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changeset 2116:94844608a7d7 draft

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Use transactions-updated as flush condition The normal checkpointing during the block chain download is reduced to every five minutes only, but forced every 200000 updated transactions.
author Pieter Wuille <pieter.wuille@gmail.com>
date Wed, 28 Mar 2012 22:09:18 +0200
parents bc3eab71a1ac
children 07216ae7d96a
files src/db.cpp
diffstat 1 files changed, 12 insertions(+), 2 deletions(-) [+]
line wrap: on
line diff
--- a/src/db.cpp
+++ b/src/db.cpp
@@ -28,6 +28,7 @@
 DbEnv dbenv(0);
 static map<string, int> mapFileUseCount;
 static map<string, Db*> mapDb;
+static int64 nTxn = 0;
 
 static void EnvShutdown()
 {
@@ -160,8 +161,15 @@
         nMinutes = 1;
     if (strFile == "addr.dat")
         nMinutes = 2;
-    if (strFile == "blkindex.dat" && IsInitialBlockDownload() && nBestHeight % 5000 != 0)
-        nMinutes = 1;
+    if (strFile == "blkindex.dat" && IsInitialBlockDownload())
+        nMinutes = 5;
+
+    if (nMinutes == 0 || nTxn > 200000)
+    {
+        nTxn = 0;
+        nMinutes = 0;
+    }
+
     dbenv.txn_checkpoint(0, nMinutes, 0);
 
     CRITICAL_BLOCK(cs_db)
@@ -336,6 +344,7 @@
 bool CTxDB::UpdateTxIndex(uint256 hash, const CTxIndex& txindex)
 {
     assert(!fClient);
+    nTxn++;
     return Write(make_pair(string("tx"), hash), txindex);
 }
 
@@ -346,6 +355,7 @@
     // Add to tx index
     uint256 hash = tx.GetHash();
     CTxIndex txindex(pos, tx.vout.size());
+    nTxn++;
     return Write(make_pair(string("tx"), hash), txindex);
 }