--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+#ifndef CEPH_UTIME_H
+#define CEPH_UTIME_H
+
+#include <math.h>
+#include <sys/time.h>
+#include <time.h>
+#include <errno.h>
+
+#include "include/types.h"
+#include "include/timegm.h"
+#include "common/strtol.h"
+#include "common/ceph_time.h"
+#include "include/denc.h"
+
+
+// --------
+// utime_t
+
+/* WARNING: If add member in utime_t, please make sure the encode/decode funtion
+ * work well. For little-endian machine, we should make sure there is no padding
+ * in 32-bit machine and 64-bit machine.
+ * You should also modify the padding_check function.
+ */
+class utime_t {
+public:
+ struct {
+ __u32 tv_sec, tv_nsec;
+ } tv;
+
+ public:
+ bool is_zero() const {
+ return (tv.tv_sec == 0) && (tv.tv_nsec == 0);
+ }
+ void normalize() {
+ if (tv.tv_nsec > 1000000000ul) {
+ tv.tv_sec += tv.tv_nsec / (1000000000ul);
+ tv.tv_nsec %= 1000000000ul;
+ }
+ }
+
+ // cons
+ utime_t() { tv.tv_sec = 0; tv.tv_nsec = 0; }
+ utime_t(time_t s, int n) { tv.tv_sec = s; tv.tv_nsec = n; normalize(); }
+ utime_t(const struct ceph_timespec &v) {
+ decode_timeval(&v);
+ }
+ utime_t(const struct timespec v)
+ {
+ tv.tv_sec = v.tv_sec;
+ tv.tv_nsec = v.tv_nsec;
+ }
+ explicit utime_t(const ceph::real_time& rt) {
+ ceph_timespec ts = real_clock::to_ceph_timespec(rt);
+ decode_timeval(&ts);
+ }
+ utime_t(const struct timeval &v) {
+ set_from_timeval(&v);
+ }
+ utime_t(const struct timeval *v) {
+ set_from_timeval(v);
+ }
+ void to_timespec(struct timespec *ts) const {
+ ts->tv_sec = tv.tv_sec;
+ ts->tv_nsec = tv.tv_nsec;
+ }
+ void set_from_double(double d) {
+ tv.tv_sec = (__u32)trunc(d);
+ tv.tv_nsec = (__u32)((d - (double)tv.tv_sec) * (double)1000000000.0);
+ }
+
+ real_time to_real_time() const {
+ ceph_timespec ts;
+ encode_timeval(&ts);
+ return ceph::real_clock::from_ceph_timespec(ts);
+ }
+
+ // accessors
+ time_t sec() const { return tv.tv_sec; }
+ long usec() const { return tv.tv_nsec/1000; }
+ int nsec() const { return tv.tv_nsec; }
+
+ // ref accessors/modifiers
+ __u32& sec_ref() { return tv.tv_sec; }
+ __u32& nsec_ref() { return tv.tv_nsec; }
+
+ uint64_t to_nsec() const {
+ return (uint64_t)tv.tv_nsec + (uint64_t)tv.tv_sec * 1000000000ull;
+ }
+ uint64_t to_msec() const {
+ return (uint64_t)tv.tv_nsec / 1000000ull + (uint64_t)tv.tv_sec * 1000ull;
+ }
+
+ void copy_to_timeval(struct timeval *v) const {
+ v->tv_sec = tv.tv_sec;
+ v->tv_usec = tv.tv_nsec/1000;
+ }
+ void set_from_timeval(const struct timeval *v) {
+ tv.tv_sec = v->tv_sec;
+ tv.tv_nsec = v->tv_usec*1000;
+ }
+ void padding_check() {
+ static_assert(
+ sizeof(utime_t) ==
+ sizeof(tv.tv_sec) +
+ sizeof(tv.tv_nsec)
+ ,
+ "utime_t have padding");
+ }
+ void encode(bufferlist &bl) const {
+#if defined(CEPH_LITTLE_ENDIAN)
+ bl.append((char *)(this), sizeof(__u32) + sizeof(__u32));
+#else
+ ::encode(tv.tv_sec, bl);
+ ::encode(tv.tv_nsec, bl);
+#endif
+ }
+ void decode(bufferlist::iterator &p) {
+#if defined(CEPH_LITTLE_ENDIAN)
+ p.copy(sizeof(__u32) + sizeof(__u32), (char *)(this));
+#else
+ ::decode(tv.tv_sec, p);
+ ::decode(tv.tv_nsec, p);
+#endif
+ }
+
+ DENC(utime_t, v, p) {
+ denc(v.tv.tv_sec, p);
+ denc(v.tv.tv_nsec, p);
+ }
+
+
+ void encode_timeval(struct ceph_timespec *t) const {
+ t->tv_sec = tv.tv_sec;
+ t->tv_nsec = tv.tv_nsec;
+ }
+ void decode_timeval(const struct ceph_timespec *t) {
+ tv.tv_sec = t->tv_sec;
+ tv.tv_nsec = t->tv_nsec;
+ }
+
+ utime_t round_to_minute() {
+ struct tm bdt;
+ time_t tt = sec();
+ localtime_r(&tt, &bdt);
+ bdt.tm_sec = 0;
+ tt = mktime(&bdt);
+ return utime_t(tt, 0);
+ }
+
+ utime_t round_to_hour() {
+ struct tm bdt;
+ time_t tt = sec();
+ localtime_r(&tt, &bdt);
+ bdt.tm_sec = 0;
+ bdt.tm_min = 0;
+ tt = mktime(&bdt);
+ return utime_t(tt, 0);
+ }
+
+ // cast to double
+ operator double() const {
+ return (double)sec() + ((double)nsec() / 1000000000.0L);
+ }
+ operator ceph_timespec() const {
+ ceph_timespec ts;
+ ts.tv_sec = sec();
+ ts.tv_nsec = nsec();
+ return ts;
+ }
+
+ void sleep() const {
+ struct timespec ts;
+ to_timespec(&ts);
+ nanosleep(&ts, NULL);
+ }
+
+ // output
+ ostream& gmtime(ostream& out) const {
+ out.setf(std::ios::right);
+ char oldfill = out.fill();
+ out.fill('0');
+ if (sec() < ((time_t)(60*60*24*365*10))) {
+ // raw seconds. this looks like a relative time.
+ out << (long)sec() << "." << std::setw(6) << usec();
+ } else {
+ // localtime. this looks like an absolute time.
+ // aim for http://en.wikipedia.org/wiki/ISO_8601
+ struct tm bdt;
+ time_t tt = sec();
+ gmtime_r(&tt, &bdt);
+ out << std::setw(4) << (bdt.tm_year+1900) // 2007 -> '07'
+ << '-' << std::setw(2) << (bdt.tm_mon+1)
+ << '-' << std::setw(2) << bdt.tm_mday
+ << ' '
+ << std::setw(2) << bdt.tm_hour
+ << ':' << std::setw(2) << bdt.tm_min
+ << ':' << std::setw(2) << bdt.tm_sec;
+ out << "." << std::setw(6) << usec();
+ out << "Z";
+ }
+ out.fill(oldfill);
+ out.unsetf(std::ios::right);
+ return out;
+ }
+
+ // output
+ ostream& gmtime_nsec(ostream& out) const {
+ out.setf(std::ios::right);
+ char oldfill = out.fill();
+ out.fill('0');
+ if (sec() < ((time_t)(60*60*24*365*10))) {
+ // raw seconds. this looks like a relative time.
+ out << (long)sec() << "." << std::setw(6) << usec();
+ } else {
+ // localtime. this looks like an absolute time.
+ // aim for http://en.wikipedia.org/wiki/ISO_8601
+ struct tm bdt;
+ time_t tt = sec();
+ gmtime_r(&tt, &bdt);
+ out << std::setw(4) << (bdt.tm_year+1900) // 2007 -> '07'
+ << '-' << std::setw(2) << (bdt.tm_mon+1)
+ << '-' << std::setw(2) << bdt.tm_mday
+ << ' '
+ << std::setw(2) << bdt.tm_hour
+ << ':' << std::setw(2) << bdt.tm_min
+ << ':' << std::setw(2) << bdt.tm_sec;
+ out << "." << std::setw(9) << nsec();
+ out << "Z";
+ }
+ out.fill(oldfill);
+ out.unsetf(std::ios::right);
+ return out;
+ }
+
+ // output
+ ostream& asctime(ostream& out) const {
+ out.setf(std::ios::right);
+ char oldfill = out.fill();
+ out.fill('0');
+ if (sec() < ((time_t)(60*60*24*365*10))) {
+ // raw seconds. this looks like a relative time.
+ out << (long)sec() << "." << std::setw(6) << usec();
+ } else {
+ // localtime. this looks like an absolute time.
+ // aim for http://en.wikipedia.org/wiki/ISO_8601
+ struct tm bdt;
+ time_t tt = sec();
+ gmtime_r(&tt, &bdt);
+
+ char buf[128];
+ asctime_r(&bdt, buf);
+ int len = strlen(buf);
+ if (buf[len - 1] == '\n')
+ buf[len - 1] = '\0';
+ out << buf;
+ }
+ out.fill(oldfill);
+ out.unsetf(std::ios::right);
+ return out;
+ }
+
+ ostream& localtime(ostream& out) const {
+ out.setf(std::ios::right);
+ char oldfill = out.fill();
+ out.fill('0');
+ if (sec() < ((time_t)(60*60*24*365*10))) {
+ // raw seconds. this looks like a relative time.
+ out << (long)sec() << "." << std::setw(6) << usec();
+ } else {
+ // localtime. this looks like an absolute time.
+ // aim for http://en.wikipedia.org/wiki/ISO_8601
+ struct tm bdt;
+ time_t tt = sec();
+ localtime_r(&tt, &bdt);
+ out << std::setw(4) << (bdt.tm_year+1900) // 2007 -> '07'
+ << '-' << std::setw(2) << (bdt.tm_mon+1)
+ << '-' << std::setw(2) << bdt.tm_mday
+ << ' '
+ << std::setw(2) << bdt.tm_hour
+ << ':' << std::setw(2) << bdt.tm_min
+ << ':' << std::setw(2) << bdt.tm_sec;
+ out << "." << std::setw(6) << usec();
+ //out << '_' << bdt.tm_zone;
+ }
+ out.fill(oldfill);
+ out.unsetf(std::ios::right);
+ return out;
+ }
+
+ int sprintf(char *out, int outlen) const {
+ struct tm bdt;
+ time_t tt = sec();
+ localtime_r(&tt, &bdt);
+
+ return ::snprintf(out, outlen,
+ "%04d-%02d-%02d %02d:%02d:%02d.%06ld",
+ bdt.tm_year + 1900, bdt.tm_mon + 1, bdt.tm_mday,
+ bdt.tm_hour, bdt.tm_min, bdt.tm_sec, usec());
+ }
+
+ static int snprintf(char *out, int outlen, time_t tt) {
+ struct tm bdt;
+ localtime_r(&tt, &bdt);
+
+ return ::snprintf(out, outlen,
+ "%04d-%02d-%02d %02d:%02d:%02d",
+ bdt.tm_year + 1900, bdt.tm_mon + 1, bdt.tm_mday,
+ bdt.tm_hour, bdt.tm_min, bdt.tm_sec);
+ }
+
+ static int parse_date(const string& date, uint64_t *epoch, uint64_t *nsec,
+ string *out_date=NULL, string *out_time=NULL) {
+ struct tm tm;
+ memset(&tm, 0, sizeof(tm));
+
+ if (nsec)
+ *nsec = 0;
+
+ const char *p = strptime(date.c_str(), "%Y-%m-%d", &tm);
+ if (p) {
+ if (*p == ' ') {
+ p++;
+ p = strptime(p, " %H:%M:%S", &tm);
+ if (!p)
+ return -EINVAL;
+ if (nsec && *p == '.') {
+ ++p;
+ unsigned i;
+ char buf[10]; /* 9 digit + null termination */
+ for (i = 0; (i < sizeof(buf) - 1) && isdigit(*p); ++i, ++p) {
+ buf[i] = *p;
+ }
+ for (; i < sizeof(buf) - 1; ++i) {
+ buf[i] = '0';
+ }
+ buf[i] = '\0';
+ string err;
+ *nsec = (uint64_t)strict_strtol(buf, 10, &err);
+ if (!err.empty()) {
+ return -EINVAL;
+ }
+ }
+ }
+ } else {
+ int sec, usec;
+ int r = sscanf(date.c_str(), "%d.%d", &sec, &usec);
+ if (r != 2) {
+ return -EINVAL;
+ }
+
+ time_t tt = sec;
+ gmtime_r(&tt, &tm);
+
+ if (nsec) {
+ *nsec = (uint64_t)usec * 1000;
+ }
+ }
+ time_t t = internal_timegm(&tm);
+ if (epoch)
+ *epoch = (uint64_t)t;
+
+ if (out_date) {
+ char buf[32];
+ strftime(buf, sizeof(buf), "%F", &tm);
+ *out_date = buf;
+ }
+ if (out_time) {
+ char buf[32];
+ strftime(buf, sizeof(buf), "%T", &tm);
+ *out_time = buf;
+ }
+
+ return 0;
+ }
+};
+WRITE_CLASS_ENCODER(utime_t)
+WRITE_CLASS_DENC(utime_t)
+
+
+// arithmetic operators
+inline utime_t operator+(const utime_t& l, const utime_t& r) {
+ return utime_t( l.sec() + r.sec() + (l.nsec()+r.nsec())/1000000000L,
+ (l.nsec()+r.nsec())%1000000000L );
+}
+inline utime_t& operator+=(utime_t& l, const utime_t& r) {
+ l.sec_ref() += r.sec() + (l.nsec()+r.nsec())/1000000000L;
+ l.nsec_ref() += r.nsec();
+ l.nsec_ref() %= 1000000000L;
+ return l;
+}
+inline utime_t& operator+=(utime_t& l, double f) {
+ double fs = trunc(f);
+ double ns = (f - fs) * (double)1000000000.0;
+ l.sec_ref() += (long)fs;
+ l.nsec_ref() += (long)ns;
+ l.normalize();
+ return l;
+}
+
+inline utime_t operator-(const utime_t& l, const utime_t& r) {
+ return utime_t( l.sec() - r.sec() - (l.nsec()<r.nsec() ? 1:0),
+ l.nsec() - r.nsec() + (l.nsec()<r.nsec() ? 1000000000:0) );
+}
+inline utime_t& operator-=(utime_t& l, const utime_t& r) {
+ l.sec_ref() -= r.sec();
+ if (l.nsec() >= r.nsec())
+ l.nsec_ref() -= r.nsec();
+ else {
+ l.nsec_ref() += 1000000000L - r.nsec();
+ l.sec_ref()--;
+ }
+ return l;
+}
+inline utime_t& operator-=(utime_t& l, double f) {
+ double fs = trunc(f);
+ double ns = (f - fs) * (double)1000000000.0;
+ l.sec_ref() -= (long)fs;
+ long nsl = (long)ns;
+ if (nsl) {
+ l.sec_ref()--;
+ l.nsec_ref() = 1000000000L + l.nsec_ref() - nsl;
+ }
+ l.normalize();
+ return l;
+}
+
+
+// comparators
+inline bool operator>(const utime_t& a, const utime_t& b)
+{
+ return (a.sec() > b.sec()) || (a.sec() == b.sec() && a.nsec() > b.nsec());
+}
+inline bool operator<=(const utime_t& a, const utime_t& b)
+{
+ return !(operator>(a, b));
+}
+inline bool operator<(const utime_t& a, const utime_t& b)
+{
+ return (a.sec() < b.sec()) || (a.sec() == b.sec() && a.nsec() < b.nsec());
+}
+inline bool operator>=(const utime_t& a, const utime_t& b)
+{
+ return !(operator<(a, b));
+}
+
+inline bool operator==(const utime_t& a, const utime_t& b)
+{
+ return a.sec() == b.sec() && a.nsec() == b.nsec();
+}
+inline bool operator!=(const utime_t& a, const utime_t& b)
+{
+ return a.sec() != b.sec() || a.nsec() != b.nsec();
+}
+
+
+// output
+
+// ostream
+inline std::ostream& operator<<(std::ostream& out, const utime_t& t)
+{
+ return t.localtime(out);
+}
+
+#endif
Code Review / stor4nfv.git / blobdiff