65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
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#ifndef KERNEL_THREAD_H_
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#define KERNEL_THREAD_H_
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#include <kernel/msg.h>
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#include <kernel/object.h>
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#include <kernel/vm-controller.h>
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#define THREAD_KSTACK_ORDER VM_PAGE_4K
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enum thread_state {
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THREAD_READY = 1,
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THREAD_SLEEPING = 2,
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THREAD_STOPPED = 3,
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};
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enum thread_flags {
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THREAD_F_NEED_RESCHED = 0x01u,
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THREAD_F_NO_PREEMPT = 0x02u,
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};
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struct thread {
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struct object thr_base;
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enum thread_state tr_state;
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enum thread_flags tr_flags;
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struct task *tr_parent;
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unsigned int tr_id;
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unsigned int tr_prio;
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cycles_t tr_charge_period_start;
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cycles_t tr_quantum_cycles, tr_quantum_target;
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cycles_t tr_total_cycles;
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virt_addr_t tr_ip, tr_sp, tr_bp;
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virt_addr_t tr_cpu_user_sp, tr_cpu_kernel_sp;
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struct runqueue *tr_rq;
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struct msg tr_msg;
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struct page_request tr_page_req;
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struct queue_entry tr_parent_entry;
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struct queue_entry tr_rqentry;
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struct vm_page *tr_kstack;
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struct vm_object *tr_ustack;
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};
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extern struct thread *thread_alloc(void);
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extern struct thread *thread_cast(struct object *obj);
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extern kern_status_t thread_init_kernel(struct thread *thr, virt_addr_t ip);
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extern kern_status_t thread_init_user(
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struct thread *thr,
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virt_addr_t ip,
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virt_addr_t sp,
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const uintptr_t *args,
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size_t nr_args);
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extern int thread_priority(struct thread *thr);
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extern void thread_awaken(struct thread *thr);
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extern void idle(void);
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extern struct thread *create_kernel_thread(void (*fn)(void));
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extern struct thread *create_idle_thread(void);
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#endif
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