_bOffline(PR_FALSE)
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{
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Init();
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}
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nsCacheManager::~nsCacheManager()
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{
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if (m_pBkgThd)
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{
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m_pBkgThd->Stop();
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delete m_pBkgThd;
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}
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if (m_pFirstModule)
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delete m_pFirstModule;
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}
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nsCacheManager*
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nsCacheManager::GetInstance()
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{
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return &TheManager;
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}
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/* Caller must free returned char* */
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const char*
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nsCacheManager::Trace() const
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{
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char linebuffer[128];
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char* total;
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sprintf(linebuffer, "nsCacheManager: Modules = %d\n", Entries());
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total = new char[strlen(linebuffer) + 1];
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strcpy(total, linebuffer);
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return total;
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}
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PRInt32
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nsCacheManager::AddModule(nsCacheModule* pModule)
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{
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if (pModule)
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{
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if (m_pFirstModule)
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LastModule()->Next(pModule);
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else
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m_pFirstModule = pModule;
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return Entries()-1;
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}
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else
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return -1;
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}
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PRBool
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nsCacheManager::Contains(const char* i_url) const
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{
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if (m_pFirstModule)
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{
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nsCacheModule* pModule = m_pFirstModule;
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while (pModule)
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{
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if (pModule->Contains(i_url))
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{
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return PR_TRUE;
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}
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pModule = pModule->Next();
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}
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}
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return PR_FALSE;
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}
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nsCacheObject*
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nsCacheManager::GetObject(const char* i_url) const
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{
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if (m_pFirstModule)
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{
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nsCacheModule* pModule = m_pFirstModule;
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nsCacheObject* obj = 0;
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while (pModule)
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{
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obj = pModule->GetObject(i_url);
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if (obj)
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return obj;
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pModule = pModule->Next();
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}
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}
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return 0;
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}
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PRInt32
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nsCacheManager::Entries() const
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{
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if (m_pFirstModule)
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{
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PRInt32 count=1;
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nsCacheModule* pModule = m_pFirstModule;
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while (pModule = pModule->Next())
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{
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count++;
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}
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return count;
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}
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return 0;
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}
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nsCacheModule*
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nsCacheManager::GetModule(PRInt32 i_index) const
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{
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if ((i_index < 0) || (i_index >= Entries()))
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return 0;
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nsCacheModule* pModule = m_pFirstModule;
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PR_ASSERT(pModule);
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for (PRInt32 i=0; i<i_index; pModule = pModule->Next())
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{
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i++;
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PR_ASSERT(pModule);
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}
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return pModule;
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}
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void
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nsCacheManager::Init()
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{
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if (m_pFirstModule)
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delete m_pFirstModule;
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m_pFirstModule = new nsMemModule(nsCachePref::MemCacheSize());
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PR_ASSERT(m_pFirstModule);
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nsDiskModule* pTemp = new nsDiskModule(nsCachePref::DiskCacheSize());
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PR_ASSERT(pTemp);
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m_pFirstModule->Next(pTemp);
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m_pBkgThd = new nsCacheBkgThd(PR_SecondsToInterval(nsCachePref::BkgSleepTime()));
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PR_ASSERT(m_pBkgThd);
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}
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nsCacheModule*
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nsCacheManager::LastModule() const
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{
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if (m_pFirstModule)
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{
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nsCacheModule* pModule = m_pFirstModule;
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while(pModule->Next()) {
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pModule = pModule->Next();
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}
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return pModule;
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}
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return 0;
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}
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PRUint32
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nsCacheManager::WorstCaseTime(void) const
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{
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PRIntervalTime start = PR_IntervalNow();
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while (this->Contains("a vague string that should not be in any of the modules"));
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return PR_IntervalToMicroseconds(PR_IntervalNow() - start);
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} |