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better wallet.dat flush, consolidated QueryPerformanceCounter, PRI64d printf portability

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git-svn-id: https://bitcoin.svn.sourceforge.net/svnroot/bitcoin/trunk@20 1a98c847-1fd6-4fd8-948a-caf3550aa51b
This commit is contained in:
s_nakamoto
2009-10-29 20:10:46 +00:00
parent dc73b326f9
commit e8474beb6f
10 changed files with 121 additions and 75 deletions
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76
db.cpp
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@@ -4,8 +4,11 @@
#include "headers.h"
void ThreadFlushWalletDB(void* parg);
unsigned int nWalletDBUpdated;
@@ -56,6 +59,8 @@ CDB::CDB(const char* pszFile, const char* pszMode, bool fTxn) : pdb(NULL)
{
if (!fDbEnvInit)
{
if (fShutdown)
return;
string strAppDir = GetAppDir();
string strLogDir = strAppDir + "\\database";
_mkdir(strLogDir.c_str());
@@ -121,12 +126,10 @@ void CDB::Close()
pdb->close(0);
delete pdb;
pdb = NULL;
dbenv.txn_checkpoint(0, 0, 0);
CRITICAL_BLOCK(cs_db)
{
dbenv.txn_checkpoint(0, 0, 0);
--mapFileUseCount[strFile];
}
RandAddSeed();
}
@@ -499,25 +502,6 @@ bool CReviewDB::WriteReviews(uint256 hash, const vector<CReview>& vReviews)
// CWalletDB
//
CWalletDB::~CWalletDB()
{
// Flush whenever all handles to wallet.dat are closed
CRITICAL_BLOCK(cs_db)
{
Close(); // close includes a txn_checkpoint
map<string, int>::iterator mi = mapFileUseCount.find(strFile);
if (mi != mapFileUseCount.end())
{
int nRefCount = (*mi).second;
if (nRefCount == 0)
{
dbenv.lsn_reset(strFile.c_str(), 0);
mapFileUseCount.erase(mi++);
}
}
}
}
bool CWalletDB::LoadWallet(vector<unsigned char>& vchDefaultKeyRet)
{
vchDefaultKeyRet.clear();
@@ -610,7 +594,7 @@ bool CWalletDB::LoadWallet(vector<unsigned char>& vchDefaultKeyRet)
printf("fShowGenerated = %d\n", fShowGenerated);
printf("fGenerateBitcoins = %d\n", fGenerateBitcoins);
printf("nTransactionFee = %I64d\n", nTransactionFee);
printf("nTransactionFee = %"PRI64d"\n", nTransactionFee);
printf("addrIncoming = %s\n", addrIncoming.ToString().c_str());
printf("fMinimizeToTray = %d\n", fMinimizeToTray);
printf("fMinimizeOnClose = %d\n", fMinimizeOnClose);
@@ -655,5 +639,51 @@ bool LoadWallet(bool& fFirstRunRet)
CWalletDB().WriteDefaultKey(keyUser.GetPubKey());
}
_beginthread(ThreadFlushWalletDB, 0, NULL);
return true;
}
void ThreadFlushWalletDB(void* parg)
{
static bool fOneThread;
if (fOneThread)
return;
fOneThread = true;
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 && nLastWalletUpdate < GetTime() - 1)
{
TRY_CRITICAL_BLOCK(cs_db)
{
string strFile = "wallet.dat";
map<string, int>::iterator mi = mapFileUseCount.find(strFile);
if (mi != mapFileUseCount.end())
{
int nRefCount = (*mi).second;
if (nRefCount == 0 && !fShutdown)
{
// Flush wallet.dat so it's self contained
nLastFlushed == nWalletDBUpdated;
int64 nStart = PerformanceCounter();
dbenv.txn_checkpoint(0, 0, 0);
dbenv.lsn_reset(strFile.c_str(), 0);
printf("Flushed wallet.dat %15"PRI64d"\n", PerformanceCounter() - nStart);
mapFileUseCount.erase(mi++);
}
}
}
}
}
}