RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-31 17:38:12 +00:00
Code Issues Activity Actions

Kernel/LibC: Implement sched_* functionality to set/get process priority

Browse source 
Right now, we allow anything inside a user to raise or lower any other process's
priority. This feels simple enough to me. Linux disallows raising, but
that's annoying in practice.
This commit is contained in:
Robin Burchell 2019-05-29 23:20:51 +02:00 • committed by Andreas Kling
parent b160677e9e
commit 9cd0f6ffac
8 changed files with 103 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

24
LibC/sched.cpp
View file

@ -10,5 +10,29 @@ int sched_yield()
__RETURN_WITH_ERRNO(rc, rc, -1);
}
int sched_get_priority_min(int policy)
{
(void)policy;
return 0; // Idle
}
int sched_get_priority_max(int policy)
{
(void)policy;
return 3; // High
}
int sched_setparam(pid_t pid, const struct sched_param *param)
{
int rc = syscall(SC_sched_setparam, pid, param);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
int sched_getparam(pid_t pid, struct sched_param *param)
{
int rc = syscall(SC_sched_getparam, pid, param);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
}