1999-07-15 06:57:37 +04:00
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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1999-11-06 06:43:54 +03:00
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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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1999-07-15 06:57:37 +04:00
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*
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1999-11-06 06:43:54 +03:00
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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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1999-07-15 06:57:37 +04:00
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*
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1999-11-06 06:43:54 +03:00
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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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1999-07-15 06:57:37 +04:00
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* Communications Corporation. Portions created by Netscape are
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1999-11-06 06:43:54 +03:00
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* Copyright (C) 1999 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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1999-07-15 06:57:37 +04:00
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*/
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#include "msgCore.h"
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1999-08-24 08:41:05 +04:00
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#include "nsIMsgAccountManager.h"
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1999-07-15 06:57:37 +04:00
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#include "nsMsgFolderCacheElement.h"
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#include "nsMsgFolderCache.h"
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#include "nsMorkCID.h"
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#include "nsIMdbFactoryFactory.h"
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#include "nsFileStream.h"
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#include "nsXPIDLString.h"
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1999-08-24 08:41:05 +04:00
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#include "nsMsgBaseCID.h"
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1999-10-07 18:30:44 +04:00
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#include "nsIArena.h"
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1999-07-15 06:57:37 +04:00
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1999-11-06 04:22:28 +03:00
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static NS_DEFINE_CID(kMorkCID, NS_MORK_CID);
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1999-08-24 08:41:05 +04:00
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static NS_DEFINE_CID(kCMsgMailSessionCID, NS_MSGMAILSESSION_CID);
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1999-07-15 06:57:37 +04:00
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const char *kFoldersScope = "ns:msg:db:row:scope:folders:all"; // scope for all folders table
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const char *kFoldersTableKind = "ns:msg:db:table:kind:folders";
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1999-10-07 18:30:44 +04:00
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class FolderCachePool : public nsIMdbHeap { // caller-supplied memory management interface
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public:
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// { ===== begin nsIMdbHeap methods =====
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virtual mdb_err Alloc(nsIMdbEnv* ev, // allocate a piece of memory
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mdb_size inSize, // requested byte size of new memory block
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void** outBlock); // memory block of inSize bytes, or nil
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virtual mdb_err Free(nsIMdbEnv* ev, // free block from Alloc or Resize()
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void* ioBlock); // block to be destroyed/deallocated
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virtual mdb_err HeapAddStrongRef(nsIMdbEnv* ev);
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virtual mdb_err HeapCutStrongRef(nsIMdbEnv* ev);
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// } ===== end nsIMdbHeap methods =====
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nsresult Init();
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1999-11-06 04:22:28 +03:00
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virtual ~FolderCachePool() {};
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1999-10-07 18:30:44 +04:00
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protected:
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nsCOMPtr <nsIArena> m_arena;
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};
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1999-07-15 06:57:37 +04:00
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nsMsgFolderCache::nsMsgFolderCache()
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{
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m_mdbEnv = nsnull;
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m_mdbStore = nsnull;
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1999-07-17 06:26:24 +04:00
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NS_INIT_REFCNT();
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1999-07-15 06:57:37 +04:00
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m_mdbAllFoldersTable = nsnull;
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1999-10-07 18:30:44 +04:00
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m_morkEnvMemPool = new FolderCachePool;
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if (m_morkEnvMemPool)
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m_morkEnvMemPool->Init();
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1999-07-15 06:57:37 +04:00
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}
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// should this, could this be an nsCOMPtr ?
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static nsIMdbFactory *gMDBFactory = nsnull;
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nsMsgFolderCache::~nsMsgFolderCache()
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{
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1999-09-30 05:43:36 +04:00
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NS_RELEASE(m_cacheElements);
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1999-08-01 21:04:48 +04:00
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if (m_mdbStore)
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m_mdbStore->Release();
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1999-07-17 06:26:24 +04:00
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if (gMDBFactory)
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1999-10-07 18:30:44 +04:00
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{
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1999-10-19 01:16:23 +04:00
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gMDBFactory->CloseMdbObject(m_mdbEnv);
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// gMDBFactory->CutStrongRef(GetEnv());
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1999-10-07 18:30:44 +04:00
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}
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1999-07-15 06:57:37 +04:00
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gMDBFactory = nsnull;
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1999-07-17 06:26:24 +04:00
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if (m_mdbEnv)
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1999-10-07 18:30:44 +04:00
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{
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m_mdbEnv->CloseMdbObject(m_mdbEnv);
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// m_mdbEnv->CutStrongRef(m_mdbEnv); //??? is this right?
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}
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delete m_morkEnvMemPool;
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1999-07-15 06:57:37 +04:00
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}
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1999-08-24 08:41:05 +04:00
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NS_IMPL_ADDREF(nsMsgFolderCache)
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NS_IMPL_RELEASE(nsMsgFolderCache)
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nsresult
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nsMsgFolderCache::QueryInterface(const nsIID& iid, void **result)
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{
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nsresult rv = NS_NOINTERFACE;
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if (! result)
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return NS_ERROR_NULL_POINTER;
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void *res = nsnull;
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if (iid.Equals(nsCOMTypeInfo<nsIMsgFolderCache>::GetIID()) ||
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iid.Equals(nsCOMTypeInfo<nsISupports>::GetIID()))
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res = NS_STATIC_CAST(nsIMsgFolderCache*, this);
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if (res)
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{
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NS_ADDREF(this);
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*result = res;
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rv = NS_OK;
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}
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return rv;
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}
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1999-07-15 06:57:37 +04:00
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/* static */ nsIMdbFactory *nsMsgFolderCache::GetMDBFactory()
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{
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if (!gMDBFactory)
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{
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nsresult rv;
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1999-10-07 18:30:44 +04:00
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nsCOMPtr <nsIMdbFactoryFactory> factoryfactory;
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rv = nsComponentManager::CreateInstance(kMorkCID,
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nsnull,
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NS_GET_IID(nsIMdbFactoryFactory),
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(void **) getter_AddRefs(factoryfactory));
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if (NS_SUCCEEDED(rv) && factoryfactory)
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rv = factoryfactory->GetMdbFactory(&gMDBFactory);
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1999-07-15 06:57:37 +04:00
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}
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return gMDBFactory;
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}
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// initialize the various tokens and tables in our db's env
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nsresult nsMsgFolderCache::InitMDBInfo()
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{
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nsresult err = NS_OK;
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if (GetStore())
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{
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err = GetStore()->StringToToken(GetEnv(), kFoldersScope, &m_folderRowScopeToken);
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if (err == NS_OK)
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{
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err = GetStore()->StringToToken(GetEnv(), kFoldersTableKind, &m_folderTableKindToken);
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if (err == NS_OK)
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{
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// The table of all message hdrs will have table id 1.
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m_allFoldersTableOID.mOid_Scope = m_folderRowScopeToken;
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m_allFoldersTableOID.mOid_Id = 1;
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}
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}
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}
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return err;
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}
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// set up empty tables, dbFolderInfo, etc.
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nsresult nsMsgFolderCache::InitNewDB()
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{
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nsresult err = NS_OK;
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err = InitMDBInfo();
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if (err == NS_OK)
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{
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nsIMdbStore *store = GetStore();
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// create the unique table for the dbFolderInfo.
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mdb_err mdberr;
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mdberr = (nsresult) store->NewTable(GetEnv(), m_folderRowScopeToken,
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m_folderTableKindToken, PR_FALSE, nsnull, &m_mdbAllFoldersTable);
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}
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return err;
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}
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nsresult nsMsgFolderCache::InitExistingDB()
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{
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nsresult err = NS_OK;
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err = InitMDBInfo();
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if (err == NS_OK)
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{
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err = GetStore()->GetTable(GetEnv(), &m_allFoldersTableOID, &m_mdbAllFoldersTable);
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1999-07-15 20:49:05 +04:00
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if (NS_SUCCEEDED(err) && m_mdbAllFoldersTable)
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{
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nsIMdbTableRowCursor* rowCursor = nsnull;
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err = m_mdbAllFoldersTable->GetTableRowCursor(GetEnv(), -1, &rowCursor);
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if (NS_SUCCEEDED(err) && rowCursor)
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{
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// iterate over the table rows and create nsMsgFolderCacheElements for each.
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1999-09-08 07:09:39 +04:00
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while (PR_TRUE)
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1999-07-15 20:49:05 +04:00
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{
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nsresult rv;
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nsIMdbRow* hdrRow;
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mdb_pos rowPos;
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rv = rowCursor->NextRow(GetEnv(), &hdrRow, &rowPos);
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if (NS_FAILED(rv) || !hdrRow)
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break;
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1999-07-16 06:25:24 +04:00
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rv = AddCacheElement(nsnull, hdrRow, nsnull);
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1999-07-15 20:49:05 +04:00
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// rv = mDB->CreateMsgHdr(hdrRow, key, &mResultHdr);
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if (NS_FAILED(rv))
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return rv;
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}
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1999-08-01 21:04:48 +04:00
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rowCursor->Release();
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1999-07-15 20:49:05 +04:00
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}
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}
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1999-07-15 06:57:37 +04:00
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}
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return err;
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}
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1999-10-07 18:30:44 +04:00
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mdb_err FolderCachePool::Alloc(nsIMdbEnv* ev, // allocate a piece of memory
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mdb_size inSize, // requested byte size of new memory block
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void** outBlock)
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{
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*outBlock = m_arena->Alloc(inSize);
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return (*outBlock) ? 0 : (mdb_err) -1;
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}
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mdb_err FolderCachePool::Free(nsIMdbEnv* ev, // free block from Alloc or Resize()
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void* ioBlock) // block to be destroyed/deallocated
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{
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return 0;
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}
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mdb_err FolderCachePool::HeapAddStrongRef(nsIMdbEnv* ev)
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{
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return 0;
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}
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mdb_err FolderCachePool::HeapCutStrongRef(nsIMdbEnv* ev)
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{
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return 0;
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}
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nsresult FolderCachePool::Init()
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{
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return NS_NewHeapArena(getter_AddRefs(m_arena), 1024);
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}
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1999-09-22 10:23:16 +04:00
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nsresult nsMsgFolderCache::OpenMDB(const char *dbName, PRBool exists)
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1999-07-15 06:57:37 +04:00
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{
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1999-09-20 10:50:21 +04:00
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nsresult ret=NS_OK;
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1999-07-15 06:57:37 +04:00
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nsIMdbFactory *myMDBFactory = GetMDBFactory();
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if (myMDBFactory)
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{
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1999-10-07 18:30:44 +04:00
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ret = myMDBFactory->MakeEnv(m_morkEnvMemPool, &m_mdbEnv);
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1999-07-15 06:57:37 +04:00
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if (NS_SUCCEEDED(ret))
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{
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nsIMdbThumb *thumb = nsnull;
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char *nativeFileName = nsCRT::strdup(dbName);
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1999-09-04 02:27:25 +04:00
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nsIMdbHeap* dbHeap = 0;;
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mdb_bool dbFrozen = mdbBool_kFalse; // not readonly, we want modifiable
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1999-07-15 06:57:37 +04:00
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if (!nativeFileName)
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return NS_ERROR_OUT_OF_MEMORY;
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if (m_mdbEnv)
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m_mdbEnv->SetAutoClear(PR_TRUE);
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#if defined(XP_PC) || defined(XP_MAC)
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// UnixToNative(nativeFileName);
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#endif
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1999-09-22 10:23:16 +04:00
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if (exists)
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1999-07-15 06:57:37 +04:00
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{
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mdbOpenPolicy inOpenPolicy;
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mdb_bool canOpen;
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mdbYarn outFormatVersion;
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1999-09-04 02:27:25 +04:00
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nsIMdbFile* oldFile = 0;
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ret = myMDBFactory->OpenOldFile(m_mdbEnv, dbHeap, nativeFileName,
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dbFrozen, &oldFile);
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if ( oldFile )
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1999-07-15 06:57:37 +04:00
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{
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1999-09-04 02:27:25 +04:00
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if ( ret == NS_OK )
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1999-07-15 06:57:37 +04:00
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{
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1999-09-04 02:27:25 +04:00
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ret = myMDBFactory->CanOpenFilePort(m_mdbEnv, oldFile, // file to investigate
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&canOpen, &outFormatVersion);
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if (ret == 0 && canOpen)
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{
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inOpenPolicy.mOpenPolicy_ScopePlan.mScopeStringSet_Count = 0;
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inOpenPolicy.mOpenPolicy_MinMemory = 0;
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inOpenPolicy.mOpenPolicy_MaxLazy = 0;
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ret = myMDBFactory->OpenFileStore(m_mdbEnv, NULL, oldFile, &inOpenPolicy,
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&thumb);
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}
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else
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ret = NS_MSG_ERROR_FOLDER_SUMMARY_OUT_OF_DATE;
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1999-07-15 06:57:37 +04:00
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}
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1999-09-04 02:27:25 +04:00
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oldFile->CutStrongRef(m_mdbEnv); // always release our file ref, store has own
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1999-07-15 06:57:37 +04:00
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}
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}
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if (NS_SUCCEEDED(ret) && thumb)
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{
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mdb_count outTotal; // total somethings to do in operation
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mdb_count outCurrent; // subportion of total completed so far
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mdb_bool outDone = PR_FALSE; // is operation finished?
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mdb_bool outBroken; // is operation irreparably dead and broken?
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do
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{
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ret = thumb->DoMore(m_mdbEnv, &outTotal, &outCurrent, &outDone, &outBroken);
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if (ret != 0)
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{// mork isn't really doing NS erorrs yet.
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outDone = PR_TRUE;
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break;
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}
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}
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while (NS_SUCCEEDED(ret) && !outBroken && !outDone);
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// m_mdbEnv->ClearErrors(); // ### temporary...
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if (NS_SUCCEEDED(ret) && outDone)
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{
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ret = myMDBFactory->ThumbToOpenStore(m_mdbEnv, thumb, &m_mdbStore);
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if (ret == NS_OK && m_mdbStore)
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ret = InitExistingDB();
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}
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#ifdef DEBUG_bienvenu1
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DumpContents();
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#endif
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}
|
1999-09-22 10:23:16 +04:00
|
|
|
else // ### need error code saying why open file store failed
|
1999-07-15 06:57:37 +04:00
|
|
|
{
|
1999-09-04 02:27:25 +04:00
|
|
|
nsIMdbFile* newFile = 0;
|
|
|
|
ret = myMDBFactory->CreateNewFile(m_mdbEnv, dbHeap, dbName, &newFile);
|
|
|
|
if ( newFile )
|
|
|
|
{
|
|
|
|
if (ret == NS_OK)
|
|
|
|
{
|
|
|
|
mdbOpenPolicy inOpenPolicy;
|
|
|
|
|
|
|
|
inOpenPolicy.mOpenPolicy_ScopePlan.mScopeStringSet_Count = 0;
|
|
|
|
inOpenPolicy.mOpenPolicy_MinMemory = 0;
|
|
|
|
inOpenPolicy.mOpenPolicy_MaxLazy = 0;
|
|
|
|
|
|
|
|
ret = myMDBFactory->CreateNewFileStore(m_mdbEnv, dbHeap,
|
|
|
|
newFile, &inOpenPolicy, &m_mdbStore);
|
|
|
|
if (ret == NS_OK)
|
|
|
|
ret = InitNewDB();
|
|
|
|
}
|
|
|
|
newFile->CutStrongRef(m_mdbEnv); // always release our file ref, store has own
|
|
|
|
}
|
|
|
|
|
1999-07-15 06:57:37 +04:00
|
|
|
}
|
|
|
|
if(thumb)
|
|
|
|
{
|
|
|
|
thumb->CutStrongRef(m_mdbEnv);
|
|
|
|
}
|
|
|
|
nsCRT::free(nativeFileName);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP nsMsgFolderCache::Init(nsIFileSpec *dbFileSpec)
|
|
|
|
{
|
|
|
|
if (!dbFileSpec)
|
|
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
|
1999-07-17 07:26:24 +04:00
|
|
|
nsresult rv = NS_NewISupportsArray(&m_cacheElements);
|
1999-07-15 06:57:37 +04:00
|
|
|
|
1999-07-17 07:26:24 +04:00
|
|
|
if (NS_SUCCEEDED(rv) && m_cacheElements)
|
1999-07-15 06:57:37 +04:00
|
|
|
{
|
|
|
|
rv = dbFileSpec->GetFileSpec(&m_dbFileSpec);
|
|
|
|
|
|
|
|
if (NS_SUCCEEDED(rv))
|
|
|
|
{
|
1999-09-22 10:23:16 +04:00
|
|
|
PRBool exists = m_dbFileSpec.Exists();
|
1999-07-17 06:26:24 +04:00
|
|
|
// ### evil cast until MDB supports file streams.
|
1999-09-22 10:23:16 +04:00
|
|
|
rv = OpenMDB((const char *) m_dbFileSpec, exists);
|
1999-07-15 06:57:37 +04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
|
|
|
|
typedef struct _findCacheElementByURIEntry {
|
|
|
|
const char *m_uri;
|
|
|
|
nsIMsgFolderCacheElement *m_cacheElement;
|
|
|
|
} findCacheElementByURIEntry;
|
|
|
|
|
1999-07-17 06:26:24 +04:00
|
|
|
NS_IMETHODIMP nsMsgFolderCache::GetCacheElement(const char *uri, PRBool createIfMissing,
|
1999-07-15 06:57:37 +04:00
|
|
|
nsIMsgFolderCacheElement **result)
|
|
|
|
{
|
|
|
|
if (!result || !uri)
|
|
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
|
|
|
|
findCacheElementByURIEntry findEntry;
|
|
|
|
findEntry.m_uri = uri;
|
|
|
|
findEntry.m_cacheElement = nsnull;
|
|
|
|
|
|
|
|
m_cacheElements->EnumerateForwards(FindCacheElementByURI, (void *)&findEntry);
|
|
|
|
|
|
|
|
if (findEntry.m_cacheElement)
|
|
|
|
{
|
|
|
|
*result = findEntry.m_cacheElement;
|
|
|
|
NS_ADDREF(*result);
|
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
else if (createIfMissing)
|
|
|
|
{
|
1999-07-15 20:49:05 +04:00
|
|
|
nsIMdbRow* hdrRow;
|
|
|
|
|
|
|
|
if (GetStore())
|
1999-07-15 06:57:37 +04:00
|
|
|
{
|
1999-07-15 20:49:05 +04:00
|
|
|
mdb_err err = GetStore()->NewRow(GetEnv(), m_folderRowScopeToken, // row scope for row ids
|
|
|
|
&hdrRow);
|
|
|
|
if (NS_SUCCEEDED(err) && hdrRow)
|
|
|
|
{
|
|
|
|
m_mdbAllFoldersTable->AddRow(GetEnv(), hdrRow);
|
1999-07-16 06:25:24 +04:00
|
|
|
nsresult ret = AddCacheElement(uri, hdrRow, result);
|
1999-07-15 20:49:05 +04:00
|
|
|
if (*result)
|
|
|
|
(*result)->SetStringProperty("uri", uri);
|
|
|
|
return ret;
|
|
|
|
}
|
1999-07-15 06:57:37 +04:00
|
|
|
}
|
|
|
|
}
|
1999-08-24 08:41:05 +04:00
|
|
|
return NS_ERROR_FAILURE;
|
1999-07-15 06:57:37 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP nsMsgFolderCache::Close()
|
|
|
|
{
|
1999-09-20 10:50:21 +04:00
|
|
|
nsresult ret=NS_OK;
|
1999-07-17 06:26:24 +04:00
|
|
|
|
|
|
|
nsIMdbThumb *commitThumb = NULL;
|
|
|
|
if (m_mdbStore)
|
|
|
|
ret = m_mdbStore->CompressCommit(GetEnv(), &commitThumb);
|
|
|
|
|
|
|
|
if (commitThumb)
|
|
|
|
{
|
|
|
|
mdb_count outTotal = 0; // total somethings to do in operation
|
|
|
|
mdb_count outCurrent = 0; // subportion of total completed so far
|
|
|
|
mdb_bool outDone = PR_FALSE; // is operation finished?
|
|
|
|
mdb_bool outBroken = PR_FALSE; // is operation irreparably dead and broken?
|
|
|
|
while (!outDone && !outBroken && ret == NS_OK)
|
|
|
|
{
|
|
|
|
ret = commitThumb->DoMore(GetEnv(), &outTotal, &outCurrent, &outDone, &outBroken);
|
|
|
|
}
|
1999-07-21 21:49:01 +04:00
|
|
|
if(commitThumb)
|
|
|
|
commitThumb->CutStrongRef(m_mdbEnv);
|
1999-07-17 06:26:24 +04:00
|
|
|
}
|
|
|
|
// ### do something with error, but clear it now because mork errors out on commits.
|
|
|
|
if (GetEnv())
|
|
|
|
GetEnv()->ClearErrors();
|
|
|
|
return ret;
|
1999-07-15 06:57:37 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
PRBool
|
|
|
|
nsMsgFolderCache::FindCacheElementByURI(nsISupports *aElement, void *data)
|
|
|
|
{
|
1999-07-15 20:49:05 +04:00
|
|
|
nsresult rv;
|
|
|
|
nsCOMPtr<nsIMsgFolderCacheElement> cacheElement = do_QueryInterface(aElement, &rv);
|
1999-07-17 07:26:24 +04:00
|
|
|
if (NS_FAILED(rv))
|
|
|
|
return PR_TRUE;
|
1999-07-15 06:57:37 +04:00
|
|
|
|
1999-07-15 20:49:05 +04:00
|
|
|
findCacheElementByURIEntry *entry = (findCacheElementByURIEntry *) data;
|
1999-07-15 06:57:37 +04:00
|
|
|
|
1999-07-15 20:49:05 +04:00
|
|
|
nsXPIDLCString key;
|
|
|
|
rv = cacheElement->GetURI(getter_Copies(key));
|
|
|
|
if (NS_FAILED(rv))
|
|
|
|
return rv;
|
1999-07-15 06:57:37 +04:00
|
|
|
|
1999-07-15 20:49:05 +04:00
|
|
|
if (entry && entry->m_uri && !PL_strcmp(key, entry->m_uri ))
|
|
|
|
{
|
|
|
|
entry->m_cacheElement = cacheElement;
|
1999-09-30 05:43:36 +04:00
|
|
|
// caller will addref!
|
|
|
|
// NS_ADDREF(entry->m_cacheElement);
|
1999-07-15 20:49:05 +04:00
|
|
|
return PR_FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
return PR_TRUE;
|
|
|
|
}
|
|
|
|
|
1999-07-16 06:25:24 +04:00
|
|
|
nsresult nsMsgFolderCache::AddCacheElement(const char *uri, nsIMdbRow *row, nsIMsgFolderCacheElement **result)
|
1999-07-15 20:49:05 +04:00
|
|
|
{
|
|
|
|
nsMsgFolderCacheElement *cacheElement = new nsMsgFolderCacheElement;
|
|
|
|
|
|
|
|
if (cacheElement)
|
|
|
|
{
|
1999-07-16 06:25:24 +04:00
|
|
|
cacheElement->SetMDBRow(row);
|
1999-07-17 07:26:24 +04:00
|
|
|
cacheElement->SetOwningCache(this);
|
1999-07-16 06:25:24 +04:00
|
|
|
// if caller didn't pass in URI, try to get it from row.
|
|
|
|
if (!uri)
|
|
|
|
{
|
|
|
|
char *existingURI = nsnull;
|
|
|
|
cacheElement->GetStringProperty("uri", &existingURI);
|
|
|
|
cacheElement->SetURI(existingURI);
|
|
|
|
PR_Free(existingURI);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
cacheElement->SetURI((char *) uri);
|
1999-07-15 20:49:05 +04:00
|
|
|
nsCOMPtr<nsISupports> supports(do_QueryInterface(cacheElement));
|
|
|
|
if(supports)
|
|
|
|
m_cacheElements->AppendElement(supports);
|
|
|
|
if (result)
|
1999-07-17 07:26:24 +04:00
|
|
|
{
|
1999-07-15 20:49:05 +04:00
|
|
|
*result = cacheElement;
|
1999-07-17 07:26:24 +04:00
|
|
|
NS_ADDREF(*result);
|
|
|
|
}
|
1999-07-15 20:49:05 +04:00
|
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
1999-07-15 06:57:37 +04:00
|
|
|
}
|
1999-07-16 06:25:24 +04:00
|
|
|
|
|
|
|
nsresult nsMsgFolderCache::RowCellColumnToCharPtr(nsIMdbRow *hdrRow, mdb_token columnToken, char **resultPtr)
|
|
|
|
{
|
|
|
|
nsresult err = NS_OK;
|
|
|
|
nsIMdbCell *hdrCell;
|
|
|
|
|
|
|
|
if (hdrRow) // ### probably should be an error if hdrRow is NULL...
|
|
|
|
{
|
|
|
|
err = hdrRow->GetCell(GetEnv(), columnToken, &hdrCell);
|
|
|
|
if (err == NS_OK && hdrCell)
|
|
|
|
{
|
|
|
|
struct mdbYarn yarn;
|
|
|
|
hdrCell->AliasYarn(GetEnv(), &yarn);
|
|
|
|
char *result = (char *) PR_Malloc(yarn.mYarn_Fill + 1);
|
|
|
|
if (result)
|
|
|
|
{
|
|
|
|
nsCRT::memcpy(result, yarn.mYarn_Buf, yarn.mYarn_Fill);
|
|
|
|
result[yarn.mYarn_Fill] = '\0';
|
|
|
|
}
|
|
|
|
else
|
|
|
|
err = NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
|
|
|
|
*resultPtr = result;
|
|
|
|
hdrCell->CutStrongRef(GetEnv()); // always release ref
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return err;
|
|
|
|
}
|