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Kernel: Make scheduler control syscalls more generic

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The syscalls are renamed as they no longer reflect the exact POSIX
functionality. They can now handle setting/getting scheduler parameters
for both threads and processes.
This commit is contained in:
kleines Filmröllchen 2022-07-24 16:00:51 +02:00 • committed by Linus Groh
parent 7bb34279cd
commit b8567d7a9d
6 changed files with 95 additions and 42 deletions
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16
Userland/Libraries/LibC/sched.cpp
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@ -32,14 +32,26 @@ int sched_get_priority_max([[maybe_unused]] int policy)
// https://pubs.opengroup.org/onlinepubs/9699919799/functions/sched_setparam.html
int sched_setparam(pid_t pid, const struct sched_param* param)
{
int rc = syscall(SC_sched_setparam, pid, param);
Syscall::SC_scheduler_parameters_params parameters {
.pid_or_tid = pid,
.mode = Syscall::SchedulerParametersMode::Process,
.parameters = *param,
};
int rc = syscall(SC_scheduler_set_parameters, &parameters);
__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 rc = syscall(SC_sched_getparam, pid, param);
Syscall::SC_scheduler_parameters_params parameters {
.pid_or_tid = pid,
.mode = Syscall::SchedulerParametersMode::Process,
.parameters = {},
};
int rc = syscall(SC_scheduler_get_parameters, &parameters);
if (rc == 0)
*param = parameters.parameters;
__RETURN_WITH_ERRNO(rc, rc, -1);
}
}