Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 295 insertions, 0 deletions

diff --git a/storage/mroonga/lib/mrn_time_converter.cpp b/storage/mroonga/lib/mrn_time_converter.cpp
new file mode 100644
index 00000000..9bb8d89a
--- /dev/null
+++ b/storage/mroonga/lib/mrn_time_converter.cpp
@@ -0,0 +1,295 @@
+/* -*- c-basic-offset: 2 -*- */
+/*
+  Copyright(C) 2010-2013 Kentoku SHIBA
+  Copyright(C) 2011-2015 Kouhei Sutou <kou@clear-code.com>
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1335  USA
+*/
+
+#include "mrn_time_converter.hpp"
+
+#ifdef min
+#  undef min
+#endif
+#ifdef max
+#  undef max
+#endif
+
+#include <limits>
+
+// for debug
+#define MRN_CLASS_NAME "mrn::TimeConverter"
+
+namespace mrn {
+  TimeConverter::TimeConverter() {
+  }
+
+  TimeConverter::~TimeConverter() {
+  }
+
+  time_t TimeConverter::tm_to_time_gm(struct tm *time, bool *truncated) {
+    MRN_DBUG_ENTER_METHOD();
+    *truncated = true;
+    struct tm gmdate;
+    time->tm_yday = -1;
+    time->tm_isdst = -1;
+    time_t sec_t = mktime(time);
+    if (time->tm_yday == -1) {
+      DBUG_RETURN(-1);
+    }
+    if (!gmtime_r(&sec_t, &gmdate)) {
+      DBUG_RETURN(-1);
+    }
+    int32 mrn_utc_diff_in_seconds =
+      (
+        time->tm_mday > 25 && gmdate.tm_mday == 1 ? -1 :
+        time->tm_mday == 1 && gmdate.tm_mday > 25 ? 1 :
+        time->tm_mday - gmdate.tm_mday
+        ) * 24 * 60 * 60 +
+      (time->tm_hour - gmdate.tm_hour) * 60 * 60 +
+      (time->tm_min - gmdate.tm_min) * 60 +
+      (time->tm_sec - gmdate.tm_sec);
+    DBUG_PRINT("info", ("mroonga: time->tm_year=%d", time->tm_year));
+    DBUG_PRINT("info", ("mroonga: time->tm_mon=%d", time->tm_mon));
+    DBUG_PRINT("info", ("mroonga: time->tm_mday=%d", time->tm_mday));
+    DBUG_PRINT("info", ("mroonga: time->tm_hour=%d", time->tm_hour));
+    DBUG_PRINT("info", ("mroonga: time->tm_min=%d", time->tm_min));
+    DBUG_PRINT("info", ("mroonga: time->tm_sec=%d", time->tm_sec));
+    DBUG_PRINT("info", ("mroonga: mrn_utc_diff_in_seconds=%d",
+                        mrn_utc_diff_in_seconds));
+    if (mrn_utc_diff_in_seconds > 0) {
+      if (sec_t > std::numeric_limits<time_t>::max() - mrn_utc_diff_in_seconds) {
+        DBUG_RETURN(-1);
+      }
+    } else {
+      if (sec_t < std::numeric_limits<time_t>::min() - mrn_utc_diff_in_seconds) {
+        DBUG_RETURN(-1);
+      }
+    }
+    *truncated = false;
+    DBUG_RETURN(sec_t + mrn_utc_diff_in_seconds);
+  }
+
+  long long int TimeConverter::tm_to_grn_time(struct tm *time, int usec,
+                                              bool *truncated) {
+    MRN_DBUG_ENTER_METHOD();
+
+    long long int sec = tm_to_time_gm(time, truncated);
+
+    DBUG_PRINT("info", ("mroonga: sec=%lld", sec));
+    DBUG_PRINT("info", ("mroonga: usec=%d", usec));
+
+    long long int grn_time = *truncated ? 0 : GRN_TIME_PACK(sec, usec);
+
+    DBUG_RETURN(grn_time);
+  }
+
+  long long int TimeConverter::mysql_time_to_grn_time(MYSQL_TIME *mysql_time,
+                                                      bool *truncated) {
+    MRN_DBUG_ENTER_METHOD();
+
+    int usec = mysql_time->second_part;
+    long long int grn_time = 0;
+
+    *truncated = false;
+    switch (mysql_time->time_type) {
+    case MYSQL_TIMESTAMP_DATE:
+      {
+        DBUG_PRINT("info", ("mroonga: MYSQL_TIMESTAMP_DATE"));
+        struct tm date;
+        memset(&date, 0, sizeof(struct tm));
+        date.tm_year = mysql_time->year - TM_YEAR_BASE;
+        if (mysql_time->month > 0) {
+          date.tm_mon = mysql_time->month - 1;
+        } else {
+          date.tm_mon = 0;
+          *truncated = true;
+        }
+        if (mysql_time->day > 0) {
+          date.tm_mday = mysql_time->day;
+        } else {
+          date.tm_mday = 1;
+          *truncated = true;
+        }
+        DBUG_PRINT("info", ("mroonga: tm_year=%d", date.tm_year));
+        DBUG_PRINT("info", ("mroonga: tm_mon=%d", date.tm_mon));
+        DBUG_PRINT("info", ("mroonga: tm_mday=%d", date.tm_mday));
+        bool tm_truncated = false;
+        grn_time = tm_to_grn_time(&date, usec, &tm_truncated);
+        if (tm_truncated) {
+          *truncated = true;
+        }
+      }
+      break;
+    case MYSQL_TIMESTAMP_DATETIME:
+      {
+        DBUG_PRINT("info", ("mroonga: MYSQL_TIMESTAMP_DATETIME"));
+        struct tm datetime;
+        memset(&datetime, 0, sizeof(struct tm));
+        datetime.tm_year = mysql_time->year - TM_YEAR_BASE;
+        if (mysql_time->month > 0) {
+          datetime.tm_mon = mysql_time->month - 1;
+        } else {
+          datetime.tm_mon = 0;
+          *truncated = true;
+        }
+        if (mysql_time->day > 0) {
+          datetime.tm_mday = mysql_time->day;
+        } else {
+          datetime.tm_mday = 1;
+          *truncated = true;
+        }
+        datetime.tm_hour = mysql_time->hour;
+        datetime.tm_min = mysql_time->minute;
+        datetime.tm_sec = mysql_time->second;
+        DBUG_PRINT("info", ("mroonga: tm_year=%d", datetime.tm_year));
+        DBUG_PRINT("info", ("mroonga: tm_mon=%d", datetime.tm_mon));
+        DBUG_PRINT("info", ("mroonga: tm_mday=%d", datetime.tm_mday));
+        DBUG_PRINT("info", ("mroonga: tm_hour=%d", datetime.tm_hour));
+        DBUG_PRINT("info", ("mroonga: tm_min=%d", datetime.tm_min));
+        DBUG_PRINT("info", ("mroonga: tm_sec=%d", datetime.tm_sec));
+        bool tm_truncated = false;
+        grn_time = tm_to_grn_time(&datetime, usec, &tm_truncated);
+        if (tm_truncated) {
+          *truncated = true;
+        }
+      }
+      break;
+    case MYSQL_TIMESTAMP_TIME:
+      {
+        DBUG_PRINT("info", ("mroonga: MYSQL_TIMESTAMP_TIME"));
+        int sec =
+          mysql_time->hour * 60 * 60 +
+          mysql_time->minute * 60 +
+          mysql_time->second;
+        DBUG_PRINT("info", ("mroonga: sec=%d", sec));
+        grn_time = GRN_TIME_PACK(sec, usec);
+        if (mysql_time->neg) {
+          grn_time = -grn_time;
+        }
+      }
+      break;
+    default:
+      DBUG_PRINT("info", ("mroonga: default"));
+      grn_time = 0;
+      break;
+    }
+
+    DBUG_RETURN(grn_time);
+  }
+
+  void TimeConverter::grn_time_to_mysql_time(long long int grn_time,
+                                             MYSQL_TIME *mysql_time) {
+    MRN_DBUG_ENTER_METHOD();
+    long long int sec;
+    int usec;
+    GRN_TIME_UNPACK(grn_time, sec, usec);
+    DBUG_PRINT("info", ("mroonga: sec=%lld", sec));
+    DBUG_PRINT("info", ("mroonga: usec=%d", usec));
+    switch (mysql_time->time_type) {
+    case MYSQL_TIMESTAMP_DATE:
+      {
+        DBUG_PRINT("info", ("mroonga: MYSQL_TIMESTAMP_DATE"));
+        struct tm date;
+        time_t sec_t = sec;
+        // TODO: Add error check
+        gmtime_r(&sec_t, &date);
+        DBUG_PRINT("info", ("mroonga: tm_year=%d", date.tm_year));
+        mysql_time->year = date.tm_year + TM_YEAR_BASE;
+        DBUG_PRINT("info", ("mroonga: tm_mon=%d", date.tm_mon));
+        mysql_time->month = date.tm_mon + 1;
+        DBUG_PRINT("info", ("mroonga: tm_mday=%d", date.tm_mday));
+        mysql_time->day = date.tm_mday;
+      }
+      break;
+    case MYSQL_TIMESTAMP_DATETIME:
+      {
+        DBUG_PRINT("info", ("mroonga: MYSQL_TIMESTAMP_DATETIME"));
+        struct tm date;
+        time_t sec_t = sec;
+        // TODO: Add error check
+        gmtime_r(&sec_t, &date);
+        DBUG_PRINT("info", ("mroonga: tm_year=%d", date.tm_year));
+        mysql_time->year = date.tm_year + TM_YEAR_BASE;
+        DBUG_PRINT("info", ("mroonga: tm_mon=%d", date.tm_mon));
+        mysql_time->month = date.tm_mon + 1;
+        DBUG_PRINT("info", ("mroonga: tm_mday=%d", date.tm_mday));
+        mysql_time->day = date.tm_mday;
+        DBUG_PRINT("info", ("mroonga: tm_hour=%d", date.tm_hour));
+        mysql_time->hour = date.tm_hour;
+        DBUG_PRINT("info", ("mroonga: tm_min=%d", date.tm_min));
+        mysql_time->minute = date.tm_min;
+        DBUG_PRINT("info", ("mroonga: tm_sec=%d", date.tm_sec));
+        mysql_time->second = date.tm_sec;
+        mysql_time->second_part = usec;
+      }
+      break;
+    case MYSQL_TIMESTAMP_TIME:
+      DBUG_PRINT("info", ("mroonga: MYSQL_TIMESTAMP_TIME"));
+      if (sec < 0) {
+        mysql_time->neg = true;
+        sec = -sec;
+      }
+      mysql_time->hour = static_cast<unsigned int>(sec / 60 / 60);
+      mysql_time->minute = sec / 60 % 60;
+      mysql_time->second = sec % 60;
+      mysql_time->second_part = usec;
+      break;
+    default:
+      DBUG_PRINT("info", ("mroonga: default"));
+      break;
+    }
+    DBUG_VOID_RETURN;
+  }
+
+  long long int TimeConverter::mysql_datetime_to_grn_time(long long int mysql_datetime,
+                                                          bool *truncated) {
+    MRN_DBUG_ENTER_METHOD();
+
+    MYSQL_TIME mysql_time;
+    mysql_time.time_type   = MYSQL_TIMESTAMP_DATETIME;
+    mysql_time.neg         = 0;
+    mysql_time.second_part = 0;
+    mysql_time.second      = (mysql_datetime % 100);
+    mysql_time.minute      = (mysql_datetime / 100 % 100);
+    mysql_time.hour        = (mysql_datetime / 10000 % 100);
+    mysql_time.day         = (mysql_datetime / 1000000 % 100);
+    mysql_time.month       = (mysql_datetime / 100000000 % 100);
+    mysql_time.year        = (mysql_datetime / 10000000000LL % 10000);
+
+    long long int grn_time = mysql_time_to_grn_time(&mysql_time, truncated);
+
+    DBUG_RETURN(grn_time);
+  }
+
+  long long int TimeConverter::grn_time_to_mysql_datetime(long long int grn_time) {
+    MRN_DBUG_ENTER_METHOD();
+
+    MYSQL_TIME mysql_time;
+    mysql_time.time_type = MYSQL_TIMESTAMP_DATETIME;
+
+    grn_time_to_mysql_time(grn_time, &mysql_time);
+
+    long long int mysql_datetime =
+      (mysql_time.second *           1) +
+      (mysql_time.minute *         100) +
+      (mysql_time.hour   *       10000) +
+      (mysql_time.day    *     1000000) +
+      (mysql_time.month  *   100000000) +
+      (mysql_time.year   * 10000000000LL);
+
+    DBUG_RETURN(mysql_datetime);
+  }
+}