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Scheduler fix, User RR

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This commit is contained in:
xamidev
2026-04-03 19:18:08 +02:00
parent 437bd0e751
commit 0240220796
7 changed files with 88 additions and 21 deletions
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src/sched/scheduler.c
+34 -18
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@@ -50,31 +50,47 @@ struct cpu_status* scheduler_schedule(struct cpu_status* context)
panic(NULL, "current_process->context is NULL");
}
if (current_process->next == NULL) {
return current_process->context;
}
current_process->context = context;
for (;;) {
struct process* prev_process = current_process;
if (current_process->next != NULL) {
current_process = current_process->next;
} else {
current_process = processes_list;
}
if (current_process != NULL && current_process->status == DEAD) {
process_delete(&prev_process, current_process);
current_process = NULL;
if (current_process->status == DEAD) {
struct process* dead_process = current_process;
struct process* next_process = (dead_process->next != NULL) ? dead_process->next : processes_list;
process_delete(&processes_list, dead_process);
if (processes_list == NULL || next_process == dead_process) {
current_process = idle_proc;
return idle_proc->context;
} else {
current_process->status = RUNNING;
break;
}
current_process = next_process;
} else if (current_process->next != NULL) {
current_process = current_process->next;
} else {
current_process = processes_list;
}
for (;;) {
if (current_process->status == DEAD) {
struct process* dead_process = current_process;
struct process* next_process = (current_process->next != NULL) ? current_process->next : processes_list;
process_delete(&processes_list, dead_process);
if (processes_list == NULL || next_process == dead_process) {
current_process = idle_proc;
return idle_proc->context;
}
current_process = next_process;
continue;
}
current_process->status = RUNNING;
break;
}
// Here, we chose next running process so we load its kernel stack & page tables
tss.rsp0 = (uint64_t)current_process->kernel_stack;
load_cr3(VIRT_TO_PHYS((uint64_t)current_process->root_page_table));