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e1481dcb42
If we receive an IRQ while the idle task is running, prevent it from re-halting the CPU after the IRQ handler returns. Instead have the idle task yield to the scheduler, so we can see if the IRQ has unblocked something.
47 lines
1.2 KiB
C++
47 lines
1.2 KiB
C++
#pragma once
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#include <AK/Assertions.h>
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#include <AK/Types.h>
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#include <AK/Function.h>
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#include <AK/IntrusiveList.h>
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class Process;
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class Thread;
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struct RegisterDump;
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struct SchedulerData;
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extern Thread* current;
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extern Thread* g_last_fpu_thread;
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extern Thread* g_finalizer;
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extern u64 g_uptime;
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extern SchedulerData* g_scheduler_data;
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class Scheduler {
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public:
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static void initialize();
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static void timer_tick(RegisterDump&);
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static bool pick_next();
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static void pick_next_and_switch_now();
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static void switch_now();
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static bool yield();
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static bool donate_to(Thread*, const char* reason);
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static bool context_switch(Thread&);
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static void prepare_to_modify_tss(Thread&);
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static Process* colonel();
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static bool is_active();
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static void beep();
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static void idle_loop();
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static void stop_idling();
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template<typename Callback>
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static inline IterationDecision for_each_runnable(Callback);
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template<typename Callback>
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static inline IterationDecision for_each_nonrunnable(Callback);
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static void init_thread(Thread& thread);
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static void update_state_for_thread(Thread& thread);
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private:
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static void prepare_for_iret_to_new_process();
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};
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