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diff --git a/src/top_status_source.hh b/src/top_status_source.hh
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+/**
+ * Copyright (c) 2007-2012, Timothy Stack
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * * Neither the name of Timothy Stack nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef lnav_top_status_source_hh
+#define lnav_top_status_source_hh
+
+#include <string>
+
+#include <sqlite3.h>
+
+#include "base/injector.hh"
+#include "bound_tags.hh"
+#include "listview_curses.hh"
+#include "sql_util.hh"
+#include "sqlitepp.client.hh"
+#include "statusview_curses.hh"
+#include "top_status_source.cfg.hh"
+
+class top_status_source : public status_data_source {
+public:
+    enum field_t {
+        TSF_TIME,
+        TSF_USER_MSG,
+
+        TSF__MAX
+    };
+
+    explicit top_status_source(auto_sqlite3& db,
+                               const top_status_source_cfg& cfg);
+
+    using injectable
+        = top_status_source(auto_sqlite3& db, const top_status_source_cfg& cfg);
+
+    size_t statusview_fields() override { return TSF__MAX; }
+
+    status_field& statusview_value_for_field(int field) override
+    {
+        return this->tss_fields[field];
+    }
+
+    void update_time(const struct timeval& current_time);
+
+    void update_time();
+
+    void update_user_msg();
+
+private:
+    const top_status_source_cfg& tss_config;
+    status_field tss_fields[TSF__MAX];
+    prepared_stmt tss_user_msgs_stmt;
+};
+
+#endif