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112 lines
3.2 KiB
Odin
112 lines
3.2 KiB
Odin
#+build linux, darwin, netbsd, openbsd, freebsd, haiku
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package posix
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import "core:c"
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when ODIN_OS == .Darwin {
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foreign import lib "system:System"
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} else {
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foreign import lib "system:c"
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}
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// sched.h - execution scheduling
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foreign lib {
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/*
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Returns the minimum for the given scheduling policy.
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[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/sched_get_priority_max.html ]]
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*/
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sched_get_priority_max :: proc(policy: Sched_Policy) -> c.int ---
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/*
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Returns the maximum for the given scheduling policy.
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Returns: -1 (setting errno) on failure, the maximum on success
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[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/sched_get_priority_max.html ]]
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*/
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sched_get_priority_min :: proc(policy: Sched_Policy) -> c.int ---
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/*
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Forces the running thread to relinquish the processor until it again becomes the head of its thread list.
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*/
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sched_yield :: proc() -> result ---
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/* NOTE: unimplemented on darwin (I think?).
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/*
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Get the scheduling params of a process, pid of 0 will return that of the current process.
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[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/sched_getparam.html ]]
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*/
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sched_getparam :: proc(pid: pid_t, param: ^sched_param) -> result ---
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/*
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Sets the scheduling parameters of the given process, pid of 0 will set that of the current process.
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[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/sched_setparam.html ]]
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*/
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sched_setparam :: proc(pid: pid_t, param: ^sched_param) -> result ---
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/*
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Returns the scheduling policy of a process, pid of 0 will return that of the current process.
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[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/sched_getscheduler.html ]]
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*/
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sched_getscheduler :: proc(pid: pid_t) -> Sched_Policy ---
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/*
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Sets the scheduling policy and parameters of the process, pid 0 will be the current process.
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[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/sched_setscheduler.html ]]
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*/
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sched_setscheduler :: proc(pid: pid_t, policy: Sched_Policy, param: ^sched_param) -> result ---
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/*
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Updates the timespec structure to contain the current execution time limit for the process.
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pid of 0 will return that of the current process.
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[[ More; https://pubs.opengroup.org/onlinepubs/9699919799/functions/sched_rr_get_interval.html ]]
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*/
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sched_rr_get_interval :: proc(pid: pid_t, interval: ^timespec) -> result ---
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*/
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}
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Sched_Policy :: enum c.int {
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// Error condition of sched_getscheduler.
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ERROR = -1,
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// First in-first out (FIFO) scheduling policy.
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FIFO = SCHED_FIFO,
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// Round robin scheduling policy.
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RR = SCHED_RR,
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// Another scheduling policy.
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OTHER = SCHED_OTHER,
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}
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when ODIN_OS == .Darwin {
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SCHED_FIFO :: 4
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SCHED_RR :: 2
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// SCHED_SPORADIC :: 3 NOTE: not a thing on freebsd, netbsd and probably others, leaving it out
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SCHED_OTHER :: 1
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} else when ODIN_OS == .FreeBSD || ODIN_OS == .OpenBSD {
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SCHED_FIFO :: 1
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SCHED_RR :: 3
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SCHED_OTHER :: 2
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} else when ODIN_OS == .NetBSD || ODIN_OS == .Linux {
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SCHED_OTHER :: 0
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SCHED_FIFO :: 1
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SCHED_RR :: 2
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} else when ODIN_OS == .Haiku {
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SCHED_FIFO :: 1
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SCHED_RR :: 2
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// SCHED_SPORADIC :: 3 NOTE: not a thing on freebsd, netbsd and probably others, leaving it out
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SCHED_OTHER :: 4
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}
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