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#include <types.h>
#include <scheduler.h>
#include <libk/list.h>
#include <process.h>
#include <heap.h>
#include <libk/string.h>
#include <libk/stdio.h>
#include <panic.h>
#include <regs.h>
#include <userspace.h>
#include <apic.h>
mutex_t scheduler_lock;
uint32_t sched_init = 0;
__attribute__((noreturn)) void init_scheduler()
{
uint32_t argc;
uint64_t *argv;
INIT_LIST(process_queue.list);
init_mutex(&scheduler_lock);
argc = 1;
argv = (uint64_t *)kalloc(argc * sizeof(uint64_t));
memset(argv, 0, sizeof(uint64_t) * argc);
init_process(0, (uint64_t)idle_thread, argc, argv);
curr_process = init_process(0, (uint64_t)init_ap_cpus, argc, argv);
init_process(3, (uint64_t)begin_userspace, argc, argv);
sched_init = 1;
restore_context_from_rsp(curr_process->rsp);
}
process_t *scheduler()
{
lock(scheduler_lock);
process_t *pos = curr_process;
if (list_is_empty((&process_queue.list)))
return NULL;
process_t *next_process = list_next_entry(pos, list);
while (next_process->rsp == 0) {
next_process = list_next_entry(next_process, list);
}
unlock(scheduler_lock);
return next_process;
}
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