Turn libodb-pgsql repository into package for muti-package repositorylibodb-pgsql

1 files changed, 63 insertions, 0 deletions

diff --git a/libodb-pgsql/odb/pgsql/statements-base.hxx b/libodb-pgsql/odb/pgsql/statements-base.hxx
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+++ b/libodb-pgsql/odb/pgsql/statements-base.hxx
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+// file      : odb/pgsql/statements-base.hxx
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_PGSQL_STATEMENTS_BASE_HXX
+#define ODB_PGSQL_STATEMENTS_BASE_HXX
+
+#include <odb/pre.hxx>
+
+#include <odb/schema-version.hxx>
+#include <odb/details/shared-ptr.hxx>
+
+#include <odb/pgsql/version.hxx>
+#include <odb/pgsql/connection.hxx>
+#include <odb/pgsql/database.hxx>
+
+#include <odb/pgsql/details/export.hxx>
+
+namespace odb
+{
+  namespace pgsql
+  {
+    class LIBODB_PGSQL_EXPORT statements_base: public details::shared_base
+    {
+    public:
+      typedef pgsql::connection connection_type;
+
+      connection_type&
+      connection ()
+      {
+        return conn_;
+      }
+
+      // Schema version. database::schema_version_migration() is thread-
+      // safe which means it is also slow. Cache the result in statements
+      // so we can avoid the mutex lock. This is thread-safe since if the
+      // version is updated, then the statements cache will be expired.
+      //
+      const schema_version_migration&
+      version_migration (const char* name = "") const
+      {
+        if (svm_ == 0)
+          svm_ = &conn_.database ().schema_version_migration (name);
+
+        return *svm_;
+      }
+
+    public:
+      virtual
+      ~statements_base ();
+
+    protected:
+      statements_base (connection_type& conn): conn_ (conn), svm_ (0) {}
+
+    protected:
+      connection_type& conn_;
+      mutable const schema_version_migration* svm_;
+    };
+  }
+}
+
+#include <odb/post.hxx>
+
+#endif // ODB_PGSQL_STATEMENTS_BASE_HXX