76 lines
1.3 KiB
C
76 lines
1.3 KiB
C
#pragma once
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#include "arch/MMU.h"
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#include "memory/UserVM.h"
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#include <luna/LinkedList.h>
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#include <luna/OwnedPtr.h>
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#include <luna/Result.h>
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#include <luna/Stack.h>
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#ifdef ARCH_X86_64
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#include "arch/x86_64/CPU.h"
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#else
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#error "Unknown architecture."
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#endif
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enum class ThreadState
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{
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Idle,
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Runnable,
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Sleeping,
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Dying
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};
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// FIXME: Save floating point state. (SSE registers on x86_64 using FXSAVE and FXRSTOR)
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struct Thread : public LinkedListNode<Thread>
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{
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Registers regs;
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u64 id;
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u64 ticks = 0;
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u64 ticks_in_user = 0;
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u64 ticks_in_kernel = 0;
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u64 ticks_left;
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u64 sleep_ticks_left;
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Stack stack;
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Stack kernel_stack;
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OwnedPtr<UserVM> vm_allocator;
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ThreadState state = ThreadState::Runnable;
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bool is_kernel { true };
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PageDirectory* directory;
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bool is_idle()
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{
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return state == ThreadState::Idle;
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}
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void init_regs_kernel();
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void init_regs_user();
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void set_arguments(u64 arg1, u64 arg2, u64 arg3, u64 arg4);
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void set_ip(u64 ip);
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u64 ip();
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void set_sp(u64 sp);
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u64 sp();
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static void init();
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};
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void switch_context(Thread* old_thread, Thread* new_thread, Registers* regs);
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bool is_in_kernel(Registers* regs);
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Result<Thread*> new_thread();
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extern LinkedList<Thread> g_threads;
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