1 files changed, 88 insertions, 0 deletions
diff --git a/src/base/humanize.time.hh b/src/base/humanize.time.hh
new file mode 100644
index 0000000..96edebd
--- /dev/null
+++ b/src/base/humanize.time.hh
@@ -0,0 +1,88 @@
+/**
+ * Copyright (c) 2021, 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_humanize_time_hh
+#define lnav_humanize_time_hh
+
+#include <string>
+
+#include <sys/time.h>
+
+#include "optional.hpp"
+
+namespace humanize {
+namespace time {
+
+class point {
+public:
+    static point from_tv(const struct timeval& tv);
+
+    point& with_recent_point(const struct timeval& tv)
+    {
+        this->p_recent_point = tv;
+        return *this;
+    }
+
+    point& with_convert_to_local(bool convert_to_local)
+    {
+        this->p_convert_to_local = convert_to_local;
+        return *this;
+    }
+
+    std::string as_time_ago() const;
+
+    std::string as_precise_time_ago() const;
+
+private:
+    explicit point(const struct timeval& tv)
+        : p_past_point{tv.tv_sec, tv.tv_usec}
+    {
+    }
+
+    struct timeval p_past_point;
+    nonstd::optional<struct timeval> p_recent_point;
+    bool p_convert_to_local{false};
+};
+
+class duration {
+public:
+    static duration from_tv(const struct timeval& tv);
+
+    std::string to_string() const;
+
+private:
+    explicit duration(const struct timeval& tv) : d_timeval(tv) {}
+
+    struct timeval d_timeval;
+};
+
+}  // namespace time
+}  // namespace humanize
+
+#endif