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-rw-r--r--src/main.cpp126
1 files changed, 108 insertions, 18 deletions
diff --git a/src/main.cpp b/src/main.cpp
index 8b1532e48c..15a2331376 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1399,6 +1399,8 @@ bool CBlock::DisconnectBlock(CTxDB& txdb, CBlockIndex* pindex)
return true;
}
+bool FindUndoPos(CTxDB &txdb, int nFile, CDiskBlockPos &pos, unsigned int nAddSize);
+
bool CBlock::ConnectBlock(CTxDB& txdb, CBlockIndex* pindex, bool fJustCheck)
{
// Check it again in case a previous version let a bad block in
@@ -1430,7 +1432,7 @@ bool CBlock::ConnectBlock(CTxDB& txdb, CBlockIndex* pindex, bool fJustCheck)
// Since we're just checking the block and not actually connecting it, it might not (and probably shouldn't) be on the disk to get the transaction from
nTxPos = 1;
else
- nTxPos = ::GetSerializeSize(CBlock(), SER_DISK, CLIENT_VERSION) - 1 + GetSizeOfCompactSize(vtx.size());
+ nTxPos = pindex->pos.nPos + ::GetSerializeSize(CBlock(), SER_DISK, CLIENT_VERSION) - 1 + GetSizeOfCompactSize(vtx.size());
CBlockUndo blockundo;
@@ -1507,6 +1509,17 @@ bool CBlock::ConnectBlock(CTxDB& txdb, CBlockIndex* pindex, bool fJustCheck)
return error("ConnectBlock() : UpdateTxIndex failed");
}
+ // Write undo information to disk
+ if (pindex->GetUndoPos().IsNull() && pindex->nHeight > Checkpoints::GetTotalBlocksEstimate())
+ {
+ CDiskBlockPos pos;
+ if (!FindUndoPos(txdb, pindex->pos.nFile, pos, ::GetSerializeSize(blockundo, SER_DISK, CLIENT_VERSION) + 8))
+ return error("ConnectBlock() : FindUndoPos failed");
+ if (!blockundo.WriteToDisk(pos))
+ return error("ConnectBlock() : CBlockUndo::WriteToDisk failed");
+ pindex->nUndoPos = pos.nPos;
+ }
+
// Update block index on disk without changing it in memory.
// The memory index structure will be changed after the db commits.
if (pindex->pprev)
@@ -1517,13 +1530,6 @@ bool CBlock::ConnectBlock(CTxDB& txdb, CBlockIndex* pindex, bool fJustCheck)
return error("ConnectBlock() : WriteBlockIndex failed");
}
- // Write undo information to disk
- if (pindex->nHeight > Checkpoints::GetTotalBlocksEstimate())
- {
- CAutoFile fileUndo(fopen(pindex->GetBlockPos().GetUndoFile(GetDataDir()).string().c_str(), "wb"), SER_DISK, CLIENT_VERSION);
- fileUndo << blockundo;
- }
-
// Watch for transactions paying to me
BOOST_FOREACH(CTransaction& tx, vtx)
SyncWithWallets(tx, this, true);
@@ -1788,8 +1794,8 @@ bool CBlock::AddToBlockIndex(const CDiskBlockPos &pos)
pindexNew->nHeight = pindexNew->pprev->nHeight + 1;
}
pindexNew->bnChainWork = (pindexNew->pprev ? pindexNew->pprev->bnChainWork : 0) + pindexNew->GetBlockWork();
- assert(pos.nHeight == pindexNew->nHeight);
- pindexNew->nAlternative = pos.nAlternative;
+ pindexNew->pos = pos;
+ pindexNew->nUndoPos = 0;
CTxDB txdb;
if (!txdb.TxnBegin())
@@ -1819,6 +1825,57 @@ bool CBlock::AddToBlockIndex(const CDiskBlockPos &pos)
+bool FindBlockPos(CTxDB &txdb, CDiskBlockPos &pos, unsigned int nAddSize, unsigned int nHeight, uint64 nTime)
+{
+ bool fUpdatedLast = false;
+
+ LOCK(cs_LastBlockFile);
+
+ while (infoLastBlockFile.nSize + nAddSize >= MAX_BLOCKFILE_SIZE) {
+ printf("Leaving block file %i: %s\n", nLastBlockFile, infoLastBlockFile.ToString().c_str());
+ nLastBlockFile++;
+ infoLastBlockFile.SetNull();
+ txdb.ReadBlockFileInfo(nLastBlockFile, infoLastBlockFile); // check whether data for the new file somehow already exist; can fail just fine
+ fUpdatedLast = true;
+ }
+
+ pos.nFile = nLastBlockFile;
+ pos.nPos = infoLastBlockFile.nSize;
+ infoLastBlockFile.nSize += nAddSize;
+ infoLastBlockFile.AddBlock(nHeight, nTime);
+
+ if (!txdb.WriteBlockFileInfo(nLastBlockFile, infoLastBlockFile))
+ return error("FindBlockPos() : cannot write updated block info");
+ if (fUpdatedLast)
+ txdb.WriteLastBlockFile(nLastBlockFile);
+
+ return true;
+}
+
+bool FindUndoPos(CTxDB &txdb, int nFile, CDiskBlockPos &pos, unsigned int nAddSize)
+{
+ pos.nFile = nFile;
+
+ LOCK(cs_LastBlockFile);
+
+ if (nFile == nLastBlockFile) {
+ pos.nPos = infoLastBlockFile.nUndoSize;
+ infoLastBlockFile.nUndoSize += nAddSize;
+ if (!txdb.WriteBlockFileInfo(nLastBlockFile, infoLastBlockFile))
+ return error("FindUndoPos() : cannot write updated block info");
+ return true;
+ }
+
+ CBlockFileInfo info;
+ if (!txdb.ReadBlockFileInfo(nFile, info))
+ return error("FindUndoPos() : cannot read block info");
+ pos.nPos = info.nUndoSize;
+ info.nUndoSize += nAddSize;
+ if (!txdb.WriteBlockFileInfo(nFile, info))
+ return error("FindUndoPos() : cannot write updated block info");
+ return true;
+}
+
bool CBlock::CheckBlock(bool fCheckPOW, bool fCheckMerkleRoot) const
{
@@ -1928,9 +1985,15 @@ bool CBlock::AcceptBlock()
}
// Write block to history file
- CDiskBlockPos blockPos = CDiskBlockPos(nHeight);
+ unsigned int nBlockSize = ::GetSerializeSize(*this, SER_DISK, CLIENT_VERSION);
if (!CheckDiskSpace(::GetSerializeSize(*this, SER_DISK, CLIENT_VERSION)))
return error("AcceptBlock() : out of disk space");
+ CDiskBlockPos blockPos;
+ {
+ CTxDB txdb;
+ if (!FindBlockPos(txdb, blockPos, nBlockSize+8, nHeight, nTime))
+ return error("AcceptBlock() : FindBlockPos failed");
+ }
if (!WriteToDisk(blockPos))
return error("AcceptBlock() : WriteToDisk failed");
if (!AddToBlockIndex(blockPos))
@@ -2067,18 +2130,39 @@ bool CheckDiskSpace(uint64 nAdditionalBytes)
return true;
}
-FILE* OpenBlockFile(const CDiskBlockPos &pos, const char* pszMode)
+CCriticalSection cs_LastBlockFile;
+CBlockFileInfo infoLastBlockFile;
+int nLastBlockFile = 0;
+
+FILE* OpenDiskFile(const CDiskBlockPos &pos, const char *prefix, bool fReadOnly)
{
- boost::filesystem::path path = pos.GetFileName(GetDataDir());
- boost::filesystem::create_directories(path.parent_path());
if (pos.IsNull() || pos.IsMemPool())
return NULL;
- FILE* file = fopen(path.string().c_str(), pszMode);
+ boost::filesystem::path path = GetDataDir() / "blocks" / strprintf("%s%05u.dat", prefix, pos.nFile);
+ boost::filesystem::create_directories(path.parent_path());
+ FILE* file = fopen(path.string().c_str(), "rb+");
+ if (!file && !fReadOnly)
+ file = fopen(path.string().c_str(), "wb+");
if (!file)
return NULL;
+ if (pos.nPos) {
+ if (fseek(file, pos.nPos, SEEK_SET)) {
+ printf("Unable to seek to position %u of %s\n", pos.nPos, path.string().c_str());
+ fclose(file);
+ return NULL;
+ }
+ }
return file;
}
+FILE* OpenBlockFile(const CDiskBlockPos &pos, bool fReadOnly) {
+ return OpenDiskFile(pos, "blk", fReadOnly);
+}
+
+FILE *OpenUndoFile(const CDiskBlockPos &pos, bool fReadOnly) {
+ return OpenDiskFile(pos, "rev", fReadOnly);
+}
+
bool LoadBlockIndex(bool fAllowNew)
{
if (fTestNet)
@@ -2146,7 +2230,13 @@ bool LoadBlockIndex(bool fAllowNew)
assert(hash == hashGenesisBlock);
// Start new block file
- CDiskBlockPos blockPos(0);
+ unsigned int nBlockSize = ::GetSerializeSize(block, SER_DISK, CLIENT_VERSION);
+ CDiskBlockPos blockPos;
+ {
+ CTxDB txdb;
+ if (!FindBlockPos(txdb, blockPos, nBlockSize+8, 0, block.nTime))
+ return error("AcceptBlock() : FindBlockPos failed");
+ }
if (!block.WriteToDisk(blockPos))
return error("LoadBlockIndex() : writing genesis block to disk failed");
if (!block.AddToBlockIndex(blockPos))
@@ -2203,9 +2293,9 @@ void PrintBlockTree()
// print item
CBlock block;
block.ReadFromDisk(pindex);
- printf("%d (%s) %s tx %"PRIszu"",
+ printf("%d (blk%05u.dat:0x%lx) %s tx %"PRIszu"",
pindex->nHeight,
- pindex->GetBlockPos().GetFileName("").string().c_str(),
+ pindex->GetBlockPos().nFile, pindex->GetBlockPos().nPos,
DateTimeStrFormat("%x %H:%M:%S", block.GetBlockTime()).c_str(),
block.vtx.size());
generated by cgit v1.2.3 (git 2.26.2) at 2024-09-30 09:37:49 +0000