1 files changed, 81 insertions, 0 deletions
diff --git a/storage/ndb/src/old_files/client/odbc/handles/PoolNdb.cpp b/storage/ndb/src/old_files/client/odbc/handles/PoolNdb.cpp
new file mode 100644
index 00000000000..45d3c67ec77
--- /dev/null
+++ b/storage/ndb/src/old_files/client/odbc/handles/PoolNdb.cpp
@@ -0,0 +1,81 @@
+/* Copyright (C) 2003 MySQL AB
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+#include <common/common.hpp>
+#include <NdbMutex.h>
+#include <NdbApi.hpp>
+#include "PoolNdb.hpp"
+
+#ifdef NDB_WIN32
+static NdbMutex & ndb_mutex = * NdbMutex_Create();
+#else
+static NdbMutex ndb_mutex = NDB_MUTEX_INITIALIZER;
+#endif
+
+PoolNdb::PoolNdb() :
+    m_cntUsed(0),
+    m_cntFree(0)
+{
+}
+
+PoolNdb::~PoolNdb()
+{
+}
+
+Ndb*
+PoolNdb::allocate(Ctx& ctx, int timeout)
+{
+    NdbMutex_Lock(&ndb_mutex);
+    Ndb* pNdb;
+    if (m_cntFree == 0) {
+	pNdb = new Ndb("TEST_DB");
+	pNdb->useFullyQualifiedNames(true);
+	if (pNdb->init(64) < 0) {
+	    ctx.pushStatus(pNdb, "init");
+	    delete pNdb;
+	    NdbMutex_Unlock(&ndb_mutex);
+	    return 0;
+	}
+	if (pNdb->waitUntilReady(timeout) < 0) {
+	    ctx.pushStatus(Sqlstate::_HYT00, Error::Gen, "connection timeout after %d seconds", timeout);
+	    ctx.pushStatus(pNdb, "waitUntilReady");
+	    delete pNdb;
+	    NdbMutex_Unlock(&ndb_mutex);
+	    return 0;
+	}
+	m_listFree.push_back(pNdb);
+	m_cntFree++;
+    }
+    pNdb = m_listFree.front();
+    m_listFree.pop_front();
+    m_cntFree--;
+    m_cntUsed++;
+    ctx_log1(("alloc Ndb: used=%u free=%u", m_cntUsed, m_cntFree));
+    NdbMutex_Unlock(&ndb_mutex);
+    return pNdb;
+}
+
+void
+PoolNdb::release(Ctx& ctx, Ndb* pNdb)
+{
+    NdbMutex_Lock(&ndb_mutex);
+    m_listUsed.remove(pNdb);
+    m_listFree.push_back(pNdb);
+    m_cntFree++;
+    m_cntUsed--;
+    ctx_log1(("free Ndb: used=%u free=%u", m_cntUsed, m_cntFree));
+    NdbMutex_Unlock(&ndb_mutex);
+}