serenity/Kernel/Scheduler.h
Timon Kruiper e8aff0c1c8 Kernel: Use InterruptsState in Spinlock code
This commit updates the lock function from Spinlock and
RecursiveSpinlock to return the InterruptsState of the processor,
instead of the processor flags. The unlock functions would only look at
the interrupt flag of the processor flags, so we now use the
InterruptsState enum to clarify the intent, and such that we can use the
same Spinlock code for the aarch64 build.

To not break the build, all the call sites are updated aswell.
2022-08-26 12:51:57 +02:00

62 lines
1.7 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Assertions.h>
#include <AK/Function.h>
#include <AK/IntrusiveList.h>
#include <AK/Types.h>
#include <Kernel/Forward.h>
#include <Kernel/Locking/Spinlock.h>
#include <Kernel/Time/TimeManagement.h>
#include <Kernel/UnixTypes.h>
namespace Kernel {
struct RegisterState;
extern Thread* g_finalizer;
extern WaitQueue* g_finalizer_wait_queue;
extern Atomic<bool> g_finalizer_has_work;
extern RecursiveSpinlock g_scheduler_lock;
struct TotalTimeScheduled {
u64 total { 0 };
u64 total_kernel { 0 };
};
class Scheduler {
public:
static void initialize();
static Thread* create_ap_idle_thread(u32 cpu);
static void set_idle_thread(Thread* idle_thread);
static void timer_tick(RegisterState const&);
[[noreturn]] static void start();
static void pick_next();
static void yield();
static void context_switch(Thread*);
static void enter_current(Thread& prev_thread);
static void leave_on_first_switch(InterruptsState);
static void prepare_after_exec();
static void prepare_for_idle_loop();
static Process* colonel();
static void idle_loop(void*);
static void invoke_async();
static void notify_finalizer();
static Thread& pull_next_runnable_thread();
static Thread* peek_next_runnable_thread();
static bool dequeue_runnable_thread(Thread&, bool = false);
static void enqueue_runnable_thread(Thread&);
static void dump_scheduler_state(bool = false);
static bool is_initialized();
static TotalTimeScheduled get_total_time_scheduled();
static void add_time_scheduled(u64, bool);
static u64 (*current_time)();
};
}