Share DB object between modules

1 files changed, 24 insertions, 0 deletions

diff --git a/brep/shared-database b/brep/shared-database
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+++ b/brep/shared-database
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+// file      : brep/shared-database -*- C++ -*-
+// copyright : Copyright (c) 2014-2015 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+#ifndef BREP_SHARED_DATABASE
+#define BREP_SHARED_DATABASE
+
+#include <string>
+#include <memory> // shared_ptr
+
+#include <odb/forward.hxx> // database
+
+namespace brep
+{
+  // Returns pointer to the shared database instance, creating one on the
+  // first call. On subsequent calls ensures passed host and port equals
+  // to ones of the shared database instance throwing runtime_error otherwise.
+  // Is not thread-safe.
+  //
+  std::shared_ptr<odb::core::database>
+  shared_database (const std::string& host, unsigned int port);
+}
+
+#endif // BREP_SHARED_DATABASE