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Store a fixed order of transactions (and accounting) in the wallet

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For backward compatibility, new accounting data is stored after a \0 in the comment string.
This way, old versions and third-party software should load and store them, but all actual use (listtransactions, for example) ignores it.
This commit is contained in:
Luke Dashjr 2012-05-27 23:06:09 +00:00
parent cf78183fad
commit 9c7722b7c5
6 changed files with 315 additions and 7 deletions
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12
src/rpcwallet.cpp
View File

@ -542,6 +542,7 @@ Value movecmd(const Array& params, bool fHelp)
// Debit
CAccountingEntry debit;
debit.nOrderPos = pwalletMain->nOrderPosNext++;
debit.strAccount = strFrom;
debit.nCreditDebit = -nAmount;
debit.nTime = nNow;
@ -551,6 +552,7 @@ Value movecmd(const Array& params, bool fHelp)
// Credit
CAccountingEntry credit;
credit.nOrderPos = pwalletMain->nOrderPosNext++;
credit.strAccount = strTo;
credit.nCreditDebit = nAmount;
credit.nTime = nNow;
@ -984,27 +986,27 @@ Value listtransactions(const Array& params, bool fHelp)
Array ret;
CWalletDB walletdb(pwalletMain->strWalletFile);
// First: get all CWalletTx and CAccountingEntry into a sorted-by-time multimap.
// First: get all CWalletTx and CAccountingEntry into a sorted-by-order multimap.
typedef pair<CWalletTx*, CAccountingEntry*> TxPair;
typedef multimap<int64, TxPair > TxItems;
TxItems txByTime;
TxItems txOrdered;
// Note: maintaining indices in the database of (account,time) --> txid and (account, time) --> acentry
// would make this much faster for applications that do this a lot.
for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); ++it)
{
CWalletTx* wtx = &((*it).second);
txByTime.insert(make_pair(wtx->GetTxTime(), TxPair(wtx, (CAccountingEntry*)0)));
txOrdered.insert(make_pair(wtx->nOrderPos, TxPair(wtx, (CAccountingEntry*)0)));
}
list<CAccountingEntry> acentries;
walletdb.ListAccountCreditDebit(strAccount, acentries);
BOOST_FOREACH(CAccountingEntry& entry, acentries)
{
txByTime.insert(make_pair(entry.nTime, TxPair((CWalletTx*)0, &entry)));
txOrdered.insert(make_pair(entry.nOrderPos, TxPair((CWalletTx*)0, &entry)));
}
// iterate backwards until we have nCount items to return:
for (TxItems::reverse_iterator it = txByTime.rbegin(); it != txByTime.rend(); ++it)
for (TxItems::reverse_iterator it = txOrdered.rbegin(); it != txOrdered.rend(); ++it)
{
CWalletTx *const pwtx = (*it).second.first;
if (pwtx != 0)

123
src/test/accounting_tests.cpp Normal file
View File

@ -0,0 +1,123 @@
#include <boost/test/unit_test.hpp>
#include <boost/foreach.hpp>
#include "init.h"
#include "wallet.h"
#include "walletdb.h"
BOOST_AUTO_TEST_SUITE(accounting_tests)
static void
GetResults(CWalletDB& walletdb, std::map<int64, CAccountingEntry>& results)
{
std::list<CAccountingEntry> aes;
results.clear();
BOOST_CHECK(walletdb.ReorderTransactions(pwalletMain) == DB_LOAD_OK);
walletdb.ListAccountCreditDebit("", aes);
BOOST_FOREACH(CAccountingEntry& ae, aes)
{
results[ae.nOrderPos] = ae;
}
}
BOOST_AUTO_TEST_CASE(acc_orderupgrade)
{
CWalletDB walletdb(pwalletMain->strWalletFile);
std::vector<CWalletTx*> vpwtx;
CWalletTx wtx;
CAccountingEntry ae;
std::map<int64, CAccountingEntry> results;
ae.strAccount = "";
ae.nCreditDebit = 1;
ae.nTime = 1333333333;
ae.strOtherAccount = "b";
ae.strComment = "";
walletdb.WriteAccountingEntry(ae);
wtx.mapValue["comment"] = "z";
pwalletMain->AddToWallet(wtx);
vpwtx.push_back(&pwalletMain->mapWallet[wtx.GetHash()]);
vpwtx[0]->nTimeReceived = (unsigned int)1333333335;
vpwtx[0]->nOrderPos = -1;
ae.nTime = 1333333336;
ae.strOtherAccount = "c";
walletdb.WriteAccountingEntry(ae);
GetResults(walletdb, results);
BOOST_CHECK(pwalletMain->nOrderPosNext == 3);
BOOST_CHECK(2 == results.size());
BOOST_CHECK(results[0].nTime == 1333333333);
BOOST_CHECK(results[0].strComment.empty());
BOOST_CHECK(1 == vpwtx[0]->nOrderPos);
BOOST_CHECK(results[2].nTime == 1333333336);
BOOST_CHECK(results[2].strOtherAccount == "c");
ae.nTime = 1333333330;
ae.strOtherAccount = "d";
ae.nOrderPos = pwalletMain->nOrderPosNext++;
walletdb.WriteAccountingEntry(ae);
GetResults(walletdb, results);
BOOST_CHECK(results.size() == 3);
BOOST_CHECK(pwalletMain->nOrderPosNext == 4);
BOOST_CHECK(results[0].nTime == 1333333333);
BOOST_CHECK(1 == vpwtx[0]->nOrderPos);
BOOST_CHECK(results[2].nTime == 1333333336);
BOOST_CHECK(results[3].nTime == 1333333330);
BOOST_CHECK(results[3].strComment.empty());
wtx.mapValue["comment"] = "y";
--wtx.nLockTime; // Just to change the hash :)
pwalletMain->AddToWallet(wtx);
vpwtx.push_back(&pwalletMain->mapWallet[wtx.GetHash()]);
vpwtx[1]->nTimeReceived = (unsigned int)1333333336;
wtx.mapValue["comment"] = "x";
--wtx.nLockTime; // Just to change the hash :)
pwalletMain->AddToWallet(wtx);
vpwtx.push_back(&pwalletMain->mapWallet[wtx.GetHash()]);
vpwtx[2]->nTimeReceived = (unsigned int)1333333329;
vpwtx[2]->nOrderPos = -1;
GetResults(walletdb, results);
BOOST_CHECK(results.size() == 3);
BOOST_CHECK(pwalletMain->nOrderPosNext == 6);
BOOST_CHECK(0 == vpwtx[2]->nOrderPos);
BOOST_CHECK(results[1].nTime == 1333333333);
BOOST_CHECK(2 == vpwtx[0]->nOrderPos);
BOOST_CHECK(results[3].nTime == 1333333336);
BOOST_CHECK(results[4].nTime == 1333333330);
BOOST_CHECK(results[4].strComment.empty());
BOOST_CHECK(5 == vpwtx[1]->nOrderPos);
ae.nTime = 1333333334;
ae.strOtherAccount = "e";
ae.nOrderPos = -1;
walletdb.WriteAccountingEntry(ae);
GetResults(walletdb, results);
BOOST_CHECK(results.size() == 4);
BOOST_CHECK(pwalletMain->nOrderPosNext == 7);
BOOST_CHECK(0 == vpwtx[2]->nOrderPos);
BOOST_CHECK(results[1].nTime == 1333333333);
BOOST_CHECK(2 == vpwtx[0]->nOrderPos);
BOOST_CHECK(results[3].nTime == 1333333336);
BOOST_CHECK(results[3].strComment.empty());
BOOST_CHECK(results[4].nTime == 1333333330);
BOOST_CHECK(results[4].strComment.empty());
BOOST_CHECK(results[5].nTime == 1333333334);
BOOST_CHECK(6 == vpwtx[1]->nOrderPos);
}
BOOST_AUTO_TEST_SUITE_END()

3
src/wallet.cpp
View File

@ -336,7 +336,10 @@ bool CWallet::AddToWallet(const CWalletTx& wtxIn)
wtx.BindWallet(this);
bool fInsertedNew = ret.second;
if (fInsertedNew)
{
wtx.nTimeReceived = GetAdjustedTime();
wtx.nOrderPos = nOrderPosNext++;
}
bool fUpdated = false;
if (!fInsertedNew)

83
src/wallet.h
View File

@ -5,11 +5,17 @@
#ifndef BITCOIN_WALLET_H
#define BITCOIN_WALLET_H
#include <string>
#include <vector>
#include <stdlib.h>
#include "main.h"
#include "key.h"
#include "keystore.h"
#include "script.h"
#include "ui_interface.h"
#include "util.h"
class CWalletTx;
class CReserveKey;
@ -103,6 +109,7 @@ public:
}
std::map<uint256, CWalletTx> mapWallet;
int64 nOrderPosNext;
std::map<uint256, int> mapRequestCount;
std::map<CTxDestination, std::string> mapAddressBook;
@ -304,6 +311,32 @@ public:
};
typedef std::map<std::string, std::string> mapValue_t;
static
void
ReadOrderPos(int64& nOrderPos, mapValue_t& mapValue)
{
if (!mapValue.count("n"))
{
nOrderPos = -1; // TODO: calculate elsewhere
return;
}
nOrderPos = atoi64(mapValue["n"].c_str());
}
static
void
WriteOrderPos(const int64& nOrderPos, mapValue_t& mapValue)
{
if (nOrderPos == -1)
return;
mapValue["n"] = i64tostr(nOrderPos);
}
/** A transaction with a bunch of additional info that only the owner cares about.
* It includes any unrecorded transactions needed to link it back to the block chain.
*/
@ -314,13 +347,14 @@ private:
public:
std::vector<CMerkleTx> vtxPrev;
std::map<std::string, std::string> mapValue;
mapValue_t mapValue;
std::vector<std::pair<std::string, std::string> > vOrderForm;
unsigned int fTimeReceivedIsTxTime;
unsigned int nTimeReceived; // time received by this node
char fFromMe;
std::string strFromAccount;
std::vector<char> vfSpent; // which outputs are already spent
int64 nOrderPos; // position in ordered transaction list
// memory only
mutable bool fDebitCached;
@ -371,6 +405,7 @@ public:
nCreditCached = 0;
nAvailableCreditCached = 0;
nChangeCached = 0;
nOrderPos = -1;
}
IMPLEMENT_SERIALIZE
@ -392,6 +427,8 @@ public:
fSpent = true;
}
pthis->mapValue["spent"] = str;
WriteOrderPos(pthis->nOrderPos, pthis->mapValue);
}
nSerSize += SerReadWrite(s, *(CMerkleTx*)this, nType, nVersion,ser_action);
@ -414,9 +451,13 @@ public:
pthis->vfSpent.assign(vout.size(), fSpent);
}
if (fRead)
ReadOrderPos(pthis->nOrderPos, pthis->mapValue);
pthis->mapValue.erase("fromaccount");
pthis->mapValue.erase("version");
pthis->mapValue.erase("spent");
pthis->mapValue.erase("n");
)
// marks certain txout's as spent
@ -705,6 +746,9 @@ public:
int64 nTime;
std::string strOtherAccount;
std::string strComment;
mapValue_t mapValue;
int64 nOrderPos; // position in ordered transaction list
uint64 nEntryNo;
CAccountingEntry()
{
@ -718,18 +762,55 @@ public:
strAccount.clear();
strOtherAccount.clear();
strComment.clear();
nOrderPos = -1;
}
IMPLEMENT_SERIALIZE
(
CAccountingEntry& me = *const_cast<CAccountingEntry*>(this);
if (!(nType & SER_GETHASH))
READWRITE(nVersion);
// Note: strAccount is serialized as part of the key, not here.
READWRITE(nCreditDebit);
READWRITE(nTime);
READWRITE(strOtherAccount);
if (!fRead)
{
WriteOrderPos(nOrderPos, me.mapValue);
if (!(mapValue.empty() && _ssExtra.empty()))
{
CDataStream ss(nType, nVersion);
ss.insert(ss.begin(), '\0');
ss << mapValue;
ss.insert(ss.end(), _ssExtra.begin(), _ssExtra.end());
me.strComment.append(ss.str());
}
}
READWRITE(strComment);
size_t nSepPos = strComment.find("\0", 0, 1);
if (fRead)
{
me.mapValue.clear();
if (std::string::npos != nSepPos)
{
CDataStream ss(std::vector<char>(strComment.begin() + nSepPos + 1, strComment.end()), nType, nVersion);
ss >> me.mapValue;
me._ssExtra = std::vector<char>(ss.begin(), ss.end());
}
ReadOrderPos(me.nOrderPos, me.mapValue);
}
if (std::string::npos != nSepPos)
me.strComment.erase(nSepPos);
me.mapValue.erase("n");
)
private:
std::vector<char> _ssExtra;
};
bool GetWalletFile(CWallet* pwallet, std::string &strWalletFileOut);

97
src/walletdb.cpp
View File

@ -42,9 +42,14 @@ bool CWalletDB::WriteAccount(const string& strAccount, const CAccount& account)
return Write(make_pair(string("acc"), strAccount), account);
}
bool CWalletDB::WriteAccountingEntry(const uint64 nAccEntryNum, const CAccountingEntry& acentry)
{
return Write(boost::make_tuple(string("acentry"), acentry.strAccount, nAccEntryNum), acentry);
}
bool CWalletDB::WriteAccountingEntry(const CAccountingEntry& acentry)
{
return Write(boost::make_tuple(string("acentry"), acentry.strAccount, ++nAccountingEntryNumber), acentry);
return WriteAccountingEntry(++nAccountingEntryNumber, acentry);
}
int64 CWalletDB::GetAccountCreditDebit(const string& strAccount)
@ -95,6 +100,7 @@ void CWalletDB::ListAccountCreditDebit(const string& strAccount, list<CAccountin
break;
ssValue >> acentry;
ssKey >> acentry.nEntryNo;
entries.push_back(acentry);
}
@ -102,12 +108,86 @@ void CWalletDB::ListAccountCreditDebit(const string& strAccount, list<CAccountin
}
int
CWalletDB::ReorderTransactions(CWallet* pwallet)
{
LOCK(pwallet->cs_wallet);
// Old wallets didn't have any defined order for transactions
// Probably a bad idea to change the output of this
// First: get all CWalletTx and CAccountingEntry into a sorted-by-time multimap.
typedef pair<CWalletTx*, CAccountingEntry*> TxPair;
typedef multimap<int64, TxPair > TxItems;
TxItems txByTime;
for (map<uint256, CWalletTx>::iterator it = pwallet->mapWallet.begin(); it != pwallet->mapWallet.end(); ++it)
{
CWalletTx* wtx = &((*it).second);
txByTime.insert(make_pair(wtx->nTimeReceived, TxPair(wtx, (CAccountingEntry*)0)));
}
list<CAccountingEntry> acentries;
ListAccountCreditDebit("", acentries);
BOOST_FOREACH(CAccountingEntry& entry, acentries)
{
txByTime.insert(make_pair(entry.nTime, TxPair((CWalletTx*)0, &entry)));
}
int64& nOrderPosNext = pwallet->nOrderPosNext;
nOrderPosNext = 0;
std::vector<int64> nOrderPosOffsets;
for (TxItems::iterator it = txByTime.begin(); it != txByTime.end(); ++it)
{
CWalletTx *const pwtx = (*it).second.first;
CAccountingEntry *const pacentry = (*it).second.second;
int64& nOrderPos = (pwtx != 0) ? pwtx->nOrderPos : pacentry->nOrderPos;
if (nOrderPos == -1)
{
nOrderPos = nOrderPosNext++;
nOrderPosOffsets.push_back(nOrderPos);
if (pacentry)
// Have to write accounting regardless, since we don't keep it in memory
if (!WriteAccountingEntry(pacentry->nEntryNo, *pacentry))
return DB_LOAD_FAIL;
}
else
{
int64 nOrderPosOff = 0;
BOOST_FOREACH(const int64& nOffsetStart, nOrderPosOffsets)
{
if (nOrderPos >= nOffsetStart)
++nOrderPosOff;
}
nOrderPos += nOrderPosOff;
nOrderPosNext = std::max(nOrderPosNext, nOrderPos + 1);
if (!nOrderPosOff)
continue;
// Since we're changing the order, write it back
if (pwtx)
{
if (!WriteTx(pwtx->GetHash(), *pwtx))
return DB_LOAD_FAIL;
}
else
if (!WriteAccountingEntry(pacentry->nEntryNo, *pacentry))
return DB_LOAD_FAIL;
}
}
return DB_LOAD_OK;
}
int CWalletDB::LoadWallet(CWallet* pwallet)
{
pwallet->vchDefaultKey = CPubKey();
int nFileVersion = 0;
vector<uint256> vWalletUpgrade;
bool fIsEncrypted = false;
bool fAnyUnordered = false;
//// todo: shouldn't we catch exceptions and try to recover and continue?
{
@ -183,6 +263,9 @@ int CWalletDB::LoadWallet(CWallet* pwallet)
vWalletUpgrade.push_back(hash);
}
if (wtx.nOrderPos == -1)
fAnyUnordered = true;
//// debug print
//printf("LoadWallet %s\n", wtx.GetHash().ToString().c_str());
//printf(" %12"PRI64d" %s %s %s\n",
@ -199,6 +282,14 @@ int CWalletDB::LoadWallet(CWallet* pwallet)
ssKey >> nNumber;
if (nNumber > nAccountingEntryNumber)
nAccountingEntryNumber = nNumber;
if (!fAnyUnordered)
{
CAccountingEntry acentry;
ssValue >> acentry;
if (acentry.nOrderPos == -1)
fAnyUnordered = true;
}
}
else if (strType == "key" || strType == "wkey")
{
@ -318,6 +409,10 @@ int CWalletDB::LoadWallet(CWallet* pwallet)
if (nFileVersion < CLIENT_VERSION) // Update
WriteVersion(CLIENT_VERSION);
if (fAnyUnordered)
return ReorderTransactions(pwallet);
// If you add anything else here... be sure to do it if ReorderTransactions returns DB_LOAD_OK too!
return DB_LOAD_OK;
}

4
src/walletdb.h
View File

@ -170,10 +170,14 @@ public:
bool ReadAccount(const std::string& strAccount, CAccount& account);
bool WriteAccount(const std::string& strAccount, const CAccount& account);
private:
bool WriteAccountingEntry(const uint64 nAccEntryNum, const CAccountingEntry& acentry);
public:
bool WriteAccountingEntry(const CAccountingEntry& acentry);
int64 GetAccountCreditDebit(const std::string& strAccount);
void ListAccountCreditDebit(const std::string& strAccount, std::list<CAccountingEntry>& acentries);
int ReorderTransactions(CWallet*);
int LoadWallet(CWallet* pwallet);
};