[VerusCoin.git] / src / walletdb.cpp

// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2012 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#include "walletdb.h"
#include "wallet.h"
#include <boost/filesystem.hpp>

using namespace std;
using namespace boost;


static uint64 nAccountingEntryNumber = 0;

//
// CWalletDB
//

bool CWalletDB::WriteName(const string& strAddress, const string& strName)
{
    nWalletDBUpdated++;
    return Write(make_pair(string("name"), strAddress), strName);
}

bool CWalletDB::EraseName(const string& strAddress)
{
    // This should only be used for sending addresses, never for receiving addresses,
    // receiving addresses must always have an address book entry if they're not change return.
    nWalletDBUpdated++;
    return Erase(make_pair(string("name"), strAddress));
}

bool CWalletDB::ReadAccount(const string& strAccount, CAccount& account)
{
    account.SetNull();
    return Read(make_pair(string("acc"), strAccount), account);
}

bool CWalletDB::WriteAccount(const string& strAccount, const CAccount& account)
{
    return Write(make_pair(string("acc"), strAccount), account);
}

bool CWalletDB::WriteAccountingEntry(const CAccountingEntry& acentry)
{
    return Write(boost::make_tuple(string("acentry"), acentry.strAccount, ++nAccountingEntryNumber), acentry);
}

int64 CWalletDB::GetAccountCreditDebit(const string& strAccount)
{
    list<CAccountingEntry> entries;
    ListAccountCreditDebit(strAccount, entries);

    int64 nCreditDebit = 0;
    BOOST_FOREACH (const CAccountingEntry& entry, entries)
        nCreditDebit += entry.nCreditDebit;

    return nCreditDebit;
}

void CWalletDB::ListAccountCreditDebit(const string& strAccount, list<CAccountingEntry>& entries)
{
    bool fAllAccounts = (strAccount == "*");

    Dbc* pcursor = GetCursor();
    if (!pcursor)
        throw runtime_error("CWalletDB::ListAccountCreditDebit() : cannot create DB cursor");
    unsigned int fFlags = DB_SET_RANGE;
    loop
    {
        // Read next record
        CDataStream ssKey(SER_DISK, CLIENT_VERSION);
        if (fFlags == DB_SET_RANGE)
            ssKey << boost::make_tuple(string("acentry"), (fAllAccounts? string("") : strAccount), uint64(0));
        CDataStream ssValue(SER_DISK, CLIENT_VERSION);
        int ret = ReadAtCursor(pcursor, ssKey, ssValue, fFlags);
        fFlags = DB_NEXT;
        if (ret == DB_NOTFOUND)
            break;
        else if (ret != 0)
        {
            pcursor->close();
            throw runtime_error("CWalletDB::ListAccountCreditDebit() : error scanning DB");
        }

        // Unserialize
        string strType;
        ssKey >> strType;
        if (strType != "acentry")
            break;
        CAccountingEntry acentry;
        ssKey >> acentry.strAccount;
        if (!fAllAccounts && acentry.strAccount != strAccount)
            break;

        ssValue >> acentry;
        entries.push_back(acentry);
    }

    pcursor->close();
}


int CWalletDB::LoadWallet(CWallet* pwallet)
{
    pwallet->vchDefaultKey.clear();
    int nFileVersion = 0;
    vector<uint256> vWalletUpgrade;
    bool fIsEncrypted = false;

    //// todo: shouldn't we catch exceptions and try to recover and continue?
    {
        LOCK(pwallet->cs_wallet);
        int nMinVersion = 0;
        if (Read((string)"minversion", nMinVersion))
        {
            if (nMinVersion > CLIENT_VERSION)
                return DB_TOO_NEW;
            pwallet->LoadMinVersion(nMinVersion);
        }

        // Get cursor
        Dbc* pcursor = GetCursor();
        if (!pcursor)
        {
            printf("Error getting wallet database cursor\n");
            return DB_CORRUPT;
        }

        loop
        {
            // Read next record
            CDataStream ssKey(SER_DISK, CLIENT_VERSION);
            CDataStream ssValue(SER_DISK, CLIENT_VERSION);
            int ret = ReadAtCursor(pcursor, ssKey, ssValue);
            if (ret == DB_NOTFOUND)
                break;
            else if (ret != 0)
            {
                printf("Error reading next record from wallet database\n");
                return DB_CORRUPT;
            }

            // Unserialize
            // Taking advantage of the fact that pair serialization
            // is just the two items serialized one after the other
            string strType;
            ssKey >> strType;
            if (strType == "name")
            {
                string strAddress;
                ssKey >> strAddress;
                ssValue >> pwallet->mapAddressBook[strAddress];
            }
            else if (strType == "tx")
            {
                uint256 hash;
                ssKey >> hash;
                CWalletTx& wtx = pwallet->mapWallet[hash];
                ssValue >> wtx;
                wtx.BindWallet(pwallet);

                if (wtx.GetHash() != hash)
                    printf("Error in wallet.dat, hash mismatch\n");

                // Undo serialize changes in 31600
                if (31404 <= wtx.fTimeReceivedIsTxTime && wtx.fTimeReceivedIsTxTime <= 31703)
                {
                    if (!ssValue.empty())
                    {
                        char fTmp;
                        char fUnused;
                        ssValue >> fTmp >> fUnused >> wtx.strFromAccount;
                        printf("LoadWallet() upgrading tx ver=%d %d '%s' %s\n", wtx.fTimeReceivedIsTxTime, fTmp, wtx.strFromAccount.c_str(), hash.ToString().c_str());
                        wtx.fTimeReceivedIsTxTime = fTmp;
                    }
                    else
                    {
                        printf("LoadWallet() repairing tx ver=%d %s\n", wtx.fTimeReceivedIsTxTime, hash.ToString().c_str());
                        wtx.fTimeReceivedIsTxTime = 0;
                    }
                    vWalletUpgrade.push_back(hash);
                }

                //// debug print
                //printf("LoadWallet  %s\n", wtx.GetHash().ToString().c_str());
                //printf(" %12"PRI64d"  %s  %s  %s\n",
                //    wtx.vout[0].nValue,
                //    DateTimeStrFormat("%x %H:%M:%S", wtx.GetBlockTime()).c_str(),
                //    wtx.hashBlock.ToString().substr(0,20).c_str(),
                //    wtx.mapValue["message"].c_str());
            }
            else if (strType == "acentry")
            {
                string strAccount;
                ssKey >> strAccount;
                uint64 nNumber;
                ssKey >> nNumber;
                if (nNumber > nAccountingEntryNumber)
                    nAccountingEntryNumber = nNumber;
            }
            else if (strType == "key" || strType == "wkey")
            {
                vector<unsigned char> vchPubKey;
                ssKey >> vchPubKey;
                CKey key;
                if (strType == "key")
                {
                    CPrivKey pkey;
                    ssValue >> pkey;
                    key.SetPubKey(vchPubKey);
                    key.SetPrivKey(pkey);
                    if (key.GetPubKey() != vchPubKey)
                    {
                        printf("Error reading wallet database: CPrivKey pubkey inconsistency\n");
                        return DB_CORRUPT;
                    }
                    if (!key.IsValid())
                    {
                        printf("Error reading wallet database: invalid CPrivKey\n");
                        return DB_CORRUPT;
                    }
                }
                else
                {
                    CWalletKey wkey;
                    ssValue >> wkey;
                    key.SetPubKey(vchPubKey);
                    key.SetPrivKey(wkey.vchPrivKey);
                    if (key.GetPubKey() != vchPubKey)
                    {
                        printf("Error reading wallet database: CWalletKey pubkey inconsistency\n");
                        return DB_CORRUPT;
                    }
                    if (!key.IsValid())
                    {
                        printf("Error reading wallet database: invalid CWalletKey\n");
                        return DB_CORRUPT;
                    }
                }
                if (!pwallet->LoadKey(key))
                {
                    printf("Error reading wallet database: LoadKey failed\n");
                    return DB_CORRUPT;
                }
            }
            else if (strType == "mkey")
            {
                unsigned int nID;
                ssKey >> nID;
                CMasterKey kMasterKey;
                ssValue >> kMasterKey;
                if(pwallet->mapMasterKeys.count(nID) != 0)
                {
                    printf("Error reading wallet database: duplicate CMasterKey id %u\n", nID);
                    return DB_CORRUPT;
                }
                pwallet->mapMasterKeys[nID] = kMasterKey;
                if (pwallet->nMasterKeyMaxID < nID)
                    pwallet->nMasterKeyMaxID = nID;
            }
            else if (strType == "ckey")
            {
                vector<unsigned char> vchPubKey;
                ssKey >> vchPubKey;
                vector<unsigned char> vchPrivKey;
                ssValue >> vchPrivKey;
                if (!pwallet->LoadCryptedKey(vchPubKey, vchPrivKey))
                {
                    printf("Error reading wallet database: LoadCryptedKey failed\n");
                    return DB_CORRUPT;
                }
                fIsEncrypted = true;
            }
            else if (strType == "defaultkey")
            {
                ssValue >> pwallet->vchDefaultKey;
            }
            else if (strType == "pool")
            {
                int64 nIndex;
                ssKey >> nIndex;
                pwallet->setKeyPool.insert(nIndex);
            }
            else if (strType == "version")
            {
                ssValue >> nFileVersion;
                if (nFileVersion == 10300)
                    nFileVersion = 300;
            }
            else if (strType == "cscript")
            {
                uint160 hash;
                ssKey >> hash;
                CScript script;
                ssValue >> script;
                if (!pwallet->LoadCScript(script))
                {
                    printf("Error reading wallet database: LoadCScript failed\n");
                    return DB_CORRUPT;
                }
            }
        }
        pcursor->close();
    }

    BOOST_FOREACH(uint256 hash, vWalletUpgrade)
        WriteTx(hash, pwallet->mapWallet[hash]);

    printf("nFileVersion = %d\n", nFileVersion);


    // Rewrite encrypted wallets of versions 0.4.0 and 0.5.0rc:
    if (fIsEncrypted && (nFileVersion == 40000 || nFileVersion == 50000))
        return DB_NEED_REWRITE;

    if (nFileVersion < CLIENT_VERSION) // Update
        WriteVersion(CLIENT_VERSION);

    return DB_LOAD_OK;
}

void ThreadFlushWalletDB(void* parg)
{
    const string& strFile = ((const string*)parg)[0];
    static bool fOneThread;
    if (fOneThread)
        return;
    fOneThread = true;
    if (!GetBoolArg("-flushwallet", true))
        return;

    unsigned int nLastSeen = nWalletDBUpdated;
    unsigned int nLastFlushed = nWalletDBUpdated;
    int64 nLastWalletUpdate = GetTime();
    while (!fShutdown)
    {
        Sleep(500);

        if (nLastSeen != nWalletDBUpdated)
        {
            nLastSeen = nWalletDBUpdated;
            nLastWalletUpdate = GetTime();
        }

        if (nLastFlushed != nWalletDBUpdated && GetTime() - nLastWalletUpdate >= 2)
        {
            TRY_LOCK(bitdb.cs_db,lockDb);
            if (lockDb)
            {
                // Don't do this if any databases are in use
                int nRefCount = 0;
                map<string, int>::iterator mi = bitdb.mapFileUseCount.begin();
                while (mi != bitdb.mapFileUseCount.end())
                {
                    nRefCount += (*mi).second;
                    mi++;
                }

                if (nRefCount == 0 && !fShutdown)
                {
                    map<string, int>::iterator mi = bitdb.mapFileUseCount.find(strFile);
                    if (mi != bitdb.mapFileUseCount.end())
                    {
                        printf("Flushing wallet.dat\n");
                        nLastFlushed = nWalletDBUpdated;
                        int64 nStart = GetTimeMillis();

                        // Flush wallet.dat so it's self contained
                        bitdb.CloseDb(strFile);
                        bitdb.CheckpointLSN(strFile);

                        bitdb.mapFileUseCount.erase(mi++);
                        printf("Flushed wallet.dat %"PRI64d"ms\n", GetTimeMillis() - nStart);
                    }
                }
            }
        }
    }
}

bool BackupWallet(const CWallet& wallet, const string& strDest)
{
    if (!wallet.fFileBacked)
        return false;
    while (!fShutdown)
    {
        {
            LOCK(bitdb.cs_db);
            if (!bitdb.mapFileUseCount.count(wallet.strWalletFile) || bitdb.mapFileUseCount[wallet.strWalletFile] == 0)
            {
                // Flush log data to the dat file
                bitdb.CloseDb(wallet.strWalletFile);
                bitdb.CheckpointLSN(wallet.strWalletFile);
                bitdb.mapFileUseCount.erase(wallet.strWalletFile);

                // Copy wallet.dat
                filesystem::path pathSrc = GetDataDir() / wallet.strWalletFile;
                filesystem::path pathDest(strDest);
                if (filesystem::is_directory(pathDest))
                    pathDest /= wallet.strWalletFile;

                try {
#if BOOST_VERSION >= 104000
                    filesystem::copy_file(pathSrc, pathDest, filesystem::copy_option::overwrite_if_exists);
#else
                    filesystem::copy_file(pathSrc, pathDest);
#endif
                    printf("copied wallet.dat to %s\n", pathDest.string().c_str());
                    return true;
                } catch(const filesystem::filesystem_error &e) {
                    printf("error copying wallet.dat to %s - %s\n", pathDest.string().c_str(), e.what());
                    return false;
                }
            }
        }
        Sleep(100);
    }
    return false;
}
Commit	Line	Data
9eace6b1 JG	1	// Copyright (c) 2009-2010 Satoshi Nakamoto
	2	// Copyright (c) 2009-2012 The Bitcoin developers
	3	// Distributed under the MIT/X11 software license, see the accompanying
3a25a2b9	4	// file COPYING or http://www.opensource.org/licenses/mit-license.php.
9eace6b1 JG	5
	6	#include "walletdb.h"
	7	#include "wallet.h"
	8	#include <boost/filesystem.hpp>
	9
	10	using namespace std;
	11	using namespace boost;
	12
	13
	14	static uint64 nAccountingEntryNumber = 0;
	15
9eace6b1 JG	16	//
	17	// CWalletDB
	18	//
	19
	20	bool CWalletDB::WriteName(const string& strAddress, const string& strName)
	21	{
	22	nWalletDBUpdated++;
	23	return Write(make_pair(string("name"), strAddress), strName);
	24	}
	25
	26	bool CWalletDB::EraseName(const string& strAddress)
	27	{
	28	// This should only be used for sending addresses, never for receiving addresses,
	29	// receiving addresses must always have an address book entry if they're not change return.
	30	nWalletDBUpdated++;
	31	return Erase(make_pair(string("name"), strAddress));
	32	}
	33
	34	bool CWalletDB::ReadAccount(const string& strAccount, CAccount& account)
	35	{
	36	account.SetNull();
	37	return Read(make_pair(string("acc"), strAccount), account);
	38	}
	39
	40	bool CWalletDB::WriteAccount(const string& strAccount, const CAccount& account)
	41	{
	42	return Write(make_pair(string("acc"), strAccount), account);
	43	}
	44
	45	bool CWalletDB::WriteAccountingEntry(const CAccountingEntry& acentry)
	46	{
	47	return Write(boost::make_tuple(string("acentry"), acentry.strAccount, ++nAccountingEntryNumber), acentry);
	48	}
	49
	50	int64 CWalletDB::GetAccountCreditDebit(const string& strAccount)
	51	{
	52	list<CAccountingEntry> entries;
	53	ListAccountCreditDebit(strAccount, entries);
	54
	55	int64 nCreditDebit = 0;
	56	BOOST_FOREACH (const CAccountingEntry& entry, entries)
	57	nCreditDebit += entry.nCreditDebit;
	58
	59	return nCreditDebit;
	60	}
	61
	62	void CWalletDB::ListAccountCreditDebit(const string& strAccount, list<CAccountingEntry>& entries)
	63	{
	64	bool fAllAccounts = (strAccount == "*");
	65
	66	Dbc* pcursor = GetCursor();
	67	if (!pcursor)
	68	throw runtime_error("CWalletDB::ListAccountCreditDebit() : cannot create DB cursor");
	69	unsigned int fFlags = DB_SET_RANGE;
	70	loop
	71	{
	72	// Read next record
6b6aaa16	73	CDataStream ssKey(SER_DISK, CLIENT_VERSION);
9eace6b1 JG	74	if (fFlags == DB_SET_RANGE)
9eace6b1 JG	75	ssKey << boost::make_tuple(string("acentry"), (fAllAccounts? string("") : strAccount), uint64(0));
6b6aaa16	76	CDataStream ssValue(SER_DISK, CLIENT_VERSION);
9eace6b1 JG	77	int ret = ReadAtCursor(pcursor, ssKey, ssValue, fFlags);
	78	fFlags = DB_NEXT;
	79	if (ret == DB_NOTFOUND)
	80	break;
	81	else if (ret != 0)
	82	{
	83	pcursor->close();
	84	throw runtime_error("CWalletDB::ListAccountCreditDebit() : error scanning DB");
	85	}
	86
	87	// Unserialize
	88	string strType;
	89	ssKey >> strType;
	90	if (strType != "acentry")
	91	break;
	92	CAccountingEntry acentry;
	93	ssKey >> acentry.strAccount;
	94	if (!fAllAccounts && acentry.strAccount != strAccount)
	95	break;
	96
	97	ssValue >> acentry;
	98	entries.push_back(acentry);
	99	}
	100
	101	pcursor->close();
	102	}
	103
	104
	105	int CWalletDB::LoadWallet(CWallet* pwallet)
	106	{
	107	pwallet->vchDefaultKey.clear();
	108	int nFileVersion = 0;
	109	vector<uint256> vWalletUpgrade;
	110	bool fIsEncrypted = false;
	111
	112	//// todo: shouldn't we catch exceptions and try to recover and continue?
	113	{
	114	LOCK(pwallet->cs_wallet);
	115	int nMinVersion = 0;
	116	if (Read((string)"minversion", nMinVersion))
	117	{
	118	if (nMinVersion > CLIENT_VERSION)
	119	return DB_TOO_NEW;
	120	pwallet->LoadMinVersion(nMinVersion);
	121	}
	122
	123	// Get cursor
	124	Dbc* pcursor = GetCursor();
	125	if (!pcursor)
	126	{
	127	printf("Error getting wallet database cursor\n");
	128	return DB_CORRUPT;
	129	}
	130
	131	loop
	132	{
	133	// Read next record
6b6aaa16 PW	134	CDataStream ssKey(SER_DISK, CLIENT_VERSION);
6b6aaa16 PW	135	CDataStream ssValue(SER_DISK, CLIENT_VERSION);
9eace6b1 JG	136	int ret = ReadAtCursor(pcursor, ssKey, ssValue);
	137	if (ret == DB_NOTFOUND)
	138	break;
	139	else if (ret != 0)
	140	{
	141	printf("Error reading next record from wallet database\n");
	142	return DB_CORRUPT;
	143	}
	144
	145	// Unserialize
	146	// Taking advantage of the fact that pair serialization
	147	// is just the two items serialized one after the other
	148	string strType;
	149	ssKey >> strType;
	150	if (strType == "name")
	151	{
	152	string strAddress;
	153	ssKey >> strAddress;
	154	ssValue >> pwallet->mapAddressBook[strAddress];
	155	}
	156	else if (strType == "tx")
	157	{
	158	uint256 hash;
	159	ssKey >> hash;
	160	CWalletTx& wtx = pwallet->mapWallet[hash];
	161	ssValue >> wtx;
	162	wtx.BindWallet(pwallet);
	163
	164	if (wtx.GetHash() != hash)
	165	printf("Error in wallet.dat, hash mismatch\n");
	166
	167	// Undo serialize changes in 31600
	168	if (31404 <= wtx.fTimeReceivedIsTxTime && wtx.fTimeReceivedIsTxTime <= 31703)
	169	{
	170	if (!ssValue.empty())
	171	{
	172	char fTmp;
	173	char fUnused;
	174	ssValue >> fTmp >> fUnused >> wtx.strFromAccount;
	175	printf("LoadWallet() upgrading tx ver=%d %d '%s' %s\n", wtx.fTimeReceivedIsTxTime, fTmp, wtx.strFromAccount.c_str(), hash.ToString().c_str());
	176	wtx.fTimeReceivedIsTxTime = fTmp;
	177	}
	178	else
	179	{
	180	printf("LoadWallet() repairing tx ver=%d %s\n", wtx.fTimeReceivedIsTxTime, hash.ToString().c_str());
	181	wtx.fTimeReceivedIsTxTime = 0;
	182	}
	183	vWalletUpgrade.push_back(hash);
	184	}
	185
	186	//// debug print
	187	//printf("LoadWallet %s\n", wtx.GetHash().ToString().c_str());
82e6b92b	188	//printf(" %12"PRI64d" %s %s %s\n",
9eace6b1 JG	189	// wtx.vout[0].nValue,
	190	// DateTimeStrFormat("%x %H:%M:%S", wtx.GetBlockTime()).c_str(),
	191	// wtx.hashBlock.ToString().substr(0,20).c_str(),
	192	// wtx.mapValue["message"].c_str());
	193	}
	194	else if (strType == "acentry")
	195	{
	196	string strAccount;
	197	ssKey >> strAccount;
	198	uint64 nNumber;
	199	ssKey >> nNumber;
	200	if (nNumber > nAccountingEntryNumber)
	201	nAccountingEntryNumber = nNumber;
	202	}
	203	else if (strType == "key" \|\| strType == "wkey")
	204	{
	205	vector<unsigned char> vchPubKey;
	206	ssKey >> vchPubKey;
	207	CKey key;
	208	if (strType == "key")
	209	{
	210	CPrivKey pkey;
	211	ssValue >> pkey;
	212	key.SetPubKey(vchPubKey);
	213	key.SetPrivKey(pkey);
	214	if (key.GetPubKey() != vchPubKey)
	215	{
	216	printf("Error reading wallet database: CPrivKey pubkey inconsistency\n");
	217	return DB_CORRUPT;
	218	}
	219	if (!key.IsValid())
	220	{
	221	printf("Error reading wallet database: invalid CPrivKey\n");
	222	return DB_CORRUPT;
	223	}
	224	}
	225	else
	226	{
	227	CWalletKey wkey;
	228	ssValue >> wkey;
	229	key.SetPubKey(vchPubKey);
	230	key.SetPrivKey(wkey.vchPrivKey);
	231	if (key.GetPubKey() != vchPubKey)
	232	{
	233	printf("Error reading wallet database: CWalletKey pubkey inconsistency\n");
	234	return DB_CORRUPT;
	235	}
	236	if (!key.IsValid())
	237	{
	238	printf("Error reading wallet database: invalid CWalletKey\n");
	239	return DB_CORRUPT;
	240	}
	241	}
	242	if (!pwallet->LoadKey(key))
	243	{
	244	printf("Error reading wallet database: LoadKey failed\n");
	245	return DB_CORRUPT;
	246	}
	247	}
	248	else if (strType == "mkey")
	249	{
	250	unsigned int nID;
	251	ssKey >> nID;
	252	CMasterKey kMasterKey;
253	ssValue >> kMasterKey;
254	if(pwallet->mapMasterKeys.count(nID) != 0)
255	{
256	printf("Error reading wallet database: duplicate CMasterKey id %u\n", nID);
257	return DB_CORRUPT;
258	}
259	pwallet->mapMasterKeys[nID] = kMasterKey;
260	if (pwallet->nMasterKeyMaxID < nID)
261	pwallet->nMasterKeyMaxID = nID;
262	}
263	else if (strType == "ckey")
264	{
265	vector<unsigned char> vchPubKey;
266	ssKey >> vchPubKey;
267	vector<unsigned char> vchPrivKey;
268	ssValue >> vchPrivKey;
269	if (!pwallet->LoadCryptedKey(vchPubKey, vchPrivKey))
270	{
271	printf("Error reading wallet database: LoadCryptedKey failed\n");
272	return DB_CORRUPT;
273	}
274	fIsEncrypted = true;
275	}
276	else if (strType == "defaultkey")
277	{
278	ssValue >> pwallet->vchDefaultKey;
279	}
280	else if (strType == "pool")
281	{
282	int64 nIndex;
283	ssKey >> nIndex;
284	pwallet->setKeyPool.insert(nIndex);
285	}
286	else if (strType == "version")
287	{
288	ssValue >> nFileVersion;
289	if (nFileVersion == 10300)
290	nFileVersion = 300;
291	}
292	else if (strType == "cscript")
293	{
294	uint160 hash;
295	ssKey >> hash;
296	CScript script;
297	ssValue >> script;
298	if (!pwallet->LoadCScript(script))
299	{
300	printf("Error reading wallet database: LoadCScript failed\n");
301	return DB_CORRUPT;
302	}
303	}
304	}
305	pcursor->close();
306	}
307
308	BOOST_FOREACH(uint256 hash, vWalletUpgrade)
309	WriteTx(hash, pwallet->mapWallet[hash]);
310
311	printf("nFileVersion = %d\n", nFileVersion);
312
313
314	// Rewrite encrypted wallets of versions 0.4.0 and 0.5.0rc:
315	if (fIsEncrypted && (nFileVersion == 40000 \|\| nFileVersion == 50000))
316	return DB_NEED_REWRITE;
317
318	if (nFileVersion < CLIENT_VERSION) // Update
319	WriteVersion(CLIENT_VERSION);
320
321	return DB_LOAD_OK;
322	}
323
324	void ThreadFlushWalletDB(void* parg)
325	{
326	const string& strFile = ((const string*)parg)[0];
327	static bool fOneThread;
328	if (fOneThread)
329	return;
330	fOneThread = true;
331	if (!GetBoolArg("-flushwallet", true))
332	return;
333
334	unsigned int nLastSeen = nWalletDBUpdated;
335	unsigned int nLastFlushed = nWalletDBUpdated;
336	int64 nLastWalletUpdate = GetTime();
337	while (!fShutdown)
338	{
339	Sleep(500);
340
341	if (nLastSeen != nWalletDBUpdated)
342	{
343	nLastSeen = nWalletDBUpdated;
344	nLastWalletUpdate = GetTime();
345	}
346
347	if (nLastFlushed != nWalletDBUpdated && GetTime() - nLastWalletUpdate >= 2)
348	{
cd9696fc	349	TRY_LOCK(bitdb.cs_db,lockDb);
9eace6b1 JG	350	if (lockDb)
	351	{
	352	// Don't do this if any databases are in use
	353	int nRefCount = 0;
ffe8b77a JG	354	map<string, int>::iterator mi = bitdb.mapFileUseCount.begin();
ffe8b77a JG	355	while (mi != bitdb.mapFileUseCount.end())
9eace6b1 JG	356	{
	357	nRefCount += (*mi).second;
	358	mi++;
	359	}
	360
	361	if (nRefCount == 0 && !fShutdown)
	362	{
ffe8b77a JG	363	map<string, int>::iterator mi = bitdb.mapFileUseCount.find(strFile);
ffe8b77a JG	364	if (mi != bitdb.mapFileUseCount.end())
9eace6b1	365	{
9eace6b1 JG	366	printf("Flushing wallet.dat\n");
	367	nLastFlushed = nWalletDBUpdated;
	368	int64 nStart = GetTimeMillis();
	369
	370	// Flush wallet.dat so it's self contained
ffe8b77a	371	bitdb.CloseDb(strFile);
cd9696fc	372	bitdb.CheckpointLSN(strFile);
9eace6b1	373
ffe8b77a	374	bitdb.mapFileUseCount.erase(mi++);
9eace6b1 JG	375	printf("Flushed wallet.dat %"PRI64d"ms\n", GetTimeMillis() - nStart);
	376	}
	377	}
	378	}
	379	}
	380	}
	381	}
	382
	383	bool BackupWallet(const CWallet& wallet, const string& strDest)
	384	{
	385	if (!wallet.fFileBacked)
	386	return false;
	387	while (!fShutdown)
	388	{
	389	{
cd9696fc	390	LOCK(bitdb.cs_db);
ffe8b77a	391	if (!bitdb.mapFileUseCount.count(wallet.strWalletFile) \|\| bitdb.mapFileUseCount[wallet.strWalletFile] == 0)
9eace6b1 JG	392	{
9eace6b1 JG	393	// Flush log data to the dat file
ffe8b77a	394	bitdb.CloseDb(wallet.strWalletFile);
cd9696fc	395	bitdb.CheckpointLSN(wallet.strWalletFile);
ffe8b77a	396	bitdb.mapFileUseCount.erase(wallet.strWalletFile);
9eace6b1 JG	397
	398	// Copy wallet.dat
	399	filesystem::path pathSrc = GetDataDir() / wallet.strWalletFile;
	400	filesystem::path pathDest(strDest);
	401	if (filesystem::is_directory(pathDest))
	402	pathDest /= wallet.strWalletFile;
	403
	404	try {
	405	#if BOOST_VERSION >= 104000
	406	filesystem::copy_file(pathSrc, pathDest, filesystem::copy_option::overwrite_if_exists);
	407	#else
	408	filesystem::copy_file(pathSrc, pathDest);
	409	#endif
	410	printf("copied wallet.dat to %s\n", pathDest.string().c_str());
	411	return true;
	412	} catch(const filesystem::filesystem_error &e) {
	413	printf("error copying wallet.dat to %s - %s\n", pathDest.string().c_str(), e.what());
	414	return false;
	415	}
	416	}
	417	}
	418	Sleep(100);
	419	}
	420	return false;
	421	}