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LibC: Add POSIX spec comments for sched APIs

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Brian Gianforcaro 2021-12-20 01:30:18 -08:00 • committed by Brian Gianforcaro
parent 6db9b6cf79
commit 0f53e0aaea
1 changed files with 5 additions and 0 deletions
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5
Userland/Libraries/LibC/sched.cpp
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@ -10,28 +10,33 @@
extern "C" { extern "C" {
// https://pubs.opengroup.org/onlinepubs/9699919799/functions/sched_yield.html
int sched_yield() int sched_yield()
{ {
int rc = syscall(SC_yield); int rc = syscall(SC_yield);
__RETURN_WITH_ERRNO(rc, rc, -1); __RETURN_WITH_ERRNO(rc, rc, -1);
} }
// https://pubs.opengroup.org/onlinepubs/9699919799/functions/sched_get_priority_min.html
int sched_get_priority_min([[maybe_unused]] int policy) int sched_get_priority_min([[maybe_unused]] int policy)
{ {
return 0; // Idle return 0; // Idle
} }
// https://pubs.opengroup.org/onlinepubs/9699919799/functions/sched_get_priority_max.html
int sched_get_priority_max([[maybe_unused]] int policy) int sched_get_priority_max([[maybe_unused]] int policy)
{ {
return 3; // High return 3; // High
} }
// https://pubs.opengroup.org/onlinepubs/9699919799/functions/sched_setparam.html
int sched_setparam(pid_t pid, const struct sched_param* param) int sched_setparam(pid_t pid, const struct sched_param* param)
{ {
int rc = syscall(SC_sched_setparam, pid, param); int rc = syscall(SC_sched_setparam, pid, param);
__RETURN_WITH_ERRNO(rc, rc, -1); __RETURN_WITH_ERRNO(rc, rc, -1);
} }
// https://pubs.opengroup.org/onlinepubs/9699919799/functions/sched_getparam.html
int sched_getparam(pid_t pid, struct sched_param* param) int sched_getparam(pid_t pid, struct sched_param* param)
{ {
int rc = syscall(SC_sched_getparam, pid, param); int rc = syscall(SC_sched_getparam, pid, param);