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Run BDB disk-less for test_bitcoin

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This commit is contained in:
Luke Dashjr
2012-05-22 19:51:13 +00:00
parent fbf99a9cdc
commit 148e107da6
3 changed files with 60 additions and 4 deletions
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53
src/db.cpp
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@@ -42,7 +42,8 @@ void CDBEnv::EnvShutdown()
{
printf("EnvShutdown exception: %s (%d)\n", e.what(), e.get_errno());
}
DbEnv(0).remove(GetDataDir().string().c_str(), 0);
if (!fMockDb)
DbEnv(0).remove(GetDataDir().string().c_str(), 0);
}
CDBEnv::CDBEnv() : dbenv(0)
@@ -103,12 +104,48 @@ bool CDBEnv::Open(boost::filesystem::path pathEnv_)
return error("CDB() : error %d opening database environment", ret);
fDbEnvInit = true;
fMockDb = false;
return true;
}
void CDBEnv::MakeMock()
{
if (fDbEnvInit)
throw runtime_error("CDBEnv::MakeMock(): already initialized");
if (fShutdown)
throw runtime_error("CDBEnv::MakeMock(): during shutdown");
printf("CDBEnv::MakeMock()\n");
dbenv.set_cachesize(1, 0, 1);
dbenv.set_lg_bsize(10485760*4);
dbenv.set_lg_max(10485760);
dbenv.set_lk_max_locks(10000);
dbenv.set_lk_max_objects(10000);
dbenv.set_flags(DB_AUTO_COMMIT, 1);
dbenv.log_set_config(DB_LOG_IN_MEMORY, 1);
int ret = dbenv.open(NULL,
DB_CREATE |
DB_INIT_LOCK |
DB_INIT_LOG |
DB_INIT_MPOOL |
DB_INIT_TXN |
DB_THREAD |
DB_PRIVATE,
S_IRUSR | S_IWUSR);
if (ret > 0)
throw runtime_error(strprintf("CDBEnv::MakeMock(): error %d opening database environment", ret));
fDbEnvInit = true;
fMockDb = true;
}
void CDBEnv::CheckpointLSN(std::string strFile)
{
dbenv.txn_checkpoint(0, 0, 0);
if (fMockDb)
return;
dbenv.lsn_reset(strFile.c_str(), 0);
}
@@ -138,8 +175,17 @@ CDB::CDB(const char *pszFile, const char* pszMode) :
{
pdb = new Db(&bitdb.dbenv, 0);
bool fMockDb = bitdb.IsMock();
if (fMockDb)
{
DbMpoolFile*mpf = pdb->get_mpf();
ret = mpf->set_flags(DB_MPOOL_NOFILE, 1);
if (ret != 0)
throw runtime_error(strprintf("CDB() : failed to configure for no temp file backing for database %s", pszFile));
}
ret = pdb->open(NULL, // Txn pointer
pszFile, // Filename
fMockDb ? NULL : pszFile, // Filename
"main", // Logical db name
DB_BTREE, // Database type
nFlags, // Flags
@@ -337,7 +383,8 @@ void CDBEnv::Flush(bool fShutdown)
dbenv.txn_checkpoint(0, 0, 0);
if (!IsChainFile(strFile) || fDetachDB) {
printf("%s detach\n", strFile.c_str());
dbenv.lsn_reset(strFile.c_str(), 0);
if (!fMockDb)
dbenv.lsn_reset(strFile.c_str(), 0);
}
printf("%s closed\n", strFile.c_str());
mapFileUseCount.erase(mi++);