MySQL 8.0.31
Source Code Documentation
my_time_t.h
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1/* Copyright (c) 2021, 2022, Oracle and/or its affiliates.
2
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5 as published by the Free Software Foundation.
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7 This program is also distributed with certain software (including
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12 separately licensed software that they have included with MySQL.
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15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License, version 2.0, for more details.
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21 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
22
23#ifndef MY_TIME_T_INCLUDED
24#define MY_TIME_T_INCLUDED
25/**
26 Portable time_t replacement. Should be signed and hold seconds for
27 1970-01-01 00:00:00 -- 3001-01-18 23:59:59 on an OS with 64 bits time_t.
28 On OSes with 32 bits time_t, the values will be constrained further.
29*/
30#ifdef __cplusplus
31using my_time_t = int64_t;
32#else
33typedef my_time_t int64_t;
34#endif
35
36/**
37 Replacement of system's struct timeval to ensure we can carry 64 bit values
38 even on a platform which has 64 bits time, but only 32 bits tv_sec member,
39 notably Windows. We do use the system timeval when interfacing the C API
40 calls, though, so in a few cases, e.g. by THD::{start_time, user_time},
41 we need to convert between representations but mostly the struct is only used
42 internally by MySQL so we can use our own.
43*/
44struct my_timeval {
45 int64_t m_tv_sec;
46 int64_t m_tv_usec;
47};
48
49#endif /* MY_TIME_T_INCLUDED */
int64_t my_time_t
Portable time_t replacement.
Definition: my_time_t.h:31
Replacement of system's struct timeval to ensure we can carry 64 bit values even on a platform which ...
Definition: my_time_t.h:44
int64_t m_tv_sec
Definition: my_time_t.h:45
int64_t m_tv_usec
Definition: my_time_t.h:46