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#+build linux, darwin, netbsd, openbsd, freebsd, haiku
package posix
import "core:c"
import "core:c/libc"
when ODIN_OS == .Darwin {
foreign import lib "system:System"
} else {
foreign import lib "system:c"
}
// time.h - time types
foreign lib {
/*
Convert the broken down time in the structure to a string form: Sun Sep 16 01:03:52 1973.
[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/asctime_r.html ]]
*/
asctime_r :: proc(tm: ^tm, buf: [^]c.char) -> cstring ---
/*
Convert a time value to a date and time string in the same format as asctime().
[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/ctime_r.html ]]
*/
@(link_name=LCTIMER)
ctime_r :: proc(clock: ^time_t, buf: [^]c.char) -> cstring ---
/*
Converts the time in seconds since epoch to a broken-down tm struct.
Returns: nil (setting errno) on failure, the result pointer on success.
[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/gmtime_r.html ]]
*/
@(link_name=LGMTIMER)
gmtime_r :: proc(timer: ^time_t, result: ^tm) -> ^tm ---
/*
Convert the time in seconds since epoch to a broken-down tm struct in local time.
Returns: nil (setting errno) on failure, the result pointer on success.
[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/localtime_r.html ]]
*/
@(link_name=LLOCALTIMER)
localtime_r :: proc(timer: ^time_t, result: ^tm) -> ^tm ---
/*
Returns the resolution of any clock.
[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/clock_getres.html ]]
*/
@(link_name=LCLOCKGETRES)
clock_getres :: proc(clock_id: Clock, res: ^timespec) -> result ---
/*
Returns the current value tp for the specified clock, clock_id.
[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/clock_getres.html ]]
*/
@(link_name=LCLOCKGETTIME)
clock_gettime :: proc(clock_id: Clock, tp: ^timespec) -> result ---
/*
Sets the specified clock's time.
[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/clock_getres.html ]]
*/
@(link_name=LCLOCKSETTIME)
clock_settime :: proc(clock_id: Clock, tp: ^timespec) -> result ---
/*
Converts a string representation of a date or time into a broken-down time.
Returns: nil (setting getdate_err) on failure, the broken-down time otherwise
[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/getdate.html ]]
*/
getdate :: proc(string: cstring) -> ^tm ---
/*
Causes the current thread to be suspended from execution until either the time interval
specified by rqtp has elapsed or a signal is delivered.
Returns: -1 on failure (setting errno), if it was due to a signal, rmtp will be filled with the
remaining time, 0 if all time has been slept
[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/nanosleep.html ]]
*/
@(link_name=LNANOSLEEP)
nanosleep :: proc(rqtp: ^timespec, rmtp: ^timespec) -> result ---
/*
Converts the character string to values which are stored in tm, using the specified format.
[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/strptime.html ]]
*/
strptime :: proc(buf: [^]c.char, format: cstring, tm: ^tm) -> cstring ---
/*
Uses the value of the environment variable TZ (or default) to set time conversion info.
`daylight` is set to whether daylight saving time conversion should be done.
`timezone` is set to the difference, in seconds, between UTC and local standard time.
`tzname` is set by `tzname[0] = "std"` and `tzname[1] = "dst"`
Example:
posix.tzset()
fmt.println(posix.tzname)
fmt.println(posix.daylight)
fmt.println(posix.timezone)
Possible Output:
["CET", "CEST"]
true
-3600
[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/tzset.html ]]
*/
tzset :: proc() ---
// Whether daylight saving conversion should be done.
daylight: b32
// The time in seconds between UTC and local standard time.
@(link_name=LTIMEZONE)
timezone: c.long
tzname: [2]cstring
}
time_t :: libc.time_t
clock_t :: libc.clock_t
tm :: libc.tm
timespec :: libc.timespec
CLOCKS_PER_SEC :: libc.CLOCKS_PER_SEC
asctime :: libc.asctime
clock :: libc.clock
ctime :: libc.ctime
difftime :: libc.difftime
gmtime :: libc.gmtime
localtime :: libc.localtime
mktime :: libc.mktime
strftime :: libc.strftime
time :: libc.time
Clock :: enum clockid_t {
// system-wide monotonic clock, defined as clock measuring real time,
// can be set with clock_settime() and cannot have negative clock jumps.
MONOTONIC = CLOCK_MONOTONIC,
// CPU-time clock associated with the process making a clock() function call.
PROCESS_CPUTIME_ID = CLOCK_PROCESS_CPUTIME_ID,
// system-wide clock measuring real time.
REALTIME = CLOCK_REALTIME,
// CPU-time clock associated with the thread making a clock() function call.
THREAD_CPUTIME_ID = CLOCK_THREAD_CPUTIME_ID,
}
when ODIN_OS == .NetBSD {
@(private) LCTIMER :: "__ctime_r50"
@(private) LGMTIMER :: "__gmtime_r50"
@(private) LLOCALTIMER :: "__localtime_r50"
@(private) LCLOCKGETRES :: "__clock_getres50"
@(private) LCLOCKGETTIME :: "__clock_gettime50"
@(private) LCLOCKSETTIME :: "__clock_settime50"
@(private) LNANOSLEEP :: "__nanosleep50"
@(private) LTIMEZONE :: "__timezone13"
} else {
@(private) LCTIMER :: "ctime_r"
@(private) LGMTIMER :: "gmtime_r"
@(private) LLOCALTIMER :: "localtime_r"
@(private) LCLOCKGETRES :: "clock_getres"
@(private) LCLOCKGETTIME :: "clock_gettime"
@(private) LCLOCKSETTIME :: "clock_settime"
@(private) LNANOSLEEP :: "nanosleep"
@(private) LTIMEZONE :: "timezone"
}
when ODIN_OS == .Darwin {
clockid_t :: distinct c.int
CLOCK_MONOTONIC :: 6
CLOCK_PROCESS_CPUTIME_ID :: 12
CLOCK_REALTIME :: 0
CLOCK_THREAD_CPUTIME_ID :: 16
foreign lib {
getdate_err: Errno
}
} else when ODIN_OS == .FreeBSD {
clockid_t :: distinct c.int
CLOCK_MONOTONIC :: 4
CLOCK_PROCESS_CPUTIME_ID :: 15
CLOCK_REALTIME :: 0
CLOCK_THREAD_CPUTIME_ID :: 14
foreign lib {
getdate_err: Errno
}
} else when ODIN_OS == .NetBSD {
clockid_t :: distinct c.uint
CLOCK_MONOTONIC :: 3
CLOCK_PROCESS_CPUTIME_ID :: 0x40000000
CLOCK_REALTIME :: 0
CLOCK_THREAD_CPUTIME_ID :: 0x20000000
foreign lib {
getdate_err: Errno
}
} else when ODIN_OS == .OpenBSD {
clockid_t :: distinct c.uint
CLOCK_MONOTONIC :: 3
CLOCK_PROCESS_CPUTIME_ID :: 2
CLOCK_REALTIME :: 0
CLOCK_THREAD_CPUTIME_ID :: 4
getdate_err: Errno = .ENOSYS // NOTE: looks like it's not a thing on OpenBSD.
} else when ODIN_OS == .Haiku {
clockid_t :: distinct c.int32_t
CLOCK_MONOTONIC :: 0
CLOCK_PROCESS_CPUTIME_ID :: -2
CLOCK_REALTIME :: -1
CLOCK_THREAD_CPUTIME_ID :: -3
getdate_err: Errno = .ENOSYS // NOTE: looks like it's not a thing on Haiku.
} else when ODIN_OS == .Linux {
clockid_t :: distinct c.int
CLOCK_MONOTONIC :: 1
CLOCK_PROCESS_CPUTIME_ID :: 2
CLOCK_REALTIME :: 0
CLOCK_THREAD_CPUTIME_ID :: 3
foreign lib {
getdate_err: Errno
}
}
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