1 files changed, 92 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/linearstore/journal/time_ns.h b/qpid/cpp/src/qpid/linearstore/journal/time_ns.h
new file mode 100644
index 0000000000..a228d47475
--- /dev/null
+++ b/qpid/cpp/src/qpid/linearstore/journal/time_ns.h
@@ -0,0 +1,92 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+#ifndef QPID_LINEARSTORE_JOURNAL_TIME_NS_H
+#define QPID_LINEARSTORE_JOURNAL_TIME_NS_H
+
+#include <cerrno>
+#include <ctime>
+#include <string>
+
+namespace qpid {
+namespace linearstore {
+namespace journal {
+
+struct time_ns : public timespec
+{
+    inline time_ns() { tv_sec = 0; tv_nsec = 0; }
+    inline time_ns(const std::time_t sec, const long nsec = 0) { tv_sec = sec; tv_nsec = nsec; }
+    inline time_ns(const time_ns& t) { tv_sec = t.tv_sec; tv_nsec = t.tv_nsec; }
+
+    inline void set_zero() { tv_sec = 0; tv_nsec = 0; }
+    inline bool is_zero() const { return tv_sec == 0 && tv_nsec == 0; }
+    inline int now() { if(::clock_gettime(CLOCK_REALTIME, this)) return errno; return 0; }
+    const std::string str(int precision = 6) const;
+
+    inline time_ns& operator=(const time_ns& rhs)
+        { tv_sec = rhs.tv_sec; tv_nsec = rhs.tv_nsec; return *this; }
+    inline time_ns& operator+=(const time_ns& rhs)
+    {
+        tv_nsec += rhs.tv_nsec;
+        if (tv_nsec >= 1000000000L) { tv_sec++; tv_nsec -= 1000000000L; }
+        tv_sec += rhs.tv_sec;
+        return *this;
+    }
+    inline time_ns& operator+=(const long ns)
+    {
+        tv_nsec += ns;
+        if (tv_nsec >= 1000000000L) { tv_sec++; tv_nsec -= 1000000000L; }
+        return *this;
+    }
+    inline time_ns& operator-=(const long ns)
+    {
+        tv_nsec -= ns;
+        if (tv_nsec < 0) { tv_sec--; tv_nsec += 1000000000L; }
+        return *this;
+    }
+    inline time_ns& operator-=(const time_ns& rhs)
+    {
+        tv_nsec -= rhs.tv_nsec;
+        if (tv_nsec < 0) { tv_sec--; tv_nsec += 1000000000L; }
+        tv_sec -= rhs.tv_sec;
+        return *this;
+    }
+    inline const time_ns operator+(const time_ns& rhs)
+        { time_ns t(*this); t += rhs; return t; }
+    inline const time_ns operator-(const time_ns& rhs)
+        { time_ns t(*this); t -= rhs; return t; }
+    inline bool operator==(const time_ns& rhs)
+       { return tv_sec == rhs.tv_sec && tv_nsec == rhs.tv_nsec; }
+    inline bool operator!=(const time_ns& rhs)
+       { return tv_sec != rhs.tv_sec || tv_nsec != rhs.tv_nsec; }
+    inline bool operator>(const time_ns& rhs)
+       { if(tv_sec == rhs.tv_sec) return tv_nsec > rhs.tv_nsec; return tv_sec > rhs.tv_sec; }
+    inline bool operator>=(const time_ns& rhs)
+       { if(tv_sec == rhs.tv_sec) return tv_nsec >= rhs.tv_nsec; return tv_sec >= rhs.tv_sec; }
+    inline bool operator<(const time_ns& rhs)
+       { if(tv_sec == rhs.tv_sec) return tv_nsec < rhs.tv_nsec; return tv_sec < rhs.tv_sec; }
+    inline bool operator<=(const time_ns& rhs)
+       { if(tv_sec == rhs.tv_sec) return tv_nsec <= rhs.tv_nsec; return tv_sec <= rhs.tv_sec; }
+};
+
+}}}
+
+#endif // ifndef QPID_LINEARSTORE_JOURNAL_TIME_NS_H