Commit graph

34 commits

Author SHA1 Message Date
Timothy Flynn
bb9db5937a AK: Add Time.h helper to compute the number of days since epoch 2022-01-05 20:05:12 +01:00
Timothy Flynn
0c75a14b4f AK: Move TimeSpecType concept inside the AK namespace
This is just to allow removing the 'clang-format off' directive. This
concept is only used within this header, so it doesn't need to be in the
global namespace.
2022-01-05 20:05:12 +01:00
Andrew Kaster
2b16ee742e AK: Avoid implicit conversion clang-tidy warnings in AK::Time 2021-11-14 22:52:35 +01:00
Andrew Kaster
22feb9d47b AK: Resolve clang-tidy readability-bool-conversion warnings
... In files included by Kernel/Process.cpp and Kernel/Thread.cpp
2021-11-14 22:52:35 +01:00
Idan Horowitz
95bc8e4641 LibCore: Make DateTime's members signed
Core::DateTime is essentially a C++ wrapper of the tm struct, so we
should support the same signed range as the underlying tm.
2021-08-19 19:15:00 +01:00
Brian Gianforcaro
a2a5cb0f24 AK: Add Time::is_negative() to detect negative time values 2021-08-15 12:20:38 +02:00
Brian Gianforcaro
3cbc2364a8 AK: Annotate AK::Time APIs as [[nodiscard]] 2021-08-15 12:20:38 +02:00
Brian Gianforcaro
dae17ce7e3 AK: Add Time::now_<clock_id> functions for obtaining the current time
In the quest of removing as timespec / timeval usage in the Userland as
possible, we need a way to conveniently retrieving the current clock
time from the kernel and storing it in `AK::Time` format.
2021-08-15 12:20:38 +02:00
Brian Gianforcaro
2dd6d2121a AK: Mark Time::max() / Time::min() / Time::zero() as constexpr
No reason for these static helper functions to not be constexpr.
2021-08-03 18:44:01 +02:00
Gunnar Beutner
bcf5e5ee5a AK: Disable clang-format for AK/Time.h
clang-format >=12 format this file incorrectly/differently.
2021-07-22 08:57:01 +02:00
Brian Gianforcaro
a2a5af9745 AK: Restrict timespec comparison operator overloads in AK::Time
The previous implementation was too generic, and would cause conflicting
operator overload errors when included in certain code paths. Fix this
by restricting the template parameters to types which have the same
member names as `struct timespec`.
2021-07-17 17:39:12 +04:30
Brian Gianforcaro
1682f0b760 Everything: Move to SPDX license identifiers in all files.
SPDX License Identifiers are a more compact / standardized
way of representing file license information.

See: https://spdx.dev/resources/use/#identifiers

This was done with the `ambr` search and replace tool.

 ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
2021-04-22 11:22:27 +02:00
Ben Wiederhake
81079ae616 AK: Fix some overflows/underflows that weren't properly handled
Based on #5699. Closes #5699.
2021-03-13 10:17:28 +01:00
Tom
183b2e71ba AK: Take advantage of constexpr in Time and add time conversion methods
By making the Time constructor constexpr we can optimize creating a
Time instance from hardcoded values.

Also add more functions to convert between Time and various time units.
2021-03-08 15:29:11 +01:00
Tom
42bc229500 AK: Initialize the AK::Time members
Since we tell the compiler to provide a default constructor we
need to initialize the member variables.
2021-03-08 15:29:11 +01:00
Ben Wiederhake
340813e087 AK: Make Time more usable 2021-03-02 08:36:08 +01:00
Ben Wiederhake
bd6be910e5 AK: Implement C++ 'Time' type for easier time-calculations
This adds a bunch of code in the hope that other, wrong code can be deleted.

Related to #5315.
2021-03-02 08:36:08 +01:00
Ben Wiederhake
b7c5d977c7 AK: Remove unused template 2021-03-02 08:36:08 +01:00
Andrew Kaster
1219c65249 AK: Add CLOCK_*_COARSE aliases for darwin and BSD variants
The coarse clocks in time.h are a linux extension that we've adopted.
MacOS and the BSDs don't have it, so we need an alias in a platform
header for Lagom builds.
2020-12-28 19:35:32 +01:00
Ben Wiederhake
8940bc3503 Meta+AK: Make clang-format-10 clean 2020-09-25 21:18:17 +02:00
Nico Weber
1ab8939077 AK+LibC+LibCore: Have fewer implementations of day_of_week
The implementation in LibC did a timestamp->day-of-week conversion
which looks like a valuable thing to have. But we only need it in
time_to_tm, where we already computed year/month/day -- so let's
consolidate on the day_of_week function in DateTime (which is
getting extracted to AK).
2020-08-26 08:52:07 +02:00
Nico Weber
2236385e1f AK+LibC+LibCore: Add a days_in_year function 2020-08-26 08:52:07 +02:00
Nico Weber
a7a18b478e AK+LibC+LibCore: Have fewer implementations of days_in_month 2020-08-26 08:52:07 +02:00
Nico Weber
c85e679e2d AK+LibCore+Kernel: Have fewer implementations of day_of_year
The JS tests pointed out that the implementation in DateTime
had an off-by-one in the month when doing the leap year check,
so this change fixes that bug.
2020-08-26 08:52:07 +02:00
Nico Weber
9b17082899 AK+LibC+Kernel: Have fewer implementations of year_to_days_in_epoch
I believe the implementation in RTC.cpp had an off-by-one
in the year passed to is_leap_year(). If that's true, then this
fixes that too.
2020-08-26 08:52:07 +02:00
Nico Weber
84ed257959 AK+LibC+LibCore+Kernel: Have fewer implementations of is_leap_year 2020-08-26 08:52:07 +02:00
Tom
df52061cdb AK: Add more time convenience functions and comparison operators 2020-08-03 18:23:00 +02:00
Tom
df3c8267d4 AK: Fix adding timeval/timespec
tv_usec and tv_nsec should always be less than one second.
2020-08-03 15:59:11 +02:00
Nico Weber
9256757b59 AK: Add timespec_add and timespec_sub 2020-06-22 16:00:20 +02:00
Brian Gianforcaro
1a80aa999a AK: Add timeval_to_timespec and timespec_to_timeval conversion methods
Add the ability to easily convert between timeval and timespec.
2020-04-26 21:31:52 +02:00
Andreas Kling
94ca55cefd Meta: Add license header to source files
As suggested by Joshua, this commit adds the 2-clause BSD license as a
comment block to the top of every source file.

For the first pass, I've just added myself for simplicity. I encourage
everyone to add themselves as copyright holders of any file they've
added or modified in some significant way. If I've added myself in
error somewhere, feel free to replace it with the appropriate copyright
holder instead.

Going forward, all new source files should include a license header.
2020-01-18 09:45:54 +01:00
Andreas Kling
29a9430246 AK: Make timeval_add() and timeval_sub() take references. 2019-06-06 18:02:28 +02:00
Andreas Kling
cbd858544d LibC: Move struct timeval to sys/time.h. #POSIX 2019-05-28 13:48:06 +02:00
Robin Burchell
df74a9222f Kernel: Fix timeout support in select
The scheduler expects m_select_timeout to act as a deadline. That is, it
should contain the time that a task should wake at -- but we were
directly copying the time from userspace, which meant that it always
returned virtually immediately.

At the same time, fix CEventLoop to not rely on the broken select behavior
by subtracting the current time from the time of the nearest timer.
2019-05-18 02:57:38 +02:00