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Move background hashed object writes to their own DB connection.

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This commit is contained in:
JoelKatz
2013-04-18 17:31:06 -07:00
parent fbaee6e323
commit e296a81c83
3 changed files with 43 additions and 11 deletions
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35
src/cpp/database/SqliteDatabase.cpp
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@@ -19,6 +19,7 @@ using namespace std;
SqliteDatabase::SqliteDatabase(const char* host) : Database(host,"",""), mWalQ(NULL), walRunning(false)
{
mConnection = NULL;
mAuxConnection = NULL;
mCurrentStmt = NULL;
}
@@ -33,10 +34,32 @@ void SqliteDatabase::connect()
}
}
sqlite3* SqliteDatabase::getAuxConnection()
{
boost::mutex::scoped_lock sl(walMutex);
if (mAuxConnection == NULL)
{
int rc = sqlite3_open(mHost.c_str(), &mAuxConnection);
if (rc)
{
cLog(lsFATAL) << "Can't aux open " << mHost << " " << rc;
assert((rc != SQLITE_BUSY) && (rc != SQLITE_LOCKED));
if (mAuxConnection != NULL)
{
sqlite3_close(mConnection);
mAuxConnection = NULL;
}
}
}
return mAuxConnection;
}
void SqliteDatabase::disconnect()
{
sqlite3_finalize(mCurrentStmt);
sqlite3_close(mConnection);
if (mAuxConnection != NULL)
sqlite3_close(mAuxConnection);
}
// returns true if the query went ok
@@ -256,18 +279,22 @@ void SqliteDatabase::runWal()
}
}
SqliteStatement::SqliteStatement(SqliteDatabase* db, const char *sql)
SqliteStatement::SqliteStatement(SqliteDatabase* db, const char *sql, bool aux)
{
assert(db);
int j = sqlite3_prepare_v2(db->peekConnection(), sql, strlen(sql) + 1, &statement, NULL);
sqlite3* conn = aux ? db->getAuxConnection() : db->peekConnection();
int j = sqlite3_prepare_v2(conn, sql, strlen(sql) + 1, &statement, NULL);
if (j != SQLITE_OK)
throw j;
}
SqliteStatement::SqliteStatement(SqliteDatabase* db, const std::string& sql)
SqliteStatement::SqliteStatement(SqliteDatabase* db, const std::string& sql, bool aux)
{
assert(db);
int j = sqlite3_prepare_v2(db->peekConnection(), sql.c_str(), sql.size() + 1, &statement, NULL);
sqlite3* conn = aux ? db->getAuxConnection() : db->peekConnection();
int j = sqlite3_prepare_v2(conn, sql.c_str(), sql.size() + 1, &statement, NULL);
if (j != SQLITE_OK)
throw j;
}