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Flush and sync block data

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This commit is contained in:
Pieter Wuille 2012-09-06 03:21:18 +02:00
parent d979e6e36a
commit 44d40f26dc
1 changed files with 21 additions and 8 deletions
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29
src/main.cpp
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@ -1498,6 +1498,23 @@ bool CBlock::DisconnectBlock(CBlockIndex *pindex, CCoinsViewCache &view)
return true;
}
void static FlushBlockFile()
{
LOCK(cs_LastBlockFile);
CDiskBlockPos posOld;
posOld.nFile = nLastBlockFile;
posOld.nPos = 0;
FILE *fileOld = OpenBlockFile(posOld);
FileCommit(fileOld);
fclose(fileOld);
fileOld = OpenUndoFile(posOld);
FileCommit(fileOld);
fclose(fileOld);
}
bool FindUndoPos(int nFile, CDiskBlockPos &pos, unsigned int nAddSize);
bool CBlock::ConnectBlock(CBlockIndex* pindex, CCoinsViewCache &view, bool fJustCheck)
@ -1700,9 +1717,11 @@ bool SetBestChain(CBlockIndex* pindexNew)
// Make sure it's successfully written to disk before changing memory structure
bool fIsInitialDownload = IsInitialBlockDownload();
if (!fIsInitialDownload || view.GetCacheSize()>5000)
if (!fIsInitialDownload || view.GetCacheSize()>5000) {
FlushBlockFile();
if (!view.Flush())
return false;
}
// At this point, all changes have been done to the database.
// Proceed by updating the memory structures.
@ -1823,7 +1842,6 @@ bool CBlock::AddToBlockIndex(const CDiskBlockPos &pos)
}
bool FindBlockPos(CDiskBlockPos &pos, unsigned int nAddSize, unsigned int nHeight, uint64 nTime)
{
bool fUpdatedLast = false;
@ -1832,12 +1850,7 @@ bool FindBlockPos(CDiskBlockPos &pos, unsigned int nAddSize, unsigned int nHeigh
while (infoLastBlockFile.nSize + nAddSize >= MAX_BLOCKFILE_SIZE) {
printf("Leaving block file %i: %s\n", nLastBlockFile, infoLastBlockFile.ToString().c_str());
FILE *file = OpenBlockFile(pos);
FileCommit(file);
fclose(file);
file = OpenUndoFile(pos);
FileCommit(file);
fclose(file);
FlushBlockFile();
nLastBlockFile++;
infoLastBlockFile.SetNull();
pblocktree->ReadBlockFileInfo(nLastBlockFile, infoLastBlockFile); // check whether data for the new file somehow already exist; can fail just fine