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author | Kim van der Riet <kpvdr@apache.org> | 2013-02-28 16:14:30 +0000 |
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committer | Kim van der Riet <kpvdr@apache.org> | 2013-02-28 16:14:30 +0000 |
commit | 9c73ef7a5ac10acd6a50d5d52bd721fc2faa5919 (patch) | |
tree | 2a890e1df09e5b896a9b4168a7b22648f559a1f2 /cpp/src/qpid/legacystore/jrnl/time_ns.h | |
parent | 172d9b2a16cfb817bbe632d050acba7e31401cd2 (diff) | |
download | qpid-python-9c73ef7a5ac10acd6a50d5d52bd721fc2faa5919.tar.gz |
Update from trunk r1375509 through r1450773asyncstore
git-svn-id: https://svn.apache.org/repos/asf/qpid/branches/asyncstore@1451244 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'cpp/src/qpid/legacystore/jrnl/time_ns.h')
-rw-r--r-- | cpp/src/qpid/legacystore/jrnl/time_ns.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/cpp/src/qpid/legacystore/jrnl/time_ns.h b/cpp/src/qpid/legacystore/jrnl/time_ns.h new file mode 100644 index 0000000000..a9f69e2631 --- /dev/null +++ b/cpp/src/qpid/legacystore/jrnl/time_ns.h @@ -0,0 +1,105 @@ +/* + * + * 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. + * + */ + +/** + * \file time_ns.h + * + * Qpid asynchronous store plugin library + * + * Messaging journal time struct mrg::journal::time_ns, derived from + * the timespec struct and provided with helper functions. + * + * \author Kim van der Riet + */ + +#ifndef QPID_LEGACYSTORE_JRNL_TIME_NS_H +#define QPID_LEGACYSTORE_JRNL_TIME_NS_H + +#include <cerrno> +#include <ctime> +#include <string> + +namespace mrg +{ +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; } +}; + +} // namespace journal +} // namespace mrg + +#endif // ifndef QPID_LEGACYSTORE_JRNL_TIME_NS_H |